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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:52 pm EDT Jun 12, 2026
Forecast Valid: 2am EDT Jun 13, 2026-6pm EDT Jun 19, 2026

Saturday

WNW wind 5 to 10 kt. Sunny. Seas around 1 ft.

Saturday Night

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

Sunday

SW wind 5 to 8 kt becoming S 10 to 15 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Sunday Night

SSW wind 15 to 20 kt. Showers, mainly after 10pm. Seas around 3 ft.

Monday

W wind 5 to 10 kt. Showers, mainly before 8am. Seas 1 to 2 ft.

Monday Night

WNW wind 5 to 10 kt. Partly cloudy. Seas around 1 ft.

Tuesday

WNW wind 5 to 10 kt becoming S in the afternoon. Mostly sunny. Seas around 1 ft.

Tuesday Night

S wind 5 to 10 kt becoming WSW after midnight. Partly cloudy. Seas around 1 ft.

Wednesday

WSW wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. Sunny. 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.