September weather forecastAlsen, Sweden
September
Weather in September
The first month of the autumn, September, is also a fresh month in Alsen, Sweden, with an average temperature varying between 12.3°C (54.1°F) and 5.5°C (41.9°F).Temperature
Alsen's September weather comes with a decrease in average high-temperatures, moving from an enjoyable 17.3°C (63.1°F) in August to a fresh 12.3°C (54.1°F). September nights in Alsen observe an average temperature dip to an icy 5.5°C (41.9°F).Humidity
In September, the average relative humidity is 80%.Rainfall
In Alsen, Sweden, in September, it is raining for 13.6 days, with typically 38mm (1.5") of accumulated precipitation. Throughout the year, there are 119.1 rainfall days, and 401mm (15.79") of precipitation is accumulated.Snowfall
In Alsen, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 59min.On the first day of the month, sunrise is at 05:50 and sunset at 20:17. On the last day of September, sunrise is at 07:11 and sunset at 18:37 CEST.
Sunshine
The average sunshine in September is 7.3h.UV index
In Alsen, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in September converts into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. When the Sun is at its strongest around midday, find shade and limit exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Alsen, Sweden
- Average high temperature in September: 12.3°C
The warmest month (with the highest average high temperature) is July (18.8°C).
The month with the lowest average high temperature is January (-5.3°C).
- Average low temperature in September: 5.5°C
The month with the highest average low temperature is July (9.6°C).
The coldest month (with the lowest average low temperature) is February (-9.9°C).
Average pressure in September
Alsen, Sweden
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1005.7mbar).
Average wind speed in September
Alsen, Sweden
- Average wind speed in September: 12.6km/h
The windiest month (with the highest average wind speed) is June (14.3km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
Alsen, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is June (67%).
Average rainfall in September
Alsen, Sweden
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is July (53mm).
The driest months (with the least rainfall) are February and April (20mm).
Average rainfall days in September
Alsen, Sweden
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Alsen, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (211mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Alsen, Sweden
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Alsen, Sweden
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 18min).
The month with the shortest days is December (Average daylight: 4h and 48min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in September
Alsen, Sweden
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is December (12.2 days).
Average UV index in September
Alsen, Sweden
- Average UV index in September: 2
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Alsen, Sweden
- Average cloud cover in September: 51
The months with the most cloud cover are January and February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 45).
Average visibility in September
Alsen, Sweden
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January and February (7km).
