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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 9:33 pm EST Nov 15, 2025
Forecast Valid: 10pm EST Nov 15, 2025-6pm EST Nov 22, 2025

Tonight

S wind around 15 kt, with gusts as high as 25 kt. Rain, mainly before 4am. Seas 2 to 3 ft.

Sunday

WSW wind 15 to 20 kt becoming W 20 to 25 kt in the afternoon. Isolated showers before 1pm, then isolated showers after 2pm. Seas 2 to 3 ft.

Sunday Night

W wind 20 to 25 kt, with gusts as high as 35 kt. Mostly cloudy. Seas around 3 ft.

Monday

WNW wind around 25 kt, with gusts as high as 35 kt. Mostly sunny. Seas around 3 ft.

Monday Night

W wind around 20 kt, with gusts as high as 30 kt. Mostly clear. Seas 2 to 3 ft.

Tuesday

W wind 15 to 20 kt, with gusts as high as 30 kt. Sunny. Seas around 2 ft.

Tuesday Night

W wind 10 to 15 kt. Mostly clear. Seas around 1 ft.

Wednesday

WNW wind 5 to 10 kt. Sunny. Seas around 1 ft.

Wednesday Night

NW wind 5 to 10 kt. Partly cloudy. Seas around 1 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.