Port Clinton
Ohio, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Port Clinton, OH

Ocean temperature

In Port Clinton, Ohio, in September, the average water temperature is 71.2°F (21.8°C).
Note: For swimming, a surface water temperature of 71.2°F (21.8°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

The average length of the day in September is 12.5h.

What is the ocean temperature in September in Port Clinton?

In September, the average ocean temperature in Port Clinton is 71.2°F (21.8°C). For swimming, a surface water temperature of 71.2°F (21.8°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).

What is the average length of the day in September in Port Clinton?

In September, the average length of the day in Port Clinton, Ohio, is 12.5h.
Average sea temperature in September - Port Clinton, OH
  • Average sea temperature in September: 71.3°F

The best month for swimming (with the highest average sea temperature) is July (76.6°F).
The coldest month (with the lowest average sea temperature) is February (32.3°F).

Average daylight in September - Port Clinton, OH
  • 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).