The Offshore Waters Forecast for Hawai`i.

Offshore Forecast Issued: 06/19/2026 01:01:00 AM UTC
                        
359
FZHW60 PHFO 181501
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
501 AM HST Thu Jun 18 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.

PHZ105-190200-
501 AM HST Thu Jun 18 2026

.Synopsis for the Hawaiian offshore waters...
A surface ridge just N of the offshore waters will remain weak
during the next few days as a broad surface trough drifts to the
NW over central waters. The ridge N of the area will strengthen
Sunday and Monday.

$$

PHZ180-190200-
Hawaiian Offshore Waters-
501 AM HST Thu Jun 18 2026

.TODAY...NW half E to SE winds 5 to 10 kt. SE half, E winds 10 to
15 kt. Seas 4 to 6 ft.
.TONIGHT THROUGH SATURDAY...N of 21N, E to SE winds 10 kt or
less. S of 21N, E winds 10 to 15 kt. Seas 4 to 6 ft.
.SUNDAY...N of 21N, E to NE winds 10 kt. S of 21N, E winds 10 to
20 kt. Seas 4 to 7 ft.
.MONDAY...E winds 10 to 20 kt. Seas 5 to 7 ft.

$$