Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September brings an average high-temperature of an agreeable 71.4°F (21.9°C), subtly diverging from August's 76.6°F (24.8°C). Throughout the month of September, Grand Beach sees a steady low-temperature average of 59.2°F (15.1°C).Humidity
In Grand Beach, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 13.4 days. Throughout September, 2.28" (58mm) of precipitation is accumulated. In Grand Beach, during the entire year, the rain falls for 152.6 days and collects up to 26.3" (668mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In Grand Beach, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 7:13 am and sunset at 8:20 pm. On the last day of September, sunrise is at 7:43 am and sunset at 7:30 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In Grand Beach, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Grand Beach have in September?
What is the UV index reading in September?
Average temperature in September
Grand Beach, MI
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Grand Beach, MI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Grand Beach, MI
- Average wind speed in September: 9.1mph
The windiest month (with the highest average wind speed) is January (12.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in September
Grand Beach, MI
- Average humidity in September: 78%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Grand Beach, MI
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Grand Beach, MI
- Average rainfall days in September: 13.4 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (6 days).
Average snowfall in September
Grand Beach, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.6").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Grand Beach, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grand Beach, 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).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Grand Beach, MI
- Average sunshine days in September: 13 days
The month with the most sunshine days is March (14.4 days).
The month with the least sunshine days is January (10 days).
Average UV index in September
Grand Beach, MI
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Grand Beach, MI
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Grand Beach, MI
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Grand Beach, Michigan, USA
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