For More Weather Information:

6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 8:17 pm EDT May 16, 2026
Forecast Valid: 10pm EDT May 16, 2026-6pm EDT May 23, 2026

Tonight

SW wind around 10 kt. A slight chance of showers between 1am and 3am. Seas around 3 ft.

Sunday

WSW wind 5 to 10 kt becoming WNW in the afternoon. Sunny. Seas 1 to 2 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 morning. Mostly sunny. Seas 1 ft or less.

Monday Night

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

Tuesday

SW wind around 10 kt. Mostly sunny. Seas around 2 ft.

Tuesday Night

SW wind around 10 kt. Partly cloudy. Seas around 2 ft.

Wednesday

WSW wind around 10 kt. Showers likely. Seas 1 to 2 ft.

Wednesday Night

WSW wind around 10 kt becoming WNW after midnight. A chance of showers. Seas 1 to 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.