Seaford
New York, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Seaford, NY

Ocean temperature

In Diciembre, the average ocean temperature in Seaford, 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

With an average of 9.3h of daylight, Diciembre has the shortest days of the year.

How cold is the water in Diciembre in Seaford?

In Seaford, New York, in Diciembre, the average water temperature is 48°F (8.9°C). Swimming in 48°F (8.9°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the month with the shortest days in Seaford?

With an average of 9.3h of daylight, Diciembre has the shortest days of the year.

What is the average length of the day in Diciembre in Seaford?

The average length of the day in Diciembre in Seaford is 9.3h.
Average sea temperature in December - Seaford, 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 - Seaford, 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).