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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:05 pm EST Dec 7, 2025
Forecast Valid: 12am EST Dec 8, 2025-6pm EST Dec 14, 2025

Overnight

WSW wind around 20 kt becoming NW. Winds could gust as high as 30 kt. Mostly clear. Seas 2 to 3 ft.

Monday

NW wind 17 to 20 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 2 to 3 ft.

Monday Night

NW wind 10 to 15 kt. Mostly clear. Seas around 2 ft.

Tuesday

W wind 5 to 8 kt becoming SSW 10 to 15 kt in the afternoon. Increasing clouds. Seas 1 to 2 ft.

Tuesday Night

SW wind 15 to 20 kt, with gusts as high as 25 kt. A chance of snow, mixing with rain after 10pm, then gradually ending. Seas around 3 ft.

Wednesday

SSW wind 15 to 20 kt. Rain likely, mainly after 2pm. Seas 2 to 3 ft.

Wednesday Night

SW wind 15 to 20 kt. A chance of rain before 2am. Seas 2 to 3 ft.

Thursday

W wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 2 to 3 ft.

Thursday Night

W wind 10 to 15 kt, with gusts as high as 20 kt. Mostly 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.