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Great South Bay wind

Great South Bay is a weather buoy near West Sayville in the Long Island Sound sailing area. Readings from NOAA NDBC.

Latest observation

Now 4 kn from SW (230°), gusting 4 kn, 2026-11-04 00:30 UTC (Tuesday 3 Nov 19:30 America/New_York). Air 15°C.

The last 24 hours

24 h: mean 8 kn, 46 readings, gust 16 kn, peak mean 14 kn, mostly WSW (239°).

Recent readings

Position 40.699, -73.087; exposure marine. Great South Bay is on open water.

Forecast against this station

Judged on the forecast published by 6 am the same morning, over the last 7 days ECMWF IFS 0.25° has had the smallest wind-speed error at Great South Bay: 1.9 kn on average across 55 hourly comparisons, against 2.3 kn for HRRR 3 km (NOAA).

Judged on the forecast published by 6 pm the evening before, over the last 7 days ECMWF IFS 0.25° has had the smallest wind-speed error at Great South Bay: 1.9 kn on average across 55 hourly comparisons, against 2.2 kn for HRRR 3 km (NOAA).

How forecasts are checked.

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Stations near Great South Bay