September weather forecastŚwiętne, Poland
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Świętne, Poland, with an average temperature fluctuating between 19.2°C (66.6°F) and 11.1°C (52°F).Temperature
September indicates a shift in the average high-temperature, from August's warm 24.7°C (76.5°F) to a refreshing 19.2°C (66.6°F). Throughout September, Świętne experiences a low-temperature average of 11.1°C (52°F).Humidity
The average relative humidity in September in Świętne is 71%.Rainfall
In Świętne, Poland, in September, it is raining for 10.5 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, in Świętne, there are 140.2 rainfall days, and 307mm (12.09") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Świętne.Daylight
The average length of the day in September is 12h and 40min.On the first day of September in Świętne, sunrise is at 05:59 and sunset at 19:35. On the last day of the month, sunrise is at 06:47 and sunset at 18:26 CEST.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index in Świętne, Poland, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 in September translates into this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Świętne, Poland
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (24.7°C).
The month with the lowest average high temperature is January (0.5°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).
Average pressure in September
Świętne, Poland
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is October (1017.8mbar).
The month with the lowest atmospheric pressure is July (1013.9mbar).
Average wind speed in September
Świętne, Poland
- Average wind speed in September: 12.4km/h
The windiest month (with the highest average wind speed) is December (15.2km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in September
Świętne, Poland
- Average humidity in September: 71%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Świętne, Poland
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is June (42mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in September
Świętne, Poland
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (7.6 days).
Average snowfall in September
Świętne, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (71mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Świętne, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Świętne, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Świętne, Poland
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in September
Świętne, 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
Świętne, Poland
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Świętne, Poland
- Average visibility in September: 9km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, November and December (8km).





