Harvey
Michigan, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Harvey, MI

Average sea temperature in September - Harvey, MI
  • Average sea temperature in September: 62.1°F

The best month for swimming (with the highest average sea temperature) is August (64.3°F).
Coldest months (with the lowest average sea temperature) are February and March (33.7°F).

Average daylight in September - Harvey, MI
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.8h).
The month with shortest days is December (Average daylight: 8.7h).