Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September involves a decrease in the average high-temperature, falling from a warm 24.3°C (75.7°F) in August to a comfortable 18.7°C (65.7°F). Throughout September, Sieluń witnesses a consistent average low-temperature of 9.9°C (49.8°F).Humidity
The average relative humidity in September is 74%.Rainfall
In Sieluń, in September, during 13.8 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Sieluń, during the entire year, the rain falls for 148.8 days and collects up to 426mm (16.77") of precipitation.Snowfall
June through September are months without snowfall in Sieluń, Poland.Daylight
In September, the average length of the day in Sieluń is 12h and 40min.On the first day of September in Sieluń, sunrise is at 05:45 and sunset at 19:23. On the last day of the month, sunrise is at 06:34 and sunset at 18:13 CEST.
Sunshine
In September, the average sunshine is 7.8h.UV index
The average daily maximum UV index in September in Sieluń, Poland, is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 3 during September leads to these instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What are September temperatures in Sieluń?
What is the average humidity in September in Sieluń?
How much does it rain in Sieluń in September?
When it does not snow in Sieluń?
Does it snow in Sieluń in September?
How many hours of daylight does Sieluń have in September?
What time are sunrise and sunset in September in Sieluń?
How many hours of sunshine does Sieluń have in September?
What is the UV index intensity in September in Sieluń?
Average temperature in September
Sieluń, Poland
- Average high temperature in September: 18.7°C
The warmest months (with the highest average high temperature) are July and August (24.3°C).
The month with the lowest average high temperature is January (-1°C).
- Average low temperature in September: 9.9°C
The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).
Average pressure in September
Sieluń, Poland
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).
Average wind speed in September
Sieluń, Poland
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is December (13.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Sieluń, Poland
- Average humidity in September: 74%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and August (69%).
Average rainfall in September
Sieluń, Poland
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is May (64mm).
The driest month (with the least rainfall) is February (16mm).
Average rainfall days in September
Sieluń, Poland
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in September
Sieluń, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (79mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sieluń, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sieluń, Poland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 30min).
Average sunshine days in September
Sieluń, Poland
- Average sunshine days in September: 13.8 days
The months with the most sunshine days are March and October (16.3 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in September
Sieluń, Poland
- Average UV index in September: 3
The months with the highest UV index are 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
Sieluń, Poland
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Sieluń, 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).
Sieluń, Poland
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