


Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
670 FZHW60 PHFO 101509 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 509 AM HST Fri Oct 10 2025 Hawaiian offshore waters beyond 40 nautical miles out to 240 nautical miles including the portion of the Papahanaumokuakea Marine National Monument east of French Frigate Shoals Seas given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height. PHZ105-102300- 509 AM HST Fri Oct 10 2025 .Synopsis for the Hawaiian offshore waters... A troughing pattern will continue to weaken trade winds near Hawaiian waters into early next week. An upper level disturbance lingering north of the island chain will bring periods of enhanced showers through the weekend. The potential for thunderstorms will continue into early next week. $$ PHZ180-102300- Hawaiian Offshore Waters- 509 AM HST Fri Oct 10 2025 .TODAY...SE waters, E winds 10 to 15 kt. NW waters, SE winds 5 to 10 kt. Seas 4 to 6 ft. Isolated thunderstorms. .TONIGHT...SE waters, E winds 10 to 15 kt. NW waters, SE winds 5 to 10 kt. Seas 4 to 6 ft. Isolated thunderstorms. .SATURDAY THROUGH SUNDAY...SE waters, E winds 10 to 20 kt. NW waters, NE to E winds 5 to 10 kt. Seas 5 to 8 ft. .MONDAY AND TUESDAY...E winds 10 to 15 kt. Seas 6 to 9 ft. Isolated thunderstorms N waters. $$