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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 4:17 am EST Jan 11, 2026
Forecast Valid: 4am EST Jan 11, 2026-6pm EST Jan 17, 2026

Sunday

NNE wind 10 to 15 kt becoming NW 5 to 8 kt in the morning. Winds could gust as high as 25 kt. A chance of rain, mainly before 11am. Seas 3 to 4 ft.

Sunday Night

W wind 15 to 20 kt increasing to 20 to 25 kt after midnight. Winds could gust as high as 40 kt. Partly cloudy. Seas around 3 ft.

Monday

W wind 20 to 25 kt decreasing to 15 to 20 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas 2 to 3 ft.

Monday Night

WSW wind around 15 kt. Partly cloudy. Seas around 2 ft.

Tuesday

WSW wind 10 to 15 kt. Sunny. Seas around 2 ft.

Tuesday Night

SSW wind 15 to 20 kt. Cloudy. Seas 2 to 3 ft.

Wednesday

SSW wind 10 to 15 kt, with gusts as high as 20 kt. Cloudy. Seas 2 to 3 ft.

Wednesday Night

SW wind around 10 kt becoming W after midnight. A chance of showers. Seas around 2 ft.

Thursday

W wind 10 to 15 kt becoming NNW in the afternoon. A chance of rain showers before 3pm, then a chance of rain and snow 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.