September weather forecastDunö, Sweden
September
Weather in September
September, the first month of the autumn in Dunö, is still a refreshing month, with temperature in the range of an average high of 16.7°C (62.1°F) and an average low of 11.3°C (52.3°F).Temperature
September's onset brings a negligible change in high-temperatures, falling from a pleasant 20.8°C (69.4°F) in August to an enjoyable 16.7°C (62.1°F). Dunö, in September, experiences an average temperature of 11.3°C (52.3°F) at night.Humidity
In Dunö, the average relative humidity in September is 78%.Rainfall
In Dunö, in September, during 10.3 rainfall days, 18mm (0.71") of precipitation is typically accumulated. In Dunö, Sweden, during the entire year, the rain falls for 127.2 days and collects up to 299mm (11.77") of precipitation.Snowfall
In Dunö, Sweden, snow does not fall in June through September.Daylight
The average length of the day in September in Dunö is 12h and 46min.On the first day of September, sunrise is at 05:59 and sunset at 19:50. On the last day of the month, sunrise is at 06:57 and sunset at 18:32 CEST.
Sunshine
In Dunö, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Dunö is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 4 during September translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dunö, Sweden
- Average high temperature in September: 16.7°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (1.6°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is July (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (-1.3°C).
Average pressure in September
Dunö, Sweden
- Average pressure in September: 1014.9mbar
The months with the highest atmospheric pressure are April and May (1015.4mbar).
The month with the lowest atmospheric pressure is December (1010.2mbar).
Average wind speed in September
Dunö, Sweden
- Average wind speed in September: 16.3km/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 May (14.1km/h).
Average humidity in September
Dunö, Sweden
- Average humidity in September: 78%
The months with the highest relative humidity are January, February, November and December (86%).
The months with the lowest relative humidity are April and May (71%).
Average rainfall in September
Dunö, Sweden
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is July (36mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in September
Dunö, Sweden
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in September
Dunö, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (84mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Dunö, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dunö, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in September
Dunö, Sweden
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in September
Dunö, Sweden
- Average UV index in September: 4
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
Dunö, Sweden
- Average cloud cover in September: 39
The months with the most cloud cover are January and February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Dunö, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).





