The climate in Warsaw during September can be summarized as mild and a little damp.
September is in the fall / autumn in Warsaw and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 11°C (52°F) is normal.
Daytime temperature | 23.9°C 74.9°F |
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Nightly temperature | 11°C 51.7°F |
Average temperature | 17.4°C 63.3°F |
Daily sunshine | 8.7 hrs |
Avg rainfall | 84 mm 3.3 ins |
Rainy days | 9 days |
Sea temperature | 20.2°C 68.4°F |
Humidity | 74% |
Windspeed | 14.4kph 9 mph |
On average September is the 6th wettest month of the year in Warsaw with around 84mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.7 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 Warsaw in September 2024.
Best places to visit in September
Hottest month: | July | 28.7°C 83.7°F |
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Driest month: | February | 45mm 1.8ins |
Sunniest month: | July | 11.3hrs |
Coldest month: | January | -1.4°C 29.5°F |
Wettest month: | June | 101mm 4ins |