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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:52 am EDT Oct 22, 2026
Forecast Valid: 7am EDT Oct 22, 2026-6pm EDT Oct 28, 2026

Today

N wind 5 to 10 kt. Cloudy, then gradually becoming mostly sunny. Seas 5 to 6 ft.

Tonight

N wind 10 to 15 kt. Mostly clear. Seas around 5 ft.

Friday

N wind 5 to 10 kt. Sunny. Seas 4 to 5 ft.

Friday Night

Variable winds 5 kt or less. Clear. Seas around 4 ft.

Saturday

Variable winds 5 kt or less. Sunny. Seas around 3 ft.

Saturday Night

Variable winds 5 kt or less. Clear. Seas around 3 ft.

Sunday

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

Sunday Night

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

Monday

Variable winds 5 kt or less. Sunny. Seas 1 to 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.