Port Washington
New York, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Port Washington, NY

Ocean temperature

In December, the average ocean temperature in Port Washington, New York, is 48°F (8.9°C).
Note: 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.

Daylight

The month with the shortest days in Port Washington is December, with an average of 9.3h of daylight.

How cold is the water in December in Port Washington?

In Port Washington, the average seawater temperature in December 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 Port Washington?

With an average of 9.3h of daylight, December has the shortest days of the year in Port Washington, New York.

How many hours of daylight does Port Washington have in December?

In Port Washington, the average length of the day in December is 9.3h.
Average sea temperature in December - Port Washington, 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 - Port Washington, NY
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).