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's arrival comes with a decrease in the average high-temperature, moving from a comfortable 18.4°C (65.1°F) in August to a fresh 12.6°C (54.7°F). Älvsbyn, during September nights, observes an average temperature of 5.4°C (41.7°F).Humidity
In Älvsbyn, the average relative humidity in September is 81%.Rainfall
In Älvsbyn, in September, it is raining for 12.5 days, with typically 31mm (1.22") of accumulated precipitation. Throughout the year, in Älvsbyn, there are 125.5 rainfall days, and 432mm (17.01") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Älvsbyn.Daylight
The average length of the day in September is 13h and 5min.On the first day of the month, sunrise is at 05:14 and sunset at 19:57. On the last day of September, sunrise is at 06:44 and sunset at 18:06 CEST.
Sunshine
The average sunshine in September in Älvsbyn is 7.2h.UV index
In September, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during September leads to these advisories:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What is the usual temperature for Älvsbyn in September?
What is the average humidity in September in Älvsbyn?
How much does it rain in Älvsbyn in September?
When it does not snow in Älvsbyn?
Does it snow in Älvsbyn in September?
What is the average length of the day in September in Älvsbyn?
When is the sunrise / sunset in September in Älvsbyn?
How many hours of sunshine does Älvsbyn have in September?
How high is the UV index in September in Älvsbyn?
Average temperature in September
Älvsbyn, Sweden
- Average high temperature in September: 12.6°C
The warmest month (with the highest average high temperature) is July (20.2°C).
The month with the lowest average high temperature is January (-7.3°C).
- Average low temperature in September: 5.4°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is January (-13.1°C).
Average pressure in September
Älvsbyn, Sweden
- Average pressure in September: 1010.9mbar
The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).
Average wind speed in September
Älvsbyn, Sweden
- Average wind speed in September: 9.4km/h
The windiest month (with the highest average wind speed) is March (10.7km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in September
Älvsbyn, Sweden
- Average humidity in September: 81%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is June (63%).
Average rainfall in September
Älvsbyn, Sweden
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is February (29mm).
Average rainfall days in September
Älvsbyn, Sweden
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in September
Älvsbyn, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is December (300mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Älvsbyn, Sweden
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (19.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Älvsbyn, Sweden
- Average daylight in September: 13h and 1min
The month with the longest days is June (Average daylight: 22h and 42min).
The month with the shortest days is December (Average daylight: 3h and 24min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in September
Älvsbyn, Sweden
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is April (7.3 days).
Average UV index in September
Älvsbyn, Sweden
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Älvsbyn, Sweden
- Average cloud cover in September: 51
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 45).
Average visibility in September
Älvsbyn, Sweden
- Average visibility in September: 8km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (5km).
Älvsbyn, Sweden
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