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 mild reduction in the average high-temperature, from a pleasant 70°F (21.1°C) in August to an enjoyable 62.4°F (16.9°C). The mean low-temperature during September nights is a cool 50.4°F (10.2°C).Humidity
The average relative humidity in September is 80%.Rainfall
In September, in Finland, the rain falls for 12.8 days. Throughout September, 2.09" (53mm) of precipitation is accumulated. In Finland, Minnesota, during the entire year, the rain falls for 130 days and collects up to 22.13" (562mm) of precipitation.Snowfall
In Finland, snow does not fall in June through September.Daylight
In Finland, the average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:44 pm. On the last day of September, in Finland, sunrise is at 7:03 am and sunset at 6:45 pm CDT.
Sunshine
The average sunshine in September in Finland is 8.8h.UV index
In Finland, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 3 in September suggests the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Finland in September?
What is the average humidity in September in Finland?
How many days does it rain in September in Finland?
When it does not snow in Finland?
Does it snow in Finland in September?
What is the average length of the day in September in Finland?
When are sunrise and sunset in September in Finland?
How long on average sun shines in September in Finland?
What is the UV index intensity in September in Finland?
Average temperature in September
Finland, MN
- Average high temperature in September: 62.4°F
The warmest month (with the highest average high temperature) is August (70°F).
The month with the lowest average high temperature is January (18.1°F).
- Average low temperature in September: 50.4°F
The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is January (7.2°F).
Average pressure in September
Finland, MN
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Finland, MN
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in September
Finland, MN
- Average humidity in September: 80%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Finland, MN
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is July (2.83").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in September
Finland, MN
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in September
Finland, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Finland, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Finland, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Finland, MN
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is December (12 days).
Average UV index in September
Finland, MN
- Average UV index in September: 3
The months with the highest UV index are 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
Finland, MN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in September
Finland, MN
- Average visibility in September: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
Finland, Minnesota, USA
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