Wild Nephin National Park

National Park Irish park protecting remote blanket bog and mountains

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.

Main image

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.
Wild Nephin National Park
Wild Nephin National Park, County Mayo, Ireland
54.0167, -9.7000
Park open daily; visitor-centre hours vary seasonally
Free entry to parklands

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.

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

January

January is the coolest month with highs of 8°C and lows of 3°C. Significant rainfall (145 mm), mostly overcast skies, and breezy conditions.

36 Poor

Comfort

Feels Like Cold
C
Temperature
86%
Humidity
Very Humid

Weather

145 mm
Rainfall
6.6 m/s
Wind
Breezy
0.0
UV Index
Low
7.7h daylight

February

February is cold with highs of 8°C and lows of 2°C. Regular rainfall (95 mm), mostly overcast skies, and breezy conditions.

40 Poor

Comfort

Feels Like Cold
C
Temperature
86%
Humidity
Very Humid

Weather

95 mm
Rainfall
6.4 m/s
Wind
Breezy
0.1
UV Index
Low
9.5h daylight

March

March is cold with highs of 10°C and lows of 4°C. Significant rainfall (108 mm), mostly overcast skies, and breezy conditions.

46 Poor

Comfort

Feels Like Cold
C
Temperature
10°
85%
Humidity
Very Humid

Weather

108 mm
Rainfall
6.3 m/s
Wind
Breezy
0.3
UV Index
Low
11.7h daylight

April

April is cold with highs of 12°C and lows of 4°C. Moderate rainfall (76 mm) and mostly overcast skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
12°
84%
Humidity
Very Humid

Weather

76 mm
Rainfall
5.4 m/s
Wind
Light Breeze
0.7
UV Index
Moderate
13.9h daylight

May

May is cool with highs of 14°C and lows of 7°C. Regular rainfall (81 mm) and mostly overcast skies.

54 Acceptable

Comfort

10°
Feels Like Cool
10°C
Temperature
14°
84%
Humidity
Very Humid

Weather

81 mm
Rainfall
5.2 m/s
Wind
Light Breeze
1.1
UV Index
High
15.8h daylight

June

June is cool with highs of 16°C and lows of 9°C. Moderate rainfall (77 mm) and mostly overcast skies.

60 Good

Comfort

13°
Feels Like Cool
13°C
Temperature
16°
85%
Humidity
Very Humid

Weather

77 mm
Rainfall
5.1 m/s
Wind
Light Breeze
1.3
UV Index
High
16.9h daylight

July

July is cool with highs of 18°C and lows of 11°C. Moderate rainfall (78 mm) and mostly overcast skies.

60 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
11° 18°
86%
Humidity
Very Humid

Weather

78 mm
Rainfall
4.9 m/s
Wind
Light Breeze
1.2
UV Index
High
16.4h daylight

August

August is cool with highs of 18°C and lows of 11°C. Significant rainfall (101 mm) and mostly overcast skies.

58 Acceptable

Comfort

14°
Feels Like Cool
14°C
Temperature
11° 18°
86%
Humidity
Very Humid

Weather

101 mm
Rainfall
4.8 m/s
Wind
Light Breeze
0.9
UV Index
Moderate
14.7h daylight

September

September is cool with highs of 16°C and lows of 9°C. Significant rainfall (119 mm) and mostly overcast skies.

58 Acceptable

Comfort

13°
Feels Like Cool
13°C
Temperature
16°
85%
Humidity
Very Humid

Weather

119 mm
Rainfall
5.5 m/s
Wind
Light Breeze
0.6
UV Index
Moderate
12.5h daylight

October

October is cool with highs of 13°C and lows of 7°C. Significant rainfall (145 mm) and mostly overcast skies.

50 Acceptable

Comfort

10°
Feels Like Cool
10°C
Temperature
13°
86%
Humidity
Very Humid

Weather

145 mm
Rainfall
5.9 m/s
Wind
Light Breeze
0.2
UV Index
Low
10.3h daylight

November

November is cold with highs of 10°C and lows of 5°C. The wettest month with heavy rain (149 mm) and mostly overcast skies.

46 Poor

Comfort

Feels Like Cold
C
Temperature
10°
86%
Humidity
Very Humid

Weather

149 mm
Rainfall
5.9 m/s
Wind
Light Breeze
0.1
UV Index
Low
8.3h daylight

December

December is cold with highs of 8°C and lows of 4°C. Significant rainfall (143 mm), mostly overcast skies, and breezy conditions.

36 Poor

Comfort

Feels Like Cold
C
Temperature
86%
Humidity
Very Humid

Weather

143 mm
Rainfall
6.2 m/s
Wind
Breezy
0.0
UV Index
Low
7.1h daylight

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