FZHW50 PHFO 121330 CWFHFO Coastal Waters Forecast National Weather Service Honolulu HI 330 AM HST Sun Apr 12 2026 Hawaiian coastal waters within 40 nautical miles including the Hawaiian Islands Humpback Whale National Marine Sanctuary. 330 AM HST Sun Apr 12 2026 .Synopsis for Hawaiian coastal waters... A trough remains draped over the central coastal waters, extending from a low pressure system far north-northwest of the area. East of the trough, moderate to fresh southeasterly winds will prevail, while winds west of trough will be light and variable. Gentle to moderate trades return for the latter half of the week.
Maui County Windward Waters- 330 AM HST Sun Apr 12 2026
TODAY East southeast winds 10 to 15 knots, backing to east northeast this afternoon. Seas 5 to 6 feet. Wave Detail: North northwest 5 feet at 12 seconds and southeast 3 feet at 5 seconds. Numerous showers with isolated thunderstorms.
TONIGHT East winds 10 to 15 knots. Seas 5 to 6 feet. Wave Detail: Northwest 5 feet at 11 seconds. Showers with isolated thunderstorms.
MONDAY Southeast winds 10 to 15 knots. Seas 5 to 6 feet. Wave Detail: Northwest 4 feet at 10 seconds. Heavy showers with isolated thunderstorms in the morning.
MONDAY NIGHT Southeast winds 7 to 10 knots. Seas 4 to 5 feet. Wave Detail: Northwest 4 feet at 10 seconds.
TUESDAY East southeast winds 7 to 10 knots. Seas 4 to 5 feet. Wave Detail: Northwest 3 feet at 10 seconds.
TUESDAY NIGHT East southeast winds 10 to 15 knots. Seas to 4 feet. Wave Detail: Northwest 3 feet at 11 seconds. Isolated showers.
WEDNESDAY East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Northwest 3 feet at 10 seconds. Isolated showers in the morning, then scattered showers.
THURSDAY East winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: East 3 feet at 5 seconds. Scattered showers. Winds and seas higher in and near tstms.
Maui County Leeward Waters- 330 AM HST Sun Apr 12 2026
TODAY South southeast winds 10 to 15 knots, veering to north northwest this afternoon. Seas 3 to 5 feet. Numerous showers with isolated thunderstorms.
TONIGHT East northeast winds 10 to 15 knots. Seas 3 to 4 feet. Showers with isolated thunderstorms.
MONDAY South winds to 10 knots. Seas 3 to 4 feet. Showers with isolated thunderstorms in the morning.
MONDAY NIGHT Winds variable less than 10 knots. Seas 3 to 5 feet. Wave Detail: South 3 feet at 13 seconds.
TUESDAY Winds variable less than 10 knots. Seas 3 to 5 feet. Wave Detail: South 3 feet at 13 seconds.
TUESDAY NIGHT Winds variable less than 10 knots, becoming northeast 7 to 10 knots after midnight. Seas 4 to 5 feet. Wave Detail: South 4 feet at 12 seconds. Isolated showers.
WEDNESDAY East northeast winds 7 to 10 knots. Seas 3 to 5 feet. Wave Detail: South 3 feet at 12 seconds. Isolated showers.
THURSDAY East winds 7 to 10 knots in the morning, becoming variable less than 10 knots, then becoming east northeast 7 to 10 knots after midnight. Seas 3 to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds and south 3 feet at 13 seconds. Isolated showers. Winds and seas higher in and near tstms.
Maalaea Bay- 330 AM HST Sun Apr 12 2026
TODAY South winds 7 to 10 knots, veering to northwest this afternoon. Seas to 2 feet or less. Numerous showers.
TONIGHT Northeast winds 10 to 15 knots, veering to east southeast 7 to 10 knots after midnight. Seas to 2 feet or less. Numerous showers in the evening.
MONDAY Winds variable less than 10 knots, becoming southwest 7 to 10 knots in the afternoon. Seas to 2 feet or less.
MONDAY NIGHT Winds variable less than 10 knots. Seas to 2 feet or less.
TUESDAY Winds variable less than 10 knots, becoming north to 15 knots in the afternoon. Seas to 2 feet or less, then to 3 feet in the afternoon.
TUESDAY NIGHT North winds to 15 knots. Seas to 3 feet. Isolated showers.
WEDNESDAY North winds to 15 knots, rising to 20 knots in the evening, easing to 15 knots after midnight. Seas 3 to 4 feet. Isolated showers in the morning.
THURSDAY North winds to 15 knots. Seas to 3 feet.
Pailolo Channel- 330 AM HST Sun Apr 12 2026
TODAY Southeast winds 7 to 10 knots, backing to north northwest 10 to 15 knots this afternoon. Seas to 3 feet. Numerous showers with isolated thunderstorms.
TONIGHT Northeast winds 10 to 15 knots, veering to east 7 to 10 knots after midnight. Seas to 3 feet. Numerous showers with isolated thunderstorms in the evening, then scattered showers after midnight.
MONDAY South winds 7 to 10 knots. Seas to 3 feet. Scattered showers in the morning.
MONDAY NIGHT Winds variable less than 10 knots. Seas to 3 feet.
TUESDAY Winds variable less than 10 knots, becoming north northeast 10 to 15 knots in the afternoon. Seas 3 to 4 feet.
TUESDAY NIGHT East northeast winds 10 to 15 knots. Seas 3 to 4 feet. Isolated showers.
WEDNESDAY East northeast winds 10 to 15 knots, rising to 15 to 20 knots in the evening, easing to 10 to 15 knots after midnight. Seas 3 to 4 feet. Isolated showers in the morning, then scattered showers.
THURSDAY East northeast winds 10 to 15 knots. Seas to 3 feet. Scattered showers. Winds and seas higher in and near tstms.
Alenuihaha Channel- 330 AM HST Sun Apr 12 2026
TODAY East southeast winds 10 to 15 knots, backing to north northeast this afternoon. Seas 3 to 4 feet. Scattered showers this morning, then numerous showers this afternoon.
TONIGHT Northeast winds 10 to 15 knots, veering to southeast after midnight. Seas 3 to 4 feet. Numerous showers in the evening.
MONDAY South southeast winds 10 to 15 knots. Seas 3 to 4 feet.
MONDAY NIGHT East northeast winds 7 to 10 knots. Seas 3 to 5 feet. Wave Detail: South 3 feet at 13 seconds.
TUESDAY East northeast winds 7 to 10 knots, becoming 10 to 15 knots in the afternoon. Seas 3 to 5 feet. Wave Detail: South 4 feet at 13 seconds.
TUESDAY NIGHT East winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: South 4 feet at 12 seconds. Isolated showers.
WEDNESDAY East northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: East 4 feet at 4 seconds and south 3 feet at 12 seconds. Isolated showers in the morning, then scattered showers in the afternoon. Isolated showers through the day.
THURSDAY East northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: East 3 feet at 4 seconds and south 3 feet at 13 seconds. Isolated showers in the morning. Scattered showers in the afternoon, then isolated showers through the day.
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