Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
065 FZHW60 PHFO 200301 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 501 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. PHZ105-201345- 501 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. $$ PHZ180-201345- Hawaiian Offshore Waters- 501 PM HST Sat Sep 19 2026 .TONIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft. Isolated thunderstorms SE Waters. .SUNDAY...E winds 15 to 25 kt. Seas 7 to 8 ft. Isolated thunderstorms SE Waters. .SUNDAY NIGHT...E winds 15 to 25 kt. Seas 7 to 9 ft. Isolated thunderstorms SE Waters. .MONDAY...E winds 10 to 20 kt N of 24N, E 15 to 25 kt elsewhere. Seas 7 to 9 ft. .MONDAY NIGHT...NE winds 15 to 25 kt. Seas 7 to 9 ft. Isolated thunderstorms SE Waters. .TUESDAY...NE winds 15 to 25 kt E of 160W, NE 10 to 15 kt W of 160W. Seas 6 to 11 ft. Isolated thunderstorms SE Waters. .WEDNESDAY...NE winds 15 to 25 kt. Seas 6 to 10 ft. Isolated thunderstorms E of 160W. .THURSDAY...NE winds 15 to 25 kt. Seas 6 to 8 ft. Isolated thunderstorms S of 24N. $$