Located in a valley of some of Irelandâs highest mountains; Killarney features a temperate climate with mild summers and cool winters. Similar to the remainder of Ireland and due exclusively to the moderate climate and everlasting rainfall, all regions consist of remarkable luxuriant landscape which has also given the country the name of the Emerald Isle. Consequently, Killarney always looks gorgeous in the rain and in case of an unexpected shower itâs almost certain that there will always a pub open nearby to duck into.
Because of the influence of mild south-westerly trade winds and the nearby Gulf Stream, the typical climate of Killarney is rather cool and damp for the majority of the year. The overall climate is primarily subjugated by the prevailing warm, humid winds bypassing the town from the Atlantic Ocean, creating a year round temperature that is never too cold, but never too hot.
Spring
Spring in Killarney is a very mild and also quiet time of the year. As summer can at times get overly crowded and busy, spring is an ideal time to vacation. With climates ranging between 9ºC to 13ºC, often peaking at 15ºC towards the middle of May and precipitation levels dropping excessively prior to the winter, spring is almost certainly the best time to holiday to Killarney.
Summer
The summer months, which typically start in May and conclude in the middle of September, are the warmest and driest months of all. Even though the area and some attractions (that are only open during the summertime) can get quite crowded throughout July and August, temperatures are at their highest and it is still a very pleasing time to holiday to Killarney. If you do choose to holiday to Killarney during July and August, you can expect plausibly warm weather, days with extensive hours of sunlight and a vigorous menu of outdoor festivals. Average temperatures will generally sit around 17ºC, commonly reaching above 20ºC. Similar to many regions throughout Europe, summertime is peak season presenting some disputes if you want a little isolation.
Autumn
A lot like spring, autumn is also a very enjoyable time to visit Killarney. Temperatures still pleasant and the busy crowds of summer have died down a great deal. October and November however, are the townâs wettest months with average precipitation levels sitting between 120mm to 135mm.
Winter
The winter months of Killarney are characterised by short, damp, misty days and long nights. But climate will rarely fall below freezing as a result of the moderating Gulf Stream winds that are always present throughout the west coast of Ireland. Winter can also be a magical time of the year, as the surrounding scenery is almost a florescent green becoming very picturesque.