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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:22 pm EDT Mar 25, 2026
Forecast Valid: 3pm EDT Mar 25, 2026-6pm EDT Apr 1, 2026

This Afternoon

SSW wind around 10 kt. Mostly sunny. Seas around 3 ft.

Tonight

SSW wind 10 to 15 kt. A slight chance of rain before 1am, then a chance of rain after 2am. Seas around 3 ft.

Thursday

SW wind 10 to 15 kt. A chance of rain, mainly before 10am. Seas around 3 ft.

Thursday Night

SW wind around 10 kt becoming W after midnight. Rain, mainly after 8pm. Seas 3 to 4 ft.

Friday

N wind around 10 kt. Showers likely, mainly before 9am. Seas around 2 ft.

Friday Night

N wind 5 to 10 kt. Partly cloudy. Seas around 2 ft.

Saturday

N wind 5 to 10 kt becoming NE in the afternoon. Mostly sunny. Seas around 2 ft.

Saturday Night

Variable winds 5 kt or less. Mostly clear. Seas around 2 ft.

Sunday

WSW wind around 10 kt. Mostly sunny. 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.