The climate in Rzeszów during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Rzeszów and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 19°C (66°F), whilst at night 9°C (48°F) is normal.
Daytime temperature | 18.9°C 65.9°F |
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Nightly temperature | 9°C 48.1°F |
Average temperature | 13.9°C 57°F |
Daily sunshine | 6 hrs |
Avg rainfall | 52 mm 2 ins |
Rainy days | 12 days |
Sea temperature | 18.9°C 65.9°F |
Humidity | 79% |
Windspeed | 10.8kph 7 mph |
On average September is the 5th wettest month of the year in Rzeszów with around 52mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Rzeszów in September 2025.
Best places to visit in September
Hottest month: | July | 23.5°C 74.3°F |
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Driest month: | February | 28mm 1.1ins |
Sunniest month: | August | 7.8hrs |
Coldest month: | January | -2.5°C 27.5°F |
Wettest month: | July | 89mm 3.5ins |