Katowice Weather in September
Katowice in September averages 20°C (68°F) during the day and 10°C (50°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Katowice in September
Historically, approximately 13 days this month are expected to have rain, averaging 78 mm (3.1 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Katowice in September
September in Katowice is generally perfect, with days reaching 20°C (68°F) and nights settling around 10°C (50°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 10°C (50°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Katowice in September
The city usually sees around 129 hours of sunlight, indicating a moderately sunny period.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Katowice.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Poland, check out our Katowice's climate page.
Katowice Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
20°C (68°F)
Chance of Rain
43%
Precipitation
78 mm (3.1 in)
Rainy days
13 days
Humidity
79% *
Sunshine
129 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Katowice typically drop from around 21°C (70°F) at the start of September to approximately 17°C (63°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 11°C (52°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Katowice in September
Browse day-by-day weather records for Katowice spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Katowice historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Katowice.
- The warmest day in September was on September 3, 2024, with a maximum of 32°C (90°F).
- On September 30, 2010, Katowice saw its coldest September day with temperatures maxing out at 6°C (43°F).
- Katowice registered its coldest September night on September 29, 1977, with temperatures dropping to -2°C (28°F).
Best Places in Poland in September
Find out more about the weather in Poland and which places have the best travel conditions in this month. See all of Poland in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Katowice in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Katowice in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Poland, check out our Katowice's climate page.
Temperature Rainfall Sunshine Humidity
See the full Katowice climate overview or explore weather in Poland.
