Cologne in Summer — Weather & What to Expect
Summer in Cologne (June, July, August) averages daytime highs of 24.3°C and lows of 14.9°C, with around 258.6mm of rain across the season (35 rainy days in total). It includes some of the best months of the year to visit (June, July, August).
In the northern hemisphere, summer in Cologne covers June, July, August.
Summer in Cologne month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| June | 24.2°C | 14.3°C | 81.0mm | 10 | 10/10 |
| July | 23.8°C | 14.8°C | 110.9mm | 13 | 9/10 |
| August | 24.8°C | 15.6°C | 66.7mm | 12 | 10/10 |
What to pack for Cologne in summer
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Light waterproof layer
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Frequently Asked Questions
Is summer a good time to visit Cologne?
Summer in Cologne rates around 10/10 — excellent time to visit. Average highs are 24.3°C with 258.6mm of rain across the season.
How hot is Cologne in summer?
Daytime highs average 24.3°C (75.7°F) across June, July, August, with nights around 14.9°C.
What months are summer in Cologne?
Cologne is in the northern hemisphere, so summer covers June, July, August.
See also: best time to visit Cologne · Cologne annual climate · Cologne in spring · Cologne in autumn · Cologne in winter
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Once you know what summer in Cologne looks like, find out exactly what to pack for Cologne at 247PackingList. For currency, language and country facts, see the Germany guide at 247CountryInfo.
Summer in Cologne — what to pack
Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →Check clothing sizes in Germany at 247Sizing before you shop.
More summer travel essentials
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.