September weather forecastKatowice, Poland
September
Weather in September
In September, Katowice begins to feel the arrival of autumn as temperatures start to dip and daylight begins to shorten. Although the sun retreats, the city does not lose its charm as the leaves start to turn into an array of vibrant colours. The routines adjust to the changing weather, with many outdoor activities transforming to accommodate the cooler temperatures. It is a poetic month where the remnants of summer merge with the onset of autumn, creating a beautiful blend of sun and breeze.Temperature
September implies a gentle temperature shift, with average high-temperatures reducing from August's moderately hot 25°C (77°F) to an enjoyable 19.3°C (66.7°F). During September, Katowice consistently records a temperature low averaging a fresh 10.7°C (51.3°F).Humidity
The average relative humidity in September in Katowice is 72%.Rainfall
In Katowice, during September, the rain falls for 12.6 days and regularly aggregates up to 43mm (1.69") of precipitation. In Katowice, during the entire year, the rain falls for 162 days and collects up to 516mm (20.31") of precipitation.Snowfall
June through September are months without snowfall in Katowice.Daylight
The average length of the day in September in Katowice is 12h and 37min.On the first day of September, sunrise is at 05:59 and sunset at 19:28. On the last day of the month, sunrise is at 06:43 and sunset at 18:24 CEST.
Sunshine
In September, the average sunshine in Katowice is 8.4h.UV index
In September, the average daily maximum UV index in Katowice, Poland, is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Katowice, 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 (0.3°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in September
Katowice, Poland
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is October (1018.7mbar).
The month with the lowest atmospheric pressure is July (1014.5mbar).
Average wind speed in September
Katowice, Poland
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is December (13.8km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity in September
Katowice, Poland
- Average humidity in September: 72%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Katowice, Poland
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is May (65mm).
The driest month (with the least rainfall) is November (27mm).
Average rainfall days in September
Katowice, Poland
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is June (20.1 days).
The month with the least rainy days is February (8.5 days).
Average snowfall in September
Katowice, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (179mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Katowice, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Katowice, 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 6min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in September
Katowice, Poland
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is August (16.1 days).
The month with the least sunshine days is June (7.3 days).
Average UV index in September
Katowice, Poland
- Average UV index in September: 4
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
Katowice, Poland
- Average cloud cover in September: 38
The months with the most cloud cover are January and February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Katowice, Poland
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (7km).
