FZHW50 PHFO 220104 CWFHFO Coastal Waters Forecast National Weather Service Honolulu HI 303 PM HST Sun Dec 21 2025 Hawaiian coastal waters within 40 nautical miles including the Hawaiian Islands Humpback Whale National Marine Sanctuary. 303 PM HST Sun Dec 21 2025 .Synopsis for Hawaiian coastal waters... High pressure builds into the islands today, and strengthening easterly trades are expected over the next few days. Trades then ease beginning Wednesday as low pressure approaches from the west.
Maui County Windward Waters- 304 PM HST Sun Dec 21 2025
TONIGHT East winds 15 to 20 knots. Seas 4 to 5 feet. Wave Detail: North 5 feet at 11 seconds. Isolated showers this evening. Scattered showers after midnight.
MONDAY East southeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: North 5 feet at 11 seconds and east southeast 3 feet at 7 seconds. Scattered showers.
MONDAY NIGHT East winds 20 to 25 knots. Seas to 5 feet. Wave Detail: North 4 feet at 10 seconds and east southeast 3 feet at 7 seconds. Scattered showers.
TUESDAY East winds 20 to 25 knots. Seas 4 to 5 feet. Wave Detail: North 4 feet at 10 seconds and east 3 feet at 7 seconds. Scattered showers, mainly in the morning.
TUESDAY NIGHT East winds 20 to 25 knots. Seas to 4 feet. Wave Detail: East 3 feet at 7 seconds and north northeast 3 feet at 9 seconds. Isolated showers.
WEDNESDAY East winds to 20 knots. Seas to 4 feet. Wave Detail: East 3 feet at 7 seconds and north northeast 3 feet at 11 seconds. Isolated showers.
WEDNESDAY NIGHT East winds to 20 knots, easing to 15 knots after midnight. Seas 4 to 6 feet. Wave Detail: North northeast 5 feet at 13 seconds and east 3 feet at 7 seconds. Isolated showers.
THURSDAY East winds 15 to 20 knots. Seas 6 to 8 feet. Wave Detail: North northeast 6 feet at 12 seconds and east 3 feet at 7 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, then scattered showers after midnight.
Maui County Leeward Waters- 304 PM HST Sun Dec 21 2025
TONIGHT East northeast winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: North 3 feet at 11 seconds. Hazy this evening.
MONDAY Northeast winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: North 3 feet at 11 seconds. Isolated showers in the afternoon.
MONDAY NIGHT East northeast winds 15 to 20 knots. Seas to 3 feet. Wave Detail: North 3 feet at 10 seconds. Isolated showers.
TUESDAY East northeast winds 15 to 20 knots. Seas to 3 feet.
TUESDAY NIGHT East northeast winds 15 to 20 knots, easing to 10 to 15 knots after midnight. Seas to 2 feet or less.
WEDNESDAY East northeast winds 10 to 15 knots. Seas to 2 feet or less.
WEDNESDAY NIGHT East northeast winds 10 to 15 knots. Seas to 3 feet.
THURSDAY East winds 10 to 15 knots, becoming east northeast 15 to 20 knots after midnight. Seas 3 to 5 feet.
FRIDAY East northeast winds 10 to 15 knots, rising to 15 to 20 knots after midnight. Seas 3 to 5 feet. Wave Detail: North 3 feet at 12 seconds.
Maalaea Bay- 304 PM HST Sun Dec 21 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...
TONIGHT North winds to 25 knots. Seas to 2 feet or less.
MONDAY North winds to 25 knots. Seas to 2 feet or less. Hazy in the morning.
MONDAY NIGHT North winds to 25 knots. Seas to 2 feet or less.
TUESDAY North northeast winds 20 to 25 knots. Seas to 2 feet or less.
TUESDAY NIGHT North winds to 25 knots. Seas to 2 feet or less.
WEDNESDAY North winds 20 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 20 to 25 knots. Seas to 2 feet or less.
FRIDAY North winds 20 to 25 knots. Seas to 3 feet.
Pailolo Channel- 304 PM HST Sun Dec 21 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...
TONIGHT East northeast winds 20 to 25 knots. Seas to 3 feet.
MONDAY East northeast winds 20 to 25 knots. Seas 3 to 4 feet. Isolated showers.
MONDAY NIGHT East northeast winds 20 to 25 knots. Gusts up to 35 knots after midnight. Seas to 3 feet. Scattered showers in the evening. Isolated showers after midnight.
TUESDAY East northeast winds 20 to 25 knots. Seas 3 to 4 feet. Scattered showers in the morning. Isolated showers in the afternoon.
TUESDAY NIGHT East northeast winds 20 to 25 knots. Seas 3 to 4 feet. Isolated showers.
WEDNESDAY East northeast winds 20 to 25 knots. Seas 3 to 4 feet. Isolated showers.
WEDNESDAY NIGHT East northeast winds 20 to 25 knots, becoming east 15 to 20 knots after midnight. Seas 3 to 4 feet. Isolated showers.
THURSDAY East winds 15 to 20 knots, becoming east northeast 20 to 25 knots in the afternoon and evening, then becoming east 15 to 20 knots after midnight. Seas 3 to 5 feet. Isolated showers.
FRIDAY East winds 15 to 20 knots, becoming east northeast 20 to 25 knots in the afternoon, then becoming east 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: Northeast 3 feet at 12 seconds. Isolated showers.
Alenuihaha Channel- 304 PM HST Sun Dec 21 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...
TONIGHT East northeast winds 20 to 25 knots. Gusts up to 35 knots after midnight. Seas 3 to 4 feet.
MONDAY East northeast winds 20 to 25 knots. Seas 3 to 5 feet. Isolated showers in the afternoon.
MONDAY NIGHT East northeast winds 20 to 25 knots. Gusts up to 35 knots after midnight. Seas 3 to 4 feet. Numerous showers in the evening. Scattered showers after midnight.
TUESDAY East northeast winds 20 to 25 knots. Gusts up to 35 knots in the afternoon. Seas 3 to 4 feet. Scattered showers in the morning. Isolated showers in the afternoon.
TUESDAY NIGHT East northeast winds 20 to 25 knots. Gusts up to 35 knots in the evening. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds. Isolated showers.
WEDNESDAY East northeast winds 20 to 25 knots. Seas 3 to 4 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 3 to 5 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 and evening, then becoming east 15 to 20 knots after midnight. Seas 4 to 6 feet. Wave Detail: North northeast 4 feet at 12 seconds. Isolated showers after midnight.
FRIDAY East winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: North northeast 4 feet at 12 seconds. Isolated showers through the night. Isolated showers after midnight.
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