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
September is characterized by a slight reduction in average high-temperature, easing from a warm 77.5°F (25.3°C) in August to a pleasant 71.1°F (21.7°C). During September, Pompeii witnesses a consistent average low-temperature of 52.3°F (11.3°C).Humidity
In Pompeii, the average relative humidity in September is 79%.Rainfall
In Pompeii, during September, the rain falls for 11.6 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, in Pompeii, there are 141.3 rainfall days, and 22.48" (571mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Pompeii.Daylight
In September, the average length of the day in Pompeii is 12h and 29min.On the first day of the month, sunrise is at 7:03 am and sunset at 8:12 pm. On the last day of September, in Pompeii, Michigan, sunrise is at 7:35 am and sunset at 7:20 pm EDT.
Sunshine
The average sunshine in September in Pompeii is 8.1h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Pompeii?
What is the average humidity in September in Pompeii?
How much does it rain in Pompeii in September?
When it does not snow in Pompeii?
Does it snow in Pompeii in September?
What is the average length of the day in September in Pompeii?
When is the sunrise / sunset in September in Pompeii?
How many hours of sunshine does Pompeii have in September?
What is the UV index intensity in September in Pompeii?
Average temperature in September
Pompeii, MI
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in September: 52.3°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 (16.2°F).
Average pressure in September
Pompeii, 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
Pompeii, MI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Pompeii, MI
- Average humidity in September: 79%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Pompeii, MI
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in September
Pompeii, MI
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Pompeii, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Pompeii, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Pompeii, MI
- Average daylight in September: 12h and 3min
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 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Pompeii, MI
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is January (10.3 days).
Average UV index in September
Pompeii, MI
- Average UV index in September: 3
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
Pompeii, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Pompeii, 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).
Pompeii, Michigan, USA
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