FZHW50 PHFO 311336 CWFHFO Coastal Waters Forecast National Weather Service Honolulu HI 336 AM HST Sat Jan 31 2026 Hawaiian coastal waters within 40 nautical miles including the Hawaiian Islands Humpback Whale National Marine Sanctuary. 336 AM HST Sat Jan 31 2026 .Synopsis for Hawaiian coastal waters... Moderate to locally fresh northeasterly winds are prevailing over much of the area this morning, while gentle and variable winds persist around the Big Island near a weakening trough. Trades will continue to weaken today as high pressure north of the state moves eastward. These lighter trade winds will give way to southeast winds tonight as a surface ridge is pushed over the island chain. South to southwest winds will develop on Sunday and will build to fresh to strong levels Sunday night and Monday as another, stronger front approaches. This front is expected to pass down the island chain Monday night and Tuesday.
Maui County Windward Waters- 336 AM HST Sat Jan 31 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...
TODAY East northeast winds 10 to 15 knots. Seas 12 to 14 feet, subsiding to 9 to 12 feet this afternoon. Wave Detail: Northwest 14 feet at 15 seconds and east 3 feet at 5 seconds. Scattered showers this morning. Isolated showers this afternoon.
TONIGHT East northeast winds 10 to 15 knots, veering to east 7 to 10 knots after midnight. Seas 8 to 10 feet, subsiding to 6 to 8 feet after midnight. Wave Detail: Northwest 10 feet at 14 seconds. Hazy. Isolated showers.
SUNDAY East southeast winds 7 to 10 knots, veering to south southwest in the afternoon. Seas 4 to 6 feet. Wave Detail: Northwest 6 feet at 12 seconds. Hazy. Isolated showers.
SUNDAY NIGHT South southwest winds 10 to 15 knots, rising to 15 to 20 knots after midnight. Seas 4 to 6 feet. Wave Detail: Northwest 4 feet at 12 seconds and southeast 3 feet at 7 seconds. Hazy. Isolated showers.
MONDAY Southwest winds 15 to 20 knots, rising to 20 to 25 knots in the afternoon. Seas 5 to 7 feet, building to 7 to 10 feet in the afternoon. Wave Detail: Northwest 8 feet at 11 seconds and west northwest 6 feet at 7 seconds. Hazy. Isolated showers.
MONDAY NIGHT Southwest winds 15 to 20 knots. Seas 9 to 12 feet, building to 11 to 15 feet after midnight. Wave Detail: Northwest 15 feet at 14 seconds and west northwest 6 feet at 7 seconds. Hazy. Scattered showers in the evening. Numerous showers after midnight.
TUESDAY Northwest winds 10 to 15 knots. Seas 15 to 19 feet. Wave Detail: North northwest 19 feet at 15 seconds and northwest 4 feet at 5 seconds. Numerous showers, mainly in the morning.
WEDNESDAY North winds 10 to 15 knots, veering to east. Seas 11 to 15 feet. Wave Detail: North northwest 15 feet at 15 seconds and north 3 feet at 7 seconds. Isolated showers through the night.
Maui County Leeward Waters- 336 AM HST Sat Jan 31 2026
TODAY Northeast winds 15 to 20 knots, becoming east northeast 10 to 15 knots this afternoon. Seas 4 to 6 feet. Wave Detail: Northwest 5 feet at 14 seconds and east northeast 3 feet at 4 seconds. Isolated showers.
TONIGHT Northeast winds 10 to 15 knots, veering to east northeast 7 to 10 knots after midnight. Seas 3 to 4 feet. Wave Detail: Northwest 4 feet at 13 seconds. Hazy. Isolated showers.
SUNDAY Southeast winds 7 to 10 knots, veering to south southwest 10 to 15 knots in the afternoon. Seas to 3 feet. Wave Detail: Northwest 3 feet at 12 seconds. Hazy. Isolated showers.
SUNDAY NIGHT South southwest winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: West northwest 3 feet at 5 seconds. Hazy. Scattered showers.
MONDAY South southwest winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: West 5 feet at 6 seconds and northwest 4 feet at 11 seconds. Scattered showers.
MONDAY NIGHT Southwest winds 15 to 20 knots. Seas 5 to 8 feet. Wave Detail: Northwest 8 feet at 14 seconds and west 5 feet at 6 seconds. Scattered showers.
TUESDAY North northwest winds 7 to 10 knots, becoming 10 to 15 knots. Seas 5 to 8 feet. Wave Detail: Northwest 8 feet at 15 seconds and west northwest 3 feet at 5 seconds. Numerous showers, mainly in the morning.
WEDNESDAY Northeast winds 10 to 15 knots, veering to east southeast 7 to 10 knots after midnight. Seas 5 to 7 feet. Wave Detail: Northwest 7 feet at 15 seconds and north northeast 3 feet at 4 seconds.
