London vs Dublin

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, London edges ahead as the better destination in December. London offers 3 hours of daily sunshine with only 11 rain days, while Dublin sees 3 sunshine hours and 13 rain days.

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

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

London reaches an average high of 8°C (46°F) and drops to 3°C (37°F) at night during December. The daily temperature range is 5°C, meaning relatively stable temperatures from day to night.

Dublin averages 8°C (46°F) for the high and 4°C (39°F) for the low, with a daily range of 4°C. The two cities feel quite similar in terms of temperature.

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

London receives approximately 58 mm of rainfall across 11 rain days during December. You can expect rain roughly every other day.

Dublin sees 76 mm over 13 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%.