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9NM ESE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:14 am EST Dec 9, 2025
Forecast Valid: 11am EST Dec 9, 2025-6pm EST Dec 15, 2025

Today

W wind 5 to 10 kt becoming SW in the afternoon. Increasing clouds. Seas around 1 ft.

Tonight

SSW wind 15 to 20 kt. A chance of snow, mainly before 3am. Seas 2 to 3 ft.

Wednesday

S wind 15 to 20 kt, with gusts as high as 30 kt. A slight chance of snow before 10am, then rain. Seas around 3 ft.

Wednesday Night

SW wind 15 to 20 kt, with gusts as high as 25 kt. Rain likely before 1am. Seas 3 to 4 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 around 3 ft.

Friday

W wind around 20 kt, with gusts as high as 25 kt. Sunny. Seas 2 to 3 ft.

Friday Night

W wind 10 to 15 kt, with gusts as high as 25 kt. Partly cloudy. Seas 1 to 2 ft.

Saturday

WSW wind 10 to 15 kt, with gusts as high as 25 kt. Partly 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.