September weather forecastBilew, Poland
September
Weather in September
September, the first month of the autumn in Bilew, is still a comfortable month, with an average temperature ranging between min 11.3°C (52.3°F) and max 19.5°C (67.1°F).Temperature
The arrival of September indicates a decrease in the average high-temperature, moving from a warm 25°C (77°F) in August to a refreshing 19.5°C (67.1°F). During September nights, Bilew witnesses a consistent average temperature of 11.3°C (52.3°F).Humidity
In Bilew, Poland, the average relative humidity in September is 71%.Rainfall
In Bilew, Poland, in September, it is raining for 11.5 days, with typically 31mm (1.22") of accumulated precipitation. Throughout the year, there are 128.6 rainfall days, and 338mm (13.31") of precipitation is accumulated.Snowfall
In Bilew, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 38min.On the first day of September in Bilew, sunrise is at 05:57 and sunset at 19:30. On the last day of the month, sunrise is at 06:43 and sunset at 18:23 CEST.
Sunshine
In Bilew, the average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the UV index of 4 transforms into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bilew, Poland
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (25°C).
The month with the lowest average high temperature is January (0.2°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (15.5°C).
The coldest month (with the lowest average low temperature) is January (-3°C).
Average pressure in September
Bilew, Poland
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is October (1018.2mbar).
The month with the lowest atmospheric pressure is July (1014mbar).
Average wind speed in September
Bilew, Poland
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is December (14.9km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in September
Bilew, 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 (64%).
Average rainfall in September
Bilew, Poland
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is June (49mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Bilew, Poland
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (6 days).
Average snowfall in September
Bilew, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (56mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Bilew, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bilew, Poland
- Average daylight in September: 12h and 36min
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 54min).
- Average sunshine in September: 8h and 6min
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
Bilew, Poland
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in September
Bilew, 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, November and December (UV index 1).
Average cloud cover in September
Bilew, Poland
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Bilew, 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).





