September weather forecastYttergran, Sweden
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Yttergran, Sweden, with temperature in the range of an average low of 9.3°C (48.7°F) and an average high of 16.2°C (61.2°F).Temperature
September's onset brings a negligible change in high-temperatures, falling from an agreeable 20.8°C (69.4°F) in August to a comfortable 16.2°C (61.2°F). The low-temperature average for Yttergran during September stands at a frosty 9.3°C (48.7°F).Humidity
The average relative humidity in September is 80%.Rainfall
In September, in Yttergran, the rain falls for 12.8 days. Throughout September, 24mm (0.94") of precipitation is accumulated. In Yttergran, during the entire year, the rain falls for 141.1 days and collects up to 377mm (14.84") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 51min.On the first day of the month, sunrise is at 05:47 and sunset at 19:52. On the last day of September, sunrise is at 06:54 and sunset at 18:25 CEST.
Sunshine
In Yttergran, Sweden, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Yttergran is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Be vigilant - A duty to shield skin and eyes from injury exists. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Yttergran, Sweden
- Average high temperature in September: 16.2°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (-0.9°C).
- Average low temperature in September: 9.3°C
The month with the highest average low temperature is July (13°C).
The coldest month (with the lowest average low temperature) is February (-4.3°C).
Average pressure in September
Yttergran, Sweden
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in September
Yttergran, Sweden
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is December (16.2km/h).
The calmest months (with the lowest average wind speed) are July and August (11.5km/h).
Average humidity in September
Yttergran, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and December (89%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Yttergran, Sweden
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is July (56mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Yttergran, Sweden
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in September
Yttergran, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (99mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Yttergran, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Yttergran, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Yttergran, Sweden
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (15.6 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in September
Yttergran, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Yttergran, Sweden
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Yttergran, Sweden
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).





