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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:37 am EDT May 1, 2026
Forecast Valid: 8am EDT May 1, 2026-6pm EDT May 7, 2026

Today

W wind around 10 kt. Sunny. Seas around 3 ft.

Tonight

Variable winds 5 kt or less. A slight chance of showers after 5am. Seas around 3 ft.

Saturday

SSE wind 5 to 10 kt. A chance of showers, mainly after 8am. Seas 2 to 3 ft.

Saturday Night

S wind 5 to 10 kt becoming N after midnight. Showers likely, mainly after 4am. Seas around 3 ft.

Sunday

N wind around 10 kt becoming NW in the afternoon. Showers likely, mainly before 8am. Seas 2 to 3 ft.

Sunday Night

W wind around 10 kt. Mostly clear. Seas 3 to 4 ft.

Monday

SSW wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 3 ft.

Monday Night

SSW wind 15 to 20 kt. Mostly cloudy. Seas 3 to 4 ft.

Tuesday

S wind 20 to 23 kt increasing to 22 to 25 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. 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.