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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:24 pm EDT Apr 8, 2026
Forecast Valid: 4pm EDT Apr 8, 2026-6pm EDT Apr 15, 2026

Tonight

SSE wind 5 to 10 kt becoming SSW after midnight. Clear. Seas 1 ft or less.

Thursday

SSW wind 5 to 8 kt becoming SSE 10 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 1 ft or less.

Thursday Night

SSW wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 25 kt. Mostly clear. Seas 1 ft or less.

Friday

S wind around 10 kt. Sunny. Seas 1 ft or less.

Friday Night

SSW wind around 10 kt becoming WSW after midnight. Winds could gust as high as 20 kt. A chance of showers. Seas 1 ft or less.

Saturday

NW wind around 10 kt, with gusts as high as 20 kt. Sunny. Seas 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Sunday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Sunday Night

SSW wind around 10 kt. Mostly cloudy. Seas 1 ft or less.

*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.