East Setauket Weather in September

What's the weather like in East Setauket (New York) in September 2024?

The climate in East Setauket during September can be summarized as warm and a little damp.

September is in the fall / autumn in East Setauket and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (74°F), whilst at night 14°C (57°F) is normal.

East Setauket weather averages (imperial / metric)
Daytime temperature 23.5°C 74.3°F
Nightly temperature 14.1°C 57.4°F
Average temperature 18.8°C 65.8°F
Daily sunshine 8 hrs
Avg rainfall 89 mm 3.5 ins
Rainy days 8 days
Sea temperature 20.6°C 69.1°F
Humidity 75%
Windspeed 16.6kph 10 mph

On average September is the 4th driest month of the year in East Setauket with around 89mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 8 hours of sunshine per day.

September temperatures in East Setauket

East Setauket average temperature in September

September rainfall

East Setauket average rain in September

September hourly sunshine

East Setauket average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in East Setauket in September 2024.