Weather in Köln in September
Climate normals based on 10 years of historical data for Köln, Bundesrepublik.
Average high
21°C
Average low
12°C
Rainfall
79 mm
10 rainy days
Sunshine
3.9h/day
Luftfeuchtigkeit
68%
How Hot Is Köln in September?
Late summer in Köln: 21°C afternoons, 12°C cooler nights.
Sunshine Hours in September
Average sun and average daylight: 3.9h a day in Köln, sun up between 7:10 am and 7:45 pm.
Does It Rain In Köln In September?
September is reliably wet in Köln: 79mm in 10 days, with rain a near-daily feature.
Is Köln Humid In September?
September brings sticky conditions to Köln — humidity averages 68%, particularly noticeable in the afternoons.
Wind In Köln In September
Breezes around 14 kph in Köln this September — comfortable for outdoor activity.
Cloud Cover In Köln In September
Cloudy skies dominate Köln in September — averaging 59% cloud cover.
Cities With Similar Weather In September
Weather in Köln, month by month
| Month | High / Low | Regen | |
|---|---|---|---|
| Wetter im Januar | 6°C / 1°C | 89mm | Details → |
| Wetter im Februar | 8°C / 2°C | 72mm | Details → |
| Wetter im März | 11°C / 4°C | 81mm | Details → |
| Wetter im April | 15°C / 6°C | 57mm | Details → |
| Wetter im Mai | 19°C / 9°C | 70mm | Details → |
| Wetter im Juni | 23°C / 14°C | 88mm | Details → |
| Wetter im Juli | 24°C / 15°C | 96mm | Details → |
| Wetter im August | 25°C / 16°C | 80mm | Details → |
| Wetter im September | 21°C / 12°C | 79mm | |
| Wetter im Oktober | 16°C / 9°C | 71mm | Details → |
| Wetter im November | 10°C / 5°C | 85mm | Details → |
| Wetter im Dezember | 7°C / 3°C | 87mm | Details → |