975
FZHW50 PHFO 191304
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
303 AM HST Mon May 19 2025

Hawaiian coastal waters within 40 nautical miles including the
Hawaiian Islands Humpback Whale National Marine Sanctuary.

PHZ100-200200-
303 AM HST Mon May 19 2025

.Synopsis for Hawaiian coastal waters...
 High pressure will remain anchored north or northeast of the
state through much of this week. Moderate to locally fresh trade
winds will increase slightly Tuesday through the remainder of the
week to fresh to locally strong.

$$

PHZ110-200200-
Kauai Northwest Waters-
304 AM HST Mon May 19 2025

.TODAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 8 seconds. Isolated showers.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 8 seconds. Isolated showers in the
evening. Scattered showers after midnight.
.TUESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers in the
morning.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots. Seas to
5 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers.
.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers
in the morning. Isolated showers in the afternoon.
.WEDNESDAY NIGHT...East winds to 20 knots. Seas to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Scattered showers.
.THURSDAY...East winds to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 6 feet at 7 seconds. Isolated showers through the
night. Scattered showers through the day.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 6 feet at 7 seconds. Scattered showers in the
morning. Isolated showers in the afternoon, then scattered
showers through the day.

$$

PHZ111-200200-
Kauai Windward Waters-
304 AM HST Mon May 19 2025

.TODAY...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East 5 feet at 8 seconds. Scattered showers, mainly this morning.
.TONIGHT...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East 5 feet at 8 seconds. Scattered showers.
.TUESDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 8 seconds. Isolated showers.
.TUESDAY NIGHT...East northeast winds to 15 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers.
.WEDNESDAY...East northeast winds to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 7 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas to 5 feet.
Wave Detail: East 5 feet at 7 seconds. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 6 feet at 7 seconds. Scattered showers.
.FRIDAY...East winds to 15 knots, becoming east northeast in the
afternoon, easing to 15 knots. Seas to 6 feet. Wave Detail: East
6 feet at 7 seconds. Scattered showers in the morning, then
isolated showers in the afternoon. Scattered showers through the
day.

$$

PHZ112-200200-
Kauai Leeward Waters-
304 AM HST Mon May 19 2025

.TODAY...East winds to 15 knots. Seas 3 to 4 feet. Wave Detail:
East 4 feet at 6 seconds. Hazy. Isolated showers.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 6 seconds. Hazy in the evening. Scattered
showers in the evening. Isolated showers after midnight.
.TUESDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 6 seconds. Isolated showers in the
afternoon.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots. In the
Kaulakahi Channel, east northeast winds 10 to 15 knots, becoming
7 to 10 knots after midnight. Seas 5 to 6 feet. Wave Detail: East
6 feet at 6 seconds. Isolated showers after midnight.
.WEDNESDAY...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 to 5 feet. Wave Detail:
East 5 feet at 6 seconds. Scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 6 feet at 7 seconds. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East 6 feet at 7 seconds. Isolated showers through the
night. Scattered showers through the day.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 6 feet at 7 seconds. Isolated showers.

$$

PHZ113-200200-
Kauai Channel-
304 AM HST Mon May 19 2025

.TODAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East 5 feet at 6 seconds. Hazy. Isolated showers.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 6 seconds. Isolated showers.
.TUESDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 6 seconds. Isolated showers in the
morning.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots. Seas to
5 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers.
.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers
in the afternoon.
.WEDNESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 5 to
6 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers
in the evening, then scattered showers after midnight.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 5 to
6 feet. Wave Detail: East 6 feet at 7 seconds. Isolated showers
in the morning, then scattered showers.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East northeast 6 feet at 6 seconds. Isolated
showers.

$$

PHZ114-200200-
Oahu Windward Waters-
304 AM HST Mon May 19 2025

.TODAY...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East 5 feet at 8 seconds. Isolated showers.
.TONIGHT...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East 5 feet at 8 seconds. Scattered showers, mainly in the
evening.
.TUESDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 8 seconds.
.TUESDAY NIGHT...East northeast winds to 15 knots. Seas to
5 feet. Wave Detail: East 5 feet at 7 seconds. Isolated showers
in the evening, then scattered showers after midnight.
.WEDNESDAY...East northeast winds to 15 knots. Seas to 5 feet.
Wave Detail: East 5 feet at 7 seconds.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas to 5 feet.
Wave Detail: East 5 feet at 7 seconds. Isolated showers in the
evening, then scattered showers after midnight.
.THURSDAY...East winds to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 6 feet at 7 seconds. Isolated showers through the
night. Scattered showers through the day.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 6 feet at 7 seconds. Isolated showers, then
scattered showers after midnight.

$$

PHZ115-200200-
Oahu Leeward Waters-
304 AM HST Mon May 19 2025

.TODAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 6 seconds. Hazy. Isolated showers.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: East 4 feet at 6 seconds. Scattered showers.
.TUESDAY...East northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wave Detail: East southeast 4 feet at 6 seconds.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East southeast 5 feet at 6 seconds. Isolated
showers after midnight.
.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East southeast 5 feet at 6 seconds. Isolated
showers in the afternoon.
.WEDNESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East southeast 5 feet at 6 seconds.
Scattered showers.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 7 seconds. Isolated showers.
.FRIDAY...East northeast winds to 15 knots, becoming 15 to
20 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at
6 seconds. Isolated showers after midnight.

