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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 12:22 am EDT Apr 8, 2026
Forecast Valid: 1am EDT Apr 8, 2026-6pm EDT Apr 14, 2026

Wednesday

N wind 7 to 10 kt becoming NNE 5 to 8 kt in the morning. Sunny. Seas 1 to 2 ft.

Wednesday Night

S wind around 10 kt becoming SW after midnight. Clear. Seas 1 to 2 ft.

Thursday

SSE wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 1 to 2 ft.

Thursday Night

SSW wind 15 to 20 kt decreasing to 10 to 15 kt after midnight. Partly cloudy. Seas 2 to 3 ft.

Friday

SSW wind around 10 kt becoming S in the afternoon. Sunny. Seas 1 to 2 ft.

Friday Night

S wind 10 to 15 kt becoming WSW after midnight. A chance of showers after 9pm. Seas around 3 ft.

Saturday

NW wind around 10 kt. Mostly sunny. Seas 2 to 3 ft.

Saturday Night

NW wind 5 to 10 kt. Mostly clear. Seas around 2 ft.

Sunday

NW wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. Sunny. Seas 1 to 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.