September weather forecastSjösa, Sweden
September
Weather in September
The first month of the autumn, September, is still a mild month in Sjösa, Sweden, with an average temperature ranging between max 15.8°C (60.4°F) and min 10.5°C (50.9°F).Temperature
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a pleasant 20°C (68°F) in August to a mild 15.8°C (60.4°F). An average low-temperature of 10.5°C (50.9°F) is expected in Sjösa during September.Humidity
The average relative humidity in September is 79%.Rainfall
In September, the rain falls for 11.1 days. Throughout September, 28mm (1.1") of precipitation is accumulated. In Sjösa, during the entire year, the rain falls for 144.2 days and collects up to 380mm (14.96") of precipitation.Snowfall
June through September are months without snowfall in Sjösa.Daylight
The average length of the day in September is 12h and 49min.On the first day of September, sunrise is at 05:51 and sunset at 19:52. On the last day of the month, sunrise is at 06:55 and sunset at 18:27 CEST.
Sunshine
In Sjösa, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September in Sjösa, Sweden, is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sjösa, Sweden
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (20.6°C).
The month with the lowest average high temperature is January (0.3°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (-3°C).
Average pressure in September
Sjösa, Sweden
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008.4mbar).
Average wind speed in September
Sjösa, Sweden
- Average wind speed in September: 15.9km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is July (13.4km/h).
Average humidity in September
Sjösa, Sweden
- Average humidity in September: 79%
The months with the highest relative humidity are January, February, November and December (87%).
The months with the lowest relative humidity are May and June (73%).
Average rainfall in September
Sjösa, Sweden
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is July (55mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Sjösa, Sweden
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Sjösa, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (66mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sjösa, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sjösa, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in September
Sjösa, Sweden
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is April (15.2 days).
The month with the least sunshine days is February (11.8 days).
Average UV index in September
Sjösa, Sweden
- Average UV index in September: 3
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
Sjösa, Sweden
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are June and August (Cloud cover 37).
Average visibility in September
Sjösa, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, May, October, November and December (9km).
