Köln Weather in September
Köln in September
The short of it: Köln in September averages a high of 20 °C (69 °F) and a low of 11 °C (53 °F), with 67 mm (2.6 in) of rain and about 12 h 32 min of daylight. Rated 4 of 5 for a visit; the best months are April and May. Source: TerraClimate climate normals, 1991–2020.
Average high 20° · low 11° · rain 67 mm · daylight 12 h 32 min
✦✦✦✦ Recommended for a visit · best months: April & May
September in Köln brings afternoons near 20° and nights around 11°, with about 67 mm of rain over the month. Highs fall 4° against August, to near 20°; nights run about 11°. Wet spells are common — about 67 mm, the 5th wettest month.
The sun is up for about 12 h 32 min in mid-September, 120 minutes less than a month before.
For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates September 4 of 5 for a visit; the finest months here are April and May.
Against its neighbours, Köln runs warmer than most and about as wet in September. Nippes, 4 km to the N, sees much the same highs.
September in Köln, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 5th wettest of 12
- Versus August
- 4° colder, 12 mm less rain
- Versus October
- 5° warmer
- Day–night spread
- 9°
- Snow season
- seldom any
- Daylight, mid-month
- 12 h 32 min
- Average wind
- 10 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| NippesNorth Rhine-Westphalia | 4 km N | 20° | 12° | 68 mm |
| RodenkirchenNorth Rhine-Westphalia | 5 km SE | 20° | 11° | 65 mm |
| HürthNorth Rhine-Westphalia | 9 km SW | 20° | 11° | 59 mm |
| Porz am RheinNorth Rhine-Westphalia | 9 km SE | 20° | 11° | 66 mm |
| LeverkusenNorth Rhine-Westphalia | 11 km NNE | 20° | 12° | 69 mm |
| Bergisch GladbachNorth Rhine-Westphalia | 14 km ENE | 19° | 10° | 78 mm |
| KerpenNorth Rhine-Westphalia | 19 km WSW | 20° | 11° | 56 mm |
| LangenfeldNorth Rhine-Westphalia | 19 km N | 20° | 11° | 70 mm |