September weather forecast and climate
Vermilion, OH

Average sea temperature in September - Vermilion, OH
  • Average sea temperature in September: 71.4°F

The best month for swimming (with the highest average sea temperature) is August (76.6°F).
The coldest month (with the lowest average sea temperature) is February (33.1°F).

Average daylight in September - Vermilion, 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).

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