In Cork, the average temperature of the coldest month (January) is 5.7 °C (42.3 °F), that of the hottest month (July) is 15.1 °C (59.2 °F). March · April · May · June. The summer season in Cork City runs from June to August. The average temperature ranges from 16 to 20 °C (60 and 68 °F) and it is the driest season compared to the others.
However, summer is also the best time to visit Cork, as it brings the warmest climate to the city, with an average of 18 hours of daylight and the least amount of rain. While rain can suddenly ruin your plans, the city recovers with sunny afternoons that are just as unexpected. The good thing about traveling to Cork during this period is the number of lively festivals and the plethora of activities it offers. These celebrations include everything from music, food, boat trips and trips to wildlife watching.
This is also the busiest time of the year, so accommodation will most likely cost more than usual due to the large number of people. While Cork's year-round temperatures are almost the same as those in Dublin, Cork rains considerably more, especially in the colder months. The good thing about traveling to Cork in autumn is that it's less crowded than in summer and offers quieter, more uninterrupted views.