Falmouth
Massachusetts, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Falmouth, MA

Ocean temperature

In September, the average ocean temperature in Falmouth, Massachusetts, is 65.8°F (18.8°C).
Note: For swimming, a surface water temperature of 65.8°F (18.8°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

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

How cold is the water in September in Falmouth?

In September, the average ocean temperature in Falmouth is 65.8°F (18.8°C). For swimming, a surface water temperature of 65.8°F (18.8°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

How many hours of daylight does Falmouth have in September?

The average length of the day in September in Falmouth, Massachusetts, is 12.5h.
Average sea temperature in September - Falmouth, MA
  • Average sea temperature in September: 65.8°F

The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).

Average daylight in September - Falmouth, MA
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.2h).