Köln Climate by Month
Köln, North Rhine-Westphalia, Germany
Warm summers and cool winters, with rain spread through the year.
Warm summers and cool winters, with rain spread through the year: that's Köln's climate in short. July is the warmest month, with highs around 77°F (25°C); January is the coolest at 44°F (7°C), and nights dip to 35°F (2°C). It gets 31 in (783 mm) of rain a year, spread across the months.
- Warmest month
- 77°F(25°C)
- Average high, July
- Coldest nights
- 35°F(2°C)
- Average low, January
- Rain per year
- 31 in(783 mm)
- No clear rainy season
- Humidity
- 74%
- Sunniest: June
Best and worst months in Köln
Best for weatherJune to August are the best time for weather in Köln: highs near 76°F (24°C) and about 3.1 in (80 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 44°F (7°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in August.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Köln weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 44°F(7°C) | 35°F(2°C) | 2.5 in(63 mm) | 86% | 0.7 |
| FebFebruary | 46°F(8°C) | 35°F(2°C) | 2.2 in(55 mm) | 82% | 1.4 |
| MarMarch | 53°F(12°C) | 39°F(4°C) | 2.2 in(55 mm) | 67% | 2.5 |
| AprApril | 61°F(16°C) | 44°F(7°C) | 1.7 in(43 mm) | 67% | 4.0 |
| MayMay | 69°F(20°C) | 50°F(10°C) | 2.5 in(63 mm) | 63% | 4.9 |
| JunJuneBest | 74°F(23°C) | 56°F(13°C) | 2.8 in(72 mm) | 67% | 5.2 |
| JulJulyBest | 77°F(25°C) | 59°F(15°C) | 3.5 in(89 mm) | 64% | 5.0 |
| AugAugustBest | 76°F(25°C) | 58°F(15°C) | 3.1 in(79 mm) | 70% | 4.3 |
| SepSeptember | 69°F(20°C) | 53°F(11°C) | 2.6 in(67 mm) | 72% | 3.1 |
| OctOctober | 60°F(15°C) | 47°F(8°C) | 2.5 in(63 mm) | 80% | 1.8 |
| NovNovember | 51°F(10°C) | 41°F(5°C) | 2.4 in(62 mm) | 87% | 0.9 |
| DecDecember | 45°F(7°C) | 37°F(3°C) | 2.8 in(72 mm) | 81% | 0.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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