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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:36 pm EDT May 15, 2026
Forecast Valid: 12am EDT May 16, 2026-6pm EDT May 22, 2026

Overnight

Variable winds 5 kt or less. Patchy dense fog. Seas around 5 ft.

Saturday

WSW wind 5 to 10 kt becoming S in the afternoon. Patchy fog before 7am. Seas 4 to 5 ft.

Saturday Night

SSW wind around 10 kt. Partly cloudy. Seas around 4 ft.

Sunday

W wind 5 to 10 kt. Sunny. Seas 2 to 3 ft.

Sunday Night

Variable winds 5 kt or less. Mostly clear. Seas around 2 ft.

Monday

Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Monday Night

S wind 5 to 10 kt becoming SSW after midnight. Mostly clear. Seas around 2 ft.

Tuesday

SW wind 5 to 10 kt. Sunny. Seas around 2 ft.

Tuesday Night

SW wind 5 to 10 kt. 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.