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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:43 pm EDT Apr 11, 2026
Forecast Valid: 8pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026

Tonight

WNW wind 10 to 15 kt. Clear. Seas 2 to 3 ft.

Sunday

SSW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Increasing clouds. Seas 1 to 2 ft.

Sunday Night

S wind around 15 kt, with gusts as high as 25 kt. Showers, mainly after 11pm. Seas around 3 ft.

Monday

SSW wind 15 to 20 kt. Showers likely before 10am, then a chance of showers after noon. Seas around 4 ft.

Monday Night

W wind 10 to 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas 3 to 4 ft.

Tuesday

W wind 5 to 10 kt becoming SSE in the afternoon. Partly sunny. Seas 1 to 2 ft.

Tuesday Night

S wind around 10 kt becoming SW after midnight. A chance of showers between 8pm and 3am. Seas around 2 ft.

Wednesday

SW wind around 10 kt becoming SE in the afternoon. Partly sunny. Seas around 2 ft.

Wednesday Night

S wind around 10 kt becoming WSW after midnight. A chance of 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.