Weather in January
Ocean temperature
In Setauket- East Setauket, New York, in January, the average water temperature is 42.3°F (5.7°C).Note: Swimming in 42.3°F (5.7°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.
Daylight
The average length of the day in January is 9h and 38min.On the first day of January, sunrise is at 7:16 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:07 pm EST.
Updated: Jul 5, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the ocean temperature in January?
In Setauket- East Setauket, the average seawater temperature in January is 42.3°F (5.7°C). Swimming in 42.3°F (5.7°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.
How many hours of daylight does Setauket- East Setauket have in January?
The average day length in January is 9h and 38min.
What time are sunrise and sunset in January?
In January, on the first day of the month, sunrise is at 7:16 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:07 pm EST.
Average sea temperature in January
Setauket- East Setauket, NY
- Average sea temperature in January: 42.3°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 January
Setauket- East Setauket, NY
- Average daylight in January: 9h and 4min
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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