FZHW50 PHFO 230109 CWFHFO Coastal Waters Forecast National Weather Service Honolulu HI 309 PM HST Mon Dec 22 2025 Hawaiian coastal waters within 40 nautical miles including the Hawaiian Islands Humpback Whale National Marine Sanctuary. 309 PM HST Mon Dec 22 2025 .Synopsis for Hawaiian coastal waters... Easterly trade winds will continue to strengthen and will be fresh to strong tonight and Tuesday as robust high pressure moves far N of the islands and deep low pressure drifts far to the northwest. The high will weaken and cause winds to ease Wednesday and Thursday. Winds are expected to veer southeasterly on Friday, then decrease and shift southerly during the weekend as a surface ridge is pushed southward toward Kauai.
Maui County Windward Waters- 309 PM HST Mon Dec 22 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...
TONIGHT East winds 15 to 20 knots, rising to 20 to 25 knots after midnight. Seas 6 to 7 feet, building to 6 to 9 feet after midnight. Wave Detail: North 4 feet at 10 seconds and east 3 feet at 7 seconds. Occasional showers.
TUESDAY East winds 20 to 25 knots. Seas 8 to 9 feet. Wave Detail: North 4 feet at 10 seconds and east 3 feet at 7 seconds. Occasional showers, mainly in the morning.
TUESDAY NIGHT East winds 20 to 25 knots. Seas 8 to 9 feet. Wave Detail: East 3 feet at 7 seconds and north northeast 3 feet at 9 seconds. Isolated showers in the evening.
WEDNESDAY East winds to 20 knots. Seas 7 to 9 feet. Wave Detail: East 3 feet at 7 seconds and north northeast 3 feet at 11 seconds.
WEDNESDAY NIGHT East winds 15 to 20 knots. Seas 7 to 8 feet. Wave Detail: North northeast 5 feet at 13 seconds and east 3 feet at 7 seconds.
THURSDAY East winds 15 to 20 knots. Seas to 7 feet. Wave Detail: North northeast 5 feet at 12 seconds and east 3 feet at 7 seconds.
THURSDAY NIGHT East southeast winds 15 to 20 knots. Seas to 7 feet. Wave Detail: North northeast 6 feet at 12 seconds and east 3 feet at 6 seconds. Isolated showers.
FRIDAY East southeast winds 15 to 20 knots. Seas 6 to 8 feet. Wave Detail: North northeast 7 feet at 12 seconds. Isolated showers. Scattered showers after midnight.
SATURDAY East southeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: North northeast 4 feet at 10 seconds. Isolated showers.
Maui County Leeward Waters- 309 PM HST Mon Dec 22 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...
TONIGHT East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: North 3 feet at 10 seconds. Isolated showers.
TUESDAY East winds 20 to 25 knots. Seas 4 to 6 feet. Isolated showers in the morning.
TUESDAY NIGHT East northeast winds 20 to 25 knots. Seas 4 to 6 feet.
WEDNESDAY East northeast winds 10 to 15 knots. Seas 4 to 6 feet.
WEDNESDAY NIGHT East northeast winds 10 to 15 knots. Seas 3 to 5 feet.
THURSDAY East winds 10 to 15 knots. Seas 3 to 5 feet.
THURSDAY NIGHT East winds 10 to 15 knots. Seas 3 to 5 feet.
FRIDAY East winds 10 to 15 knots, backing to east northeast 7 to 10 knots after midnight. Seas 3 to 5 feet. Wave Detail: North 3 feet at 12 seconds.
SATURDAY East northeast winds 7 to 10 knots, veering to east southeast 10 to 15 knots. Seas 3 to 5 feet.
Maalaea Bay- 309 PM HST Mon Dec 22 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...
TONIGHT North winds 20 to 25 knots. Seas to 2 feet or less.
TUESDAY North winds 25 to 30 knots. Seas to 2 feet or less.
TUESDAY NIGHT North winds to 25 knots. Seas to 2 feet or less.
WEDNESDAY North winds to 25 knots. Seas to 2 feet or less.
WEDNESDAY NIGHT North winds to 25 knots, easing to 20 knots after midnight. Seas to 2 feet or less.
THURSDAY North winds to 20 knots, becoming north northeast in the afternoon. Seas to 2 feet or less.
THURSDAY NIGHT North winds to 25 knots, easing to 20 knots after midnight. Seas to 2 feet or less.
FRIDAY North winds to 20 knots. Seas to 2 feet or less.
SATURDAY North winds to 15 knots, becoming north northeast in the afternoon, then becoming north. Seas to 2 feet or less.
Pailolo Channel- 309 PM HST Mon Dec 22 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...
TONIGHT East northeast winds 20 to 25 knots. Seas 5 to 7 feet. Occasional showers.
TUESDAY East northeast winds 25 to 30 knots. Seas 4 to 6 feet. Scattered showers in the morning. Isolated showers in the afternoon.
TUESDAY NIGHT East northeast winds 20 to 25 knots. Seas 5 to 7 feet.
WEDNESDAY East northeast winds 20 to 25 knots. Seas 4 to 6 feet.
WEDNESDAY NIGHT East northeast winds 20 to 25 knots, becoming east 15 to 20 knots after midnight. Seas 4 to 6 feet.
THURSDAY East winds 15 to 20 knots, becoming east northeast 20 to 25 knots in the afternoon. Seas 3 to 5 feet.
THURSDAY NIGHT East winds 20 to 25 knots, easing to 15 to 20 knots after midnight. Seas 4 to 6 feet.
FRIDAY East northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: Northeast 3 feet at 12 seconds. Isolated showers.
SATURDAY East southeast winds 10 to 15 knots, becoming southeast 15 to 20 knots in the afternoon, then becoming east 10 to 15 knots in the evening, veering to south after midnight. Seas 3 to 5 feet. Isolated showers.
Alenuihaha Channel- 309 PM HST Mon Dec 22 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...
TONIGHT East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Isolated showers this evening. Occasional showers after midnight.
TUESDAY East northeast winds 25 to 30 knots. Seas 6 to 8 feet. Scattered showers in the morning. Isolated showers in the afternoon.
TUESDAY NIGHT East northeast winds 25 to 30 knots. Seas 6 to 8 feet. Wave Detail: East 3 feet at 7 seconds. Isolated showers in the evening.
WEDNESDAY East northeast winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: East 3 feet at 7 seconds.
WEDNESDAY NIGHT East northeast winds 20 to 25 knots, easing to 15 to 20 knots after midnight. Seas 5 to 7 feet. Wave Detail: Northeast 3 feet at 12 seconds.
THURSDAY East northeast winds 15 to 20 knots, rising to 20 to 25 knots in the afternoon. Seas 5 to 7 feet. Wave Detail: North northeast 3 feet at 12 seconds.
THURSDAY NIGHT East winds 20 to 25 knots, easing to 15 to 20 knots after midnight. Seas 5 to 7 feet. Wave Detail: North northeast 4 feet at 12 seconds.
FRIDAY East winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: North northeast 4 feet at 12 seconds. Isolated showers.
SATURDAY East winds 15 to 20 knots, easing to 10 to 15 knots after midnight. Seas 4 to 6 feet. Wave Detail: North northeast 3 feet at 10 seconds.
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