Maalaea Bay- 336 AM HST Sat Jan 31 2026
TODAY North winds 15 to 20 knots. Seas to 2 feet or less.
TONIGHT North winds to 15 knots. Seas to 2 feet or less. Hazy.
SUNDAY East northeast winds 7 to 10 knots, backing to northwest 10 to 15 knots in the afternoon. Seas to 2 feet or less. Hazy.
SUNDAY NIGHT Winds variable less than 10 knots, becoming south southwest to 10 knots after midnight. Seas to 2 feet or less. Hazy. Isolated showers.
MONDAY South southwest winds to 15 knots. Seas to 2 feet or less, then to 3 feet in the afternoon. Wave Detail: West 3 feet at 6 seconds. Isolated showers.
MONDAY NIGHT Southwest winds 10 to 15 knots. Seas to 2 feet or less, then to 3 feet after midnight. Wave Detail: West 3 feet at 6 seconds. Scattered showers.
TUESDAY Southwest winds 7 to 10 knots in the morning, becoming variable less than 10 knots, then becoming north to 15 knots in the evening, easing to 7 to 10 knots. Seas to 2 feet or less. Numerous showers, mainly in the morning.
WEDNESDAY North winds to 15 knots, rising to 20 knots in the afternoon and evening, then becoming north northeast after midnight. Seas 3 to 4 feet.
Pailolo Channel- 336 AM HST Sat Jan 31 2026
TODAY East northeast winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 4 seconds and west northwest 3 feet at 15 seconds. Isolated showers.
TONIGHT East northeast winds 10 to 15 knots. Seas to 3 feet. Hazy. Isolated showers.
SUNDAY East northeast winds 7 to 10 knots, veering to southwest 10 to 15 knots in the afternoon. Seas to 2 feet or less. Hazy. Isolated showers.
SUNDAY NIGHT Southwest winds 7 to 10 knots, backing to south southwest 10 to 15 knots after midnight. Seas to 2 feet or less, then to 3 feet after midnight. Hazy. Scattered showers.
MONDAY South southwest winds to 15 knots, rising to 20 knots in the afternoon. Seas 3 to 5 feet. Wave Detail: West southwest 5 feet at 6 seconds. Scattered showers.
MONDAY NIGHT Southwest winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: West 4 feet at 6 seconds and west northwest 4 feet at 14 seconds. Scattered showers in the evening, then numerous showers after midnight.
TUESDAY North northwest winds 7 to 10 knots, becoming 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: West northwest 4 feet at 15 seconds. Numerous showers, mainly in the morning.
WEDNESDAY North northeast winds 10 to 15 knots, becoming east northeast 15 to 20 knots in the afternoon and evening, then becoming east 10 to 15 knots after midnight. Seas 4 to 6 feet. Wave Detail: West northwest 4 feet at 15 seconds.
Alenuihaha Channel- 336 AM HST Sat Jan 31 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...
TODAY East northeast winds 15 to 20 knots, easing to 10 to 15 knots this afternoon. Seas 4 to 6 feet. Wave Detail: West northwest 5 feet at 14 seconds and east northeast 3 feet at 4 seconds. Hazy. Isolated showers.
TONIGHT East northeast winds 10 to 15 knots, backing to northeast 7 to 10 knots after midnight. Seas 3 to 4 feet. Wave Detail: West northwest 4 feet at 13 seconds. Hazy. Isolated showers.
SUNDAY West winds 7 to 10 knots, backing to south southwest 10 to 15 knots in the afternoon. Seas to 3 feet. Wave Detail: West northwest 3 feet at 12 seconds. Hazy. Isolated showers.
SUNDAY NIGHT South southwest winds 7 to 10 knots. Seas to 2 feet or less, then to 3 feet after midnight. Hazy. Scattered showers.
MONDAY Southwest winds 15 to 20 knots. Seas 3 to 4 feet, building to 4 to 6 feet in the afternoon. Wave Detail: West 4 feet at 6 seconds and west northwest 4 feet at 11 seconds. Isolated showers.
MONDAY NIGHT Southwest winds 15 to 20 knots. Seas 4 to 6 feet, building to 5 to 8 feet after midnight. Wave Detail: West northwest 6 feet at 14 seconds and west northwest 4 feet at 6 seconds. Scattered showers.
TUESDAY West southwest winds 10 to 15 knots, veering to north northwest in the evening, veering to north northeast 7 to 10 knots after midnight. Seas 5 to 8 feet. Wave Detail: West northwest 8 feet at 14 seconds and west southwest 3 feet at 5 seconds. Numerous showers, mainly in the morning.
WEDNESDAY Northeast winds 15 to 20 knots, becoming east 10 to 15 knots after midnight. Seas 5 to 7 feet. Wave Detail: Northwest 7 feet at 14 seconds and east 4 feet at 5 seconds. Isolated showers through the night.
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