


Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
015 FZHW60 PHFO 132129 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 1129 AM HST Mon Oct 13 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. PHZ105-140430- 1129 AM HST Mon Oct 13 2025 .Synopsis for the Hawaiian offshore waters... A trough north of the offshore area will weaken Tuesday night with trade winds building in for the rest of the week. An upper low will also track over the area beginning around Tuesday night through Friday. Isolated thunderstorms for N waters over the next couple of days moving to NW as upper low digs in. $$ PHZ180-140430- Hawaiian Offshore Waters- 1129 AM HST Mon Oct 13 2025 .THIS AFTERNOON THROUGH TONIGHT...S of 20N, E winds 10 to 15 kt. N of 20N E of 158W, E to SE winds 5 to 10 kt. N of 20N W of 158W, NE to E winds 5 to 10 kt. Seas 6 to 8 ft. Isolated thunderstorms E of 160W. .TUESDAY...E winds 10 to 20 kt. Seas 6 to 8 ft. Isolated thunderstorms N of 23N E of 156W, and S of 19N. .TUESDAY NIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft. Isolated thunderstorms S waters. .WEDNESDAY AND THURSDAY...E winds 10 to 20 kt. Seas 6 to 8 ft. Isolated thunderstorms NW waters. .FRIDAY...E winds 15 to 25 kt. Seas 6 to 8 ft. Isolated thunderstorms NW Half. $$