Dartmouth
Canada
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Dartmouth, Canada

Sea temperature

In Dartmouth, Canada, in September, the average water temperature is 16.6°C (61.9°F).
Note: For swimming, a surface water temperature of 16.6°C (61.9°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

In Dartmouth, Canada, the average length of the day in September is 12.5h.

What is the sea temperature in September in Dartmouth?

In Dartmouth, in September, the average water temperature is 16.6°C (61.9°F). Swimming in 16.6°C (61.9°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the average length of the day in September in Dartmouth?

The average length of the day in September in Dartmouth, Canada, is 12.5h.
Average sea temperature in September - Dartmouth, Canada
  • Average sea temperature in September: 16.6°C

The best month for swimming (with the highest average sea temperature) is August (17.2°C).
The coldest month (with the lowest average sea temperature) is February (0.8°C).

Average daylight in September - Dartmouth, Canada
  • 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).