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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:19 am EDT May 3, 2026
Forecast Valid: 9am EDT May 3, 2026-6pm EDT May 9, 2026

Today

NW wind around 10 kt, with gusts as high as 20 kt. Partly sunny. Seas around 3 ft.

Tonight

WNW wind around 10 kt becoming WSW after midnight. Mostly clear. Seas around 3 ft.

Monday

SW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 3 to 4 ft.

Monday Night

SSW wind around 10 kt, with gusts as high as 20 kt. Mostly clear. Seas 3 to 4 ft.

Tuesday

SSW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 3 to 4 ft.

Tuesday Night

SSW wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas around 4 ft.

Wednesday

S wind around 15 kt, with gusts as high as 25 kt. Showers likely, mainly after 2pm. Seas around 4 ft.

Wednesday Night

SSW wind 5 to 10 kt becoming WSW after midnight. Showers. Seas 3 to 4 ft.

Thursday

Variable winds 5 kt or less. Showers likely. 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.