September weather forecastSierszew, Poland
September
Weather in September
September, the first month of the autumn in Sierszew, is still a refreshing month, with temperature in the range of an average low of 11.2°C (52.2°F) and an average high of 19.5°C (67.1°F).Temperature
The onset of September brings a small change in high-temperatures, falling from a warm 24.9°C (76.8°F) in August to a comfortable 19.5°C (67.1°F). In the month of September, the temperature in Sierszew generally rests at an average low of 11.2°C (52.2°F).Humidity
In September, the average relative humidity in Sierszew is 71%.Rainfall
In Sierszew, Poland, in September, during 10.6 rainfall days, 24mm (0.94") of precipitation is typically accumulated. In Sierszew, during the entire year, the rain falls for 141 days and collects up to 311mm (12.24") of precipitation.Snowfall
In Sierszew, snow does not fall in June through October.Daylight
The average length of the day in September in Sierszew is 12h and 39min.On the first day of September, sunrise is at 06:01 and sunset at 19:36. On the last day of the month, sunrise is at 06:49 and sunset at 18:28 CEST.
Sunshine
In September, the average sunshine is 8.4h.UV index
In Sierszew, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 4 in September translates into these instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sierszew, Poland
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).
Average pressure in September
Sierszew, Poland
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is October (1017.8mbar).
The month with the lowest atmospheric pressure is July (1014mbar).
Average wind speed in September
Sierszew, Poland
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is December (15.5km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
Sierszew, Poland
- Average humidity in September: 71%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Sierszew, Poland
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is July (41mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in September
Sierszew, Poland
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Sierszew, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (64mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Sierszew, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sierszew, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Sierszew, Poland
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Sierszew, Poland
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Sierszew, Poland
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Sierszew, Poland
- Average visibility in September: 9km
The months with the highest visibility are June and August (10km).
The month with the lowest visibility is January (7km).
