September weather forecastCelestyny, Poland
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Celestyny, Poland, with an average temperature fluctuating between 11.3°C (52.3°F) and 19.5°C (67.1°F).Temperature
With September's arrival, Celestyny sees a decrease in average high-temperatures, moving from a moderately hot 24.9°C (76.8°F) in August to a comfortable 19.5°C (67.1°F). During the nights in September, Celestyny observes an average low-temperature of 11.3°C (52.3°F).Humidity
In September, the average relative humidity is 70%.Rainfall
In Celestyny, Poland, in September, during 9.7 rainfall days, 15mm (0.59") of precipitation is typically accumulated. Throughout the year, there are 119.6 rainfall days, and 215mm (8.46") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Celestyny.Daylight
In September, the average length of the day in Celestyny is 12h and 39min.On the first day of September, sunrise is at 05:59 and sunset at 19:33. On the last day of the month, sunrise is at 06:46 and sunset at 18:26 CEST.
Sunshine
In September, the average sunshine in Celestyny is 8.4h.UV index
In Celestyny, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Celestyny, Poland
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (0.6°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-2.9°C).
Average pressure in September
Celestyny, Poland
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is October (1018mbar).
The month with the lowest atmospheric pressure is July (1014.1mbar).
Average wind speed in September
Celestyny, Poland
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is December (14.9km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in September
Celestyny, Poland
- Average humidity in September: 70%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Celestyny, Poland
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is May (31mm).
The driest months (with the least rainfall) are April and November (11mm).
Average rainfall days in September
Celestyny, Poland
- Average rainfall days in September: 9.7 days
The months with the highest number of rainy days are June and July (14.5 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Celestyny, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (45mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Celestyny, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Celestyny, 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: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Celestyny, Poland
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in September
Celestyny, Poland
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Celestyny, Poland
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Celestyny, Poland
- Average visibility in September: 9km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, November and December (8km).
