Europe › Germany › Cologne
30-year normals (1991-2020)
Cologne has a oceanic/humid subtropical climate, classified as Cfb in the Köppen system. The warmest month is July with an average high of 23°C, while the coldest month is January with lows dropping to 0°C. The annual temperature range of 23°C reflects moderate seasonal variation.
The driest month is September with only 11 rain days and 71mm of precipitation. For travellers, September through to the following month typically offers the best balance of warm temperatures and dry conditions. Average humidity ranges from 65% to 65% throughout the year.
Based on temperature and rainfall data, the best months to visit Cologne are May, June, July. These months offer the most comfortable temperatures with relatively low rainfall, ideal for sightseeing and outdoor activities.
Full Best Time to Visit GuideWarmest Month
23°C
July
Coldest Month
0°C
January
Driest Month
11 days
September
Annual Range
23°C
0° to 23°
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 5°C | 0°C | 14 | 4h | View |
| February | 6°C | 0°C | 13 | 5h | View |
| March | 10°C | 2°C | 14 | 7h | View |
| April | 14°C | 5°C | 11 | 10h | View |
| May | 18°C | 9°C | 12 | 11h | View |
| June | 21°C | 12°C | 12 | 11h | View |
| July | 23°C | 15°C | 13 | 11h | View |
| August | 23°C | 14°C | 12 | 10h | View |
| September | 19°C | 11°C | 11 | 8h | View |
| October | 14°C | 8°C | 13 | 6h | View |
| November | 9°C | 4°C | 14 | 4h | View |
| December | 6°C | 1°C | 16 | 3h | View |
January
14 rain days, 4h sun
February
13 rain days, 5h sun
March
14 rain days, 7h sun
April
11 rain days, 10h sun
May
12 rain days, 11h sun
June
12 rain days, 11h sun
July
13 rain days, 11h sun
August
12 rain days, 10h sun
September
11 rain days, 8h sun
October
13 rain days, 6h sun
November
14 rain days, 4h sun
December
16 rain days, 3h sun
Cologne in July
Data Sources for Cologne
Climate normals represent 30-year averages (1991-2020). Individual years may vary.