Coastal Waters Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
975 FZHW50 PHFO 220603 CWFHFO Coastal Waters Forecast National Weather Service Honolulu HI 803 PM HST Mon Sep 21 2026 Hawaiian coastal waters within 40 nautical miles including the Hawaiian Islands Humpback Whale National Marine Sanctuary. PHZ100-221915- 803 PM HST Mon Sep 21 2026 .Synopsis for Hawaiian coastal waters... Moderate to locally strong trade winds will persist through Wednesday before strengthening during the latter half of the week as a trough or potential tropical disturbance moves near the islands. Shower coverage will also increase, along with the potential for isolated thunderstorms, particularly across the eastern waters. $$ PHZ110-221915- Kauai Northwest Waters- 803 PM HST Mon Sep 21 2026 .REST OF TONIGHT...East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 7 seconds. Isolated showers. .TUESDAY...East northeast winds to 15 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at 9 seconds and north 3 feet at 12 seconds. Isolated showers. .TUESDAY NIGHT...East northeast winds 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at 9 seconds and north 3 feet at 11 seconds. Scattered showers. .WEDNESDAY...East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 9 seconds and north northwest 3 feet at 10 seconds. Isolated showers in the morning. .WEDNESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 8 seconds and north northwest 3 feet at 9 seconds. .THURSDAY...East northeast winds to 20 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at 8 seconds and south southwest 3 feet at 14 seconds. Isolated showers in the afternoon. .THURSDAY NIGHT...East northeast winds to 20 knots. Seas 6 to 7 feet. Wave Detail: East 6 feet at 8 seconds and southwest 3 feet at 16 seconds. Scattered showers. .FRIDAY...East northeast winds 20 to 25 knots. Seas 6 to 8 feet. Wave Detail: East 8 feet at 9 seconds and southwest 4 feet at 16 seconds. Isolated showers. Scattered showers after midnight. .SATURDAY...East northeast winds 20 to 25 knots. Seas 7 to 10 feet. Wave Detail: East 9 feet at 9 seconds and southwest 4 feet at 16 seconds. Scattered showers. $$ PHZ111-221915- Kauai Windward Waters- 803 PM HST Mon Sep 21 2026 .REST OF TONIGHT...East northeast winds to 15 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 7 seconds and south 3 feet at 13 seconds. Scattered showers. .TUESDAY...East northeast winds 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at 8 seconds, south 3 feet at 12 seconds and north 3 feet at 12 seconds. Scattered showers. .TUESDAY NIGHT...East winds to 15 knots. Seas to 7 feet. Wave Detail: East 6 feet at 9 seconds and north 3 feet at 11 seconds. Scattered showers. .WEDNESDAY...East northeast winds to 15 knots. Seas 6 to 7 feet. Wave Detail: East 6 feet at 9 seconds and north northwest 3 feet at 10 seconds. Isolated showers in the morning. .WEDNESDAY NIGHT...East northeast winds to 15 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at 8 seconds and north northwest 3 feet at 10 seconds. Isolated showers after midnight. .THURSDAY...East northeast winds 15 to 20 knots. Seas 5 to 8 feet. Wave Detail: East southeast 6 feet at 8 seconds. Isolated showers in the morning. Scattered showers in the afternoon. .THURSDAY NIGHT...East northeast winds to 20 knots. Seas 6 to 8 feet. Wave Detail: East southeast 7 feet at 8 seconds. Scattered showers. .FRIDAY...East northeast winds 20 to 25 knots. Seas 7 to 9 feet. Wave Detail: East 9 feet at 9 seconds. Scattered showers. .SATURDAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Wave Detail: East 9 feet at 9 seconds. Scattered showers. $$ PHZ112-221915- Kauai Leeward Waters- 803 PM HST Mon Sep 21 2026 .REST OF TONIGHT...East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds and south 3 feet at 13 seconds. .TUESDAY...Northeast winds 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 6 seconds, north 3 feet at 11 seconds and south 3 feet at 12 seconds. Isolated showers in the afternoon. .TUESDAY NIGHT...East northeast winds 10 to 15 knots. In the Kaulakahi Channel, winds variable less than 10 knots, becoming east northeast 7 to 10 knots after midnight. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds and north 3 feet at 11 seconds. Scattered showers. .WEDNESDAY...East northeast winds 10 to 15 knots, rising to 15 to 20 knots in the afternoon. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds and north northwest 3 feet at 10 seconds. Isolated showers. .WEDNESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 7 seconds and north northwest 3 feet at 9 seconds. .THURSDAY...East northeast winds 15 to 20 knots. In the Kaulakahi Channel, east northeast winds 7 to 10 knots, becoming 10 to 15 knots in the afternoon. Seas 5 to 8 feet. Wave Detail: East 6 feet at 7 seconds and south southwest 3 feet at 14 seconds. Isolated showers. .THURSDAY NIGHT...Winds east northeast winds 15 to 20 knots. Seas 5 to 8 feet. Wave Detail: East 6 feet at 8 seconds and southwest 4 feet at 16 seconds. Isolated showers in the evening. Scattered showers after midnight. .FRIDAY...East northeast winds 20 to 25 knots. In the Kaulakahi Channel, east northeast winds 10 to 15 knots, rising to 15 to 20 knots. Seas 6 to 8 feet. Wave Detail: East 8 feet at 8 seconds and southwest 4 feet at 16 seconds. Isolated showers. Scattered showers after midnight. .SATURDAY...East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Wave Detail: East 9 feet at 8 seconds and southwest 4 feet at 16 seconds. Isolated showers. Scattered showers after midnight. $$ PHZ113-221915- Kauai Channel- 803 PM HST Mon Sep 21 2026 .REST OF TONIGHT...East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds and south southwest 4 feet at 13 seconds. Isolated showers. .TUESDAY...East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 6 seconds, south southwest 3 feet at 12 seconds and north 3 feet at 12 seconds. Isolated showers. .TUESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 6 seconds and north 3 feet at 11 seconds. Isolated showers. .WEDNESDAY...East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds and north northwest 3 feet at 10 seconds. .WEDNESDAY NIGHT...Northeast winds to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers after midnight. .THURSDAY...Northeast winds to 20 knots. Seas 5 to 7 feet, building to 7 to 8 feet in the afternoon. Wave Detail: East northeast 7 feet at 7 seconds and southwest 3 feet at 17 seconds. Scattered showers. .THURSDAY NIGHT...East northeast winds to 20 knots. Seas 7 to 8 feet. Wave Detail: East 7 feet at 7 seconds and southwest 3 feet at 17 seconds. Isolated showers and thunderstorms in the evening, then scattered showers after midnight. .FRIDAY...East northeast winds 20 to 25 knots. Seas 7 to 8 feet. Wave Detail: East northeast 8 feet at 8 seconds and southwest 4 feet at 16 seconds. Isolated showers. Scattered showers after midnight. .SATURDAY...East northeast winds to 25 knots. Seas 7 to 10 feet. Wave Detail: East northeast 9 feet at 8 seconds and southwest 4 feet at 16 seconds. Scattered showers through the night, then isolated showers through the day. Winds and seas higher in and near tstms. $$ PHZ114-221915- Oahu Windward Waters- 803 PM HST Mon Sep 21 2026 .REST OF TONIGHT...East northeast winds 15 to 20 knots. Seas 6 to 7 feet. Wave Detail: East 6 feet at 7 seconds. Scattered showers. .TUESDAY...East winds to 15 knots. Seas 6 to 7 feet. Wave Detail: East 6 feet