Coastal Waters Forecast for Alenuihaha Channel (PHZ121) (Text-Only)
NWS Forecast for: Alenuihaha Channel (PHZ121)
Issued by: National Weather Service Honolulu, HI
Last Update: 300 AM HST Sun May 31 2026


Today: East northeast winds 10 to 15 knots, rising to 15 to 20 knots this afternoon. Seas 4 to 5 feet. Wave detail: south southwest 4 feet at 15 seconds and east 3 feet at 8 seconds. Isolated showers.

Tonight: Northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave detail: east 4 feet at 5 seconds and south southwest 4 feet at 14 seconds. Isolated showers.

Monday: Northeast winds 10 to 15 knots, becoming east northeast 15 to 20 knots in the afternoon. Seas 5 to 7 feet. Wave detail: east 4 feet at 6 seconds and south southwest 4 feet at 18 seconds. Isolated showers in the morning. Scattered showers in the afternoon.

Monday Night: East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave detail: east 5 feet at 6 seconds and south southwest 4 feet at 17 seconds. Isolated showers.

Tuesday: East northeast winds 15 to 20 knots, rising to 20 to 25 knots in the afternoon. Seas 5 to 7 feet. Wave detail: east 5 feet at 6 seconds and south southwest 5 feet at 16 seconds. Isolated showers.

Tuesday Night: East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Wave detail: east 7 feet at 6 seconds and south southwest 5 feet at 18 seconds. Isolated showers.

Wednesday: East northeast winds 20 to 25 knots. Seas 8 to 11 feet. Wave detail: east 9 feet at 7 seconds and south southwest 5 feet at 16 seconds. Isolated showers.

Thursday: East northeast winds to 25 knots. Seas 7 to 10 feet. Wave detail: east northeast 9 feet at 7 seconds and south southwest 4 feet at 15 seconds. Isolated showers.







Zone Forecast: Alenuihaha Channel (PHZ121)

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