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Kifster CC BY-SA 4.0 Wikimedia Commons

Sawel Mountain

Mountain

Sawel Mountain, the highest summit of the Sperrin Mountains in Northern Ireland, offers upland walking, peatland terrain and broad summit views; hillwalkers follow established routes from nearby villages.

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In this guide

Sawel Mountain essentials

Address: Sawel Mountain, Sperrin Mountains, Northern Ireland (grid references vary)

About Sawel Mountain

Sawel Mountain (Slieve Sawel) is a peak in Northern Ireland and the highest point of the Sperrin Mountains, with an elevation of about 678 metres. It is a prominent upland landmark for the region.

Hillwalkers use paths and open heathland to reach the summit; the mountain offers moorland scenery and views over the surrounding Sperrins. Routes are typically day hikes across boggy and peaty terrain, so boots and weather-appropriate gear are advisable.

The mountain has no significant built structures but has long been part of local upland grazing and recreational use. It features typical upland vegetation and landscape shaped by long-term pastoral activity rather than recent development.

Sawel sits on the upland spine of the Sperrin Mountains in Northern Ireland, near the border between County Londonderry and County Tyrone. It overlooks broad peatlands and ridges characteristic of the Sperrins.

  • Height and prominence: At 678 metres above sea level it is the highest peak in the Sperrin Mountains and a common objective for day hikes and ridge walks in Northern Ireland.
Things to Do
When to Go

Best Time to Visit Sawel Mountain

Late spring through early autumn offers the most reliable weather and longest daylight for hikes.

Summer
Jun-Aug · 10-18°C
Best hiking conditions with longer daylight and milder weather.
Autumn
Sep-Oct · 6-14°C
Crisper air and often clearer views; watch for boggy ground.

Weather & Climate near Sawel Mountain

Climate

Sawel Mountain's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in July) and cold winters (coldest in January). Temperatures range from 1°C to 16°C. Heavy rainfall (2060 mm/year), wettest in November.

Air Quality: AQI 26 Good
Best Time to Visit
JulyAugustMay
Temperature & Rainfall
Temperature Range
25°
Warmest Month
-4°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor 1° - 5° -2° 220 mm overcast 92% 7.6 m/s 0.0 low 7.7h
February Poor 1° - 6° -2° 164 mm overcast 91% 7.4 m/s 0.1 low 9.5h
March Poor 1° - 7° -1° 178 mm overcast 89% 7.2 m/s 0.3 low 11.7h
April Poor 2° - 9° 2° 125 mm overcast 86% 6.1 m/s 0.7 moderate 13.9h
May Acceptable 5° - 12° 5° 116 mm overcast 85% 5.8 m/s 1.0 moderate 15.8h
June Acceptable 7° - 14° 11° 121 mm overcast 85% 5.5 m/s 1.2 high 16.9h
July Acceptable 10° - 16° 13° 131 mm overcast 86% 5.3 m/s 1.1 high 16.4h
August Acceptable 9° - 16° 13° 158 mm overcast 87% 5.2 m/s 0.9 moderate 14.7h
September Poor 8° - 13° 11° 181 mm overcast 88% 5.8 m/s 0.5 moderate 12.5h
October Poor 5° - 10° 4° 218 mm overcast 90% 6.7 m/s 0.2 low 10.3h
November Poor 3° - 7° 0° 224 mm overcast 91% 7.0 m/s 0.1 low 8.3h
December Poor 1° - 6° -1° 224 mm overcast 92% 6.9 m/s 0.0 low 7.1h
Getting There & Around

How to Get to Sawel Mountain

Common approaches begin from parking areas along the B46 and local lanes serving the Sperrins. Access routes vary; consult local walking guides and maps for preferred trails and seasonal conditions.

Tips for Visiting Sawel Mountain

  • Bring waterproof layers - northern Irish weather turns fast.
  • Plan routes with OS or local mountain maps; some approaches cross peat and bog.
  • Start early to maximize daylight and watch for sheep grazing on higher slopes.