September weather forecastRolki, Poland
September
Weather in September
September, the first month of the autumn in Rolki, is still a comfortable month, with an average temperature varying between 18.1°C (64.6°F) and 9.4°C (48.9°F).Temperature
Rolki's transition into September involves a shift in temperature, receding from a warm 23.3°C (73.9°F) in August to a comfortable 18.1°C (64.6°F). Throughout September, Rolki records an average temperature of 9.4°C (48.9°F) at night.Humidity
In September, the average relative humidity in Rolki, Poland, is 77%.Rainfall
In Rolki, during September, the rain falls for 13.3 days and regularly aggregates up to 31mm (1.22") of precipitation. Throughout the year, there are 155 rainfall days, and 436mm (17.17") of precipitation is accumulated.Snowfall
In Rolki, snow does not fall in June through September.Daylight
In Rolki, the average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 05:41 and sunset at 19:21. On the last day of the month, sunrise is at 06:32 and sunset at 18:10 CEST.
Sunshine
The average sunshine in September in Rolki is 7.7h.UV index
In September, the average daily maximum UV index in Rolki, Poland, is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rolki, Poland
- Average high temperature in September: 18.1°C
The warmest months (with the highest average high temperature) are July and August (23.3°C).
The month with the lowest average high temperature is January (-1.5°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is July (13.1°C).
The coldest month (with the lowest average low temperature) is January (-5.3°C).
Average pressure in September
Rolki, Poland
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is October (1017.7mbar).
The month with the lowest atmospheric pressure is July (1013.1mbar).
Average wind speed in September
Rolki, Poland
- Average wind speed in September: 11.9km/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
Rolki, Poland
- Average humidity in September: 77%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (70%).
Average rainfall in September
Rolki, Poland
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is June (65mm).
The driest months (with the least rainfall) are February and April (20mm).
Average rainfall days in September
Rolki, Poland
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is February (6 days).
Average snowfall in September
Rolki, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (100mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Rolki, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rolki, 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 42min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 18min).
Average sunshine days in September
Rolki, Poland
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in September
Rolki, Poland
- Average UV index in September: 3
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, February, November and December (UV index 1).
Average cloud cover in September
Rolki, Poland
- Average cloud cover in September: 43
The months with the most cloud cover are January and February (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Rolki, 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, February and December (7km).
