September weather forecastŚwirna, Poland
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Świrna, Poland, with an average temperature fluctuating between 10.2°C (50.4°F) and 19.3°C (66.7°F).Temperature
Świrna in September demonstrates a small temperature transition, adjusting from an average high of a moderately hot 25.1°C (77.2°F) in August to a refreshing 19.3°C (66.7°F). Świrna records an average nighttime low-temperature of 10.2°C (50.4°F) throughout September.Humidity
The average relative humidity in September is 72%.Rainfall
In Świrna, during September, the rain falls for 12.5 days and regularly aggregates up to 35mm (1.38") of precipitation. Throughout the year, there are 161.4 rainfall days, and 490mm (19.29") of precipitation is accumulated.Snowfall
In Świrna, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 38min.On the first day of September in Świrna, sunrise is at 05:49 and sunset at 19:19. On the last day of the month, sunrise is at 06:34 and sunset at 18:14 CEST.
Sunshine
In Świrna, the average sunshine in September is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Świrna, Poland
- Average high temperature in September: 19.3°C
The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure in September
Świrna, Poland
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is October (1018.8mbar).
The month with the lowest atmospheric pressure is July (1014.1mbar).
Average wind speed in September
Świrna, Poland
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is December (12.6km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).
Average humidity in September
Świrna, 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
Świrna, Poland
- Average rainfall in September: 35mm
The wettest months (with the highest rainfall) are May and July (63mm).
The driest month (with the least rainfall) is November (27mm).
Average rainfall days in September
Świrna, Poland
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Świrna, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (149mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Świrna, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Świrna, Poland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- 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 February (Average sunshine: 2h and 48min).
Average sunshine days in September
Świrna, Poland
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is January (8.1 days).
Average UV index in September
Świrna, 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 and December (UV index 1).
Average cloud cover in September
Świrna, Poland
- Average cloud cover in September: 40
The months with the most cloud cover are January and February (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Świrna, 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).
