



Hazardous Weather Conditions
Last Update: 244 PM EDT Mon Apr 28 2025
For More Weather Information:
23NM ENE Portsmouth NH
Marine Zone Forecast
Tonight
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: SE 2 ft at 9 seconds.
Tue
S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 3 ft, building to 3 to 5 ft in the afternoon. Wave detail: S 2 ft at 3 seconds and SE 2 ft at 9 seconds, becoming S 4 ft at 4 seconds and SE 2 ft at 9 seconds.
Tue Night
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave detail: S 5 ft at 6 seconds and SE 2 ft at 9 seconds.
Wed
W winds 15 to 20 kt, becoming NW 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Wave detail: S 4 ft at 7 seconds and W 2 ft at 3 seconds.
Wed Night
NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: NW 2 ft at 3 seconds and S 2 ft at 6 seconds.
Thu
N winds around 5 kt, becoming S in the afternoon. Seas around 2 ft.
Thu Night
S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers after midnight.
Fri
S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. Showers likely.
Fri Night
S winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Seas 3 to 4 ft. A chance of showers.
Sat
SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers.
Sat Night
W winds around 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers in the evening.
Additional Forecasts and Information
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