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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 12:20 pm EST Dec 8, 2025
Forecast Valid: 1pm EST Dec 8, 2025-6pm EST Dec 14, 2025

This Afternoon

NW wind around 15 kt, with gusts as high as 20 kt. Sunny. Seas 2 to 3 ft.

Tonight

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

Tuesday

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

Tuesday Night

SSW wind 15 to 20 kt. A chance of snow showers before 2am, then a chance of rain showers after 5am. Seas 2 to 3 ft.

Wednesday

SSW wind 15 to 20 kt, with gusts as high as 25 kt. Rain. Seas around 3 ft.

Wednesday Night

SSW wind 15 to 20 kt, with gusts as high as 30 kt. Rain likely before 1am. Seas around 3 ft.

Thursday

W wind 15 to 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas 2 to 3 ft.

Thursday Night

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

Friday

W wind 15 to 20 kt. Mostly 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.