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

September weather forecast and climate
Belfast, ME

Ocean temperature

In Septiembre, the average ocean temperature in Belfast, Maine, is 58.3°F (14.6°C).
Note: Swimming in 58.3°F (14.6°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

In Septiembre, the average length of the day is 12.5h.

What is the ocean temperature in Septiembre in Belfast?

In Belfast, Maine, in Septiembre, the average water temperature is 58.3°F (14.6°C). Swimming in 58.3°F (14.6°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 average length of the day in Septiembre in Belfast?

The average length of the day in Septiembre in Belfast, Maine, is 12.5h.
Average sea temperature in September - Belfast, ME
  • Average sea temperature in September: 58.3°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 September - Belfast, ME
  • Average daylight in September: 12.5h

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