Holyhead Mountain Mountain

Highest point on Holy Island, coastal cliffs and views

The highest point on Holy Island off Anglesey, reached via a coastal footpath. Walkers come for cliffside routes, seabird colonies and the remnants of Iron Age field systems on the slope.

Main image

Holyhead Mountain at a Glance#

Address: Holyhead Mountain, Holy Island (Ynys Gybi), Anglesey, Wales, UK

About Holyhead Mountain#

Holyhead Mountain is the highest point on Holy Island off the northwest coast of Anglesey in Wales, reaching roughly 220 metres above sea level. It is a prominent coastal hill on the island.

The area offers coastal walking routes with sea cliffs and wide views over the Irish Sea, and it is frequented by walkers and nature observers for the exposed ridge-top paths and maritime scenery. The summit and slopes are open access and form part of local outdoor recreation.

The mountain and surrounding coastal landscape were shaped by coastal erosion and glacial processes and have been used historically for grazing and local transit. Today it remains a natural landmark closely associated with the town of Holyhead.

Holyhead Mountain sits on Holy Island, immediately adjacent to the town of Holyhead and separated from mainland Anglesey by a short causeway and harbour.

  • Height and walking: Highest point on Holy Island (Anglesey) at about 220 metres, offering coastal walking routes and exposed ridge-top trails to the summit.

How to Get to Holyhead Mountain#

Holyhead Mountain is on Holy Island, Anglesey. From Holyhead town centre it’s a 20-30 minute walk to the base of the mountain; local roads and footpaths lead up the slopes. Holyhead is connected by rail from mainland Wales (trains from Bangor and further afield) and by ferry services to Ireland.

Tips for Visiting Holyhead Mountain#

  • Plan for strong wind and sudden weather changes; bring layers suitable for cold, even in summer.
  • The eastern slope has interesting birdlife and offers quieter trails than the main summit approach.
  • Combine a climb with a visit to Holyhead (the town) for ferry timetables and local history.

Best Time to Visit Holyhead Mountain#

Summer and late spring are best for accessibility and wildlife, but expect variable coastal weather year-round.

Summer
June-August · 10-18°C
Best for calmer weather and longer daylight for walks.
Spring
April-May · 6-12°C
Nesting seabirds and wildflowers on the slopes.
Autumn
September-October · 8-15°C
Fewer people, dramatic sea weather.

Weather & Climate near Holyhead Mountain#

Climate

Holyhead Mountain's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in August) and cold winters (coldest in February). Temperatures range from 3°C to 18°C. Moderate rainfall (909 mm/year).

Air Quality: AQI 28 Good
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
25°
Warmest Month
-2°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor 3° - 8° 1° 93 mm overcast 85% 8.2 m/s 0.0 low 7.9h
February Poor 3° - 8° 1° 68 mm overcast 86% 7.6 m/s 0.1 low 9.6h
March Acceptable 4° - 9° 2° 70 mm overcast 86% 7.1 m/s 0.4 low 11.7h
April Acceptable 5° - 11° 5° 57 mm overcast 84% 5.9 m/s 0.8 moderate 13.8h
May Acceptable 7° - 14° 11° 50 mm overcast 84% 5.6 m/s 1.2 high 15.7h
June Good 10° - 16° 13° 57 mm overcast 85% 5.2 m/s 1.4 high 16.7h
July Good 12° - 18° 15° 56 mm overcast 86% 5.1 m/s 1.3 high 16.2h
August Good 12° - 18° 15° 73 mm overcast 85% 5.2 m/s 1.0 high 14.6h
September Good 11° - 16° 13° 80 mm overcast 84% 6.0 m/s 0.6 moderate 12.5h
October Acceptable 8° - 13° 11° 97 mm overcast 84% 7.1 m/s 0.3 low 10.4h
November Poor 6° - 10° 4° 107 mm overcast 84% 7.4 m/s 0.1 low 8.4h
December Poor 4° - 8° 2° 101 mm overcast 85% 7.9 m/s 0.0 low 7.3h

Nearby Attractions to Holyhead Mountain#