September weather forecastSąpolnica, Poland
September
Weather in September
September, the first month of the autumn in Sąpolnica, is still a refreshing month, with temperature in the range of an average high of 18.7°C (65.7°F) and an average low of 11.1°C (52°F).Temperature
Sąpolnica's September weather features a light decline in high-temperatures, reducing from a moderately hot 23.4°C (74.1°F) in August to an enjoyable 18.7°C (65.7°F). Throughout September, Sąpolnica records an average temperature of 11.1°C (52°F) at night.Humidity
In September, the average relative humidity in Sąpolnica is 76%.Rainfall
In Sąpolnica, in September, it is raining for 10.5 days, with typically 25mm (0.98") of accumulated precipitation. In Sąpolnica, during the entire year, the rain falls for 161.6 days and collects up to 423mm (16.65") of precipitation.Snowfall
May through October are months without snowfall in Sąpolnica.Daylight
In Sąpolnica, the average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 06:09 and sunset at 19:49. On the last day of the month, sunrise is at 07:00 and sunset at 18:38 CEST.
Sunshine
In September, the average sunshine in Sąpolnica is 8.6h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sąpolnica, Poland
- Average high temperature in September: 18.7°C
The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (1.3°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-2.2°C).
Average pressure in September
Sąpolnica, Poland
- Average pressure in September: 1016.5mbar
The months with the highest atmospheric pressure are September and October (1016.5mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in September
Sąpolnica, Poland
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is August (12.2km/h).
Average humidity in September
Sąpolnica, Poland
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Sąpolnica, Poland
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is January (48mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Sąpolnica, Poland
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in September
Sąpolnica, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (88mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Sąpolnica, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sąpolnica, 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: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Sąpolnica, Poland
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is December (8.3 days).
Average UV index in September
Sąpolnica, Poland
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Sąpolnica, Poland
- Average cloud cover in September: 40
The month with the most cloud cover is December (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Sąpolnica, Poland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, November and December (8km).





