


Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
226 FZHW60 PHFO 180314 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 514 PM HST Sun Aug 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- 514 PM HST Sun Aug 17 2025 .Synopsis for the Hawaiian offshore waters... High pressure ridging building N of the region will maintain moderate to fresh E trades. $$ PHZ180-181030- Hawaiian Offshore Waters- 514 PM HST Sun Aug 17 2025 .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .MONDAY THROUGH FRIDAY...E winds 10 to 20 kt. Seas 5 to 8 ft. Winds and seas frequently higher S of 18N. $$