Best time to visit Cologne
The best months to visit Cologne are August, June and July, based on month-by-month temperature and rainfall data. The full year of weather, daylight, holidays, and festival timing is below.
August, June and July score best for Cologne weather:
- June23° / 11°CJune is warm but wetter, so plan Rhine walks with museum or brewery backups.
- July25° / 13°CJuly is warm and showery, strong for river evenings, Deutz views, and late Belgian Quarter meals.
- August25° / 13°CAugust stays warm and humid, with thunderstorm plans useful around the cathedral and Rhine.
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By TripSapien Research · Updated May 20, 2026
Cologne weather by month
| Month | High | Low | Rain (mm) | Rainy days | Daylight |
|---|---|---|---|---|---|
| January | 6° | 0° | 60 | 12 | 8h |
| February | 7° | 0° | 55 | 11 | 10h |
| March | 11° | 2° | 55 | 10 | 12h |
| April | 16° | 5° | 50 | 9 | 14h |
| May | 20° | 8° | 60 | 10 | 15h |
| JuneBest weather | 23° | 11° | 85 | 10 | 16h |
| JulyBest weather | 25° | 13° | 85 | 12 | 16h |
| AugustBest weather | 25° | 13° | 85 | 11 | 14h |
| September | 20° | 10° | 65 | 10 | 12h |
| October | 15° | 7° | 65 | 11 | 10h |
| November | 10° | 4° | 65 | 12 | 9h |
| December | 7° | 1° | 70 | 13 | 8h |
Temperatures in °C. Long-term monthly averages.
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Cologne month by month
January
Cologne in January: 5.9°C high, 0°C low, 60mm rain over 12 days, 8.2h daylight. Cold and clearer — short daylight but skies open.
February
Cologne in February: 7.2°C high, 0.1°C low, 55mm rain over 11 days, 9.7h daylight. Mild and dry — shoulder-season sweet spot.
Karneval
March
Cologne in March: 11.4°C high, 2°C low, 55mm rain over 10 days, 11.5h daylight. Mild and dry — shoulder-season sweet spot.
April
Cologne in April: 16.1°C high, 4.5°C low, 50mm rain over 9 days, 13.6h daylight. Mild and dry — shoulder-season sweet spot.
May
Cologne in May: 19.7°C high, 8.1°C low, 60mm rain over 10 days, 15.3h daylight. Mild and dry — shoulder-season sweet spot.
JuneBest weather
Cologne in June: 22.7°C high, 11.2°C low, 85mm rain over 10 days, 16.3h daylight. Mild and dry — shoulder-season sweet spot.
JulyBest weather
Cologne in July: 24.9°C high, 13.3°C low, 85mm rain over 12 days, 15.9h daylight. Mild and dry — shoulder-season sweet spot.
AugustBest weather
Cologne in August: 24.5°C high, 12.8°C low, 85mm rain over 11 days, 14.3h daylight. Mild and dry — shoulder-season sweet spot.
September
Cologne in September: 20.4°C high, 9.7°C low, 65mm rain over 10 days, 12.4h daylight. Mild and dry — shoulder-season sweet spot.
October
Cologne in October: 15.2°C high, 6.8°C low, 65mm rain over 11 days, 10.4h daylight. Mild and dry — shoulder-season sweet spot.
November
Cologne in November: 9.8°C high, 3.5°C low, 65mm rain over 12 days, 8.6h daylight. Mild and dry — shoulder-season sweet spot.
Christmas Market
December
Cologne in December: 6.5°C high, 1°C low, 70mm rain over 13 days, 7.7h daylight. Cold and wet — bundle up, museum and pool weather.
Christmas Market
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