September weather forecastSand Lake, MI
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Sand Lake, Michigan, with an average temperature varying between 71.8°F (22.1°C) and 52.7°F (11.5°C).Temperature
September heralds a minor drop in average high-temperature, sliding from August's warm 78.3°F (25.7°C) to a pleasant 71.8°F (22.1°C). During the nights in September, an average low-temperature of 52.7°F (11.5°C) is observed in Sand Lake.Humidity
In September, the average relative humidity in Sand Lake is 78%.Rainfall
In Sand Lake, in September, it is raining for 10.4 days, with typically 1.26" (32mm) of accumulated precipitation. In Sand Lake, Michigan, during the entire year, the rain falls for 133.1 days and collects up to 22.05" (560mm) of precipitation.Snowfall
In Sand Lake, snow does not fall in May through September.Daylight
In Sand Lake, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 7:07 am and sunset at 8:16 pm. On the last day of September, in Sand Lake, sunrise is at 7:39 am and sunset at 7:24 pm EDT.
Sunshine
In September, the average sunshine is 8.1h.UV index
In September, the average daily maximum UV index in Sand Lake is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sand Lake, MI
- Average high temperature in September: 71.8°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in September
Sand Lake, MI
- Average pressure in September: 30.03"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
Sand Lake, MI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in September
Sand Lake, MI
- Average humidity in September: 78%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Sand Lake, MI
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is November (1.22").
Average rainfall days in September
Sand Lake, MI
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Sand Lake, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.69").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Sand Lake, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sand Lake, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in September
Sand Lake, MI
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Sand Lake, MI
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Sand Lake, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Sand Lake, MI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, September and December (5mi).





