September weather forecastŚląsko, Poland
September
Weather in September
September, the first month of the autumn in Śląsko, is still a comfortable month, with temperature in the range of an average low of 10.2°C (50.4°F) and an average high of 19.3°C (66.7°F).Temperature
September's onset brings a slight change in high-temperatures, falling from a moderately hot 25.1°C (77.2°F) in August to a refreshing 19.3°C (66.7°F). Śląsko's average low-temperature is measured at a fresh 10.2°C (50.4°F) during September.Humidity
In September, the average relative humidity in Śląsko is 72%.Rainfall
In Śląsko, in September, it is raining for 12.5 days, with typically 35mm (1.38") of accumulated precipitation. In Śląsko, during the entire year, the rain falls for 161.4 days and collects up to 490mm (19.29") of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Śląsko, Poland, is 12h and 38min.On the first day of September, sunrise is at 05:47 and sunset at 19:19. On the last day of the month, sunrise is at 06:33 and sunset at 18:13 CEST.
Sunshine
In September, the average sunshine is 8h.UV index
In September, the average daily maximum UV index in Śląsko is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Śląsko, Poland
- Average high temperature in September: 19.3°C
The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure in September
Śląsko, Poland
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is October (1018.8mbar).
The month with the lowest atmospheric pressure is July (1014.1mbar).
Average wind speed in September
Śląsko, Poland
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is December (12.6km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).
Average humidity in September
Śląsko, Poland
- Average humidity in September: 72%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Śląsko, Poland
- Average rainfall in September: 35mm
The wettest months (with the highest rainfall) are May and July (63mm).
The driest month (with the least rainfall) is November (27mm).
Average rainfall days in September
Śląsko, Poland
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Śląsko, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (149mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Śląsko, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Śląsko, Poland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
Śląsko, Poland
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is January (8.1 days).
Average UV index in September
Śląsko, Poland
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Śląsko, Poland
- Average cloud cover in September: 40
The months with the most cloud cover are January and February (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Śląsko, Poland
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
