


Coastal Waters Forecast
Issued by NWS
Issued by NWS
375 FZHW51 PHFO 171311 CWFHI1 Generalized Statewide Coastal Waters Forecast for Hawaii National Weather Service Honolulu HI 311 AM HST Sun Aug 17 2025 .Synopsis for Hawaiian coastal waters... Surface high pressure centered far north of the islands will help maintain fresh to locally strong east trade winds through the forecast period. $$ Hawaiian waters within 40 nautical miles including the channels- ...SMALL CRAFT ADVISORY THROUGH LATE THIS AFTERNOON FOR KAIWI CHANNEL...WATERS AROUND MAUI COUNTY...PAILOLO CHANNEL...ALENUIHAHA CHANNEL AND WATERS AROUND THE BIG ISLAND... .TODAY...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers. .TONIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers. .MONDAY...East winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers. .MONDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers. .TUESDAY...East winds 20 to 25 knots. Seas 5 to 8 feet. Isolated showers. .TUESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Scattered showers. .WEDNESDAY...East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Isolated showers through the night. Scattered showers through the day. .THURSDAY...East winds 20 to 25 knots. Seas 6 to 9 feet, subsiding to 5 to 6 feet. Isolated showers. $$