September weather forecastBiala Podlaska, Poland
September
Weather in September
September, the first month of the autumn in Biala Podlaska, is still a comfortable month, with temperature in the range of an average high of 18.8°C (65.8°F) and an average low of 10.1°C (50.2°F).Temperature
The shift from August to September involves a decrease in the average high-temperature, dropping from a warm 24.7°C (76.5°F) to a refreshing 18.8°C (65.8°F). Throughout the nights in September, an average low-temperature of 10.1°C (50.2°F) is noted.Humidity
In September, the average relative humidity is 74%.Rainfall
In September, in Biala Podlaska, the rain falls for 11.7 days. Throughout September, 30mm (1.18") of precipitation is accumulated. Throughout the year, there are 144.9 rainfall days, and 439mm (17.28") of precipitation is accumulated.Snowfall
May through September are months without snowfall in Biala Podlaska.Daylight
In September, the average length of the day is 12h and 39min.On the first day of September, sunrise is at 05:40 and sunset at 19:14. On the last day of the month, sunrise is at 06:27 and sunset at 18:06 CEST.
Sunshine
In September, the average sunshine in Biala Podlaska is 7.5h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Biala Podlaska, Poland
- Average high temperature in September: 18.8°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 (-1.3°C).
- Average low temperature in September: 10.1°C
The months with the highest average low temperature are July and August (14.3°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).
Average pressure in September
Biala Podlaska, Poland
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is October (1018.6mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).
Average wind speed in September
Biala Podlaska, Poland
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Biala Podlaska, Poland
- Average humidity in September: 74%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Biala Podlaska, Poland
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is May (67mm).
The driest month (with the least rainfall) is November (20mm).
Average rainfall days in September
Biala Podlaska, Poland
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Biala Podlaska, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (164mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Biala Podlaska, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Biala Podlaska, 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: 7h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).
Average sunshine days in September
Biala Podlaska, Poland
- Average sunshine days in September: 16 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is January (7.2 days).
Average UV index in September
Biala Podlaska, 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 and December (UV index 1).
Average cloud cover in September
Biala Podlaska, Poland
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Biala Podlaska, Poland
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
