



Hazardous Weather Conditions
Last Update: 150 AM EDT Sun Aug 24 2025
For More Weather Information:
25NM ENE Portsmouth NH
Marine Zone Forecast
Rest Of Tonight
SW winds 15 to 20 kt, becoming S 10 to 15 kt towards daybreak. Seas 5 to 7 ft. Wave detail: S 5 ft at 5 seconds and E 5 ft at 11 seconds.
Sun
S winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 6 ft. Wave detail: E 5 ft at 11 seconds.
Sun Night
S winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. Wave detail: SE 4 ft at 5 seconds and E 3 ft at 11 seconds. Patchy fog after midnight with vsby 1 to 3 nm.
Mon
SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: SE 3 ft at 6 seconds and E 2 ft at 10 seconds. Patchy fog in the morning. A chance of showers. Vsby 1 to 3 nm in the morning.
Mon Night
S winds 5 to 10 kt, becoming W after midnight. Seas 3 to 5 ft. Wave detail: SE 4 ft at 8 seconds. A chance of showers in the evening.
Tue
W winds around 10 kt. Seas 3 to 5 ft. Wave detail: SE 4 ft at 8 seconds.
Tue Night
W winds 5 to 10 kt. Seas 2 to 4 ft.
Wed
W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft.
Wed Night
SW winds 5 to 10 kt, becoming W after midnight. Seas around 3 ft.
Thu
W winds 5 to 10 kt, becoming S with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft.
Thu Night
SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...