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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:23 pm EDT Oct 12, 2026
Forecast Valid: 8pm EDT Oct 12, 2026-6pm EDT Oct 19, 2026

Tonight

NNW wind 5 to 8 kt becoming ENE 10 to 15 kt after midnight. Rain likely, mainly after 3am. Seas 2 to 3 ft.

Tuesday

ENE wind around 10 kt becoming SE in the afternoon. Rain. Seas around 3 ft.

Tuesday Night

S wind 5 to 10 kt becoming WSW after midnight. Rain, mainly before 1am. Seas around 3 ft.

Wednesday

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

Wednesday Night

NW wind 5 to 10 kt. Partly cloudy. Seas 2 to 3 ft.

Thursday

NNW wind 5 to 10 kt. Sunny. Seas 1 to 2 ft.

Thursday Night

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

Friday

S wind 5 to 8 kt increasing to 7 to 10 kt in the morning. Showers. Seas 1 to 2 ft.

Friday Night

W wind 10 to 15 kt increasing to 15 to 20 kt after midnight. Showers likely. Seas around 3 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.