Weather in Aachen, North Rhine-Westphalia, Germany in September
In an average September, Aachen sees a daily high around 20°C and a low around 11°C, based on 1981–2026 of local climate records.
| Average high | 20°C |
|---|---|
| Typical high range | 16°C to 26°C |
| Average low | 11°C |
| Typical low range | 7°C to 14°C |
| Average daily precipitation | 3 mm |
September records
The most extreme September on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
34°C
2020-09-15
Lowest
11°C
1984-09-25
Low
Highest
19°C
2023-09-11
Lowest
3°C
1987-09-30
Feels-like
Highest
38°C
2024-09-01
Lowest
-2°C
1987-09-30
Humidity
Highest
17.3 g/m³
2024-09-02
Lowest
5.7 g/m³
2018-09-29
Wind
Highest
56 km/h
2012-09-24
Lowest
6 km/h
1997-09-03
Precip
Wettest
167 mm
1998
Driest
18 mm
2006
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