Block Island Sound Marine Forecast

Hourly forecast at zone center

Hourly wind and waves

Gusts peak near 30kts around 9:00 PM, with waves reaching 4.0ft around 11:00 PM.

Sunday, October 11

7:07 AM EDT

Wind forecast

12ktsESE

Gusts:15kts

Wind forecast: 12 kts; gusts 15 kts. Use left and right arrows to inspect hours; Escape to reset.

Hourly wind speed and gust forecastSustained wind is shown in cyan and gusts in blue-gray. Dashed lines show past conditions. Direction arrows show where the wind is traveling.01020304012AM6AM12PM6PM

Waves Now

2.1ftSE

Period3s

Waves Now: 2.1 ft; period 3 seconds. Use left and right arrows to inspect hours; Escape to reset.

Hourly wave height and period forecastWave height is shown in blue. The dashed line shows past conditions. Direction arrows show where the waves are traveling.024612AM6AM12PM6PM

NOAA marine forecast

Text forecast

Updated 7:04am EDT Oct 11, 2026

Small Craft Advisory In Effect From This Evening Through Monday Evening

Today

SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SE 2 ft at 4 seconds.

Tonight

E winds 15 to 20 kt, becoming NE after midnight. Gusts up to 30 kt. Seas 2 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SE 4 ft at 8 seconds and SE 2 ft at 5 seconds, becoming S 6 ft at 10 seconds and E 3 ft at 4 seconds.

Mon

NE winds 15 to 20 kt, becoming N 10 to 15 kt in the afternoon. Seas 5 to 8 ft. Wave Detail: S 8 ft at 11 seconds and NE 3 ft at 4 seconds. Patchy fog in the morning. A chance of showers in the morning with vsby 1 to 3 NM.

Mon Night

N winds 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 9 seconds and NE 2 ft at 5 seconds.

Tue

E winds around 10 kt, becoming S in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and NE 2 ft at 4 seconds.

Tue Night

S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 4 seconds. A chance of showers after midnight.

Wed

W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers.

Wed Night And Thu

NW winds 10 to 15 kt with gusts up to 20 kt.

Thu Night

NE winds around 10 kt. Seas around 2 ft.

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Interactive Mapbox map highlighting marine forecast zone ANZ237.