September weather forecastKoskullskulle, Sweden
September
Weather in September
The first month of the autumn, September, is also a fresh month in Koskullskulle, Sweden, with an average temperature ranging between min 3.8°C (38.8°F) and max 10.1°C (50.2°F).Temperature
The onset of September results in a decrease in the average high-temperature, receding from a mild 15.6°C (60.1°F) in August to a cool 10.1°C (50.2°F). During September in Koskullskulle, the average low-temperature is recorded at a wintry 3.8°C (38.8°F).Humidity
In September, the average relative humidity is 83%.Rainfall
In September, in Koskullskulle, the rain falls for 14.8 days. Throughout September, 46mm (1.81") of precipitation is accumulated. In Koskullskulle, during the entire year, the rain falls for 111.3 days and collects up to 432mm (17.01") of precipitation.Snowfall
January through June, September through December are months with snowfall in Koskullskulle, Sweden. September is the first month it typically snows. Throughout September, in the average 2.1 snowfall days, it receives 29mm (1.14") of snow. In Koskullskulle, during the entire year, snow falls for 129.7 days and aggregates up to 1268mm (49.92") of snow.Daylight
The average length of the day in September in Koskullskulle is 13h and 10min.On the first day of the month, sunrise is at 05:09 and sunset at 20:04. On the last day of September, sunrise is at 06:47 and sunset at 18:06 CEST.
Sunshine
In Koskullskulle, the average sunshine in September is 6.3h.UV index
In Koskullskulle, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 2 transforms into these recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Koskullskulle, Sweden
- Average high temperature in September: 10.1°C
The warmest month (with the highest average high temperature) is July (17.5°C).
The month with the lowest average high temperature is January (-9.3°C).
- Average low temperature in September: 3.8°C
The month with the highest average low temperature is July (9.6°C).
The coldest months (with the lowest average low temperature) are January and February (-14.8°C).
Average pressure in September
Koskullskulle, Sweden
- Average pressure in September: 1010.3mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1004.4mbar).
Average wind speed in September
Koskullskulle, Sweden
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is March (13.4km/h).
The calmest months (with the lowest average wind speed) are August and November (11km/h).
Average humidity in September
Koskullskulle, Sweden
- Average humidity in September: 83%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is June (65%).
Average rainfall in September
Koskullskulle, Sweden
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is July (70mm).
The driest month (with the least rainfall) is March (21mm).
Average rainfall days in September
Koskullskulle, Sweden
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Koskullskulle, Sweden
- Average snowfall in September: 29mm
The month with the highest snowfall is December (223mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Koskullskulle, Sweden
- Average snowfall days in September: 2.1 days
The month with the highest number of snowfall days is December (20.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Koskullskulle, Sweden
- Average daylight in September: 13h and 12min
The month with the longest days is May (Average daylight: 20h and 12min).
The month with the shortest days is June (Average daylight: 0h and 0min).
- Average sunshine in September: 6h and 18min
The month with the most sunshine is August (Average sunshine: 8h and 48min).
The month with the least sunshine is June (Average sunshine: 0h and 36min).
Average sunshine days in September
Koskullskulle, Sweden
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is November (14.3 days).
The month with the least sunshine days is April (9.5 days).
Average UV index in September
Koskullskulle, Sweden
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, March, April, November and December (UV index 1).
Average cloud cover in September
Koskullskulle, Sweden
- Average cloud cover in September: 58
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 51).
Average visibility in September
Koskullskulle, Sweden
- Average visibility in September: 8km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and April (6km).





