Plizio Visual Lab

Slieve Bernagh

Plizio editorial teamUpdated: Jun 2026Data Sources

Mountain

Weather…

Slieve Bernagh is a prominent mountain range in eastern County Clare, overlooking Lough Derg and the town of Killaloe. With a maximum elevation of 532 meters at Moylussa, the massif has broad views across the Shannon Valley. Geologically, Slieve Bernagh is composed of Silurian siltstones and shales, forming a rugged surface. The region is historically significant as the heartland of the clan of High King Brian Boru. The strategic location allowed for the monitoring of traffic on the River Shannon in medieval times. Today, Slieve Bernagh is a popular spot for hikers, with the East Clare Way trail passing through the area. The slopes are partially forested, while the upper reaches feature heather and blanket moors. Slieve Bernagh represents an important ecological habitat for birds of prey. The range remains a dominant feature of the landscape in the midwest of Ireland, framing the shores of the country's third-largest lake.

Location: Ireland
Top sights: Cragnamurragh · Moylussa · Glennagalliagh Mountain
Nearby: Killaloe (9 km)

Best time to visit & climate

The most pleasant time to visit is Jun–Aug.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	5	5	6	8	11	14	15	15	13	10	8	6
Rain mm	118	92	86	73	84	90	100	107	91	108	132	124

📋 Practical info

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Getting there

The mountains of Slieve Bernagh are mostly approached from the surrounding towns in East Clare, particularly near the shores of Lough Derg. Walkers frequently start their ascents from local access roads or established trailheads leading up into the hills.

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Best season

To enjoy the spectacular views out over Lough Derg, visiting during the clear days of spring or summer is highly recommended. Winter transforms the terrain into a much tougher environment, with strong winds sweeping off the lake and across the exposed peaks.

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Terrain & paths

Expect a mix of forested lower slopes leading to steep, rocky terrain and heather-covered summits at higher elevations. The paths can be quite rugged and uneven, demanding steady footwork as you climb towards the prominent ridgelines.

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What to bring

Proper hiking boots with deep treads are necessary to cope with the steep inclines and potentially slippery rocky patches. A windproof outer layer is vital due to the high exposure, and always bring ample water for the demanding ascent.

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Parking

Parking can typically be found at designated forestry entrances or at popular access points near local communities. Space might be limited during weekends, so visitors should park carefully to ensure local traffic and emergency vehicles can always pass freely.

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Safety

The mountain ridges are highly exposed to sudden gusts and deteriorating weather moving quickly across the nearby lake. Walkers must stay alert, avoid walking too close to steep drops in poor visibility, and know when it is safer to turn back.

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Time needed

A comprehensive route covering the higher peaks of the range typically demands between four and six hours of concerted effort. If you choose to simply walk the lower forestry trails, expect to spend about two hours enjoying the immediate woodland.