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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:16 am EDT Oct 16, 2025
Forecast Valid: 10am EDT Oct 16, 2025-6pm EDT Oct 22, 2025

Today

NNW wind around 15 kt, with gusts as high as 25 kt. Increasing clouds. Seas 3 to 4 ft.

Tonight

N wind around 15 kt, with gusts as high as 25 kt. A slight chance of showers before 7pm. Seas around 3 ft.

Friday

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

Friday Night

Variable winds 5 kt or less. Mostly clear. Seas around 3 ft.

Saturday

Variable winds 5 kt or less. Sunny. Seas 3 to 4 ft.

Saturday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 4 ft.

Sunday

SSW wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. Mostly sunny. Seas 3 to 4 ft.

Sunday Night

S wind around 10 kt. A chance of showers. Seas 3 to 4 ft.

Monday

S wind 10 to 15 kt becoming WSW in the morning. Showers likely. Seas 3 to 4 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.