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Hourly Forecast
Daylight Hours
06:39
Sunrise
18:54
Sunset
Moon
Waxing Crescent
11:28
Moonrise
20:26
Moonset
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Weather in East Setauket today, September 15, 2026
Expect a mostly clear day in East Setauket on September 15, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled.
The day peaks near 21°C and cools toward 13°C. Relative humidity sits between 48% and 73%, reaching its peak around 23:00. A lighter breeze peaks around 14:00 near 3.1 km/h.
Through the afternoon skies look more workable, with cloud near 7% around 14:00. Later outdoor plans have a clearer window than the morning may have suggested. Expect visibility around 16.1 km. Sunrise is at 06:39 and sunset at 18:54, giving 12 hours 15 minutes of sunlight today.
In short, September 15, 2026 looks like a fine day in East Setauket for being outside, peaking around 21°C.
Frequently asked questions about weather in East Setauket
How warm does it get in East Setauket?
The warmest month in East Setauket is July, with average high temperatures of 27°C. The average temperature during this period is around 24°C.
How cold does it get in East Setauket?
The coldest month in East Setauket is January, with average low temperatures of 0°C. The average temperature during this period is around 2°C.
What is the wettest time of year in East Setauket?
The wettest month in East Setauket is December, with an average of 136mm of precipitation.
What is the driest time of year in East Setauket?
The driest month in East Setauket is June, with an average of 73mm of precipitation.
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