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5NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 5:27 am EST Nov 20, 2025
Forecast Valid: 11am EST Nov 20, 2025-6pm EST Nov 26, 2025

Today

Variable winds 5 kt or less. Partly sunny. Seas around 1 ft.

Tonight

Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

Friday

SSW wind 5 to 10 kt. Mostly sunny. Seas around 1 ft.

Friday Night

SW wind around 10 kt becoming W after midnight. A chance of showers between 3am and 5am. Seas 1 to 2 ft.

Saturday

NW wind around 10 kt. Mostly sunny. Seas around 1 ft.

Saturday Night

NW wind 5 to 10 kt. Mostly clear. Seas around 1 ft.

Sunday

Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.

Sunday Night

WSW wind 5 to 10 kt. Mostly cloudy. Seas around 1 ft.

Monday

WNW wind around 10 kt. Mostly sunny. 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.