at 8 seconds and north 3 feet at 12 seconds. Scattered showers, mainly in the morning. .TUESDAY NIGHT...East winds 15 to 20 knots. Seas 7 to 8 feet. Wave Detail: East 6 feet at 9 seconds and north 3 feet at 11 seconds. Isolated showers. .WEDNESDAY...East northeast winds to 20 knots. Seas to 7 feet. Wave Detail: East 6 feet at 9 seconds and north northwest 3 feet at 10 seconds. .WEDNESDAY NIGHT...East northeast winds to 20 knots. Seas 6 to 7 feet. Wave Detail: East 6 feet at 8 seconds and north northwest 3 feet at 10 seconds. Isolated showers in the evening, then scattered showers after midnight. .THURSDAY...East northeast winds to 20 knots. Seas 6 to 8 feet. Wave Detail: East southeast 8 feet at 8 seconds. Scattered showers. .THURSDAY NIGHT...East northeast winds 20 to 25 knots. Seas 7 to 8 feet. Wave Detail: East southeast 8 feet at 8 seconds. Isolated thunderstorms in the evening. Scattered showers. .FRIDAY...East northeast winds 20 to 25 knots. Seas 8 to 9 feet. Wave Detail: East 9 feet at 8 seconds and southwest 3 feet at 16 seconds. Scattered showers. .SATURDAY...East northeast winds to 25 knots. Seas 9 to 10 feet. Wave Detail: East 10 feet at 8 seconds. Scattered showers. Winds and seas higher in and near tstms. $$ PHZ115-221915- Oahu Leeward Waters- 803 PM HST Mon Sep 21 2026 .REST OF TONIGHT...East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds and south 3 feet at 13 seconds. .TUESDAY...East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds and south 3 feet at 12 seconds. .TUESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds and north northwest 3 feet at 11 seconds. Isolated showers. .WEDNESDAY...East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 5 seconds. .WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 6 seconds. Isolated thunderstorms in the evening. Isolated showers. .THURSDAY...Northeast winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: East northeast 7 feet at 6 seconds and south southwest 3 feet at 14 seconds. Isolated showers. .THURSDAY NIGHT...East northeast winds 20 to 25 knots. Seas 6 to 8 feet. Wave Detail: East northeast 7 feet at 7 seconds and southwest 3 feet at 17 seconds. Isolated thunderstorms in the evening. Isolated heavy showers. .FRIDAY...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: East 8 feet at 7 seconds and southwest 4 feet at 16 seconds. Isolated showers. .SATURDAY...East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Wave Detail: East northeast 9 feet at 8 seconds and southwest 3 feet at 16 seconds. Isolated showers. Winds and seas higher in and near tstms. $$ PHZ116-221915- Kaiwi Channel- 803 PM HST Mon Sep 21 2026 .REST OF TONIGHT...East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at 6 seconds and south 3 feet at 13 seconds. Isolated showers. .TUESDAY...East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at 6 seconds, south 3 feet at 12 seconds and north 3 feet at 12 seconds. Isolated showers in the morning. .TUESDAY NIGHT...East northeast winds to 20 knots. Seas 5 to 8 feet. Wave Detail: East 7 feet at 6 seconds and north 3 feet at 11 seconds. .WEDNESDAY...East northeast winds to 20 knots. Seas 5 to 8 feet. Wave Detail: East northeast 7 feet at 6 seconds and north 3 feet at 10 seconds. .WEDNESDAY NIGHT...East northeast winds to 20 knots. Seas 5 to 8 feet. Wave Detail: East northeast 6 feet at 6 seconds and north 3 feet at 10 seconds. Isolated showers. .THURSDAY...