September weather forecastGierniak, Poland
September weather for Gierniak, Poland: The first month of the autumn, September, is still a comfortable month in Gierniak, Poland, with an average temperature varying between 19.3°C (66.7°F) and 10.4°C (50.7°F). On the last day of September, in Gierniak, Poland, sunrise is at 06:28 and sunset at 18:09 CEST.
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Gierniak, Poland, with an average temperature varying between 19.3°C (66.7°F) and 10.4°C (50.7°F).Temperature
The shift from August to September involves a decrease in the average high-temperature, dropping from a moderately hot 25°C (77°F) to an enjoyable 19.3°C (66.7°F). The low-temperature average for Gierniak during September stands at a fresh 10.4°C (50.7°F).Humidity
The average relative humidity in September is 73%.Rainfall
In Gierniak, during September, the rain falls for 11.7 days and regularly aggregates up to 33mm (1.3") of precipitation. In Gierniak, during the entire year, the rain falls for 149.5 days and collects up to 457mm (17.99") of precipitation.Snowfall
In Gierniak, snow does not fall in May through September.Daylight
In Gierniak, the average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 05:43 and sunset at 19:14. On the last day of September, in Gierniak, Poland, sunrise is at 06:28 and sunset at 18:09 CEST.
Sunshine
In September, the average sunshine in Gierniak is 7.8h.UV index
In Gierniak, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 3 in September transforms into this advice:
Ensure safety - Sun damage prevention is strongly urged. It's recommended to limit sun exposure when its radiation is at its peak during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gierniak, Poland
- Average high temperature in September: 19.3°C
The warmest month (with the highest average high temperature) is August (25°C).
The month with the lowest average high temperature is January (-0.8°C).
- Average low temperature in September: 10.4°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 (-4.3°C).
Average pressure in September
Gierniak, Poland
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is October (1018.8mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).
Average wind speed in September
Gierniak, Poland
- Average wind speed in September: 10.9km/h
The windiest month (with the highest average wind speed) is December (13.4km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in September
Gierniak, Poland
- Average humidity in September: 73%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Gierniak, Poland
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is May (62mm).
The driest month (with the least rainfall) is November (24mm).
Average rainfall days in September
Gierniak, Poland
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in September
Gierniak, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (158mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Gierniak, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.9 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
Gierniak, 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: 7h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Gierniak, Poland
- Average sunshine days in September: 15.9 days
The months with the most sunshine days are October and November (16.1 days).
The month with the least sunshine days is July (9.1 days).
Average UV index in September
Gierniak, Poland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Gierniak, Poland
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Gierniak, Poland
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (6km).
