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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 9:35 pm EDT May 4, 2026
Forecast Valid: 12am EDT May 5, 2026-6pm EDT May 11, 2026

Overnight

SSW wind around 15 kt, with gusts as high as 20 kt. Partly cloudy. Seas around 3 ft.

Tuesday

S wind 15 to 20 kt. Sunny. Seas 3 to 4 ft.

Tuesday Night

SSW wind 15 to 20 kt. Increasing clouds. Seas 4 to 5 ft.

Wednesday

S wind 20 to 25 kt. Rain likely, mainly after 4pm. Seas 4 to 5 ft.

Wednesday Night

S wind 17 to 20 kt decreasing to 15 to 18 kt after midnight. Winds could gust as high as 25 kt. Rain, mainly before 2am. Seas 3 to 4 ft.

Thursday

WNW wind around 10 kt becoming SW in the afternoon. A chance of showers. Seas 2 to 3 ft.

Thursday Night

SSW wind 5 to 10 kt becoming NW after midnight. A chance of showers before 3am. Seas around 2 ft.

Friday

W wind around 10 kt. Mostly sunny. Seas around 2 ft.

Friday Night

WSW wind around 10 kt. Partly cloudy. Seas around 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.