The Offshore Waters Forecast for Hawai`i.

Offshore Forecast Issued: 05/19/2026 01:01:00 AM UTC

                        
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FZHW60 PHFO 181501
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
501 AM HST Mon May 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.

PHZ105-182315-
501 AM HST Mon May 18 2026

.Synopsis for the Hawaiian offshore waters...
Solid trades this week that will strengthen into late week. A
more stable environment equates to very low thunderstorm chances.

$$

PHZ180-182315-
Hawaiian Offshore Waters-
501 AM HST Mon May 18 2026

.TODAY...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TONIGHT THROUGH TUESDAY...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUESDAY NIGHT THROUGH FRIDAY...E winds 15 to 25 kt. Seas 6 to 9
ft through Wednesday...8 to 10 ft Thursday and Friday.

$$