Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island Marine Forecast

Hourly forecast at zone center

Hourly wind and waves

Gusts peak near 26kts around 9:00 AM, with waves reaching 8.3ft around 5:00 AM.

Monday, October 12

3:54 AM EDT

Wind forecast

17ktsN

Gusts:21kts

Wind forecast: 17 kts; gusts 21 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

8.0ftSSE

Period5s

Waves Now: 8.0 ft; period 5 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.02468101212AM6AM12PM6PM

NOAA marine forecast

Text forecast

Updated 1:04am EDT Oct 12, 2026

Small Craft Advisory In Effect Through This Evening

Rest Of Tonight

NE winds around 20 kt with gusts up to 25 kt.

Mon

N winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 8 ft. Wave Detail: S 8 ft at 10 seconds and N 4 ft at 5 seconds.

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 3 to 5 ft. Wave Detail: SE 4 ft at 6 seconds.

Tue Night

S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and E 2 ft at 7 seconds.

Wed

SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 7 seconds and E 2 ft at 7 seconds.

Wed Night

NW winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.

Thu And Thu Night

N winds 15 to 20 kt, becoming NE 10 to 15 kt. Seas 2 to 4 ft.

Fri

SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers likely.

Fri Night

W winds 25 to 35 kt with gusts up to 45 kt. Seas 4 to 6 ft. Showers likely.

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Interactive Mapbox map highlighting marine forecast zone ANZ256.