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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:33 pm EDT May 9, 2026
Forecast Valid: 4pm EDT May 9, 2026-6pm EDT May 16, 2026

Late Afternoon

ESE wind around 10 kt. Rain. Seas around 2 ft.

Tonight

S wind 10 to 15 kt, with gusts as high as 20 kt. Showers, mainly before midnight. Seas around 3 ft.

Sunday

S wind around 10 kt. A chance of showers, mainly after 3pm. Seas around 2 ft.

Sunday Night

SSW wind 5 to 10 kt becoming WNW after midnight. A chance of showers, mainly between 1am and 2am. Seas around 2 ft.

Monday

Variable winds 5 kt or less. A chance of showers between 11am and 2pm. Seas around 2 ft.

Monday Night

SW wind 5 to 10 kt becoming NNW after midnight. Partly cloudy. Seas around 2 ft.

Tuesday

NNW wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas 1 to 2 ft.

Tuesday Night

W wind 5 to 10 kt becoming NW in the evening. Partly cloudy. Seas 1 to 2 ft.

Wednesday

SSE wind 5 to 8 kt increasing to 7 to 10 kt in the afternoon. A chance of showers. Seas around 1 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.