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: East northeast 8 feet at 7 seconds and south southwest 3 feet at 14 seconds. Isolated showers. .THURSDAY NIGHT...East northeast winds to 25 knots. Seas 6 to 9 feet. Wave Detail: East northeast 8 feet at 7 seconds and south southwest 3 feet at 16 seconds. Isolated thunderstorms in the evening. Isolated showers. .FRIDAY...East northeast winds 25 to 30 knots. Seas 6 to 9 feet. Wave Detail: East northeast 9 feet at 8 seconds and southwest 3 feet at 16 seconds. Isolated showers. .SATURDAY...East northeast winds 25 to 30 knots. Seas 7 to 10 feet. Wave Detail: East northeast 10 feet at 8 seconds and southwest 3 feet at 16 seconds. Isolated showers through the night. Isolated showers after midnight. Winds and seas higher in and near tstms. $$ PHZ117-221915- Maui County Windward Waters- 803 PM HST Mon Sep 21 2026 .REST OF TONIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East 6 feet at 7 seconds. Scattered showers. .TUESDAY...East winds 15 to 20 knots. Seas 6 to 8 feet. Wave Detail: East 7 feet at 9 seconds and north 3 feet at 12 seconds. Scattered showers. .TUESDAY NIGHT...East winds to 20 knots. Seas 7 to 8 feet. Wave Detail: East 7 feet at 9 seconds and north 3 feet at 11 seconds. Isolated showers. .WEDNESDAY...East northeast winds to 20 knots. Seas 7 to 8 feet. Wave Detail: East 7 feet at 9 seconds and north 3 feet at 10 seconds. Scattered showers. Isolated thunderstorms in the afternoon. .WEDNESDAY NIGHT...East northeast winds to 20 knots. Seas 7 to 8 feet. Wave Detail: East 7 feet at 8 seconds and north northwest 3 feet at 10 seconds. Isolated thunderstorms in the evening. Scattered showers. .THURSDAY...East northeast winds 20 to 25 knots. Seas 7 to 8 feet. Wave Detail: East southeast 8 feet at 8 seconds. Scattered showers. .THURSDAY NIGHT...East winds 20 to 25 knots. Seas to 8 feet. Wave Detail: East southeast 8 feet at 8 seconds. Isolated thunderstorms in the evening. Scattered showers. .FRIDAY...East winds to 25 knots. Seas 8 to 9 feet. Wave Detail: East 9 feet at 8 seconds. Scattered showers. .SATURDAY...East winds 25 to 30 knots. Seas 8 to 10 feet. Wave Detail: East 10 feet at 8 seconds. Scattered showers. Winds and seas higher in and near tstms. $$ PHZ118-221915- Maui County Leeward Waters- 803 PM HST Mon Sep 21 2026 .REST OF TONIGHT...East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 6 seconds and south 3 feet at 13 seconds. .TUESDAY...East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 6 seconds and south 3 feet at 12 seconds. .TUESDAY NIGHT...East northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers after midnight. .WEDNESDAY...East northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 7 seconds. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, rising to 15 to 20 knots after midnight. Seas 3 to 5 feet. Wave Detail: East 4 feet at 7 seconds. Isolated heavy showers and thunderstorms in the evening, then scattered showers after midnight. .THURSDAY...Northeast winds 10 to 15 knots, becoming east northeast 15 to 20 knots in the afternoon. Seas 4 to 6 feet. Wave Detail: East 5 feet at 8 seconds and south southwest 3 feet at 14 seconds. Scattered showers. .THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 8 seconds and southwest 3 feet at 16 seconds. Scattered showers with isolated thunderstorms in the evening, then isolated showers after midnight. .FRIDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 7 feet at 8 seconds and southwest 3 feet at 16 seconds. Isolated showers. .SATURDAY...East northeast winds 15 to 20 knots, rising to 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: East 7 feet at 8 seconds and southwest 3 feet at 16 seconds. Isolated showers in the morning. Winds and seas higher in and near tstms. $$ PHZ119-221915- Maalaea Bay- 803 PM HST Mon Sep 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY WEDNESDAY MORNING... .REST OF TONIGHT...North northeast winds to 25 knots. Seas to 2 feet or less. Wave Detail: North northeast 2 feet