


Coastal Waters Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
964 FZHW50 PHFO 091330 CWFHFO Coastal Waters Forecast National Weather Service Honolulu HI 329 AM HST Thu Oct 9 2025 Hawaiian coastal waters within 40 nautical miles including the Hawaiian Islands Humpback Whale National Marine Sanctuary. PHZ100-100200- 329 AM HST Thu Oct 9 2025 .Synopsis for Hawaiian coastal waters... A surface trough over the western coastal waters will continue to drift northwest through the end of the week. High pressure will build far northeast of the waters this weekend before a potential surface trough develops north of the waters early next week. $$ PHZ110-100200- Kauai Northwest Waters- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots, becoming south southwest 7 to 10 knots this afternoon. Seas to 3 feet. Wave Detail: North 3 feet at 8 seconds. Isolated showers this morning, then scattered showers this afternoon. .TONIGHT...Winds variable less than 10 knots. Seas to 3 feet. Wave Detail: North northeast 3 feet at 9 seconds. Scattered showers. .FRIDAY...Winds variable less than 10 knots. Seas to 3 feet. Wave Detail: North northeast 3 feet at 9 seconds. Isolated showers in the morning, then scattered showers in the afternoon. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: East northeast 3 feet at 13 seconds. Scattered showers. .SATURDAY...East winds to 10 knots. Seas 3 to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds and north northwest 3 feet at 14 seconds. Isolated showers in the morning, then scattered showers in the afternoon. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds and north northwest 3 feet at 13 seconds. Scattered showers. .SUNDAY...East winds 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: Northwest 5 feet at 18 seconds and east southeast 3 feet at 5 seconds. Scattered showers. .MONDAY...East winds 7 to 10 knots. Seas to 7 feet. Wave Detail: Northwest 6 feet at 15 seconds and east 3 feet at 5 seconds. Scattered showers, then numerous showers after midnight. $$ PHZ111-100200- Kauai Windward Waters- 330 AM HST Thu Oct 9 2025 .TODAY...South winds 7 to 10 knots this morning, becoming variable less than 10 knots. Seas to 3 feet. Wave Detail: North 3 feet at 8 seconds. Scattered showers. .TONIGHT...Winds variable less than 10 knots. Seas to 3 feet. Wave Detail: North northeast 3 feet at 9 seconds. Scattered showers, mainly in the evening. .FRIDAY...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: North northeast 3 feet at 9 seconds. Isolated showers. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: East southeast 3 feet at 5 seconds and east northeast 3 feet at 13 seconds. Isolated showers. .SATURDAY...East winds to 10 knots. Seas 3 to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds and northwest 3 feet at 14 seconds. Isolated showers in the morning, then scattered showers in the afternoon. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds and northwest 3 feet at 13 seconds. Scattered showers. .SUNDAY...East winds 7 to 10 knots. Seas 5 to 7 feet. Wave Detail: Northwest 5 feet at 18 seconds and east southeast 3 feet at 5 seconds. Scattered showers. .MONDAY...East winds to 10 knots. Seas to 7 feet. Wave Detail: Northwest 6 feet at 16 seconds and east southeast 3 feet at 5 seconds. Scattered showers through the night, then numerous showers through the day. $$ PHZ112-100200- Kauai Leeward Waters- 330 AM HST Thu Oct 9 2025 .TODAY...South southeast winds 7 to 10 knots this morning, becoming variable less than 10 knots. Seas to 3 feet. Wave Detail: North 3 feet at 8 seconds. Scattered showers. .TONIGHT...Winds variable less than 10 knots. Seas to 3 feet. Wave Detail: North northeast 3 feet at 9 seconds. Scattered showers. .FRIDAY...Winds variable less than 10 knots. Seas to 3 feet. Wave Detail: North northeast 3 feet at 9 seconds. Isolated showers in the morning, then scattered showers in the afternoon. