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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 8:17 pm EDT May 16, 2026
Forecast Valid: 9pm EDT May 16, 2026-6pm EDT May 23, 2026

Tonight

SW wind around 15 kt. A chance of showers, mainly before 2am. Seas 1 ft or less.

Sunday

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

Sunday Night

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

Monday

ESE wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. Sunny through mid morning, then becoming partly sunny. Seas 1 ft or less.

Monday Night

SSE wind around 10 kt becoming SSW after midnight. Mostly clear. Seas 1 ft or less.

Tuesday

SW wind around 10 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less.

Tuesday Night

SW wind around 10 kt. Partly cloudy. Seas 1 ft or less.

Wednesday

WSW wind around 10 kt. Showers likely. Seas 1 ft or less.

Wednesday Night

WSW wind around 10 kt becoming WNW after midnight. A chance of showers. 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.