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Tony Webster from Portland, Oregon, United States CC BY-SA 4.0 Wikimedia Commons

Slieve League

Mountain

On County Donegal's Atlantic coast, Slieve League's sea cliffs rise sharply above open ocean. Walkers and photographers take narrow trails and coastal routes for broad sea views and rugged headlands.

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In this guide

Slieve League essentials

Hours: Open 24 hours
Admission: Free (natural area)

About Slieve League

Slieve League (Sliabh Liag) are steep sea cliffs on the Atlantic coast of County Donegal, Ireland, reaching roughly 601 metres above sea level. They are among the highest coastal cliffs in Europe.

Dramatic vertical cliffs and coastal panoramas are the main attractions, with a network of trails and a popular roadside viewpoint at Bunglass that gives direct views down to the sea. Walkers can follow steeper paths along the ridge for more challenging routes and closer cliff-edge views.

The cliffs and surrounding land have a long rural and cultural history within Donegal, used traditionally for grazing and as part of local coastal life. They have been a noted landscape feature in Irish travel accounts since the 19th century.

Slieve League sits on the Atlantic-facing coast of southwest County Donegal, on the northwestern edge of the Republic of Ireland, overlooking the Atlantic Ocean.

  • Height: The cliffs rise to about 601 metres above sea level, making them among the highest sea cliffs in Ireland and Europe.

What to See#

  • Bunglass viewpoint: The Bunglass viewpoint lies at the top of the main access road and provides one of the most accessible panoramic views of the cliffs and the Atlantic. A steep walking route continues along the cliff edge for closer views for experienced walkers.
When to Go

Best Time to Visit Slieve League

Best visited in summer (June-August) for the most reliable weather and safest conditions for cliff-top walks.

Summer (best weather)
June-August · 12-18 °C
Mild and relatively stable weather-best conditions for walking to the cliffs and enjoying the views.
Spring / Autumn (shoulder)
April-May, September-October · 8-14 °C
Cooler and often quieter with good visibility on calm days; weather can change quickly, so layers and waterproofs are advised.
Winter (unpredictable)
November-March · 4-10 °C
Wet, windy and often foggy or stormy; cliff paths can be slippery or closed and conditions are less suitable for casual visits.

Weather & Climate near Slieve League

Climate

Slieve League's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in July) and cold winters (coldest in January). Temperatures range from 2°C to 16°C. Abundant rainfall (1866 mm/year), wettest in December.

Air Quality: AQI 23 Good
Best Time to Visit
JulyAugustApril
Temperature & Rainfall
Temperature Range
25°
Warmest Month
-1°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor 2° - 7° -1° 204 mm overcast 86% 9.6 m/s 0.0 low 7.7h
February Poor 2° - 7° -1° 144 mm overcast 86% 9.3 m/s 0.1 low 9.5h
March Poor 2° - 8° 0° 158 mm overcast 85% 8.7 m/s 0.3 low 11.7h
April Poor 3° - 9° 2° 107 mm overcast 84% 7.5 m/s 0.7 moderate 13.9h
May Poor 6° - 12° 6° 108 mm overcast 83% 7.1 m/s 1.1 high 15.8h
June Poor 8° - 14° 11° 106 mm overcast 83% 6.8 m/s 1.3 high 16.9h
July Acceptable 10° - 16° 13° 114 mm overcast 84% 6.5 m/s 1.2 high 16.4h
August Acceptable 10° - 16° 13° 137 mm overcast 84% 6.6 m/s 0.9 moderate 14.7h
September Poor 8° - 14° 11° 167 mm overcast 85% 7.5 m/s 0.6 moderate 12.5h
October Poor 6° - 11° 5° 206 mm overcast 85% 8.4 m/s 0.2 low 10.3h
November Poor 4° - 9° 1° 207 mm overcast 86% 8.7 m/s 0.1 low 8.3h
December Poor 3° - 7° 0° 208 mm overcast 86% 8.8 m/s 0.0 low 7.1h
Getting There & Around

How to Get to Slieve League

Slieve League (Sliabh Liag) is on the west coast of County Donegal, Ireland, with main visitor access from the nearby village of Teelin where there is a car park and visitor centre for the cliffs. Drive via the regional roads on the Inishowen/Donegal peninsula to Teelin and park at the Sliabh Liag/visitor centre car park; from there paved paths and short walks lead to the main viewing points. Local rural roads provide the most direct access - public bus service is limited, so many visitors arrive by car or tour.

Tips for Visiting Slieve League

  • Drive to the main car park above the cliffs and take the marked Bunglas/upper trail to the main viewing platforms - these give the safest, most dramatic cliff-top panoramas without long hikes.
  • Visit on a clear weekday morning for the best visibility and fewer day-trippers; Slieve League's views can be quickly obscured by Atlantic mist so check the forecast before committing the trip.
  • If you have time, take the longer descent path toward the lower sea-level vantage points for a different perspective of the cliffs and sea; many visitors only see the upper viewpoints and miss the coastal approaches.