


Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
729 FZHW60 PHFO 311027 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 1227 AM HST Sun Aug 31 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. PHZ105-011030- 1227 AM HST Sun Aug 31 2025 .Synopsis for the Hawaiian offshore waters... A ridge of high pressure N of the state will gradually shift south and stall just N of the area today. A trough of low pressure will pass near the S waters into early next week bringing a chance of thunderstorms to the far S waters. $$ PHZ180-011030- Hawaiian Offshore Waters- 1227 AM HST Sun Aug 31 2025 .REST OF TONIGHT...NW Half, E winds 5 to 10 kt. SE Half, E winds 10 to 20 kt. Seas 4 to 7 ft. Isolated thunderstorms SE waters. .SUNDAY THROUGH MONDAY NIGHT...NW Half, E winds 5 to 10 kt. SE Half, E winds 10 to 20 kt. Seas 5 to 7 ft. Isolated thunderstorms S waters .TUESDAY THROUGH THURSDAY...E winds up to 10 kt N of 24N, E 10 to 20 kt elsewhere. Seas 5 to 7 ft. $$