September weather forecastCetki, Poland
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Cetki, Poland, with an average temperature ranging between min 10.9°C (51.6°F) and max 19.1°C (66.4°F).Temperature
Cetki in September experiences a subtle temperature decline, with average high-temperatures reducing from a warm 24.5°C (76.1°F) in August to an enjoyable 19.1°C (66.4°F). An average low-temperature of 10.9°C (51.6°F) marks the nights in Cetki throughout September.Humidity
In Cetki, the average relative humidity in September is 72%.Rainfall
In Cetki, Poland, during September, the rain falls for 10.1 days and regularly aggregates up to 20mm (0.79") of precipitation. Throughout the year, there are 142.7 rainfall days, and 343mm (13.5") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 41min.On the first day of September, sunrise is at 05:53 and sunset at 19:31. On the last day of the month, sunrise is at 06:43 and sunset at 18:21 CEST.
Sunshine
The average sunshine in September in Cetki is 8.1h.UV index
The average daily maximum UV index in September in Cetki is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The UV index of 4 in September translates into these instructions:
Be vigilant - Preventing sunburn is recommended. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cetki, Poland
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (0.3°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-3.5°C).
Average pressure in September
Cetki, Poland
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is October (1017.7mbar).
The month with the lowest atmospheric pressure is July (1013.6mbar).
Average wind speed in September
Cetki, Poland
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is December (15.4km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in September
Cetki, 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
Cetki, Poland
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is May (45mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Cetki, Poland
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in September
Cetki, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (71mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Cetki, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cetki, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Cetki, Poland
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Cetki, Poland
- Average UV index in September: 4
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
Cetki, Poland
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Cetki, Poland
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and December (8km).





