Weather in Warsaw in September
In an average September, Warsaw sees a daily high around 19°C and a low around 10°C, based on 1980–2026 of local climate records.
| Average high | 19°C |
|---|---|
| Typical high range | 13°C to 25°C |
| Average low | 10°C |
| Typical low range | 5°C to 13°C |
| Average daily precipitation | 3 mm |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
34°C
2015-09-01
Lowest
6°C
2010-09-30
Low
Highest
18°C
2015-09-01
Lowest
-1°C
2013-09-30
Feels-like
Highest
40°C
2015-09-01
Lowest
-5°C
2013-09-30
Humidity
Highest
15.6 g/m³
2025-09-05
Lowest
4.5 g/m³
1993-09-30
Wind
Highest
41 km/h
1990-09-22
Lowest
5 km/h
1980-09-24
Gust
Highest
90 km/h
2019-09-30
Lowest
11 km/h
1980-09-24
Precip
Wettest
146 mm
2017
Driest
14 mm
2023
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