September weather forecastSławiny, Poland
September
Weather in September
September, the first month of the autumn in Sławiny, is also an enjoyable month, with an average temperature fluctuating between 19.2°C (66.6°F) and 10.8°C (51.4°F).Temperature
Start of September brings a shift in the average high-temperature, falling from August's moderately hot 25.5°C (77.9°F) to an enjoyable 19.2°C (66.6°F). In September, the nighttime temperature in Sławiny lowers to an average of 10.8°C (51.4°F).Humidity
In Sławiny, the average relative humidity in September is 72%.Rainfall
In Sławiny, in September, it is raining for 12 days, with typically 34mm (1.34") of accumulated precipitation. In Sławiny, during the entire year, the rain falls for 144.9 days and collects up to 428mm (16.85") of precipitation.Snowfall
In Sławiny, snow does not fall in May through September.Daylight
In September, the average length of the day in Sławiny is 12h and 39min.On the first day of the month, sunrise is at 05:46 and sunset at 19:20. On the last day of September, sunrise is at 06:33 and sunset at 18:12 CEST.
Sunshine
In Sławiny, Poland, the average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September in Sławiny is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sławiny, Poland
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (25.5°C).
The month with the lowest average high temperature is January (-0.4°C).
- Average low temperature in September: 10.8°C
The months with the highest average low temperature are July and August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in September
Sławiny, Poland
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is October (1018.5mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).
Average wind speed in September
Sławiny, Poland
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is December (12.8km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in September
Sławiny, 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 (66%).
Average rainfall in September
Sławiny, Poland
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is May (64mm).
The driest month (with the least rainfall) is November (23mm).
Average rainfall days in September
Sławiny, Poland
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in September
Sławiny, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (125mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Sławiny, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sławiny, Poland
- Average daylight in September: 12h and 42min
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: 7h and 48min
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 42min).
Average sunshine days in September
Sławiny, Poland
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is July (10.5 days).
Average UV index in September
Sławiny, 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
Sławiny, Poland
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Sławiny, Poland
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).





