September weather forecastBierniki, Poland
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Bierniki, Poland, with temperature in the range of an average low of 9.4°C (48.9°F) and an average high of 18.2°C (64.8°F).Temperature
Bierniki's progression into September includes a drop in the average high-temperature, from a moderately hot 23.9°C (75°F) in August to a comfortable 18.2°C (64.8°F). Nighttime temperatures in Bierniki consistently average a chilly 9.4°C (48.9°F) during September.Humidity
In Bierniki, the average relative humidity in September is 77%.Rainfall
In Bierniki, in September, during 13.1 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, in Bierniki, there are 156.6 rainfall days, and 459mm (18.07") of precipitation is accumulated.Snowfall
In Bierniki, Poland, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 41min.On the first day of the month, sunrise is at 05:35 and sunset at 19:15. On the last day of September, sunrise is at 06:26 and sunset at 18:04 CEST.
Sunshine
In Bierniki, Poland, the average sunshine in September is 7.2h.UV index
The average daily maximum UV index in September in Bierniki is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 3 during September leads to these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bierniki, Poland
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-1.8°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is July (13.5°C).
The coldest month (with the lowest average low temperature) is January (-5.4°C).
Average pressure in September
Bierniki, Poland
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is October (1018.1mbar).
The month with the lowest atmospheric pressure is July (1013mbar).
Average wind speed in September
Bierniki, Poland
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is December (13.4km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in September
Bierniki, Poland
- Average humidity in September: 77%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are April and August (71%).
Average rainfall in September
Bierniki, Poland
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is June (59mm).
The driest months (with the least rainfall) are February and April (25mm).
Average rainfall days in September
Bierniki, Poland
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (19.9 days).
The months with the least rainy days are January and February (7.5 days).
Average snowfall in September
Bierniki, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (155mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Bierniki, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bierniki, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in September
Bierniki, Poland
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in September
Bierniki, Poland
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Bierniki, Poland
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 80).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Bierniki, Poland
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August and September (9km).
The month with the lowest visibility is January (6km).
