For More Weather Information:

4NM E Wainaku HI

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:01 am HST May 21, 2026
Forecast Valid: 10am HST May 21, 2026-6pm HST May 27, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY FRIDAY MORNING...

Today

ENE wind 7 to 12 kt. Scattered showers. N swell 1 ft at 9 seconds. Waves 9 to 10 ft.

Tonight

NE wind 7 to 12 kt. Showers likely, mainly before midnight. N swell 1 ft at 9 seconds. Waves around 9 ft.

Friday

NNE wind 9 to 12 kt. Scattered showers. N swell 1 ft at 11 seconds. Waves 8 to 9 ft.

Friday Night

NNE wind 7 to 11 kt. Showers likely, mainly after midnight. N swell 1 ft. Waves around 8 ft.

Saturday

NE wind 8 to 12 kt. Showers likely, mainly before noon. N swell 1 ft. Waves around 8 ft.

Saturday Night

ENE wind 6 to 9 kt. Scattered showers. N swell 1 ft. Waves around 8 ft.

Sunday

ENE wind 5 to 9 kt becoming variable and less than 5 kt in the afternoon. Showers likely, mainly before noon. N swell 1 ft. Waves 6 to 8 ft.

Sunday Night

Variable winds less than 5 kt becoming NE around 6 kt after midnight. Scattered showers. N swell 1 ft. Waves 6 to 7 ft.

Memorial Day

ENE wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Scattered showers. N swell 1 ft. Waves around 7 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.