FZHW50 PHFO 200113 CWFHFO Coastal Waters Forecast National Weather Service Honolulu HI 312 PM HST Fri Dec 19 2025 Hawaiian coastal waters within 40 nautical miles including the Hawaiian Islands Humpback Whale National Marine Sanctuary. 312 PM HST Fri Dec 19 2025 .Synopsis for Hawaiian coastal waters... A weak trough near the Kauai Channel will continue to bring numerous showers and isolated thunderstorms over the western coastal waters tonight. While gusty winds can be expected around any thunderstorms, generally gentle to locally moderate southerly winds will continue east of the trough with light and variable winds to the west. Easterly trade winds will strengthen late this weekend into early next week as a high pressure ridge builds north of the state.
Maui County Windward Waters- 313 PM HST Fri Dec 19 2025
TONIGHT East southeast winds to 10 knots. Seas 6 to 7 feet. Wave Detail: North 5 feet at 11 seconds. Numerous heavy showers this evening. Isolated thunderstorms. Scattered heavy showers after midnight.
SATURDAY East southeast winds 10 to 15 knots. Seas 6 to 7 feet. Wave Detail: North 6 feet at 11 seconds. Isolated showers.
SATURDAY NIGHT East winds 10 to 15 knots. Seas 6 to 7 feet. Wave Detail: North 6 feet at 13 seconds. Isolated showers.
SUNDAY East winds 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: North 5 feet at 12 seconds and east southeast 3 feet at 4 seconds. Isolated showers in the morning. Scattered showers in the afternoon.
SUNDAY NIGHT East winds 15 to 20 knots. Seas 5 to 8 feet. Wave Detail: Northeast 6 feet at 6 seconds and north 5 feet at 11 seconds. Scattered showers.
MONDAY East winds to 20 knots. Seas 7 to 8 feet. Wave Detail: Northeast 6 feet at 6 seconds and north 5 feet at 11 seconds. Scattered showers.
MONDAY NIGHT East northeast winds 20 to 25 knots. Seas 7 to 8 feet. Wave Detail: Northeast 6 feet at 6 seconds and north 5 feet at 10 seconds. Scattered showers.
TUESDAY East winds 20 to 25 knots. Seas 7 to 10 feet. Wave Detail: East northeast 7 feet at 7 seconds and north northeast 6 feet at 9 seconds. Scattered showers through the night, then isolated showers through the day.
WEDNESDAY East winds to 20 knots. Seas 7 to 9 feet. Wave Detail: East southeast 5 feet at 5 seconds and north northeast 5 feet at 13 seconds. Isolated showers. Winds and seas higher in and near tstms.
Maui County Leeward Waters- 313 PM HST Fri Dec 19 2025
TONIGHT East southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: North 3 feet at 11 seconds. Numerous heavy showers this evening. Isolated thunderstorms. Scattered heavy showers after midnight.
SATURDAY South southeast winds 7 to 10 knots, veering to west southwest in the afternoon. Seas 3 to 4 feet. Wave Detail: North 4 feet at 11 seconds. Scattered showers, mainly in the morning.
SATURDAY NIGHT Northeast winds 7 to 10 knots, veering to east northeast 10 to 15 knots after midnight. Seas 3 to 5 feet. Wave Detail: North 4 feet at 12 seconds and southeast 3 feet at 5 seconds. Isolated showers in the evening.
SUNDAY East northeast winds 7 to 10 knots. Seas 3 to 5 feet. Wave Detail: East southeast 3 feet at 6 seconds and north 3 feet at 11 seconds.
SUNDAY NIGHT East northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: East southeast 4 feet at 6 seconds and north 3 feet at 11 seconds.
MONDAY East northeast winds 15 to 20 knots, easing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet. Wave Detail: East 4 feet at 7 seconds and north 3 feet at 11 seconds. Isolated showers in the afternoon.
MONDAY NIGHT East northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 6 seconds and north 3 feet at 10 seconds. Isolated showers.
TUESDAY East northeast winds 15 to 20 knots, easing to 10 to 15 knots after midnight. Seas 4 to 6 feet. Wave Detail: East 5 feet at 6 seconds and north 3 feet at 9 seconds. Isolated showers in the morning.
WEDNESDAY East northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: East southeast 4 feet at 6 seconds. Winds and seas higher in and near tstms.
