September weather forecastRåsunda, Sweden
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Råsunda, Sweden, with temperature in the range of an average low of 9.7°C (49.5°F) and an average high of 16.1°C (61°F).Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's agreeable 20.6°C (69.1°F) to an enjoyable 16.1°C (61°F). During the nights in September, the temperature averages to a frosty 9.7°C (49.5°F).Humidity
In September, the average relative humidity is 80%.Rainfall
In Råsunda, in September, it is raining for 11.7 days, with typically 21mm (0.83") of accumulated precipitation. In Råsunda, during the entire year, the rain falls for 132.3 days and collects up to 302mm (11.89") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Råsunda, the average length of the day in September is 12h and 50min.On the first day of the month, sunrise is at 05:46 and sunset at 19:49. On the last day of September, sunrise is at 06:52 and sunset at 18:23 CEST.
Sunshine
In Råsunda, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September in Råsunda is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Råsunda, Sweden
- Average high temperature in September: 16.1°C
The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (-0.4°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is January (-3.7°C).
Average pressure in September
Råsunda, Sweden
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in September
Råsunda, Sweden
- Average wind speed in September: 14km/h
The windiest month (with the highest average wind speed) is December (18.3km/h).
The calmest months (with the lowest average wind speed) are July and August (12.4km/h).
Average humidity in September
Råsunda, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Råsunda, Sweden
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is July (39mm).
The driest months (with the least rainfall) are January and April (14mm).
Average rainfall days in September
Råsunda, Sweden
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Råsunda, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (72mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Råsunda, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Råsunda, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Råsunda, Sweden
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is April (15.1 days).
The months with the least sunshine days are February and August (12.8 days).
Average UV index in September
Råsunda, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Råsunda, Sweden
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Råsunda, Sweden
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
