Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
595 FZHW60 PHFO 150926 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 1126 PM HST Mon Sep 14 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. PHZ105-151645- 1126 PM HST Mon Sep 14 2026 .Synopsis for the Hawaiian offshore waters... A trough to the NE will keep light to moderate trade winds through Tuesday afternoon. A building ridge and a new trough will lead to an increase in trade winds and increased chances for isolated thunderstorms Wednesday through Friday. $$ PHZ180-151645- Hawaiian Offshore Waters- 1126 PM HST Mon Sep 14 2026 .REST OF TONIGHT...NE to E winds 10 to 15 kt. Seas 6 ft or less. .TUESDAY...NE to E winds 10 to 15 kt. Seas 6 ft or less. .TUESDAY NIGHT AND WEDNESDAY...NE winds 10 to 20 kt. Seas 6 ft. .WEDNESDAY NIGHT AND THURSDAY...NE to E winds 15 to 25 kt. Seas 6 to 8 ft. Isolated thunderstorms SE Waters. .FRIDAY...E winds 15 to 25 kt. Seas 7 to 9 ft. Isolated thunderstorms S of 23N. .SATURDAY...E winds 15 to 25 kt. Seas 7 to 8 ft. Isolated thunderstorms S of 20N. $$