Weather in Aachen in September
Climate normals based on 10 years of historical data for Aachen, Bundesrepublik.
Average high
20°C
Average low
12°C
Rainfall
71 mm
12 rainy days
Sunshine
3.9h/day
Luftfeuchtigkeit
73%
How Hot Is Aachen in September?
Indian summer territory: Aachen averages 20°C peak, 12°C low, in September. Temperatures climb 4°C over August's averages in Aachen.
Sunshine Hours in September
Mixed skies in Aachen: 3.9h of sun on a typical day, daylight from 7:10 am to 7:50 pm.
Does It Rain In Aachen In September?
Frequent rain in Aachen: 71mm across 12 days in September.
Is Aachen Humid In September?
September brings sticky conditions to Aachen — humidity averages 73%, particularly noticeable in the afternoons.
Wind In Aachen In September
Wind stays light: 17 kph on a typical day in Aachen.
Cloud Cover In Aachen In September
Grey, cloudy days are the norm: 59% average cover in Aachen.
Cities With Similar Weather In September
Weather in Aachen, month by month
| Month | High / Low | Regen | |
|---|---|---|---|
| Wetter im Januar | 5°C / 1°C | 86mm | Details → |
| Wetter im Februar | 8°C / 2°C | 74mm | Details → |
| Wetter im März | 10°C / 3°C | 82mm | Details → |
| Wetter im April | 14°C / 5°C | 52mm | Details → |
| Wetter im Mai | 18°C / 9°C | 76mm | Details → |
| Wetter im Juni | 22°C / 13°C | 83mm | Details → |
| Wetter im Juli | 23°C / 14°C | 70mm | Details → |
| Wetter im August | 24°C / 15°C | 79mm | Details → |
| Wetter im September | 20°C / 12°C | 71mm | |
| Wetter im Oktober | 15°C / 9°C | 71mm | Details → |
| Wetter im November | 10°C / 5°C | 69mm | Details → |
| Wetter im Dezember | 7°C / 3°C | 81mm | Details → |