MacGillycuddy's Reeks Mountains

Ireland's highest mountain range with rugged peaks

A rugged mountain range in County Kerry that includes Carrauntoohil, Ireland's highest peak; popular with hillwalkers, ridge scramblers and multi‑day trekking routes.

Main image
Main image

MacGillycuddy's Reeks at a Glance#

About MacGillycuddy's Reeks#

MacGillycuddy’s Reeks is the highest mountain range in Ireland, located in County Kerry on the Iveragh Peninsula. The range contains Ireland’s tallest peaks and is the principal upland area for serious hillwalking and mountaineering in the country.

The range’s best-known summit is Carrauntoohil (1,038 m); neighbouring peaks Beenkeragh (1,010 m) and Caher (1,001 m) form steep ridges and are commonly traversed together on routes such as the Coomloughra Horseshoe. The terrain includes steep corries, rocky ridges and narrow cols that attract experienced hikers and scramblers.

Historically used for hill farming and seasonal grazing, the Reeks have become established as a recreational mountain area with marked paths, guides and rescue infrastructure. Conservation and safety guidance advise proper equipment and local knowledge for high-level walks.

The range lies in southwest Ireland, within County Kerry, with Killarney and Killorglin the nearest towns providing access, accommodation and services for visitors.

  • Hillwalking and exposure: Contains Ireland’s three highest peaks and offers exposed ridge routes and scrambling; weather can change rapidly and some routes involve steep, rocky terrain.

What to See#

  • Carrauntoohil (1,038 m): Ireland’s highest summit, Carrauntoohil, at 1,038 metres, which is the principal objective for many ridge and scrambling routes.
  • Beenkeragh and Caher: The neighbouring peaks Beenkeragh (1,010 m) and Caher (1,001 m) form the core of the high ridge and are often combined with Carrauntoohil on extended routes.
  • Coomloughra Horseshoe: A classic high-level walking route that links the main peaks around the Coomloughra horseshoe and is popular for experienced hillwalkers and scramblers.

How to Get to MacGillycuddy's Reeks#

MacGillycuddy’s Reeks are a remote mountain range in County Kerry best accessed by road. The usual base towns are Killarney or Killorglin; from Killarney take the N71 and then local R-roads toward the western Reeks-driving time to different trailheads typically ranges from about 30-60 minutes depending on which part of the range you aim for, so allow 20-45 km of driving from Killarney.

Public transport into the hills is limited: take bus or train to Killarney and then a local taxi or guided hill shuttle to trailheads. Once at a trailhead expect to hike in from the roadside car parks (walking distances vary by route).

Tips for Visiting MacGillycuddy's Reeks#

  • Start very early for long ridge routes (e.g., routes to Carrauntoohil via the Hag's Glen/Devil's Ladder) - weather changes quickly and an early start reduces exposure to afternoon fog and to other walkers.
  • Treat exposed sections and narrow ridges seriously: many routes include scrambling and loose ground, so consider hiring a locally qualified mountain leader if you lack experience in navigation and Irish mountain weather.
  • If you want fewer people on the classic routes, avoid weekends and bank holidays; weekday starts and alternative approaches (less-used spurs rather than the Devil's Ladder) reduce crowding.

Best Time to Visit MacGillycuddy's Reeks#

Late spring through summer is the best time to visit for safer, clearer conditions and longer daylight for hiking the Reeks.

Best for hiking (Late spring-Summer)
May-Sep · 8-18°C
Warmer, longer days and generally more stable conditions for hillwalking and scrambling - the preferred season for most hikers.
Shoulder seasons
Apr & Oct · 5-15°C
Cooler and wetter than summer but with fewer visitors; conditions can change quickly so be prepared for wind and rain.
Winter
Nov-Mar · 0-8°C
Cold, very wet and often windy with limited visibility and hazardous ground - not recommended for casual hiking.

Weather & Climate near MacGillycuddy's Reeks#

Climate

MacGillycuddy's Reeks's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in July) and cold winters (coldest in February). Temperatures range from 2°C to 15°C. Heavy rainfall (2485 mm/year), wettest in January.

Air Quality: AQI 28 Good
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
25°
Warmest Month
-3°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor 2° - 6° -2° 289 mm overcast 88% 10.8 m/s 0.1 low 8.2h
February Poor 2° - 6° -2° 217 mm overcast 87% 10.6 m/s 0.2 low 9.8h
March Poor 2° - 7° -2° 222 mm overcast 86% 9.9 m/s 0.4 low 11.7h
April Poor 2° - 8° 0° 149 mm partly cloudy 85% 8.2 m/s 0.8 moderate 13.7h
May Poor 5° - 11° 4° 155 mm overcast 84% 7.9 m/s 1.2 high 15.4h
June Poor 7° - 13° 10° 136 mm overcast 84% 7.2 m/s 1.4 high 16.3h
July Poor 9° - 15° 12° 137 mm overcast 86% 6.9 m/s 1.4 high 15.9h
August Poor 9° - 15° 12° 175 mm overcast 86% 7.0 m/s 1.1 high 14.4h
September Poor 7° - 13° 7° 200 mm overcast 86% 7.9 m/s 0.7 moderate 12.5h
October Poor 5° - 10° 3° 257 mm overcast 87% 9.2 m/s 0.3 low 10.5h
November Poor 3° - 8° 0° 264 mm overcast 88% 10.0 m/s 0.1 low 8.7h
December Poor 2° - 7° -1° 284 mm overcast 88% 10.3 m/s 0.0 low 7.7h

Nearby Attractions to MacGillycuddy's Reeks#