September weather forecastGrochowy, Poland
September
Weather in September
September, the first month of the autumn in Grochowy, is still a comfortable month, with an average temperature ranging between min 11.1°C (52°F) and max 19.2°C (66.6°F).Temperature
As August transitions to September, the average high-temperature falls from a warm 24.7°C (76.5°F) to a refreshing 19.2°C (66.6°F). During September, Grochowy's temperature falls to a steady low-temperature average of 11.1°C (52°F).Humidity
The average relative humidity in September in Grochowy is 71%.Rainfall
In Grochowy, in September, during 10.5 rainfall days, 22mm (0.87") of precipitation is typically accumulated. In Grochowy, during the entire year, the rain falls for 140.2 days and collects up to 307mm (12.09") of precipitation.Snowfall
In Grochowy, snow does not fall in June through September.Daylight
In September, the average length of the day in Grochowy is 12h and 39min.On the first day of September in Grochowy, sunrise is at 05:59 and sunset at 19:34. On the last day of the month, sunrise is at 06:47 and sunset at 18:26 CEST.
Sunshine
In September, the average sunshine is 8.5h.UV index
In September, the average daily maximum UV index in Grochowy is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 during September leads to these advisories:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grochowy, Poland
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (24.7°C).
The month with the lowest average high temperature is January (0.5°C).
- Average low temperature in September: 11.1°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 (-2.8°C).
Average pressure in September
Grochowy, Poland
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is October (1017.8mbar).
The month with the lowest atmospheric pressure is July (1013.9mbar).
Average wind speed in September
Grochowy, Poland
- Average wind speed in September: 12.4km/h
The windiest month (with the highest average wind speed) is December (15.2km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in September
Grochowy, Poland
- Average humidity in September: 71%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Grochowy, Poland
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is June (42mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in September
Grochowy, Poland
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (7.6 days).
Average snowfall in September
Grochowy, 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
Grochowy, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grochowy, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 8h and 30min
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 6min).
Average sunshine days in September
Grochowy, Poland
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in September
Grochowy, Poland
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Grochowy, Poland
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Grochowy, 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).





