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Phil Armitage CC BY-SA 4.0 Wikimedia Commons

Wild Nephin National Park

National Park

Remote park in County Mayo protecting blanket bog, the Nephin Beg mountains and peatland wilderness. Walkers seek rugged trails, dark-sky viewing and extensive bog landscapes.

Wild Nephin National Park LimerickGalwayWestport, County MayoEnnisShannon, County ClareKing John's Castle (Limerick)ConnemaraAchill IslandWild Nephin National Park

Wild Nephin National Park essentials

Address: Wild Nephin National Park, County Mayo, Ireland
Website: npws.ie
Hours: Park open daily; visitor-centre hours vary seasonally
Admission: Free entry to parklands

About Wild Nephin National Park

Wild Nephin National Park is a protected wilderness area in County Mayo, western Ireland, designated to conserve large tracts of Atlantic blanket bog and upland mountain habitats; it was first created in 1998 as Ballycroy National Park and later expanded.

The park is valued for remote walking, peatland ecosystems and mountain terrain. Key visitor experiences are lowland and upland bog landscape walks, routes into the Nephin Beg Range including the summit of Nephin (about 806 m), and wildlife and habitat interpretation at on-site facilities.

The park was established by the Irish state in 1998 and enlarged in a subsequent extension that broadened its protected area and scope for conservation and recreation. Management focuses on peatland preservation, controlled public access and restoration of degraded areas.

Located in northwest County Mayo in the province of Connacht, the park lies inland from the Atlantic coast and is reached via regional roads from nearby towns in the Erris area. The landscape is predominantly blanket bog, interspersed with mountain ranges and small lakes.

  • Establishment and expansion: Originally established as Ballycroy National Park in 1998, the protected area was expanded and rebranded as Wild Nephin following a major enlargement.
  • Blanket bog: The park preserves extensive Atlantic blanket bog, one of the largest relatively intact peatland systems in western Europe and of interest to ecology and conservation studies.

What to See#

  • Nephin Beg Range / Nephin peak: A rugged upland massif that includes the Nephin Beg Range and the summit of Nephin, the park’s highest point at about 806 m.
  • Owenduff/Nephin bog complex: An internationally important Atlantic blanket bog complex extending across much of the park and forming a largely intact peatland habitat.
  • Ballycroy/Wild Nephin visitor facilities: The visitor and interpretation facilities established to support walking routes and information on the park’s ecology and access.

Tips for Visiting Wild Nephin National Park

  • Plan visits in late spring through early autumn for longer daylight and firmer ground; much of the park is bogland and can be difficult underfoot after heavy rain.
  • Start at the national park visitor centre (the Ballycroy area serves as the regional gateway) to pick up up-to-date trail information, maps and advice on seasonal access and guided options.
  • Stick to marked trails and boardwalks to protect fragile bog habitats and avoid getting bogged down - allow extra time for slower, rough sections and for navigating remote stretches.
  • Bring a detailed map or GPS route and tell someone your intended route; parts of Wild Nephin are remote and cellular coverage can be patchy, so plan logistics and transport in advance.
When to Go

Best Time to Visit Wild Nephin National Park

Visit from late spring through summer for the best hiking conditions and longest daylight.

Late spring-summer
May-Aug · 8-18°C
Longest daylight, milder temperatures and the best conditions for hiking and exploring the bogs and peaks.
Autumn
Sep-Oct · 6-14°C
Crisp weather and changing colors-good for walking but conditions can be wet and windier.
Winter
Nov-Feb · 0-8°C
Cold, wet and often windy with shorter daylight; trails can be muddy or snow-affected and many facilities operate reduced hours.

Weather & Climate near Wild Nephin National Park

Climate

Wild Nephin National Park's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in July) and cold winters (coldest in January). Temperatures range from 2°C to 18°C. Abundant rainfall (1317 mm/year), wettest in November.

Air Quality: AQI 24 Good
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
24°
Warmest Month
-1°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor 3° - 8° 1° 145 mm overcast 86% 6.6 m/s 0.0 low 7.7h
February Poor 3° - 8° 1° 95 mm overcast 86% 6.4 m/s 0.1 low 9.5h
March Poor 4° - 10° 3° 108 mm overcast 85% 6.3 m/s 0.3 low 11.7h
April Acceptable 4° - 12° 5° 76 mm overcast 84% 5.4 m/s 0.7 moderate 13.9h
May Acceptable 7° - 14° 10° 81 mm overcast 84% 5.2 m/s 1.1 high 15.8h
June Good 9° - 16° 13° 77 mm overcast 85% 5.1 m/s 1.3 high 16.9h
July Good 11° - 18° 14° 78 mm overcast 86% 4.9 m/s 1.2 high 16.4h
August Acceptable 11° - 18° 14° 101 mm overcast 86% 4.8 m/s 0.9 moderate 14.7h
September Acceptable 9° - 16° 13° 119 mm overcast 85% 5.5 m/s 0.6 moderate 12.5h
October Acceptable 7° - 13° 10° 145 mm overcast 86% 5.9 m/s 0.2 low 10.3h
November Poor 5° - 10° 4° 149 mm overcast 86% 5.9 m/s 0.1 low 8.3h
December Poor 4° - 8° 2° 143 mm overcast 86% 6.2 m/s 0.0 low 7.1h