National Weather Service Marine Forecast FZHW60 PHFO

FZHW60 PHFO 211501
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
501 AM HST Sun Jun 21 2026

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.

PHZ105-220015
501 AM HST Sun Jun 21 2026

Synopsis for the Hawaiian offshore waters

A weak high pressure ridge north of the Hawaiian Islands will strengthen by the middle of next week, increasing trade winds and building seas into next weekend.

PHZ180-220015
Hawaiian Offshore Waters
501 AM HST Sun Jun 21 2026

TODAY
NE winds 10 to 15 kt. Seas 5 to 7 ft.

TONIGHT AND MONDAY
E winds 10 to 15 kt. Seas 4 to 6 ft.

MONDAY NIGHT THROUGH WEDNESDAY
E winds 10 to 20 kt. Seas 5 to 7 ft.

THURSDAY
E winds 15 to 25 kt. Seas 6 to 8 ft.