Weather in September
Ocean temperature
In Grosse Ile Township, Michigan, the average seawater temperature in September is 70.5°F (21.4°C).Note: For most, swimming in 70.5°F (21.4°C) is not a pleasant activity. Breathing becomes increasingly challenging as water temperature descends from 69.8°F (21°C) to 59°F (15°C).
Daylight
The average length of the day in September in Grosse Ile Township is 12h and 28min.On the first day of September, sunrise is at 6:58 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:15 pm EDT.
Frequently asked questions
What is the ocean temperature in September in Grosse Ile Township?
In Grosse Ile Township, Michigan, the average seawater temperature in September is 70.5°F (21.4°C). For swimming, a surface water temperature of 70.5°F (21.4°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 Grosse Ile Township have in September?
In Grosse Ile Township, the average day length in September is 12h and 28min.
When is the sunrise / sunset in September in Grosse Ile Township?
On the first day of September in Grosse Ile Township, sunrise is at 6:58 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:15 pm EDT.
Average sea temperature in September
Grosse Ile Township, MI
- Average sea temperature in September: 70.6°F
The best month for swimming (with the highest average sea temperature) is August (75.4°F).
The coldest month (with the lowest average sea temperature) is February (32.7°F).
Average daylight in September
Grosse Ile Township, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
Grosse Ile Township, Michigan, USA
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