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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:35 am EDT May 6, 2026
Forecast Valid: 5am EDT May 6, 2026-6pm EDT May 12, 2026

Today

S wind 15 to 20 kt increasing to 20 to 25 kt in the afternoon. A chance of showers after 4pm. Seas 3 to 4 ft.

Tonight

S wind 17 to 20 kt decreasing to 15 to 18 kt after midnight. Winds could gust as high as 30 kt. Showers, mainly before 2am. Seas around 3 ft.

Thursday

NW wind 5 to 10 kt becoming SW in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Thursday Night

WNW wind 5 to 10 kt. Partly cloudy. Seas 1 to 2 ft.

Friday

W wind around 10 kt. Sunny. Seas around 2 ft.

Friday Night

WSW wind around 10 kt. Partly cloudy. Seas around 2 ft.

Saturday

S wind 5 to 10 kt. Showers likely, mainly after 5pm. Seas around 2 ft.

Saturday Night

S wind 10 to 15 kt. A chance of showers. Seas 2 to 3 ft.

Sunday

S wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Partly sunny. 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.