at 3 seconds. .TUESDAY...North winds to 25 knots. Seas to 2 feet or less. Wave Detail: North northeast 2 feet at 3 seconds. .TUESDAY NIGHT...North winds to 25 knots. Seas to 2 feet or less. Wave Detail: Northeast 2 feet at 3 seconds. .WEDNESDAY...North winds to 25 knots. Seas to 2 feet or less. Wave Detail: North northeast 2 feet at 3 seconds. .WEDNESDAY NIGHT...North winds to 25 knots. Seas to 2 feet or less. Wave Detail: North northeast 2 feet at 3 seconds. Isolated thunderstorms in the evening. Isolated heavy showers. .THURSDAY...North winds to 25 knots. Seas to 2 feet or less. Wave Detail: North northeast 2 feet at 3 seconds. Scattered showers. .THURSDAY NIGHT...North winds to 30 knots. Seas to 3 feet. Wave Detail: North northeast 3 feet at 4 seconds. Isolated heavy showers and thunderstorms in the evening. .FRIDAY...North winds to 30 knots. Seas to 3 feet. Wave Detail: North northeast 3 feet at 4 seconds. .SATURDAY...North winds to 30 knots. Seas 3 to 4 feet. Wave Detail: North northeast 4 feet at 4 seconds. Winds and seas higher in and near tstms. $$ PHZ120-221915- Pailolo Channel- 803 PM HST Mon Sep 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY WEDNESDAY MORNING... .REST OF TONIGHT...East northeast winds 20 to 25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 5 seconds. .TUESDAY...East northeast winds 20 to 25 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 5 seconds. .TUESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 4 to 6 feet. Wave Detail: East 4 feet at 5 seconds. .WEDNESDAY...East northeast winds 20 to 25 knots. Seas 4 to 6 feet. Wave Detail: East 4 feet at 4 seconds. .WEDNESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 4 to 6 feet. Wave Detail: East 4 feet at 4 seconds. Isolated showers and thunderstorms in the evening. Scattered showers after midnight. .THURSDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers. .THURSDAY NIGHT...East northeast winds 25 to 30 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at 5 seconds. Isolated thunderstorms in the evening. Isolated heavy showers. .FRIDAY...East northeast winds 25 to 30 knots. Seas 4 to 6 feet. Wave Detail: East 6 feet at 5 seconds. Isolated showers. .SATURDAY...East northeast winds 25 to 30 knots. Seas 5 to 7 feet. Wave Detail: East 7 feet at 5 seconds. Isolated showers through the night. Winds and seas higher in and near tstms. $$ PHZ121-221915- Alenuihaha Channel- 803 PM HST Mon Sep 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY WEDNESDAY MORNING... .REST OF TONIGHT...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: East 7 feet at 7 seconds and south southwest 4 feet at 13 seconds. Scattered showers. .TUESDAY...East northeast winds 20 to 25 knots. Seas 6 to 8 feet. Wave Detail: East 7 feet at 6 seconds and south southwest 3 feet at 12 seconds. Scattered showers. .TUESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: East 7 feet at 7 seconds and south southwest 3 feet at 13 seconds. Scattered showers in the evening. Isolated showers after midnight. .WEDNESDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: East 7 feet at 7 seconds. Scattered heavy showers with isolated thunderstorms. .WEDNESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: East 7 feet at 7 seconds. Isolated thunderstorms in the evening. Scattered heavy showers. .THURSDAY...East northeast winds 20 to 25 knots, rising to 25 to 30 knots in the afternoon. Seas 6 to 9 feet. Wave Detail: East 8 feet at 7 seconds and south southwest 3 feet at 14 seconds. Scattered showers. .THURSDAY NIGHT...East northeast winds 25 to 30 knots. Seas 7 to 10 feet. Wave Detail: East 9 feet at 8 seconds and southwest 3 feet at 16 seconds. Isolated thunderstorms in the evening. Scattered