FZHW50 PHFO 130142 CWFHFO Coastal Waters Forecast National Weather Service Honolulu HI 341 PM HST Mon Jan 12 2026 Hawaiian coastal waters within 40 nautical miles including the Hawaiian Islands Humpback Whale National Marine Sanctuary. 341 PM HST Mon Jan 12 2026 .Synopsis for Hawaiian coastal waters... A front moving across the islands this afternoon will stall and dissipate just east of the Big Island tonight. Another front will move west to east across the islands Wednesday into Thursday. A passing high pressure system far north of the islands will bring back easterly trade winds from Friday through Sunday.
Oahu Windward Waters- 342 PM HST Mon Jan 12 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...
TONIGHT North northwest winds 15 to 20 knots, becoming north 10 to 15 knots after midnight. Seas 18 to 21 feet, subsiding to 16 to 18 feet after midnight. Wave Detail: Northwest 19 feet at 15 seconds and northwest 6 feet at 6 seconds.
TUESDAY East northeast winds 10 to 15 knots. Seas 14 to 17 feet, subsiding to 13 to 15 feet in the afternoon. Wave Detail: Northwest 16 feet at 14 seconds.
TUESDAY NIGHT Southeast winds 10 to 15 knots. Seas 10 to 13 feet, subsiding to 9 to 10 feet after midnight. Wave Detail: Northwest 13 feet at 13 seconds and east southeast 4 feet at 9 seconds. Scattered showers after midnight.
WEDNESDAY South winds 15 to 20 knots, becoming south southwest 20 to 25 knots in the afternoon. Seas 9 to 10 feet, subsiding to 7 to 10 feet in the afternoon. Wave Detail: Northwest 9 feet at 12 seconds and east 4 feet at 6 seconds. Scattered showers.
WEDNESDAY NIGHT Southwest winds to 20 knots, becoming west northwest after midnight. Seas 8 to 11 feet. Wave Detail: Northwest 9 feet at 12 seconds and southwest 6 feet at 6 seconds. Occasional showers.
THURSDAY North northwest winds 15 to 20 knots. Seas 12 to 16 feet, building to 16 to 21 feet in the afternoon. Wave Detail: North northwest 20 feet at 15 seconds and northwest 6 feet at 6 seconds. Scattered showers in the morning.
THURSDAY NIGHT North northeast winds to 15 knots. Seas 17 to 21 feet, subsiding to 16 to 18 feet after midnight. Wave Detail: Northwest 20 feet at 15 seconds and north northwest 5 feet at 5 seconds.
FRIDAY East northeast winds to 15 knots. Seas 11 to 15 feet. Wave Detail: North northwest 15 feet at 15 seconds and east 4 feet at 5 seconds.
SATURDAY East northeast winds 15 to 20 knots. Seas 7 to 10 feet. Wave Detail: North 9 feet at 13 seconds and east 4 feet at 6 seconds.
Oahu Leeward Waters- 342 PM HST Mon Jan 12 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...
TONIGHT North winds 20 to 25 knots, becoming north northeast 15 to 20 knots after midnight. Seas 9 to 13 feet, subsiding to 8 to 11 feet after midnight. Wave Detail: North northwest 13 feet at 15 seconds and northwest 6 feet at 6 seconds.
TUESDAY East northeast winds 10 to 15 knots. Seas 7 to 10 feet. Wave Detail: North northwest 10 feet at 14 seconds and east 3 feet at 4 seconds.
TUESDAY NIGHT Southeast winds to 10 knots. Seas 5 to 7 feet. Wave Detail: Northwest 7 feet at 13 seconds and southeast 3 feet at 5 seconds. Hazy. Isolated showers in the evening. Scattered showers after midnight.
WEDNESDAY South southwest winds 15 to 20 knots. Seas 5 to 6 feet, building to 6 to 8 feet in the afternoon. Wave Detail: West southwest 6 feet at 6 seconds and north northwest 4 feet at 12 seconds. Scattered showers.
WEDNESDAY NIGHT Southwest winds to 20 knots, becoming west northwest 10 to 15 knots after midnight. Seas 5 to 8 feet. Wave Detail: Northwest 6 feet at 12 seconds and west southwest 5 feet at 6 seconds. Occasional showers.
THURSDAY North winds 15 to 20 knots. Seas 9 to 13 feet. Wave Detail: North northwest 13 feet at 14 seconds and northwest 5 feet at 6 seconds. Scattered showers in the morning.
THURSDAY NIGHT North northeast winds 15 to 20 knots. Seas 9 to 13 feet. Wave Detail: North northwest 13 feet at 15 seconds and north 5 feet at 6 seconds.
FRIDAY Northeast winds 15 to 20 knots. Seas 7 to 10 feet. Wave Detail: North northwest 10 feet at 15 seconds and east northeast 4 feet at 5 seconds.
SATURDAY East northeast winds 15 to 20 knots. Seas 5 to 8 feet. Wave Detail: North northwest 6 feet at 13 seconds and east northeast 3 feet at 5 seconds.
Kaiwi Channel- 342 PM HST Mon Jan 12 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...
TONIGHT North winds 20 to 25 knots, becoming north northeast 15 to 20 knots after midnight. Seas 11 to 15 feet, subsiding to 9 to 13 feet after midnight. Wave Detail: North northwest 15 feet at 15 seconds and north northwest 6 feet at 6 seconds.
TUESDAY Northeast winds to 15 knots. Seas 9 to 12 feet. Wave Detail: North northwest 12 feet at 14 seconds.
TUESDAY NIGHT East southeast winds 10 to 15 knots, veering to southeast 7 to 10 knots after midnight. Seas 7 to 10 feet. Wave Detail: North northwest 10 feet at 13 seconds and east southeast 3 feet at 5 seconds. Hazy. Scattered showers after midnight.
WEDNESDAY South winds 10 to 15 knots, becoming south southwest to 20 knots in the afternoon. Seas 5 to 8 feet. Wave Detail: North northwest 7 feet at 12 seconds and west southwest 5 feet at 6 seconds. Scattered showers.
WEDNESDAY NIGHT Southwest winds to 20 knots, becoming west after midnight. Seas 6 to 9 feet. Wave Detail: Northwest 6 feet at 12 seconds and west southwest 5 feet at 6 seconds. Occasional showers.
THURSDAY North northwest winds to 15 knots. Seas 9 to 13 feet, building to 11 to 15 feet in the afternoon. Wave Detail: North northwest 15 feet at 15 seconds and north northwest 5 feet at 6 seconds. Numerous showers in the morning.
THURSDAY NIGHT North northeast winds 15 to 20 knots. Seas 11 to 15 feet. Wave Detail: Northwest 15 feet at 15 seconds and north 5 feet at 6 seconds.
FRIDAY Northeast winds 15 to 20 knots. Seas 8 to 11 feet. Wave Detail: North northwest 11 feet at 15 seconds and east northeast 4 feet at 5 seconds.
SATURDAY East northeast winds 15 to 20 knots. Seas 6 to 9 feet. Wave Detail: North 8 feet at 13 seconds and east northeast 4 feet at 5 seconds.
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