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9NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:17 pm EDT Jun 19, 2026
Forecast Valid: 6pm EDT Jun 19, 2026-6pm EDT Jun 26, 2026

Tonight

WSW wind around 15 kt. Mostly clear. Seas around 2 ft.

Saturday

WNW wind 10 to 15 kt. Sunny. Seas around 2 ft.

Saturday Night

W wind 5 to 10 kt. Mostly cloudy. Seas around 1 ft.

Sunday

Variable winds 5 kt or less. A chance of showers after noon. Seas around 1 ft.

Sunday Night

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

Monday

Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Showers likely, mainly after 3pm. Seas around 1 ft.

Monday Night

SSE wind around 15 kt becoming ESE after midnight. Winds could gust as high as 20 kt. Showers. Seas 2 to 3 ft.

Tuesday

NNW wind 5 to 10 kt becoming S in the afternoon. Showers likely. Seas 1 to 2 ft.

Tuesday Night

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