May in Ireland typically offers a transition from spring to summer, characterized by milder temperatures, increased sunshine, and less rainfall compared to the preceding months. Average daytime temperatures range from 11C to 15C (52F to 59F), though warmer days exceeding 18C (64F) are possible. Nights remain cool, generally averaging between 5C and 9C (41F to 48F). Sunshine hours increase noticeably in May, providing longer daylight periods ideal for outdoor activities.
Understanding Ireland’s climate in May is crucial for travelers planning trips during this shoulder season. The improved weather conditions allow for a wider range of outdoor pursuits, from hiking and cycling to exploring coastal areas and historical sites. The relatively fewer crowds compared to the peak summer months also make May an attractive time to visit. Historically, May has marked the beginning of the busier tourist season, signifying the shift toward warmer weather and extended daylight.