Dublin has the most scenic, historic, and popular attractions in Ireland. The city of Dublin covers an area of 44.5 square miles. 5°C is the average temperature in January while 17°C is the average in the Summer. Depending on the time of year, visitors have the choice of varied destinations such as Glendalough, Wicklow Mountains, Kilkenny, Belfast & the Giant's Causeway, Galway & Connemara, Cliffs of Moher & Burren region, Blarney Castle & Cork amongst others.