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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:26 am EDT Apr 23, 2026
Forecast Valid: 4am EDT Apr 23, 2026-6pm EDT Apr 29, 2026

Thursday

SW wind around 10 kt becoming NW in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Seas 1 to 2 ft.

Thursday Night

NNW wind around 10 kt. Mostly clear. Seas 1 to 2 ft.

Friday

N wind 5 to 10 kt becoming SSE in the afternoon. Mostly sunny. Seas around 1 ft.

Friday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

Saturday

NNE wind 5 to 10 kt becoming ESE in the afternoon. Mostly sunny. Seas around 1 ft.

Saturday Night

Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

Sunday

N wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Seas around 1 ft.

Sunday Night

Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

Monday

NNE wind 5 to 10 kt becoming E in the afternoon. Partly sunny. 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.