September weather forecastGrzawa, Poland
September
Weather in September
September, the first month of the autumn in Grzawa, is also an enjoyable month, with temperature in the range of an average low of 10.1°C (50.2°F) and an average high of 19°C (66.2°F).Temperature
As August transitions to September, the average high-temperature falls from a warm 24.7°C (76.5°F) to a comfortable 19°C (66.2°F). In Grzawa, an average low-temperature of 10.1°C (50.2°F) is recorded during September nights.Humidity
In September, the average relative humidity is 74%.Rainfall
In Grzawa, Poland, during September, the rain falls for 11.5 days and regularly aggregates up to 34mm (1.34") of precipitation. Throughout the year, there are 128.8 rainfall days, and 410mm (16.14") of precipitation is accumulated.Snowfall
In Grzawa, snow does not fall in June through September.Daylight
In Grzawa, the average length of the day in September is 12h and 37min.On the first day of September, sunrise is at 05:59 and sunset at 19:27. On the last day of the month, sunrise is at 06:43 and sunset at 18:24 CEST.
Sunshine
In Grzawa, Poland, the average sunshine in September is 8.3h.UV index
In Grzawa, Poland, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 3 in September leads to these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grzawa, Poland
- Average high temperature in September: 19°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 (0.3°C).
- Average low temperature in September: 10.1°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (-4.2°C).
Average pressure in September
Grzawa, Poland
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is October (1018.8mbar).
The month with the lowest atmospheric pressure is July (1014.6mbar).
Average wind speed in September
Grzawa, Poland
- Average wind speed in September: 9.6km/h
The windiest month (with the highest average wind speed) is December (12.6km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).
Average humidity in September
Grzawa, Poland
- Average humidity in September: 74%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Grzawa, Poland
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is May (55mm).
The driest month (with the least rainfall) is November (20mm).
Average rainfall days in September
Grzawa, Poland
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Grzawa, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (159mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grzawa, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grzawa, Poland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in September
Grzawa, Poland
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is February (11.7 days).
Average UV index in September
Grzawa, Poland
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Grzawa, Poland
- Average cloud cover in September: 39
The months with the most cloud cover are January and February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Grzawa, Poland
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (7km).
