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Eryri National Park

National Park · Wales, 🇬🇧 United Kingdom
Population 24,416
Area 2,096 km²
Time zone Europe/London
Official website snowdonia.gov.wales
Eryri National Park

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Eryri National Park: The Absolute Essentials

Eryri National Park encompasses over 800 square miles of North Wales, characterized by its glaciated landforms and medieval history. The region features UNESCO-listed fortifications like Conwy and Harlech Castles, dating back to the 13th-century reign of Edward I. Visitors can reach the summit of Snowdon, the highest peak in Wales, via the historic rack-and-pinion railway from Llanberis. The landscape also includes the Italianate-style village of Portmeirion, the 15th-century Tu Hwnt i'r Bont building, and natural landmarks such as the glacial lake Llyn Llydaw and Aber Falls.

13 places
Jynto / Public domain

Eryri Peaks & Summits

Eryri (Snowdonia) National Park contains some of Britain's most rugged terrain across several distinct mountain ranges. This collection highlights the geological diversity of the region, from the sharp, knife-edged ridge of Crib Goch to the ancient, glaciated landscapes of the Carneddau and Glyderau. It features prominent summits like Cadair Idris in the south and the challenging, boulder-strewn peaks of the Rhinogydd. These mountains represent the highest points in Wales, including Carnedd Dafydd and Garnedd Ugain, offering essential routes for experienced hikers and those seeking the historic peaks of the Welsh 3000s.

11 places
Hchc2009 / CC BY-SA 3.0

Eryri's Ancient Heritage

This collection spans millennia of human history in North Wales, from Neolithic burial chambers at Dyffryn Ardudwy to the military precision of Roman forts like Caer Gai. It highlights the architectural contrast between native Welsh strongholds, such as Dolbadarn and Castell y Bere, and the imposing UNESCO-listed fortresses of Edward I at Conwy and Harlech. The list also includes the Cistercian ruins of Cymer Abbey and the Bronze Age stone circle overlooking Penmaenmawr, illustrating the region's diverse religious and defensive evolution.

12 places
Pjposullivan / CC BY-SA 3.0

Eryri's Spiritual Heritage

Eryri’s religious landscape spans over a millennium of history, featuring early medieval foundations and Victorian architectural gems. This collection includes Tywyn’s St Cadfan’s Church, home to the earliest known written Welsh, and the remote St David’s at Tal-y-llyn. From the Grade II listed Capel Salem to the inscribed 5th-century stones at Penmachno, these sites reflect the region's deep spiritual roots, Methodist revival history, and the evolution of Welsh ecclesiastical architecture within the Snowdonia landscape.

12 places
Steve Foster / CC BY-SA 3.0

Eryri's Natural Wonders

Eryri National Park's landscape is defined by its glacial history, featuring Wales' largest natural lake, Llyn Tegid, and the high-altitude Llyn Llydaw on the flanks of Yr Wyddfa (Snowdon). The region's steep topography creates numerous cascades, including the 120-foot drop of Rhaeadr Fawr and the multi-tiered Swallow Falls. This collection highlights significant hydrological sites, from the industrial heritage of the Coedty Reservoir to the secluded falls of the Coed-y-Brenin forest and the Dolgoch ravine.

20 places

Eryri National Park — Map

Eryri National Park — Map

Climate & when to visit

Select a month

Typical weather in January

Poor
  • 5° (feels like 1°) · extremes -3°–10°
  • 2° at night
  • 20 rainy days
  • 0 sunny days
  • 2 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 0 · low

Typical weather in February

Poor
  • 6° (feels like 1°) · extremes -3°–10°
  • 2° at night
  • 18 rainy days
  • 2 sunny days
  • 3 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 1 · low

Typical weather in March

Poor
  • 8° (feels like 3°) · extremes -2°–12°
  • 2° at night
  • 17 rainy days
  • 4 sunny days
  • 4 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 2 · low

Typical weather in April

Poor
  • 10° (feels like 7°) · extremes -1°–16°
  • 4° at night
  • 16 rainy days
  • 6 sunny days
  • 6 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 3 · moderate

Typical weather in May

Fair
  • 14° (feels like 11°) · extremes 2°–19°
  • 6° at night
  • 16 rainy days
  • 6 sunny days
  • 7 hours of sunshine per day
  • Dry air
  • Calm winds
  • UV index 4 · moderate

Typical weather in June

Fair
  • 16° (feels like 14°) · extremes 6°–22°
  • 9° at night
  • 17 rainy days
  • 4 sunny days
  • 7 hours of sunshine per day
  • Dry air
  • Calm winds
  • UV index 5 · moderate

Typical weather in July

Fair
  • 17° (feels like 16°) · extremes 8°–23°
  • 11° at night
  • 19 rainy days
  • 3 sunny days
  • 6 hours of sunshine per day
  • Dry air
  • Calm winds
  • UV index 5 · moderate

Typical weather in August

Fair
  • 17° (feels like 16°) · extremes 8°–22°
  • 11° at night
  • 21 rainy days
  • 3 sunny days
  • 6 hours of sunshine per day
  • Dry air
  • Calm winds
  • UV index 4 · moderate

Typical weather in September

Fair
  • 16° (feels like 13°) · extremes 6°–20°
  • 10° at night
  • 18 rainy days
  • 3 sunny days
  • 5 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 3 · moderate

Typical weather in October

Poor
  • 12° (feels like 9°) · extremes 3°–16°
  • 7° at night
  • 21 rainy days
  • 1 sunny day
  • 3 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 1 · low

Typical weather in November

Poor
  • 8° (feels like 4°) · extremes 0°–13°
  • 5° at night
  • 22 rainy days
  • 0 sunny days
  • 2 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 0 · low

Typical weather in December

Poor
  • 6° (feels like 2°) · extremes -2°–11°
  • 3° at night
  • 21 rainy days
  • 0 sunny days
  • 1 hour of sunshine per day
  • Dry air
  • Light breeze
  • UV index 0 · low

Climate data: NASA POWER (MERRA-2) · 1996–2025

Practical information

Currency
British Pound GBP £ · Card payments · Widely accepted
Emergency numbers
999 Police · Ambulance · Fire brigade
Electricity
Type G
230 V · 50 Hz
Languages
English
Tap water
Safe to drink
Driving side
Left
Calling code
+44
Learn more

Tours & Activities

Conwy Castle
Drive
Snowdonia
Drive
Snowdon Mountain Railway

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