Conneaut
Ohio, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Conneaut, OH

Ocean temperature

In Conneaut, Ohio, the average seawater temperature in September is 70.3°F (21.3°C).
Note: For swimming, a surface water temperature of 70.3°F (21.3°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 September, the average length of the day is 12.5h.

How cold is the water in September in Conneaut?

In September, the average ocean temperature is 70.3°F (21.3°C). For most, swimming in 70.3°F (21.3°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

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

In September, the average length of the day in Conneaut, Ohio, is 12.5h.
Average sea temperature in September - Conneaut, OH
  • Average sea temperature in September: 70.3°F

The best month for swimming (with the highest average sea temperature) is August (75.7°F).
The coldest month (with the lowest average sea temperature) is February (32.7°F).

Average daylight in September - Conneaut, OH
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).