heavy showers. .FRIDAY...East northeast winds 25 to 30 knots, rising to 30 to 35 knots in the afternoon and evening, easing to 25 to 30 knots after midnight. Seas 7 to 10 feet. Wave Detail: East 10 feet at 8 seconds and southwest 3 feet at 16 seconds. Scattered showers. Isolated thunderstorms through the day. .SATURDAY...East northeast winds 25 to 30 knots. Seas 8 to 9 feet. Wave Detail: East 9 feet at 8 seconds and southwest 3 feet at 16 seconds. Isolated showers. Isolated thunderstorms in the afternoon. Winds and seas higher in and near tstms. $$ PHZ122-221915- Big Island Windward Waters- 803 PM HST Mon Sep 21 2026 .REST OF TONIGHT...East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 8 seconds and south southwest 4 feet at 13 seconds. Numerous showers. .TUESDAY...East northeast winds 15 to 20 knots, rising to 20 to 25 knots in the afternoon. Seas 6 to 8 feet. Wave Detail: East 6 feet at 9 seconds, south southwest 4 feet at 12 seconds and north 3 feet at 12 seconds. Numerous showers, mainly in the morning. .TUESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 7 to 8 feet. Wave Detail: East 7 feet at 9 seconds, north 3 feet at 11 seconds and south 3 feet at 13 seconds. Occasional heavy showers with isolated thunderstorms. .WEDNESDAY...East northeast winds to 20 knots. Seas 7 to 8 feet. Wave Detail: East 7 feet at 9 seconds and north 3 feet at 10 seconds. Occasional heavy showers with isolated thunderstorms. .WEDNESDAY NIGHT...East northeast winds to 20 knots. Seas 7 to 8 feet. Wave Detail: East 7 feet at 8 seconds and north 3 feet at 10 seconds. Occasional heavy showers with isolated thunderstorms. .THURSDAY...East northeast winds 20 to 25 knots. Seas 7 to 8 feet. Wave Detail: East southeast 8 feet at 8 seconds. Occasional heavy showers with isolated thunderstorms. .THURSDAY NIGHT...East northeast winds 20 to 25 knots. Seas 7 to 9 feet. Wave Detail: East southeast 8 feet at 8 seconds. Numerous heavy showers with isolated thunderstorms. .FRIDAY...East winds 20 to 25 knots. Seas 8 to 9 feet. Wave Detail: East 8 feet at 8 seconds and south southwest 3 feet at 15 seconds. Numerous heavy showers with isolated thunderstorms. .SATURDAY...East winds 20 to 25 knots. Seas 9 to 10 feet. Wave Detail: East 8 feet at 8 seconds and south southwest 3 feet at 16 seconds. Numerous showers through the night. Isolated thunderstorms. Scattered showers through the day. Winds and seas higher in and near tstms. $$ PHZ123-221915- Big Island Leeward Waters- 803 PM HST Mon Sep 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY WEDNESDAY MORNING... .REST OF TONIGHT...Winds variable less than 10 knots west of the Big Island...East northeast to 20 knots near South Point. Seas 5 to 7 feet. Wave Detail: Northeast 5 feet at 6 seconds and south southwest 4 feet at 13 seconds. .TUESDAY...West of the Big Island, south southeast winds 7 to 10 knots in the morning, becoming variable less than 10 knots. Near South Point, east northeast winds 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: East northeast 5 feet at 6 seconds and south 4 feet at 12 seconds. .TUESDAY NIGHT...West of the Big Island, winds variable less than 10 knots. Near South Point, east northeast winds 15 to 20 knots, becoming northeast 10 to 15 knots after midnight. Seas 5 to 7 feet. Wave Detail: East northeast 5 feet at 6 seconds and south 3 feet at 13 seconds. Scattered showers with isolated thunderstorms in the evening, then isolated showers after midnight. .WEDNESDAY...West of the Big Island, winds variable less than 10 knots. Near South Point, east northeast winds 10 to 15 knots, rising to 15 to 20 knots in the afternoon. Seas 5 to 7 feet. Wave Detail: East northeast 5 feet at 6 seconds and south 3 feet