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
September
Weather in September
Temperature
The arrival of September is marked by a minor reduction in average high-temperature, sliding from an enjoyable 19.6°C (67.3°F) in August to a still comfortable 16.3°C (61.3°F). Consistently, Älvasjö reports average nighttime temperatures of 11.5°C (52.7°F) during September, a marginal step down from its daytime highs.Humidity
In Älvasjö, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 16.8 days. Throughout September, 58mm (2.28") of precipitation is accumulated. Throughout the year, in Älvasjö, there are 186.6 rainfall days, and 602mm (23.7") of precipitation is accumulated.Snowfall
May through September are months without snowfall in Älvasjö.Daylight
The average length of the day in September is 12h and 46min.On the first day of the month, sunrise is at 06:12 and sunset at 20:04. On the last day of September, sunrise is at 07:10 and sunset at 18:45 CEST.
Sunshine
In September, the average sunshine is 7.4h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, a daily UV index of 4 turns into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Älvasjö in September?
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?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September in Älvasjö?
Average temperature in September
Älvasjö, Sweden
- Average high temperature in September: 16.3°C
The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is February (1.8°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is February (-1.3°C).
Average pressure in September
Älvasjö, Sweden
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is April (1015.3mbar).
The month with the lowest atmospheric pressure is December (1010mbar).
Average wind speed in September
Älvasjö, Sweden
- Average wind speed in September: 16.6km/h
The windiest month (with the highest average wind speed) is December (20.1km/h).
The calmest months (with the lowest average wind speed) are May, June and July (14.4km/h).
Average humidity in September
Älvasjö, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and December (87%).
The months with the lowest relative humidity are April and May (73%).
Average rainfall in September
Älvasjö, Sweden
- Average rainfall in September: 58mm
The wettest month (with the highest rainfall) is August (79mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Älvasjö, Sweden
- Average rainfall days in September: 16.8 days
The month with the highest number of rainy days is August (21.3 days).
The month with the least rainy days is February (10.5 days).
Average snowfall in September
Älvasjö, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (65mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Älvasjö, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Älvasjö, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Älvasjö, Sweden
- Average sunshine days in September: 10.2 days
The month with the most sunshine days is April (14.8 days).
The month with the least sunshine days is August (7.7 days).
Average UV index in September
Älvasjö, Sweden
- Average UV index in September: 4
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
Älvasjö, Sweden
- Average cloud cover in September: 49
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is June (Cloud cover 40).
Average visibility in September
Älvasjö, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).
