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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:49 am EDT Oct 15, 2026
Forecast Valid: 6am EDT Oct 15, 2026-6pm EDT Oct 21, 2026

Today

NW wind 5 to 10 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas around 2 ft.

Tonight

Variable winds 5 kt or less. Increasing clouds. Seas around 1 ft.

Friday

SSE wind 10 to 15 kt. Showers, mainly before 4pm. Seas 1 to 2 ft.

Friday Night

SW wind 10 to 15 kt becoming WNW after midnight. Showers likely, mainly between 7pm and midnight. Seas around 3 ft.

Saturday

NW wind 10 to 15 kt. Mostly sunny. Seas around 2 ft.

Saturday Night

NW wind 5 to 10 kt. Mostly clear. Seas 1 to 2 ft.

Sunday

Variable winds 5 kt or less. Sunny. Seas around 1 ft.

Sunday Night

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

Monday

WSW wind 5 to 10 kt becoming S in the afternoon. 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.