The climate of Cardiff in May is humid. An average of 58 mm precipitation is recorded over 15 days. The situation is wetter than the previous month: in April, an average of 30 mm is recorded over 11 days.
Temperatures are rather cool in Cardiff in May, but remain tolerable with appropriate clothing. The average maximum temperature reaches 15°C, while the minimum falls to about 10°C. The month's average temperature is 12°C. These normals should be compared with the records recorded in Cardiff in May: 24°C as a maximum in 2010 and 3°C as a minimum in 2011. We can expect about 5 days with temperatures above 18°, i.e. 16% of the month.
In May, the days last on average 15:37 in Cardiff. The sun rises around 04:21 and sets around 19:58.
With only fair weather, the month of May is not the best month of the year, but a stay to Cardiff in Wales remains possible depending on your priorities.
In May, the most favorable activities in Cardiff are: Beach and swimming, Cultural visits and heritage, Family and attractions, Nature and landscapes, Nightlife, Gastronomy and Boat trip and cruise.