Nantucket Sound Marine Forecast
Updated 1:03pm EDT Aug 23, 2025
Small Craft Advisory In Effect Until 7 Pm Edt This Evening
This Afternoon
S winds 10 to 15 kt with gusts up to 20 kt.
Tonight
S winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Sun
S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 12 seconds.
Sun Night
S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 11 seconds. A chance of showers after midnight.
Mon
SE winds 10 to 15 kt, becoming S in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 9 seconds. A chance of showers.
Mon Night
SW winds 10 to 15 kt, becoming W after midnight.
Tue Through Wed Night
W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
