Climate averages 1991–2020
Köln weather
in July.
A warm, moderately wet month: the warmest and the joint 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in Köln: daytime highs average 23.0°C and nights cool to about 14.6°C. By daytime temperature it is the warmest month of the year.
Expect about 80 mm of rain on roughly 13 days, which makes July a moderately wet month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 03 min on an average July day.
The nearest other city in this atlas is Leverkusen (11 km away). In July its highs average 23.2°C, about as warm as Köln, with 80 mm of rain.
Among the 120 cities listed in Germany, Köln ranks joint 53rd of 120 for the warmest July highs and joint 67th of 120 for the driest July (rainfall, lowest first). The mean July high of those 120 cities is 23.0°C; Köln is level with that mean.
From July to August, average highs fall by 0.1°C to 22.9°C, and monthly rainfall stays at 80 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Köln climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.2°C0.5°C | 0.5°C | 90 | 14.8 | 8.58 h |
| February | 6.4°C0.5°C | 0.5°C | 74 | 12.8 | 10.010 h |
| March | 10.0°C2.3°C | 2.3°C | 73 | 13.7 | 11.812 h |
| April | 14.2°C5.1°C | 5.1°C | 52 | 10.8 | 13.814 h |
| May | 18.0°C9.1°C | 9.1°C | 62 | 11.9 | 15.516 h |
| June | 20.9°C12.3°C | 12.3°C | 70 | 12.2 | 16.416 h |
| July, selected | 23.0°C14.6°C | 14.6°C | 80 | 13.1 | 16.016 h |
| August | 22.9°C14.4°C | 14.4°C | 80 | 11.9 | 14.615 h |
| September | 19.1°C11.4°C | 11.4°C | 71 | 11.3 | 12.713 h |
| October | 14.3°C8.1°C | 8.1°C | 83 | 12.8 | 10.811 h |
| November | 9.1°C4.3°C | 4.3°C | 85 | 14.2 | 9.09 h |
| December | 5.8°C1.5°C | 1.5°C | 101 | 16.0 | 8.08 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Leverkusen in JulyGermany · 11 kmHigh 23.2°C · Low 14.9°C · 80 mm rain
- Bergisch Gladbach in JulyGermany · 14 kmHigh 23.0°C · Low 14.8°C · 88 mm rain
- Troisdorf in JulyGermany · 20 kmHigh 23.2°C · Low 14.7°C · 77 mm rain
- Bonn in JulyGermany · 24 kmHigh 23.4°C · Low 14.8°C · 74 mm rain
- Solingen in JulyGermany · 28 kmHigh 22.0°C · Low 14.0°C · 98 mm rain
- Remscheid in JulyGermany · 32 kmHigh 21.2°C · Low 13.3°C · 105 mm rain
- Düsseldorf in JulyGermany · 34 kmHigh 23.2°C · Low 14.8°C · 85 mm rain
- Neuss in JulyGermany · 35 kmHigh 23.2°C · Low 14.8°C · 85 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Köln) is explained once on the Köln year overview and on the Sources, method and limits page.
Leverkusen lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.