at 12 seconds. Numerous heavy showers with isolated thunderstorms. .WEDNESDAY NIGHT...Winds variable less than 10 knots west of the Big Island...East northeast 15 to 20 knots near South Point. Seas 4 to 6 feet. Wave Detail: Northeast 5 feet at 6 seconds. Numerous heavy showers with isolated thunderstorms. .THURSDAY...Winds variable less than 10 knots west of the Big Island...Northeast 20 to 25 knots near South Point. Seas 5 to 7 feet. Wave Detail: East northeast 6 feet at 7 seconds and south southwest 3 feet at 15 seconds. Numerous showers in the morning. Isolated thunderstorms. Occasional heavy showers in the afternoon. .THURSDAY NIGHT...West of the Big Island, winds variable less than 10 knots. Near South Point, east northeast winds 20 to 25 knots, becoming northeast 15 to 20 knots after midnight. Seas 5 to 8 feet. Wave Detail: East northeast 6 feet at 7 seconds and southwest 3 feet at 16 seconds. Numerous heavy showers with isolated thunderstorms. .FRIDAY...West of the Big Island, winds variable less than 10 knots, becoming east southeast 7 to 10 knots in the evening, then becoming variable less than 10 knots after midnight. Near South Point, northeast winds 20 to 25 knots, becoming east southeast 15 to 20 knots in the evening, then becoming east 20 to 25 knots after midnight. Seas 5 to 8 feet. Wave Detail: Northeast 7 feet at 7 seconds and southwest 3 feet at 16 seconds. Scattered heavy showers with isolated thunderstorms. .SATURDAY...Winds variable less than 10 knots west of the Big Island...East 25 to 30 knots near South Point. Seas 6 to 9 feet. Wave Detail: East northeast 7 feet at 7 seconds and south southwest 3 feet at 16 seconds. Isolated thunderstorms. Scattered heavy showers. Winds and seas higher in and near tstms. $$ PHZ124-221915- Big Island Southeast Waters- 803 PM HST Mon Sep 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY WEDNESDAY MORNING... .REST OF TONIGHT...East northeast winds 20 to 25 knots. Seas to 7 feet. Wave Detail: East 6 feet at 6 seconds and south southwest 4 feet at 13 seconds. Scattered showers. .TUESDAY...East northeast winds 20 to 25 knots. Seas 7 to 9 feet. Wave Detail: East 8 feet at 9 seconds and south southwest 4 feet at 12 seconds. Scattered showers. .TUESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 8 to 10 feet. Wave Detail: East 8 feet at 9 seconds and south 3 feet at 13 seconds. Occasional heavy showers with isolated thunderstorms. .WEDNESDAY...East northeast winds 20 to 25 knots. Seas 7 to 9 feet. Wave Detail: East 8 feet at 8 seconds and south 3 feet at 12 seconds. Occasional heavy showers with isolated thunderstorms. .WEDNESDAY NIGHT...East northeast winds to 25 knots. Seas 7 to 9 feet. Wave Detail: East 8 feet at 8 seconds. Occasional heavy showers with isolated thunderstorms. .THURSDAY...East northeast winds to 25 knots. Seas 8 to 10 feet. Wave Detail: East 10 feet at 8 seconds. Occasional heavy showers with isolated thunderstorms. .THURSDAY NIGHT...Northeast winds to 30 knots. Seas 9 to 11 feet. Wave Detail: East 11 feet at 8 seconds and south southwest 3 feet at 16 seconds. Occasional heavy showers with isolated thunderstorms. .FRIDAY...East northeast winds 25 to 30 knots, veering to east 20 to 25 knots. Seas 9 to 12 feet. Wave Detail: East 11 feet at 8 seconds and south southwest 3 feet at 16 seconds. Numerous heavy showers with isolated thunderstorms. .SATURDAY...East northeast winds 20 to 25 knots, rising to 25 to 30 knots in the evening, easing to 20 to 25 knots after midnight. Seas 9 to 10 feet. Wave Detail: East 8 feet at 8 seconds and south southwest 3 feet at 16 seconds. Numerous showers in the morning. Isolated thunderstorms. Scattered showers. Winds and seas higher in and near tstms. $$