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds and east northeast 3 feet at 17 seconds. Scattered showers. .SATURDAY...East northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds and north northwest 3 feet at 14 seconds. Isolated showers in the morning, then scattered showers in the afternoon. .SATURDAY NIGHT...East northeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: East southeast 3 feet at 6 seconds and north northwest 3 feet at 12 seconds. Scattered showers. .SUNDAY...East northeast winds 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: Northwest 5 feet at 18 seconds and east southeast 3 feet at 5 seconds. Scattered showers. .MONDAY...East winds 7 to 10 knots. Seas 6 to 7 feet. Wave Detail: Northwest 6 feet at 15 seconds and east southeast 3 feet at 5 seconds. Scattered showers, then numerous showers after midnight. $$ PHZ113-100200- Kauai Channel- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: North northeast 3 feet at 8 seconds. Scattered showers, mainly this morning. .TONIGHT...Winds variable less than 10 knots. Seas to 3 feet. Wave Detail: North northeast 3 feet at 9 seconds. Isolated showers. .FRIDAY...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: North northeast 3 feet at 9 seconds. Isolated showers. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: East southeast 3 feet at 5 seconds and east northeast 3 feet at 9 seconds. Isolated showers. .SATURDAY...East northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated showers in the morning, then scattered showers in the afternoon. .SATURDAY NIGHT...East northeast winds to 15 knots. Seas 3 to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds and north northwest 3 feet at 13 seconds. Scattered showers. .SUNDAY...East northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: Northwest 4 feet at 18 seconds and east 3 feet at 5 seconds. Scattered showers. .MONDAY...East winds 7 to 10 knots. Seas 5 to 6 feet. Wave Detail: Northwest 4 feet at 16 seconds and east 3 feet at 4 seconds. Scattered showers, then numerous showers after midnight. $$ PHZ114-100200- Oahu Windward Waters- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots, becoming south 7 to 10 knots this afternoon. Seas to 3 feet. Wave Detail: North 3 feet at 8 seconds. Isolated showers. .TONIGHT...Winds variable less than 10 knots. Seas to 3 feet. Wave Detail: North 3 feet at 9 seconds. Isolated showers. .FRIDAY...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: North northeast 3 feet at 9 seconds. Isolated showers. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: East southeast 3 feet at 5 seconds and east northeast 3 feet at 17 seconds. Isolated showers. .SATURDAY...East winds to 15 knots. Seas 4 to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds and northwest 3 feet at 15 seconds. Isolated showers. .SATURDAY NIGHT...East winds to 15 knots. Seas to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds and northwest 3 feet at 13 seconds. Scattered showers. .SUNDAY...East winds 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: Northwest 5 feet at 18 seconds, east southeast 3 feet at 5 seconds and east 3 feet at 12 seconds. Scattered showers. .MONDAY...East winds to 10 knots. Seas 6 to 7 feet. Wave Detail: Northwest 6 feet at 16 seconds and east southeast 3 feet at 4 seconds. Scattered showers, then numerous showers after midnight. $$ PHZ115-100200- Oahu Leeward Waters- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots. Seas to 3 feet. Isolated showers this morning. .TONIGHT...Winds variable less than 10 knots. Seas to 3 feet. Isolated showers. .FRIDAY...Winds variable less than 10 knots. Seas to 3 feet. Isolated showers. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated showers. .SATURDAY...East northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated showers. .SATURDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated showers in the evening, then scattered showers after midnight. .SUNDAY...East northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: Northwest 4 feet at 18 seconds and east 3 feet at 5 seconds. Isolated showers through the night, then scattered showers through the day. .MONDAY...East northeast winds 7 to 10 knots, becoming variable less than 10 knots, then becoming east southeast 7 to 10 knots after midnight. Seas 4 to 5 feet. Wave Detail: Northwest 4 feet at 16 seconds. Scattered showers. $$ PHZ116-100200- Kaiwi Channel- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots. Seas to 3 feet. Wave Detail: North 3 feet at 8 seconds. Isolated showers this morning. .TONIGHT...Winds variable less than 10 knots. Seas to 3 feet. Wave Detail: North northeast 3 feet at 9 seconds. Isolated showers after midnight. .FRIDAY...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: North northeast 3 feet at 9 seconds. Isolated showers in the morning. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds and east northeast 3 feet at 12 seconds. .SATURDAY...East northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds and northwest 3 feet at 14 seconds. Isolated showers. .SATURDAY NIGHT...East northeast winds to 15 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds and northwest 3 feet at 13 seconds. Isolated showers in the evening, then scattered showers after midnight. .SUNDAY...East northeast winds to 15 knots, easing to 10 knots after midnight. Seas 4 to 6 feet. Wave Detail: Northwest 5 feet at 18 seconds and east 4 feet at 5 seconds. Isolated showers through the night, then scattered showers through the day. .MONDAY...East winds 7 to 10 knots, veering to east southeast 10 to 15 knots after midnight. Seas 4 to 6 feet. Wave Detail: Northwest 5 feet at 16 seconds and east northeast 3 feet at 4 seconds. Scattered showers. $$ PHZ117-100200- Maui County Windward Waters- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots. Seas to 3 feet. Wave Detail: North 3 feet at 9 seconds. .TONIGHT...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: North 3 feet at 9 seconds. Isolated showers. .FRIDAY...East southeast winds 7 to 10 knots. Seas 3 to 4 feet. Wave Detail: North northeast 3 feet at 9 seconds. Isolated showers in the morning. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 5 feet. Wave Detail: Southeast 4 feet at 5 seconds and east northeast 3 feet at 12 seconds. Isolated showers. .SATURDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave Detail: East southeast 4 feet at 5 seconds and northwest 3 feet at 14 seconds. Isolated showers. .SATURDAY NIGHT...East winds to 15 knots. Seas to 5 feet. Wave Detail: East southeast 4 feet at 5 seconds and northwest 3 feet at 13 seconds. Scattered showers. .SUNDAY...East winds 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: Northwest 5 feet at 18 seconds, east southeast 4 feet at 5 seconds and east 3 feet at 13 seconds. Scattered showers. .MONDAY...East southeast winds 10 to 15 knots. Seas 6 to 7 feet. Wave Detail: Northwest 6 feet at 16 seconds, east southeast 3 feet at 4 seconds and east 3 feet at 12 seconds. Scattered showers. $$ PHZ118-100200- Maui County Leeward Waters- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots. Seas to 3 feet. Isolated showers this morning. .TONIGHT...Winds variable less than 10 knots. Seas to 3 feet. Isolated showers. .FRIDAY...Winds variable less than 10 knots, becoming east 7 to 10 knots in the afternoon. Seas to 3 feet. Isolated showers in the morning. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: East southeast 3 feet at 5 seconds. .SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated showers. .SATURDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated showers. .SUNDAY...East northeast winds 7 to 10 knots. Seas 3 to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated showers. Scattered showers after midnight. .MONDAY...East winds 7 to 10 knots, veering to southeast after midnight. Seas 3 to 5 feet. Wave Detail: Northwest 3 feet at 16 seconds. Scattered showers. $$ PHZ119-100200- Maalaea Bay- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots. Seas to 2 feet or less. Isolated showers this morning. .TONIGHT...Winds variable less than 10 knots. Seas to 2 feet or less. .FRIDAY...Winds variable less than 10 knots. Seas to 2 feet or less. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas to 2 feet or less. .SATURDAY...Winds variable less than 10 knots. Seas to 2 feet or less. .SATURDAY NIGHT...Winds variable less than 10 knots. Seas to 2 feet or less. .SUNDAY...Winds variable less than 10 knots. Seas to 2 feet or less. Isolated showers in the afternoon. .MONDAY...Winds variable less than 10 knots. Seas to 3 feet. Isolated showers through the night. $$ PHZ120-100200- Pailolo Channel- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots. Seas to 2 feet or less. Scattered showers, mainly this morning. .TONIGHT...Winds variable less than 10 knots. Seas to 2 feet or less. Isolated showers in the evening. .FRIDAY...Winds variable less than 10 knots, becoming east northeast 7 to 10 knots in the afternoon. Seas to 2 feet or less, then to 3 feet in the afternoon. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas to 3 feet. .SATURDAY...East northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 4 seconds. Isolated showers. .SATURDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 4 seconds. Scattered showers. .SUNDAY...East northeast winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers. .MONDAY...East northeast winds 7 to 10 knots, becoming variable less than 10 knots. Seas 3 to 4 feet. Scattered showers. $$ PHZ121-100200- Alenuihaha Channel- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots. Seas to 3 feet. .TONIGHT...Winds variable less than 10 knots, becoming east 7 to 10 knots after midnight. Seas to 3 feet. Isolated showers. .FRIDAY...East northeast winds 7 to 10 knots. Seas 3 to 4 feet. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds. Isolated showers after midnight. .SATURDAY...East northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds. Isolated showers. .SATURDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds. Isolated showers in the evening, then scattered showers after midnight. .SUNDAY...East northeast winds 15 to 20 knots, easing to 10 to 15 knots after midnight. Seas 3 to 5 feet. Wave Detail: East northeast 4 feet at 5 seconds. Isolated showers through the night. Scattered showers through the day. .MONDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: East northeast 3 feet at 4 seconds and west northwest 3 feet at 16 seconds. Scattered showers. $$ PHZ122-100200- Big Island Windward Waters- 330 AM HST Thu Oct 9 2025 .TODAY...South winds 7 to 10 knots this morning, becoming variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: North 3 feet at 9 seconds. Isolated showers this morning. .TONIGHT...Southeast winds 7 to 10 knots. Seas 3 to 4 feet. Wave Detail: North 3 feet at 9 seconds. Isolated showers in the evening. .FRIDAY...East southeast winds 7 to 10 knots. Seas 3 to 4 feet. Wave Detail: North northeast 3 feet at 9 seconds. Isolated showers in the afternoon. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 4 seconds and east northeast 3 feet at 13 seconds. Isolated showers in the evening, then scattered showers after midnight. .SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East southeast 3 feet at 4 seconds. Scattered showers. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: East northeast 3 feet at 4 seconds, northwest 3 feet at 13 seconds and east 3 feet at 15 seconds. Scattered showers. .SUNDAY...East northeast winds 10 to 15 knots, rising to 15 to 20 knots in the afternoon, then becoming east 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: Northwest 4 feet at 18 seconds and east 3 feet at 13 seconds. Scattered showers. .MONDAY...East southeast winds 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: Northwest 5 feet at 16 seconds and east 3 feet at 12 seconds. Scattered showers. $$ PHZ123-100200- Big Island Leeward Waters- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots, becoming south southeast 7 to 10 knots this afternoon. Seas to 3 feet. .TONIGHT...Southeast winds 7 to 10 knots. Seas 3 to 4 feet. Isolated showers in the evening. .FRIDAY...Northeast winds 7 to 10 knots, veering to south in the afternoon. Seas 3 to 4 feet. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to 5 feet. Wave Detail: East southeast 3 feet at 4 seconds. Isolated showers after midnight. .SATURDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: East 3 feet at 5 seconds. Isolated showers. .SATURDAY NIGHT...East southeast winds 15 to 20 knots, backing to northeast after midnight. Seas 3 to 5 feet. Wave Detail: East 3 feet at 5 seconds. Isolated showers. .SUNDAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: East 3 feet at 4 seconds. Isolated showers through the night. Scattered showers through the day. .MONDAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: Northwest 3 feet at 18 seconds. Scattered showers. $$ PHZ124-100200- Big Island Southeast Waters- 330 AM HST Thu Oct 9 2025 .TODAY...Winds variable less than 10 knots. Seas to 3 feet. Scattered showers, mainly this morning. .TONIGHT...Winds variable less than 10 knots, becoming east 7 to 10 knots after midnight. Seas 3 to 4 feet. Isolated showers. .FRIDAY...East winds 7 to 10 knots. Seas 3 to 4 feet. Isolated showers. .FRIDAY NIGHT...Winds variable less than 10 knots. Seas 4 to 5 feet. Wave Detail: East southeast 4 feet at 5 seconds. Scattered showers. .SATURDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 3 feet at 16 seconds. Scattered showers. .SATURDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 3 feet at 15 seconds. Scattered showers. .SUNDAY...East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East northeast 4 feet at 4 seconds and east 3 feet at 13 seconds. Scattered showers. .MONDAY...East northeast winds 10 to 15 knots. Seas 5 to 6 feet. Wave Detail: East northeast 3 feet at 4 seconds, east 3 feet at 12 seconds and northwest 3 feet at 18 seconds. Scattered showers. $$