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 shift from August to September coincides with a small decrease in the average high-temperature, down to a pleasant 69.4°F (20.8°C) from a warm 77.4°F (25.2°C). During September, Manawa's temperature averages to a cool 50.9°F (10.5°C) at night.Humidity
The average relative humidity in September is 80%.Rainfall
In Manawa, in September, it is raining for 8.5 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 102.8 rainfall days, and 10.63" (270mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 6:19 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:37 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.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 radiation for ordinary individuals.Note: The maximum UV index of 3 during September translates into these guidelines:
Ensure safety - Sun damage prevention is strongly urged. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Manawa, WI
- Average high temperature in September: 69.4°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (21.9°F).
- Average low temperature in September: 50.9°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 (10.8°F).
Average pressure in September
Manawa, WI
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Manawa, WI
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in September
Manawa, WI
- Average humidity in September: 80%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Manawa, WI
- Average rainfall in September: 0.75"
The wettest months (with the highest rainfall) are May and June (1.42").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Manawa, WI
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is May (13.6 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in September
Manawa, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Manawa, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Manawa, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Manawa, WI
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is June (13.8 days).
Average UV index in September
Manawa, WI
- 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, February, November and December (UV index 1).
Average cloud cover in September
Manawa, WI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Manawa, WI
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Manawa, Wisconsin, USA
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