September weather forecastTopolno, Poland
September
Weather in September
September, the first month of the autumn in Topolno, is still a comfortable month, with an average temperature varying between 19.1°C (66.4°F) and 10.5°C (50.9°F).Temperature
Observing a mild shift, the average high-temperature during September reduces from August's moderately hot 24.7°C (76.5°F) to a refreshing 19.1°C (66.4°F). The average nighttime temperature in Topolno lowers to a fresh 10.5°C (50.9°F) throughout September.Humidity
In Topolno, the average relative humidity in September is 72%.Rainfall
In Topolno, in September, during 9.2 rainfall days, 21mm (0.83") of precipitation is typically accumulated. In Topolno, during the entire year, the rain falls for 138.8 days and collects up to 352mm (13.86") of precipitation.Snowfall
June through September are months without snowfall in Topolno.Daylight
In Topolno, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 05:57 and sunset at 19:36. On the last day of September, sunrise is at 06:47 and sunset at 18:25 CEST.
Sunshine
In September, the average sunshine in Topolno is 8h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Topolno, Poland
- Average high temperature in September: 19.1°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 (-0.3°C).
- Average low temperature in September: 10.5°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 (-3.6°C).
Average pressure in September
Topolno, Poland
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is October (1017.8mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in September
Topolno, Poland
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is December (15.1km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in September
Topolno, 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
Topolno, Poland
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is May (51mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Topolno, Poland
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Topolno, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (81mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Topolno, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Topolno, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Topolno, Poland
- Average sunshine days in September: 18 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in September
Topolno, 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 and December (UV index 1).
Average cloud cover in September
Topolno, Poland
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Topolno, 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).