$$

PHZ116-200200-
Kaiwi Channel-
304 AM HST Mon May 19 2025

.TODAY...East northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wave Detail: East 5 feet at 6 seconds. Isolated showers this
afternoon.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 5 seconds. Isolated showers.
.TUESDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 6 seconds.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers
after midnight.
.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 5 seconds.
.WEDNESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 6 feet at 6 seconds. Isolated showers
after midnight.
.FRIDAY...East northeast winds to 20 knots, easing to 15 knots
after midnight. Seas 4 to 6 feet. Wave Detail: East 6 feet at
6 seconds.

$$

PHZ117-200200-
Maui County Windward Waters-
304 AM HST Mon May 19 2025

.TODAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 8 seconds. Scattered showers, mainly this
morning.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 8 seconds. Scattered showers.
.TUESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 8 seconds. Scattered showers.
.TUESDAY NIGHT...East winds to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Scattered showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 6 seconds. Scattered showers.
.THURSDAY...East winds to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 6 feet at 7 seconds. Scattered showers.
.FRIDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 6 feet at 7 seconds. Scattered showers in the
morning. Isolated showers in the afternoon, then scattered
showers through the day.

$$

PHZ118-200200-
Maui County Leeward Waters-
304 AM HST Mon May 19 2025

.TODAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers this
afternoon.
.TONIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East 4 feet at 6 seconds. Isolated showers in the
evening.
.TUESDAY...East northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wave Detail: East southeast 4 feet at 6 seconds.
.TUESDAY NIGHT...East northeast winds 10 to 15 knots, backing to
northeast 7 to 10 knots after midnight. Seas 3 to 5 feet. Wave
Detail: East southeast 5 feet at 7 seconds.
.WEDNESDAY...East northeast winds 7 to 10 knots, becoming 10 to
15 knots in the afternoon. Seas 3 to 5 feet. Wave Detail: East
southeast 4 feet at 6 seconds.
.WEDNESDAY NIGHT...East northeast winds 10 to 15 knots. Seas 4 to
6 feet. Wave Detail: East southeast 5 feet at 7 seconds.
Scattered showers in the evening. Isolated showers after
midnight.
.THURSDAY...East northeast winds 10 to 15 knots. Seas 4 to
6 feet. Wave Detail: East southeast 5 feet at 7 seconds. Isolated
showers in the evening.
.FRIDAY...East northeast winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: East southeast 5 feet at 6 seconds.

$$

PHZ119-200200-
Maalaea Bay-
304 AM HST Mon May 19 2025

.TODAY...North winds 15 to 20 knots. Seas to 2 feet or less.
Isolated showers this afternoon.
.TONIGHT...North winds 15 to 20 knots. Seas to 2 feet or less.
.TUESDAY...North winds 20 to 25 knots. Seas to 2 feet or less.
.TUESDAY NIGHT...North northeast winds to 25 knots. Seas to
2 feet or less.
.WEDNESDAY...North northeast winds to 25 knots. Seas to 2 feet or
less.
.WEDNESDAY NIGHT...North northeast winds to 25 knots. Seas to
2 feet or less.
.THURSDAY...North northeast winds to 25 knots. Seas to 2 feet or
less.
.FRIDAY...North northeast winds to 25 knots. Seas to 2 feet or
less.

$$

PHZ120-200200-
Pailolo Channel-
304 AM HST Mon May 19 2025

.TODAY...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: East 3 feet at 4 seconds. Isolated showers this
afternoon.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: East 4 feet at 4 seconds. Scattered showers in the
evening.
.TUESDAY...East northeast winds 20 to 25 knots. Seas 3 to 5 feet.
Wave Detail: East 4 feet at 5 seconds.
.TUESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds. Isolated showers
in the evening.
.WEDNESDAY...East northeast winds 20 to 25 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds.
.WEDNESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds.
.THURSDAY...East northeast winds 20 to 25 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 5 seconds.
.FRIDAY...East northeast winds 20 to 25 knots. Seas 3 to 5 feet.
Wave Detail: East 5 feet at 5 seconds.

$$

PHZ121-200200-
Alenuihaha Channel-
304 AM HST Mon May 19 2025

.TODAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 6 seconds. Hazy. Scattered showers
this afternoon.
.TONIGHT...East northeast winds to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 6 feet at 6 seconds. Isolated showers.
.TUESDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet.
Wave Detail: East 7 feet at 6 seconds. Isolated showers in the
afternoon.
.TUESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to
7 feet. Wave Detail: East 7 feet at 6 seconds. Isolated showers.
.WEDNESDAY...East northeast winds 20 to 25 knots. Seas 5 to
7 feet. Wave Detail: East 6 feet at 6 seconds. Isolated showers
in the afternoon.
.WEDNESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to
7 feet. Wave Detail: East 7 feet at 6 seconds. Scattered showers.
.THURSDAY...East northeast winds 20 to 25 knots. Seas 5 to
8 feet. Wave Detail: East northeast 8 feet at 6 seconds. Isolated
showers.
.FRIDAY...East northeast winds 20 to 25 knots. Seas 4 to 6 feet.
Wave Detail: East 6 feet at 6 seconds. Isolated showers.
Scattered showers after midnight.

