The Offshore Waters Forecast for Hawai`i.

Offshore Forecast Issued: 04/06/2026 01:10:00 AM UTC
                        
594
FZHW60 PHFO 051510
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
510 AM HST Sun Apr 5 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.

PHZ105-060130-
510 AM HST Sun Apr 5 2026

.Synopsis for the Hawaiian offshore waters...
High pressure N of waters will shift slowly E during the next few
days, while broad troughing develops W of the area. The trough is
expected to enter the NW waters on Thursday.

$$

PHZ180-060130-
Hawaiian Offshore Waters-
510 AM HST Sun Apr 5 2026

.TODAY...E winds 10 to 20 kt. Seas 4 to 7 ft.
.TONIGHT THROUGH MONDAY NIGHT...W of 160W, E to SE winds 5 to 15
kt. E of 160W, E to SE winds 10 to 20 kt. Seas 4 to 7 ft.
Isolated thunderstorms NW waters Monday night.
.TUESDAY AND WEDNESDAY...W of 160W, variable winds 10 kt or less.
E of 160W, SE winds 10 to 20 kt. Seas 5 to 9 ft. Isolated
thunderstorms.
.THURSDAY...Trough moving into NW waters. W of trough, NE winds
10 to 20 kt. E of trough, SE winds 10 to 25 kt. Seas 6 to 9 ft.
Isolated thunderstorms.

$$