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9NM ESE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:57 pm EDT Jul 6, 2025
Forecast Valid: 7pm EDT Jul 6, 2025-6pm EDT Jul 13, 2025

Tonight

SW wind around 10 kt. Mostly clear. Seas 2 to 3 ft.

Monday

SW wind 10 to 15 kt becoming S in the afternoon. Mostly sunny. Seas around 2 ft.

Monday Night

SSW wind 10 to 15 kt. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Seas 2 to 3 ft.

Tuesday

SSW wind 5 to 10 kt becoming E in the afternoon. Showers likely and possibly a thunderstorm, mainly after 2pm. Seas 1 to 2 ft.

Tuesday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Seas 1 to 2 ft.

Wednesday

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

Wednesday Night

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

Thursday

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

Thursday Night

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

Winds and seas higher in and near tstms.

*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.