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Honolulu, HI Local Forecast Office

8NM SW Waikapu HI

Marine Point Forecast

[NOTICE]

Today
High: 80 °F
NE 20kt⇓
2-3ft

Small Craft Advisory
Tonight
Low: 77 °F
⇑NE 10kt
2ft
Friday
High: 80 °F
NE 19kt⇓
1-2ft
Friday Night
Low: 76 °F
NE 7kt⇓
1ft
Saturday
High: 79 °F
Light Wind
1ft
Saturday Night
Low: 75 °F
Light Wind
1ft
Sunday
High: 80 °F
Light Wind
1ft
Sunday Night
Low: 76 °F
Light Wind
1ft
Monday
High: 80 °F
Light Wind
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:19 am HST Nov 20, 2025
Forecast Valid: 7am HST Nov 20, 2025-6pm HST Nov 26, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...

Today

NE wind 15 to 20 kt decreasing to 6 to 11 kt in the afternoon. Winds could gust as high as 26 kt. Partly sunny. NNW swell 0 to 1 ft at 14 seconds decreasing to at 0 seconds . Waves 2 to 3 ft.

Tonight

Variable winds less than 5 kt becoming NE 5 to 10 kt after midnight. Mostly cloudy. NNW swell 0 ft at 0 seconds. Waves around 2 ft.

Friday

NE wind 14 to 19 kt becoming variable and less than 5 kt. Partly sunny. NNW swell 0 ft at 0 seconds. Waves 1 to 2 ft.

Friday Night

NE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly cloudy. NNW swell 0 ft. Waves around 1 ft.

Saturday

Variable winds 5 kt or less. Mostly sunny. NW swell 0 ft. Waves around 1 ft.

Saturday Night

Variable winds 5 kt or less. Partly cloudy. NW swell 0 ft. Waves around 1 ft.

Sunday

Variable winds 5 kt or less. Sunny. NW swell 0 ft. Waves around 1 ft.

Sunday Night

Variable winds 5 kt or less. Mostly clear. NW swell 0 ft. Waves around 1 ft.

Monday

Variable winds 5 kt or less. Sunny. NNW swell 0 ft. Waves 1 to 2 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.