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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:23 am EDT May 10, 2026
Forecast Valid: 10am EDT May 10, 2026-6pm EDT May 16, 2026

Today

S wind 5 to 10 kt. A chance of showers, mainly after 2pm. Seas 2 to 3 ft.

Tonight

WSW wind 5 to 10 kt becoming NW after midnight. A chance of showers before 7pm. Seas around 2 ft.

Monday

WNW wind 5 to 10 kt becoming S in the afternoon. Cloudy, then gradually becoming mostly sunny. Seas around 2 ft.

Monday Night

WSW wind 5 to 10 kt becoming NNW after midnight. Mostly cloudy. Seas around 2 ft.

Tuesday

NNW wind 5 to 10 kt becoming SSE in the afternoon. Sunny. Seas 1 to 2 ft.

Tuesday Night

SW wind 5 to 10 kt becoming NW after midnight. Partly cloudy. Seas 1 to 2 ft.

Wednesday

SSE wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. A chance of showers after 3pm. Seas around 1 ft.

Wednesday Night

S wind around 15 kt, with gusts as high as 25 kt. Showers likely. Seas around 2 ft.

Thursday

SE wind around 15 kt, with gusts as high as 20 kt. Showers. 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.