September weather forecastSya, Sweden
September
Weather in September
September, the first month of the autumn in Sya, is still a refreshing month, with an average temperature varying between 9.3°C (48.7°F) and 15.7°C (60.3°F).Temperature
The arrival of September is marked by a minor reduction in average high-temperature, sliding from an agreeable 20.3°C (68.5°F) in August to a moderate 15.7°C (60.3°F). Throughout September, an average low-temperature of 9.3°C (48.7°F) is expected.Humidity
The average relative humidity in September in Sya, Sweden, is 80%.Rainfall
In Sya, in September, it is raining for 13.1 days, with typically 30mm (1.18") of accumulated precipitation. Throughout the year, in Sya, there are 153.9 rainfall days, and 417mm (16.42") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Sya.Daylight
In Sya, the average length of the day in September is 12h and 49min.On the first day of September, sunrise is at 05:59 and sunset at 19:58. On the last day of the month, sunrise is at 07:02 and sunset at 18:35 CEST.
Sunshine
In Sya, the average sunshine in September is 7.8h.UV index
In Sya, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 3 suggests these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sya, Sweden
- Average high temperature in September: 15.7°C
The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in September: 9.3°C
The month with the highest average low temperature is July (12.5°C).
The coldest month (with the lowest average low temperature) is February (-3.4°C).
Average pressure in September
Sya, 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
Sya, Sweden
- Average wind speed in September: 14.3km/h
The windiest month (with the highest average wind speed) is December (15.8km/h).
The calmest month (with the lowest average wind speed) is May (12.2km/h).
Average humidity in September
Sya, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Sya, Sweden
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is July (56mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Sya, Sweden
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in September
Sya, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (121mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sya, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sya, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 12min).
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
Sya, Sweden
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is April (15.3 days).
The month with the least sunshine days is December (10.2 days).
Average UV index in September
Sya, 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
Sya, Sweden
- Average cloud cover in September: 47
The months with the most cloud cover are February and December (Cloud cover 68).
The months with the least cloud cover are June and July (Cloud cover 41).
Average visibility in September
Sya, 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).
