Weather in December
Ocean temperature
In Setauket- East Setauket, New York, the average seawater temperature in December is 48.9°F (9.4°C).Note: Immersing oneself in 48.9°F (9.4°C) at sub14°F (-10°C) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Setauket- East Setauket.On the first day of the month, sunrise is at 6:58 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:34 pm EST.
Frequently asked questions
What is the water temperature in December in Setauket- East Setauket?
In Setauket- East Setauket, New York, the average seawater temperature in December is 48.9°F (9.4°C). Swimming in 48.9°F (9.4°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.
What is the month with the shortest days in Setauket- East Setauket?
With an average of 9h and 18min of daylight, December has the shortest days of the year in Setauket- East Setauket, New York.
What is the average length of the day in December in Setauket- East Setauket?
The average day length in December is 9h and 17min.
What time are sunrise and sunset in December in Setauket- East Setauket?
In December, on the first day of the month, sunrise is at 6:58 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:34 pm EST.
Average sea temperature in December
Setauket- East Setauket, NY
- Average sea temperature in December: 49°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 December
Setauket- East Setauket, NY
- Average daylight in December: 9h and 2min
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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