$$

PHZ122-200200-
Big Island Windward Waters-
304 AM HST Mon May 19 2025

.TODAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 8 seconds. Scattered showers.
.TONIGHT...East winds 10 to 15 knots. Seas to 4 feet. Wave
Detail: East 4 feet at 8 seconds. Scattered showers in the
evening.
.TUESDAY...East winds 10 to 15 knots, rising to 15 to 20 knots in
the afternoon. Seas to 4 feet. Wave Detail: East 4 feet at
8 seconds. Isolated showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas to 4 feet. Wave
Detail: East 4 feet at 8 seconds. Isolated showers in the
evening. Scattered showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 8 seconds. Isolated showers in the
morning. Scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 8 seconds. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 8 seconds and south 3 feet at 18 seconds.
Isolated showers through the night, then scattered showers in the
evening. Isolated showers after midnight.
.FRIDAY...East winds 15 to 20 knots, easing to 10 to 15 knots
after midnight. Seas 4 to 6 feet. Wave Detail: East 4 feet at
8 seconds and south 3 feet at 16 seconds. Isolated showers
through the night, then scattered showers through the day.

$$

PHZ123-200200-
Big Island Leeward Waters-
304 AM HST Mon May 19 2025

.TODAY...West of the Big Island, north northwest winds 7 to
10 knots, backing to west this afternoon. Near South Point, east
winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: East
southeast 4 feet at 5 seconds. Hazy. Isolated showers this
afternoon.
.TONIGHT...West of the Big Island, west southwest winds 10 to
15 knots, veering to north northwest 7 to 10 knots after
midnight. Near South Point, east winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East northeast 4 feet at 5 seconds. Hazy.
Isolated showers.
.TUESDAY...West of the Big Island, north northwest winds 10 to
15 knots, backing to west southwest in the afternoon. Near South
Point, east winds 20 to 25 knots. Seas 3 to 5 feet. Wave Detail:
East northeast 5 feet at 6 seconds. Hazy. Scattered showers in
the morning. Isolated showers in the afternoon.
.TUESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...East 20 to 25 knots near South Point. Seas 4 to
6 feet. Wave Detail: East northeast 6 feet at 6 seconds. Hazy.
Isolated showers in the evening. Scattered showers after
midnight.
.WEDNESDAY...Winds variable less than 10 knots west of the Big
Island...East 20 to 25 knots near South Point. Seas 3 to 5 feet.
Wave Detail: East northeast 5 feet at 5 seconds. Hazy. Scattered
showers.
.WEDNESDAY NIGHT...West of the Big Island, winds variable less
than 10 knots, becoming north northwest 7 to 10 knots after
midnight. Near South Point, east winds 20 to 25 knots. Seas 4 to
6 feet. Wave Detail: East 6 feet at 6 seconds. Hazy. Scattered
showers.
.THURSDAY...West of the Big Island, winds variable less than
10 knots, becoming northwest 7 to 10 knots in the afternoon,
backing to south in the evening, veering to north northwest after
midnight. Near South Point, east winds 20 to 25 knots, easing to
15 to 20 knots in the afternoon, rising to 20 to 25 knots. Seas
4 to 6 feet. Wave Detail: East 6 feet at 6 seconds. Isolated
showers.
.FRIDAY...West of the Big Island, south winds 7 to 10 knots,
veering to northwest to 10 knots in the afternoon, backing to
south southeast 7 to 10 knots in the evening, backing to north to
10 knots after midnight. Near South Point, east winds 20 to
25 knots. Seas 4 to 6 feet. Wave Detail: East 6 feet at
6 seconds. Isolated showers. Scattered showers after midnight.

$$

PHZ124-200200-
Big Island Southeast Waters-
304 AM HST Mon May 19 2025

.TODAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 8 seconds. Hazy. Scattered showers
this morning. Isolated showers this afternoon.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 8 seconds. Scattered showers in the
evening. Hazy.
.TUESDAY...East northeast winds 20 to 25 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 8 seconds. Hazy.
.TUESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 6 seconds. Hazy. Isolated
showers in the evening. Scattered showers after midnight.
.WEDNESDAY...East northeast winds 20 to 25 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 5 seconds. Hazy. Isolated
showers in the afternoon.
.WEDNESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 5 seconds. Hazy. Scattered
showers.
.THURSDAY...East northeast winds 20 to 25 knots. Seas 5 to
7 feet. Wave Detail: East 6 feet at 6 seconds and south southwest
3 feet at 18 seconds. Isolated showers.
.FRIDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet.
Wave Detail: East 6 feet at 6 seconds and south southwest 3 feet
at 17 seconds. Isolated showers through the day.

$$