


Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
647 FZHW60 PHFO 220317 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 517 PM HST Sat Jun 21 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. PHZ105-221230- 517 PM HST Sat Jun 21 2025 .Synopsis for the Hawaiian offshore waters... High pressure will remain anchored NE of Hawaii this weekend and bring moderate to strong trade winds. The high is expected to weaken slightly by early next week. $$ PHZ180-221230- Hawaiian Offshore Waters- 517 PM HST Sat Jun 21 2025 .TONIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .SUNDAY...E winds 15 to 25 kt. Seas 6 to 9 ft. .SUNDAY NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .MONDAY...E winds 10 to 20 kt. Seas 7 to 9 ft. .MONDAY NIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft. .TUESDAY...E winds 10 to 20 kt. Seas 6 to 9 ft. .WEDNESDAY...E winds 10 to 20 kt. Seas 6 to 8 ft. .THURSDAY...E winds 10 to 20 kt. Seas 6 to 7 ft. $$