


Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
468 FZHW60 PHFO 180318 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 518 PM HST Fri Oct 17 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. PHZ105-181030- 518 PM HST Fri Oct 17 2025 .Synopsis for the Hawaiian offshore waters... A broad trough remains over the W offshore waters for the next couple of days. An upper low will drift over the NW half of the area through the weekend, producing a few thunderstorms. $$ PHZ180-181030- Hawaiian Offshore Waters- 518 PM HST Fri Oct 17 2025 .TONIGHT...E winds 15 to 25 kt. Seas 7 to 9 ft. Isolated thunderstorms NW Half. .SATURDAY THROUGH SATURDAY NIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft. Isolated thunderstorms NW Half. .SUNDAY THROUGH SUNDAY NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. Isolated thunderstorms NW Half. .MONDAY THROUGH WEDNESDAY...E winds 10 to 20 kt. Seas 6 to 8 ft. $$