September weather forecastSierżniki, Poland
September weather for Sierżniki, Poland: In Sierżniki, Poland, snow does not fall in June through September. September, the first month of the autumn in Sierżniki, is also an enjoyable month, with an average temperature fluctuating between 10.6°C (51.1°F) and 19.2°C (66.6°F).
September
Weather in September
September, the first month of the autumn in Sierżniki, is also an enjoyable month, with an average temperature fluctuating between 10.6°C (51.1°F) and 19.2°C (66.6°F).Temperature
The average high-temperature decreases in September, shifting from a warm 24.8°C (76.6°F) in August to a comfortable 19.2°C (66.6°F). Throughout the month of September, the average temperature in Sierżniki dips to a cool 10.6°C (51.1°F) at night.Humidity
In September, the average relative humidity in Sierżniki is 72%.Rainfall
In Sierżniki, Poland, during September, the rain falls for 11.5 days and regularly aggregates up to 28mm (1.1") of precipitation. Throughout the year, in Sierżniki, there are 156 rainfall days, and 403mm (15.87") of precipitation is accumulated.Snowfall
In Sierżniki, snow does not fall in June through September.Daylight
In September, the average length of the day in Sierżniki is 12h and 40min.On the first day of September, sunrise is at 05:52 and sunset at 19:27. On the last day of the month, sunrise is at 06:40 and sunset at 18:19 CEST.
Sunshine
In September, the average sunshine is 8.1h.UV index
In Sierżniki, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: An average UV index of 4 in September transforms into this advice:
Be vigilant - Suggestions to stave off sun damage are provided. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sierżniki, Poland
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in September: 10.6°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in September
Sierżniki, Poland
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is October (1018mbar).
The month with the lowest atmospheric pressure is July (1013.6mbar).
Average wind speed in September
Sierżniki, Poland
- Average wind speed in September: 11.7km/h
The windiest month (with the highest average wind speed) is December (14.3km/h).
The calmest month (with the lowest average wind speed) is August (10.4km/h).
Average humidity in September
Sierżniki, 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
Sierżniki, Poland
- Average rainfall in September: 28mm
The wettest months (with the highest rainfall) are May and June (50mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Sierżniki, Poland
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9 days).
Average snowfall in September
Sierżniki, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (121mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sierżniki, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sierżniki, 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 6min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Sierżniki, Poland
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is January (9.3 days).
Average UV index in September
Sierżniki, 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
Sierżniki, Poland
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Sierżniki, Poland
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).
