Barnum Island
New York, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Barnum Island, NY

Ocean temperature

In Barnum Island, New York, the average seawater temperature in Diciembre is 48°F (8.9°C).
Note: Swimming in 48°F (8.9°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 month with the shortest days is Diciembre, with an average of 9.3h of daylight.

What is the water temperature in Diciembre in Barnum Island?

In Barnum Island, the average seawater temperature in Diciembre is 48°F (8.9°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the month with the shortest days in Barnum Island?

The month with the shortest days in Barnum Island is Diciembre, with an average of 9.3h of daylight.

How many hours of daylight does Barnum Island have in Diciembre?

In Barnum Island, the average length of the day in Diciembre is 9.3h.
Average sea temperature in December - Barnum Island, NY
  • Average sea temperature in December: 48.1°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

Average daylight in December - Barnum Island, NY
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.3h).