Mweelrea
Mountain Highest mountain in Connacht with jagged western ridge
On County Mayo’s Atlantic coast, Mweelrea-Connacht’s highest peak-pulls hillwalkers for the Mweelrea Horseshoe, rugged ridgelines and views down to Killary Harbour and offshore islands.
Mweelrea is a mountain massif on the west coast of County Mayo, Ireland, and its summit reaches 814 metres, making it the highest peak in the province of Connacht. The massif forms a steep coastal range with corries and ridgelines facing the Atlantic.
Popular hillwalking routes include ridge and horseshoe circuits that pass multiple summits and mountain lakes; routes are typically steep and can be exposed. The summit provides extensive views over Killary Harbour and the surrounding coastline on clear days.
The massif developed through glacial shaping and has long been used for sheep grazing and recreational hillwalking. Paths and marked routes have become established as the area has grown in popularity with walkers.
Mweelrea stands on the western seaboard of County Mayo, overlooking Killary Harbour and the Atlantic Ocean; the nearest towns for access and services include Louisburgh and Leenaun.
- Elevation and route note: At 814 metres the summit is the highest point in the province of Connacht and is commonly reached by routes forming a horseshoe around corries and ridges.
How to Get to Mweelrea #
Mweelrea is reached from County Mayo’s road network; the nearest major town is Westport. Drive from Westport roughly 40-50 km west toward Louisburgh/Delphi (allow about 45-75 minutes depending on exact start point and traffic) and park at the hillwalker car parks near the Delphi/Glencorrib area or the Lough Fee trailhead. From the roadhead the ascent is a mountain hike of several kilometres on marked/unmarked upland trails.
Tips for Visiting Mweelrea #
- Choose a clear summer day (June-September) and start very early to avoid boggy lower sections and afternoon weather changes common in the west of Ireland.
- Approach from the Delphi/Leenane side and follow established routes; allow 5-7 hours round trip depending on pace and conditions.
- Keep time for the summit panorama: on clear days the top offers sweeping views of Killary Harbour and the surrounding ranges, so plan your ascent to coincide with good visibility.
Best Time to Visit Mweelrea #
Best visited from late spring through early autumn for the most reliable hiking weather and safer conditions on trails.
Weather & Climate near Mweelrea #
Mweelrea'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 16°C. Abundant rainfall (1812 mm/year), wettest in January.
January
January is cold with highs of 7°C and lows of 2°C. The wettest month with heavy rain (203 mm), mostly overcast skies, and breezy conditions.
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February
February is the coolest month with highs of 7°C and lows of 2°C. Significant rainfall (137 mm), mostly overcast skies, and breezy conditions.
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March
March is cold with highs of 8°C and lows of 2°C. Significant rainfall (157 mm), mostly overcast skies, and breezy conditions.
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April
April is cold with highs of 10°C and lows of 3°C. Significant rainfall (103 mm), mostly overcast skies, and breezy conditions.
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May
May is cold with highs of 12°C and lows of 6°C. Significant rainfall (112 mm), mostly overcast skies, and breezy conditions.
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June
June is cool with highs of 14°C and lows of 8°C. Significant rainfall (103 mm), mostly overcast skies, and breezy conditions.
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July
July is cool with highs of 16°C and lows of 10°C. Significant rainfall (109 mm), mostly overcast skies, and breezy conditions.
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August
August is cool with highs of 16°C and lows of 10°C. Significant rainfall (137 mm), mostly overcast skies, and breezy conditions.
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September
September is cool with highs of 14°C and lows of 8°C. Significant rainfall (163 mm), mostly overcast skies, and breezy conditions.
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October
October is cold with highs of 11°C and lows of 6°C. Significant rainfall (194 mm), mostly overcast skies, and breezy conditions.
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November
November is cold with highs of 9°C and lows of 4°C. Significant rainfall (197 mm), mostly overcast skies, and breezy conditions.
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December
December is cold with highs of 8°C and lows of 3°C. Significant rainfall (197 mm), mostly overcast skies, and breezy conditions.
