The best time to visit Dublin is June when temperatures are warm and festivals fill the streets. From June 13-16, enjoy the Taste of Dublin, the country's premier food and drinks festival that allows visitors to create their dream tasting menu. The five-star Merrion Hotel will transform its garden into an Opera stage on June 5 and 6 for Opera in the Garden, a black-tie event in partnership with Ireland's Wexford Festival Opera.