Belfast
Maine, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Belfast, ME

Ocean temperature

In Belfast, Maine, the average seawater temperature in Diciembre is 45.1°F (7.3°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 8.9h of daylight, Diciembre has the shortest days of the year in Belfast.

What is the water temperature in Diciembre in Belfast?

In Belfast, Maine, the average seawater temperature in Diciembre is 45.1°F (7.3°C). Swimming in 45.1°F (7.3°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 Belfast?

The month with the shortest days is Diciembre, with an average of 8.9h of daylight.

How many hours of daylight does Belfast have in Diciembre?

In Belfast, the average length of the day in Diciembre is 8.9h.
Average sea temperature in December - Belfast, ME
  • Average sea temperature in December: 45°F

The best month for swimming (with the highest average sea temperature) is August (60.4°F).
The coldest month (with the lowest average sea temperature) is March (37.8°F).

Average daylight in December - Belfast, ME
  • Average daylight in December: 8.9h

The month with the longest days is June (Average daylight: 15.5h).
The month with shortest days is December (Average daylight: 8.9h).