Knocknaboley is a 470 m peak in County Wicklow, in the Municipal District of Baltinglass in Ireland. It belongs to the Wicklow Mountains, part of the wider South-Eastern Caledonian Province in the British Isles and the Northwest European Highlands.
It is a modest summit by Wicklow standards, ranked 97th highest among the 135 named peaks in the range. The hill sits in upland country with neighbouring summits close by, and the highest point in the Wicklow Mountains, Lugnaquilla, lies about 12 km to the south-east.
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Knocknaboley lies in the Wicklow Mountains of County Wicklow, within the Municipal District of Baltinglass. The mountain is part of the broad upland spine of south-eastern Ireland, where rounded hills and higher peaks alternate with open moorland and rough grassland. At 470 m, it is well below the main summits of the range, and its position makes it one of the lower named peaks in Wicklow, ranked 97th out of 135.
The surrounding landscape is typical of the Irish uplands: exposed slopes, patchy vegetation and a network of nearby hills rather than a single isolated summit. From Knocknaboley, the terrain rises and falls quickly, with several higher neighbours close enough to shape the local skyline and the feel of the walk.
The nearest higher peak is Coire Breac, which rises 61 m above Knocknaboley and lies just 1.4 km away to the south. Several other nearby hills are also higher, so the summit sits among a cluster of close neighbours rather than dominating the area.
From Knocknaboley, the highest peaks within 25 km are spread across the Wicklow Mountains and give a clear sense of the wider upland setting. To the south-east lies Lugnaquilla at 925 m, about 11.8 km away. Mullaghcleevaun is 847 m and sits about 11.3 km to the north-east, while Tonelagee reaches 816 m and lies about 11.7 km to the east.
Other major summits in range include Clocharnach (800 m, 13.2 km south-east), Camenabologue (758 m, 7.9 km south-east) and Kippure (757 m, 20.2 km north-east). These peaks show how Knocknaboley sits on the lower edge of a much higher mountain group.
Knocknaboley belongs to the Wicklow Mountains, the narrowest part of a chain that runs from the Northwest European Highlands through the British Isles, Ireland and the South-Eastern Caledonian Province. The highest peak in the range is Lugnaquilla at 925 m, about 12 km to the south-east of Knocknaboley.
The Wicklow Mountains contain 135 named peaks, and Knocknaboley ranks 97th by elevation among them. That places it in the lower half of the range, but still within a landscape where many summits are close together and the higher ground remains within easy sight.
Climate estimates from NASA POWER data for 2001–2020 suggest that the summit of Knocknaboley is cool but above freezing through the year. The warmest month is about July, with a mean temperature of about 12 °C, while February is the coldest month at about 4 °C. Annual precipitation in the surrounding area is about 1,100 mm.
The wettest month is about November, with around 120 mm of rain, and the driest is about April, with around 65 mm. Even in winter the summit stays near or above freezing on average, so rain, wind and damp ground are more likely concerns than deep snow for much of the year.
For a short hill walk on Knocknaboley, the most comfortable conditions are usually found in the warmer months, when temperatures are higher and daylight is longer. The summit climate stays above freezing on average in every month, but the wetter part of the year is late autumn, so November is likely to bring softer ground and more frequent rain.
Spring and early summer can offer a good balance of milder temperatures and lower rainfall than the wettest months. In any season, expect changeable Irish mountain weather, with wind and cloud able to move in quickly across the Wicklow uplands.
The hills around Knocknaboley are typical of the Wicklow uplands, with open grassland, heather, rough moorland and exposed slopes. In places the ground is likely to be wet and peaty, especially after rain, and the vegetation is usually low and hardy rather than wooded near the summit. Such terrain supports common upland birds and small mammals, while the open ground gives wide views across the surrounding hills.
As elsewhere in the Irish mountains, walkers should expect a landscape shaped by weather, grazing and thin soils rather than by dramatic rock scenery.
Knocknaboley is a straightforward-height hill, but the ground can still be wet and uneven, so sturdy footwear is sensible. A windproof layer is useful even on mild days, because exposed Wicklow summits can feel colder than the valley temperatures suggest. In the warmer months, it is sensible to check for ticks after walking through long grass or rough vegetation.
For emergencies in the Irish mountains, call 112 or 999 and ask for the Gardaí, who will contact the volunteer Mountain Rescue teams. Carry a map and compass, and download maps before setting out, since mobile coverage in the hills can be unreliable.
Knocknaboley is 97th highest among the 135 named peaks in the Wicklow Mountains, so it sits well below the main summits of the range. Its nearest higher neighbour is Coire Breac, only 1.4 km to the south, which shows how closely packed the local hills are.
The highest peak in the range, Lugnaquilla, is about 12 km away to the south-east. That distance is short enough for the major Wicklow summits to remain part of the same mountain skyline, even though Knocknaboley itself is a much lower point on the ridge system.
How high is Knocknaboley? It rises to 470 m above sea level.
Where is Knocknaboley? It is in County Wicklow, in the Municipal District of Baltinglass, in the Wicklow Mountains of Ireland.
What is the nearest higher peak? The nearest higher peak is Coire Breac, 1.4 km to the south.
What are the main hills around it? Nearby peaks include Church Mountain to the west, Round Hill to the south-east, Slievecorragh to the north-west and Lobawn farther to the south.
What can you see from the summit? The highest nearby peaks include Lugnaquilla to the south-east, Mullaghcleevaun to the north-east and Tonelagee to the east.
Will my phone work on Knocknaboley? Coverage in the hills is patchy and depends on the operator. 112 reaches emergency services over any available network, and maps should be downloaded before setting out.
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