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 commencement of September indicates a gentle shift in the average high-temperature, receding from August's agreeable 21.3°C (70.3°F) to an enjoyable 16.5°C (61.7°F). Nighttime temperature dips to a mean of 8.8°C (47.8°F) during September.Humidity
In September, the average relative humidity in Flen is 80%.Rainfall
In Flen, during September, the rain falls for 12.4 days and regularly aggregates up to 27mm (1.06") of precipitation. In Flen, during the entire year, the rain falls for 140.4 days and collects up to 387mm (15.24") of precipitation.Snowfall
In Flen, snow does not fall in June through September.Daylight
The average length of the day in September in Flen is 12h and 50min.On the first day of September, sunrise is at 05:52 and sunset at 19:54. On the last day of the month, sunrise is at 06:57 and sunset at 18:29 CEST.
Sunshine
In September, the average sunshine in Flen is 7.8h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 3 in September leads to these guidelines:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Flen?
What is the average humidity in September in Flen?
How many days does it rain in September in Flen?
When it does not snow in Flen?
Does it snow in Flen in September?
How many hours of daylight does Flen have in September?
When is the sunrise / sunset in September in Flen?
How many hours of sunshine does Flen have in September?
How high is the UV index in September in Flen?
Average temperature in September
Flen, Sweden
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (22.4°C).
The month with the lowest average high temperature is January (-0.8°C).
- Average low temperature in September: 8.8°C
The month with the highest average low temperature is July (12.4°C).
The coldest months (with the lowest average low temperature) are January and February (-4.6°C).
Average pressure in September
Flen, Sweden
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).
Average wind speed in September
Flen, Sweden
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is December (14km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in September
Flen, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February, November and December (90%).
The months with the lowest relative humidity are May and June (70%).
Average rainfall in September
Flen, Sweden
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is July (57mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Flen, Sweden
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in September
Flen, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (112mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Flen, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Flen, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in September
Flen, Sweden
- Average sunshine days in September: 15 days
The month with the most sunshine days is October (17 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in September
Flen, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Flen, Sweden
- Average cloud cover in September: 47
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is June (Cloud cover 42).
Average visibility in September
Flen, Sweden
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January and February (7km).
Flen, Sweden
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