Köln in August
7.5out of 10
Yes, a good time to go
Warm and comfortable: highs around 23°C. Frequent rain: about 12 rainy days.
23°CAvg high
14°CAvg low
12Rainy days (80 mm)
14:21 hDaylight
06:26Sunrise · 20:47 Sunset
Why this score
- Warm and comfortable: highs around 23°C
- Frequent rain: about 12 rainy days
What to wear and pack
- T-shirts and light layers
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in August varies a lot between years (±4.0 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 5°C | 1°C | 90 mm | 14 | – | – | 4.2 |
| February | 6°C | 1°C | 74 mm | 13 | – | – | 4.7 |
| March | 10°C | 3°C | 73 mm | 13 | – | – | 5.4 |
| April | 15°C | 6°C | 52 mm | 11 | – | – | 6.4 |
| May | 18°C | 9°C | 62 mm | 12 | – | – | 6.9 |
| June | 21°C | 12°C | 70 mm | 12 | – | – | 7.3 |
| July | 23°C | 14°C | 80 mm | 13 | – | – | 7.3 |
| August | 23°C | 14°C | 80 mm | 12 | – | – | 7.5 |
| September | 19°C | 11°C | 71 mm | 12 | – | – | 7.1 |
| October | 14°C | 8°C | 83 mm | 13 | – | – | 6.1 |
| November | 9°C | 4°C | 85 mm | 14 | – | – | 5.0 |
| December | 6°C | 2°C | 101 mm | 16 | – | – | 4.2 |
Frequently asked questions
How hot is Köln in August?
Daytime highs average 23°C and nights about 14°C.
When is the best time to visit Köln?
The best months are August, June, July, September.