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
With the onset of September, Allerum experiences a modest temperature adjustment, with the average high-temperature gently receding from an agreeable 20.3°C (68.5°F) in August to a refreshing 17°C (62.6°F). In September, Allerum's nights cool slightly to a consistent average temperature of 12.5°C (54.5°F).Humidity
In September, the average relative humidity is 78%.Rainfall
In Allerum, during September, the rain falls for 14.4 days and regularly aggregates up to 34mm (1.34") of precipitation. Throughout the year, there are 167.1 rainfall days, and 386mm (15.2") of precipitation is accumulated.Snowfall
In Allerum, snow does not fall in June through October.Daylight
In September, the average length of the day in Allerum is 12h and 45min.On the first day of the month, sunrise is at 06:14 and sunset at 20:03. On the last day of September, in Allerum, sunrise is at 07:11 and sunset at 18:46 CEST.
Sunshine
In Allerum, the average sunshine in September is 7.4h.UV index
In Allerum, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Allerum?
What is the average humidity in September in Allerum?
How many days does it rain in September in Allerum?
When it does not snow in Allerum?
What is the average length of the day in September in Allerum?
When is the sunrise / sunset in September in Allerum?
How many hours of sunshine does Allerum have in September?
What is the UV index intensity in September in Allerum?
Average temperature in September
Allerum, Sweden
- Average high temperature in September: 17°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (2.4°C).
- Average low temperature in September: 12.5°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is February (-0.4°C).
Average pressure in September
Allerum, Sweden
- Average pressure in September: 1015.1mbar
The month with the highest atmospheric pressure is April (1015.5mbar).
The month with the lowest atmospheric pressure is December (1010.7mbar).
Average wind speed in September
Allerum, Sweden
- Average wind speed in September: 16.7km/h
The windiest month (with the highest average wind speed) is December (20.1km/h).
The calmest month (with the lowest average wind speed) is July (14.5km/h).
Average humidity in September
Allerum, Sweden
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (87%).
The months with the lowest relative humidity are April and May (73%).
Average rainfall in September
Allerum, Sweden
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is August (52mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Allerum, Sweden
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is February (8.7 days).
Average snowfall in September
Allerum, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (49mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Allerum, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Allerum, Sweden
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in September
Allerum, Sweden
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is April (14.9 days).
The month with the least sunshine days is December (8.6 days).
Average UV index in September
Allerum, 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
Allerum, Sweden
- Average cloud cover in September: 49
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are June and August (Cloud cover 41).
Average visibility in September
Allerum, 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).
Allerum, Sweden
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