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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:52 pm EST Mar 7, 2026
Forecast Valid: 12am EST Mar 8, 2026-6pm EDT Mar 14, 2026

Overnight

SW wind 10 to 15 kt. A chance of rain before 4am. Patchy fog. Seas around 5 ft.

Sunday

WSW wind around 10 kt. Areas of fog before 10am. Seas 4 to 5 ft.

Sunday Night

WSW wind around 10 kt. Mostly clear. Seas around 3 ft.

Monday

SSW wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Mostly sunny. Seas around 3 ft.

Monday Night

SW wind 5 to 10 kt. Mostly clear. Seas 2 to 3 ft.

Tuesday

Variable winds 5 kt or less. Sunny. Seas around 2 ft.

Tuesday Night

S wind 5 to 10 kt becoming E after midnight. Partly cloudy. Seas around 2 ft.

Wednesday

E wind around 10 kt becoming SE in the afternoon. A chance of rain. Seas 2 to 3 ft.

Wednesday Night

S wind 10 to 15 kt, with gusts as high as 20 kt. A chance of rain. Seas 3 ft building to 5 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.