Monthly climate guide
Cologne weather in August
With highs near 25°C (77°F) and lows around 14°C (57°F), August feels warm in Cologne. Rainfall averages about 71 mm (some rain) and the sky is often cloudy. Daytime highs are about the same as July and 4°C warmer than September.
What stands out in August
- Temperatures are falling — expect highs around 4°C lower by September.
- In Cologne, August is late summer.
- Good walking weather for combining Museum Ludwig and Cologne Cathedral in one day.
- Cologne is usually about 2°C cooler than Frankfurt, 150 km away, in August.
August is typically Cologne's warmest month.
Avg high
25°C
77°F
Avg low
14°C
57°F
Rainfall
71 mm
some rain
Humidity
68%
relative
Sky
66%
cloud · often cloudy
Cologne weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 5°C / 41°F | 0°C / 31°F | 76 mm | 92% | 83% |
| February | 6°C / 43°F | -1°C / 30°F | 55 mm | 88% | 75% |
| March | 11°C / 51°F | 1°C / 34°F | 49 mm | 83% | 68% |
| April | 15°C / 59°F | 4°C / 40°F | 38 mm | 77% | 65% |
| May | 19°C / 65°F | 8°C / 46°F | 58 mm | 75% | 69% |
| June | 22°C / 72°F | 12°C / 53°F | 76 mm | 72% | 71% |
| July | 25°C / 76°F | 14°C / 57°F | 70 mm | 68% | 68% |
| August | 25°C / 77°F | 14°C / 57°F | 71 mm | 68% | 66% |
| September | 21°C / 70°F | 10°C / 51°F | 54 mm | 72% | 64% |
| October | 16°C / 60°F | 7°C / 45°F | 62 mm | 83% | 72% |
| November | 10°C / 49°F | 3°C / 38°F | 57 mm | 90% | 77% |
| December | 6°C / 44°F | 1°C / 35°F | 83 mm | 93% | 83% |
What to pack for August
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- An extra layer — evenings are noticeably cooler than afternoons
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is August a good time to visit Cologne?
Our Cologne guide recommends: April to October for mild weather and long daylight hours.
Kölsch beer is traditionally served in small 0.2-litre glasses — expect your waiter to keep bringing fresh ones until you say stop.
Best time to visit Cologne →Other Germany cities in August
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Cologne weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/germany/cologne/august
<a href="https://weathercompare.eu/weather/germany/cologne/august">Cologne weather in August</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/germany/cologne" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Cologne weather in August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/germany/cologne/august">Cologne weather in August</a> – WeatherCompare</p>
Cologne in August: quick answers
Is August a good time to visit Cologne?
August is a reasonable time for Cologne: highs around 25°C and about 71 mm of rain, though not one of the three best months.
How warm is Cologne in August?
Average highs are about 25°C (77°F) and average lows about 14°C (57°F), based on 10 years of daily data.
Does it rain a lot in Cologne in August?
Cologne typically gets around 71 mm of rain in August — some rain.
When is the best time to visit Cologne?
April to October for mild weather and long daylight hours.
Figures are long-term averages for the area around Cologne (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.