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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:24 pm EDT Apr 9, 2026
Forecast Valid: 5pm EDT Apr 9, 2026-6pm EDT Apr 16, 2026

Tonight

SSW wind 17 to 20 kt decreasing to 15 to 18 kt after midnight. Winds could gust as high as 25 kt. Mostly clear. Seas 2 to 3 ft.

Friday

SSW wind 10 to 15 kt becoming S in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas around 2 ft.

Friday Night

SSW wind 15 to 20 kt. A chance of showers, mainly after 10pm. Seas around 3 ft.

Saturday

NW wind around 15 kt, with gusts as high as 20 kt. Partly sunny, then gradually becoming sunny. Seas 2 to 3 ft.

Saturday Night

NW wind around 10 kt. Clear. Seas around 2 ft.

Sunday

WNW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Sunday Night

S wind 15 to 20 kt, with gusts as high as 25 kt. A chance of showers after 10pm. Seas around 3 ft.

Monday

SSW wind 15 to 20 kt, with gusts as high as 30 kt. A chance of showers. Seas around 4 ft.

Monday Night

WSW wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas 3 to 4 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.