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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:22 pm EDT Oct 18, 2026
Forecast Valid: 11pm EDT Oct 18, 2026-6pm EDT Oct 25, 2026

Overnight

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

Monday

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

Monday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 2 to 3 ft.

Tuesday

NNE wind around 10 kt. Mostly sunny. Seas 4 to 5 ft.

Tuesday Night

NNE wind 10 to 15 kt. Partly cloudy. Seas around 5 ft.

Wednesday

NE wind 10 to 15 kt. Mostly sunny. Seas around 5 ft.

Wednesday Night

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

Thursday

Variable winds 5 kt or less. Mostly sunny. Seas around 5 ft.

Thursday Night

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