Weather in September
Ocean temperature
In September, the average ocean temperature in Setauket- East Setauket, New York, is 69.6°F (20.9°C).Note: Most people do not enjoy swimming in water of 69.6°F (20.9°C). Breathing control becomes harder as the temperature descends from 69.8°F (21°C) to 59°F (15°C).
Daylight
The average length of the day in September in Setauket- East Setauket is 12h and 27min.On the first day of September, sunrise is at 6:19 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:35 pm EDT.
Frequently asked questions
What is the ocean temperature in September in Setauket- East Setauket?
In Setauket- East Setauket, in September, the average water temperature is 69.6°F (20.9°C). For most, swimming in 69.6°F (20.9°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).
What is the average length of the day in September in Setauket- East Setauket?
In Setauket- East Setauket, New York, the average day length in September is 12h and 27min.
When is the sunrise / sunset in September in Setauket- East Setauket?
In September, on the first day of the month, sunrise is at 6:19 am and sunset at 7:24 pm. On the last day of the month, in Setauket- East Setauket, sunrise is at 6:48 am and sunset at 6:35 pm EDT.
Average sea temperature in September
Setauket- East Setauket, NY
- Average sea temperature in September: 69.6°F
The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight in September
Setauket- East Setauket, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
Setauket- East Setauket, New York, USA
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