September weather forecastRök, Sweden
September
Weather in September
September, the first month of the autumn in Rök, is also a moderate month, with temperature in the range of an average high of 15.4°C (59.7°F) and an average low of 10.1°C (50.2°F).Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a comfortable 19.2°C (66.6°F) in August to a mild 15.4°C (59.7°F). Rök's average low-temperature for the month of September records at a cool 10.1°C (50.2°F).Humidity
The average relative humidity in September is 80%.Rainfall
In Rök, in September, during 9.8 rainfall days, 15mm (0.59") of precipitation is typically accumulated. Throughout the year, there are 112.6 rainfall days, and 215mm (8.46") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Rök.Daylight
In September, the average length of the day is 12h and 49min.On the first day of the month, sunrise is at 06:01 and sunset at 20:00. On the last day of September, sunrise is at 07:04 and sunset at 18:37 CEST.
Sunshine
The average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 3 during September leads to these advisories:
Undertake protective steps - Recommendations to avoid sunburn are issued. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rök, Sweden
- Average high temperature in September: 15.4°C
The warmest month (with the highest average high temperature) is July (19.9°C).
The month with the lowest average high temperature is January (-0.1°C).
- Average low temperature in September: 10.1°C
The months with the highest average low temperature are July and August (13°C).
The coldest month (with the lowest average low temperature) is February (-2.8°C).
Average pressure in September
Rök, Sweden
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in September
Rök, Sweden
- Average wind speed in September: 16.1km/h
The windiest month (with the highest average wind speed) is December (18.3km/h).
The calmest month (with the lowest average wind speed) is May (13.2km/h).
Average humidity in September
Rök, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and December (88%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Rök, Sweden
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is July (34mm).
The driest month (with the least rainfall) is April (7mm).
Average rainfall days in September
Rök, Sweden
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in September
Rök, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (49mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Rök, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Rök, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Rök, Sweden
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is April (18.3 days).
The month with the least sunshine days is July (13.6 days).
Average UV index in September
Rök, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Rök, Sweden
- Average cloud cover in September: 47
The months with the most cloud cover are February and December (Cloud cover 68).
The month with the least cloud cover is June (Cloud cover 40).
Average visibility in September
Rök, Sweden
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).





