Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
351 FZHW60 PHFO 200931 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 1131 PM HST Sat Sep 19 2026 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. PHZ105-201630- 1131 PM HST Sat Sep 19 2026 .Synopsis for the Hawaiian offshore waters... Isolated thunderstorms over the southern waters through the weekend. A trough then approaches from the E next week and will bring renewed thunderstorm potential. Fresh to strong trades continue through the period. $$ PHZ180-201630- Hawaiian Offshore Waters- 1131 PM HST Sat Sep 19 2026 .REST OF TONIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft. Isolated thunderstorms SE Waters. .SUNDAY...E winds 10 to 20 kt. Seas 7 to 9 ft. Isolated thunderstorms SE Waters. .SUNDAY NIGHT...E winds 10 to 20 kt N of 24N, E 15 to 25 kt elsewhere. Seas 7 to 9 ft. Isolated thunderstorms SE Waters. .MONDAY...E winds 10 to 20 kt N of 24N, E 15 to 25 kt elsewhere. Seas 7 to 9 ft. Isolated thunderstorms SE Waters. .MONDAY NIGHT...E winds 15 to 25 kt. Seas 7 to 9 ft. Isolated thunderstorms SE Waters. .TUESDAY...NE winds 15 to 25 kt. Seas 6 to 11 ft. Isolated thunderstorms SE Waters. .WEDNESDAY...E winds 10 to 20 kt. Seas 6 to 10 ft. Isolated thunderstorms E of 160W. .THURSDAY...E winds 15 to 25 kt. Seas 6 to 9 ft. Isolated thunderstorms S of 24N. $$