September weather forecastCharlevoix, MI
September
Weather in September
As Charlevoix sails into September, signs of an approaching fall are imminent. Decreasing temperatures and daylight hours begin to prepare residents for the cooler season ahead. With up to 8.1hr of sunshine, balmy days are not yet a distant memory. This season-shift brings enhanced natural beauty, with rich autumnal colors flashing across the landscape. It's a time of year that's especially suited for leisurely strolls in the park or sightseeing tours around town.Temperature
September's onset in Charlevoix brings a negligible change in high-temperatures, falling from a pleasant 70°F (21.1°C) in August to a refreshing 64.4°F (18°C). Charlevoix sees an average low-temperature of 55.2°F (12.9°C) during September.Humidity
The average relative humidity in September is 78%.Rainfall
In Charlevoix, in September, it is raining for 12.7 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, in Charlevoix, there are 133 rainfall days, and 23.23" (590mm) of precipitation is accumulated.Snowfall
In Charlevoix, Michigan, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September in Charlevoix, sunrise is at 7:03 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:22 pm EDT.
Sunshine
The average sunshine in September in Charlevoix is 8.1h.UV index
In September, the average daily maximum UV index in Charlevoix is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, the UV index of 3 transforms into the following advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Charlevoix, MI
- Average high temperature in September: 64.4°F
The warmest month (with the highest average high temperature) is August (70°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is February (18.5°F).
Average pressure in September
Charlevoix, MI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Charlevoix, MI
- Average wind speed in September: 10.4mph
The windiest month (with the highest average wind speed) is December (13.8mph).
The calmest month (with the lowest average wind speed) is June (8.5mph).
Average humidity in September
Charlevoix, MI
- Average humidity in September: 78%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Charlevoix, MI
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is October (2.72").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in September
Charlevoix, MI
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is October (17.5 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Charlevoix, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Charlevoix, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Charlevoix, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 30min).
Average sunshine days in September
Charlevoix, MI
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is June (15.7 days).
The month with the least sunshine days is January (5.1 days).
Average UV index in September
Charlevoix, MI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Charlevoix, MI
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 84).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Charlevoix, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
