Cologne vs London

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, London edges ahead as the better destination in December. London offers 4 hours of daily sunshine with only 11 rain days, while Cologne sees 3 sunshine hours and 16 rain days.

Cologne is on the cooler side at 6°C, requiring warmer clothing. London is cooler at 8°C.

For travelers who prioritize dry weather, London is the stronger choice in December. London receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Cologne reaches an average high of 6°C (43°F) and drops to 1°C (34°F) at night during December. The daily temperature range is 5°C, meaning relatively stable temperatures from day to night.

London averages 8°C (46°F) for the high and 3°C (37°F) for the low, with a daily range of 5°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 December.

Cologne receives approximately 97 mm of rainfall across 16 rain days during December. Rain is frequent, so waterproof gear is essential.

London sees 58 mm over 11 rain days. That makes London the drier option by 5 rain days and 39 mm of total precipitation.

Both cities share similar humidity levels at 65%.