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
Tonka Bay's weather subtly changes with the onset of September, barely falling from a warm 78.4°F (25.8°C) in August to an agreeable 71.2°F (21.8°C). During September, an average low-temperature of 53.1°F (11.7°C) is observed.Humidity
In September, the average relative humidity is 74%.Rainfall
In Tonka Bay, during September, the rain falls for 9.4 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Tonka Bay, during the entire year, the rain falls for 99.9 days and collects up to 11.65" (296mm) of precipitation.Snowfall
In Tonka Bay, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:12 am and sunset at 6:56 pm CDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the UV index of 4 transforms into the following advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. 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 many days 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 many hours of sunshine does Tonka Bay have in September?
What is the UV index intensity in September?
Average temperature in September
Tonka Bay, MN
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (20.1°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in September
Tonka Bay, MN
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Tonka Bay, MN
- Average wind speed in September: 7.9mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Tonka Bay, MN
- Average humidity in September: 74%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and May (71%).
Average rainfall in September
Tonka Bay, MN
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is June (1.97").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in September
Tonka Bay, MN
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in September
Tonka Bay, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Tonka Bay, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Tonka Bay, MN
- 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 48min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Tonka Bay, MN
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is December (20.9 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in September
Tonka Bay, MN
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Tonka Bay, MN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Tonka Bay, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Tonka Bay, Minnesota, USA
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