September weather forecastGruta, Poland
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Gruta, Poland, with temperature in the range of an average low of 10.7°C (51.3°F) and an average high of 18.7°C (65.7°F).Temperature
Gruta's average high-temperature decreases in September, falling from a moderately hot 24.3°C (75.7°F) in August to a refreshing 18.7°C (65.7°F). September nights experience a consistent temperature drop to a fresh 10.7°C (51.3°F).Humidity
In September, the average relative humidity in Gruta is 72%.Rainfall
In Gruta, in September, during 9.5 rainfall days, 22mm (0.87") of precipitation is typically accumulated. In Gruta, Poland, during the entire year, the rain falls for 141.7 days and collects up to 351mm (13.82") of precipitation.Snowfall
In Gruta, snow does not fall in June through October.Daylight
In September, the average length of the day in Gruta is 12h and 41min.On the first day of the month, sunrise is at 05:54 and sunset at 19:33. On the last day of September, sunrise is at 06:44 and sunset at 18:23 CEST.
Sunshine
In Gruta, the average sunshine in September is 8h.UV index
In Gruta, Poland, 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 unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. 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
Gruta, Poland
- Average high temperature in September: 18.7°C
The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (-0.1°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).
Average pressure in September
Gruta, Poland
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is October (1017.2mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).
Average wind speed in September
Gruta, Poland
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is December (14.4km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in September
Gruta, Poland
- Average humidity in September: 72%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and August (68%).
Average rainfall in September
Gruta, Poland
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is May (46mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Gruta, Poland
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and February (9.3 days).
Average snowfall in September
Gruta, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (87mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Gruta, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gruta, 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 36min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Gruta, Poland
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in September
Gruta, 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 and November (UV index 1).
Average cloud cover in September
Gruta, Poland
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Gruta, Poland
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (7km).