Maalaea Bay- 313 PM HST Fri Dec 19 2025
TONIGHT Winds variable less than 10 knots. Seas to 2 feet or less. Numerous heavy showers with isolated thunderstorms this evening, then scattered showers after midnight.
SATURDAY Winds variable less than 10 knots. Seas to 2 feet or less. Isolated showers.
SATURDAY NIGHT North winds to 15 knots, rising to 20 knots after midnight. Seas to 2 feet or less.
SUNDAY North winds to 20 knots, rising to 25 knots in the afternoon. Seas to 2 feet or less.
SUNDAY NIGHT North winds to 25 knots. Seas to 2 feet or less. Wave Detail: North northeast 2 feet at 3 seconds.
MONDAY North winds to 25 knots. Seas to 2 feet or less. Wave Detail: North northeast 2 feet at 3 seconds.
MONDAY NIGHT North winds to 25 knots. Seas to 2 feet or less. Wave Detail: North northeast 2 feet at 3 seconds.
TUESDAY North winds to 25 knots. Seas 3 to 4 feet. Wave Detail: North northeast 3 feet at 3 seconds.
WEDNESDAY North winds to 25 knots. Seas 3 to 4 feet. Wave Detail: North northeast 3 feet at 3 seconds. Winds and seas higher in and near tstms.
Pailolo Channel- 313 PM HST Fri Dec 19 2025
TONIGHT East winds 7 to 10 knots. Seas to 3 feet. Numerous heavy showers this evening. Isolated thunderstorms. Scattered heavy showers after midnight.
SATURDAY Winds variable less than 10 knots, becoming north 7 to 10 knots in the afternoon. Seas 3 to 4 feet. Scattered showers, mainly in the morning.
SATURDAY NIGHT East northeast winds 10 to 15 knots, rising to 15 to 20 knots after midnight. Seas 3 to 5 feet. Isolated showers in the evening.
SUNDAY East northeast winds 15 to 20 knots, rising to 20 to 25 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: East 3 feet at 4 seconds.
SUNDAY NIGHT East northeast winds 20 to 25 knots. Seas 3 to 5 feet. Wave Detail: East northeast 4 feet at 6 seconds. Isolated showers after midnight.
MONDAY East northeast winds 20 to 25 knots. Seas 3 to 5 feet. Wave Detail: East northeast 4 feet at 6 seconds. Scattered showers.
MONDAY NIGHT East northeast winds 20 to 25 knots. Seas 4 to 6 feet. Wave Detail: East northeast 4 feet at 6 seconds. Scattered showers.
TUESDAY East northeast winds 20 to 25 knots. Seas 4 to 6 feet. Wave Detail: East northeast 5 feet at 8 seconds. Isolated showers.
WEDNESDAY East northeast winds 20 to 25 knots. Seas 4 to 6 feet. Wave Detail: East northeast 3 feet at 5 seconds. Winds and seas higher in and near tstms.
Alenuihaha Channel- 313 PM HST Fri Dec 19 2025
TONIGHT East winds 10 to 15 knots. Seas 3 to 5 feet. Scattered heavy showers with isolated thunderstorms.
SATURDAY East winds 10 to 15 knots, backing to east northeast 7 to 10 knots in the afternoon. Seas 3 to 5 feet. Isolated showers in the morning.
SATURDAY NIGHT East northeast winds 10 to 15 knots, rising to 15 to 20 knots after midnight. Seas 3 to 5 feet. Wave Detail: East 4 feet at 4 seconds.
SUNDAY East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East 4 feet at 5 seconds.
SUNDAY NIGHT East northeast winds 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: East northeast 6 feet at 5 seconds. Isolated showers in the evening. Scattered showers after midnight.
MONDAY East northeast winds 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: East northeast 6 feet at 6 seconds. Scattered showers.
MONDAY NIGHT East northeast winds 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: East northeast 6 feet at 6 seconds. Numerous showers in the evening. Isolated showers after midnight.
TUESDAY East northeast winds 20 to 25 knots. Gusts up to 35 knots. Seas 5 to 8 feet. Wave Detail: East northeast 8 feet at 6 seconds and north northeast 3 feet at 9 seconds. Scattered showers through the night. Isolated showers through the day.
WEDNESDAY East northeast winds 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at 6 seconds and northeast 3 feet at 10 seconds. Isolated showers in the morning. Winds and seas higher in and near tstms.
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