London vs Cologne

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, London edges ahead as the better destination in August. London offers 10 hours of daily sunshine with only 10 rain days, while Cologne sees 10 sunshine hours and 12 rain days.

London sits in the comfortable travel range at 21°C. Cologne is also comfortable at 23°C.

For travelers who prioritize dry weather, London is the stronger choice in August.

London reaches an average high of 21°C (70°F) and drops to 13°C (55°F) at night during August. The daily temperature range is 8°C, meaning moderate variation throughout the day.

Cologne averages 23°C (73°F) for the high and 14°C (57°F) for the low, with a daily range of 9°C. The 2°C difference is noticeable but not dramatic.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in August.

London receives approximately 61 mm of rainfall across 10 rain days during August. You can expect rain roughly every other day.

Cologne sees 79 mm over 12 rain days. That makes London the drier option by 2 rain days and 18 mm of total precipitation.

Both cities share similar humidity levels at 65%.