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Weather in Killarney
Lakes and mountains in Ireland's lush southwest
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About Killarney
Killarney sits in a landscape of impossible beauty—mountains fold into lakes, forests shelter ancient stories, and the Ring of Kerry highway circles it all. This is Ireland's most romantic region where nature dominates and humans humbly submit.
Best months to visit
Year-round
Things to do in Killarney
Take a jaunting car (horse cart) through national park
Hike the Torc Waterfall trail
Cycle or drive the Ring of Kerry loop
Explore Muckross House and estate
Kayak on Lough Leane
Visit nearby Gap of Dunloe's mountain pass
Weather by month
Click any month for detailed weather information and travel tips.
January
9C
Cold, with frequent heavy rain.
February
9C
Cold, with regular rainfall.
March
10C
Cool, with regular rainfall.
April
13C
Cool, with some rainy days.
May
15C
Cool, with regular rainfall.
June
18C
Mild and comfortable, with regular rainfall.
July
19C
Mild and comfortable, with regular rainfall.
August
18C
Mild and comfortable, with regular rainfall.
September
17C
Cool, with regular rainfall.
October
14C
Cool, with regular rainfall.
November
11C
Cool, with regular rainfall.
December
10C
Cool, with frequent heavy rain.
Killarney is the traditional gateway to the Ring of Kerry, but it's worth lingering for its own sake — Killarney National Park's lakes and ancient oak woods sit right at the edge of town, Muckross House and Abbey are an easy walk or jaunting-car ride away, and the Gap of Dunloe offers one of Ireland's most scenic mountain passes.
Best areas to stay in Killarney
Killarney Town
A compact town centre with pubs, restaurants and shops, right at the entrance to the national park.
Killarney National Park
Lakes, ancient oak and yew woods, Muckross House and Abbey, and free-roaming red deer.
Gap of Dunloe
A dramatic mountain pass best explored by foot, bike or jaunting car, often combined with a boat trip.
Ring of Kerry start point
Killarney is the traditional starting point for the scenic 111-mile Ring of Kerry driving route.
Getting to Killarney
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Flights
Kerry Airport (Farranfore) is about 15 minutes away; Cork and Shannon airports are 1.5-2 hours by car.
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From London
~3-3.5 hours by train from Dublin.
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Getting around
The town centre is walkable; jaunting cars, bikes and boat trips cover the national park, while a car is needed for the Ring of Kerry.
Frequently asked questions
When is the best time to visit Killarney?
May, June and September offer good weather with fewer crowds than peak summer, when the Ring of Kerry route can get congested with tour coaches.
What is Killarney National Park?
Ireland's oldest national park, right on the edge of town, with lakes, ancient woodland, Muckross House and Abbey, and red deer roaming freely — much of it walkable or accessible by bike or jaunting car (horse and trap).
Should I drive the Ring of Kerry from Killarney?
Yes, it's the classic route — a full-day 111-mile loop around the Iveragh Peninsula with coastal views, though starting early helps avoid tour bus traffic, which generally travels anticlockwise.
What is the Gap of Dunloe?
A dramatic glacial mountain pass near Killarney, often visited by bike, on foot, or by jaunting car, followed by a boat trip back across the lakes to Ross Castle.
Is Killarney walkable without a car?
The town itself is small and walkable, and the national park is right on its doorstep, but the Ring of Kerry and Gap of Dunloe are best done with a car or organised tour.
Traveler reviews
★★★★★
Spent a morning cycling through Killarney National Park to Muckross House before tackling the Ring of Kerry in the afternoon — both completely different but both stunning.
Siobhan K. · June 2024
★★★★★
Did the Gap of Dunloe by bike followed by a boat back across the lakes — one of the best half-days of our whole Ireland trip.
Wolfgang H. · September 2023
★★★★☆
Ring of Kerry was busy with coaches by mid-morning, but starting early from Killarney meant we had some stretches almost to ourselves.
Rachel D. · August 2024
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