September weather forecastGrąbczyn, Poland
September
Weather in September
September, the first month of the autumn in Grąbczyn, is still a comfortable month, with an average temperature varying between 10.5°C (50.9°F) and 18.3°C (64.9°F).Temperature
A subtle shift in Grąbczyn's weather is observed as August turns into September, with the average high temperature reducing from a moderately hot 23.2°C (73.8°F) to a comfortable 18.3°C (64.9°F). Nightly temperatures drop to an average low of 10.5°C (50.9°F) in September.Humidity
The average relative humidity in September in Grąbczyn is 76%.Rainfall
In September, in Grąbczyn, the rain falls for 14.5 days. Throughout September, 36mm (1.42") of precipitation is accumulated. In Grąbczyn, during the entire year, the rain falls for 182 days and collects up to 532mm (20.94") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Grąbczyn, Poland, is 12h and 41min.On the first day of the month, sunrise is at 06:02 and sunset at 19:43. On the last day of September, in Grąbczyn, sunrise is at 06:54 and sunset at 18:32 CEST.
Sunshine
The average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Around midday, solar radiation is most harmful; hence, exposure should be limited. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grąbczyn, Poland
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is August (23.2°C).
The month with the lowest average high temperature is January (0.3°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-3°C).
Average pressure in September
Grąbczyn, Poland
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is October (1016.8mbar).
The month with the lowest atmospheric pressure is July (1013.6mbar).
Average wind speed in September
Grąbczyn, Poland
- Average wind speed in September: 12.4km/h
The windiest month (with the highest average wind speed) is December (15.1km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in September
Grąbczyn, Poland
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (90%).
The month with the lowest relative humidity is April (69%).
Average rainfall in September
Grąbczyn, Poland
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Grąbczyn, Poland
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is February (10.2 days).
Average snowfall in September
Grąbczyn, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (142mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grąbczyn, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grąbczyn, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Grąbczyn, Poland
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is April (13.7 days).
The month with the least sunshine days is December (6.6 days).
Average UV index in September
Grąbczyn, Poland
- Average UV index in September: 4
The months with the highest UV index are May, 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
Grąbczyn, Poland
- Average cloud cover in September: 42
The months with the most cloud cover are January and December (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Grąbczyn, Poland
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).





