London vs Dublin

London and Dublin are closely matched in May. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

London sits in the comfortable travel range at 17°C. Dublin is also comfortable at 15°C.

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

London reaches an average high of 17°C (63°F) and drops to 8°C (46°F) at night during May. The daily temperature range is 9°C, meaning moderate variation throughout the day.

Dublin averages 15°C (59°F) for the high and 8°C (46°F) for the low, with a daily range of 7°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 May.

London receives approximately 52 mm of rainfall across 10 rain days during May. You can expect rain roughly every other day.

Dublin sees 67 mm over 14 rain days. That makes London the drier option by 4 rain days and 15 mm of total precipitation.

Both cities share similar humidity levels at 65%.