


Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
316 FZHW60 PHFO 292139 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 1139 AM HST Fri Aug 29 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. PHZ105-300430- 1139 AM HST Fri Aug 29 2025 .Synopsis for the Hawaiian offshore waters... A ridge of high pressure N of the state will gradually shift southward and stall just near the northern offshore waters this weekend. A trough of low pressure will pass near the SE and S waters this weekend into early next week. $$ PHZ180-300430- Hawaiian Offshore Waters- 1139 AM HST Fri Aug 29 2025 .THIS AFTERNOON AND TONIGHT...E winds up to 10 kt N of 24N, E 10 to 20 kt elsewhere. Seas 4 to 7 ft. .SATURDAY...NW Half, E winds 5 to 15 kt, diminishing to up to 10 kt in the afternoon. SE Half, E winds 10 to 20 kt. Seas 4 to 7 ft. .SATURDAY NIGHT...NW Half, E winds 5 to 10 kt. SE Half, E winds 10 to 20 kt. Seas 4 to 7 ft. Isolated thunderstorms SE waters. .SUNDAY AND MONDAY...NW Half, E winds 5 to 10 kt. SE Half, E winds 10 to 20 kt. Seas 5 to 7 ft. Isolated thunderstorms S waters. .TUESDAY...E winds up to 10 kt N of 24N, E 10 to 20 kt elsewhere. Seas 5 to 6 ft. $$