Snowdonia Park

Welsh national park of mountains, lakes, and trails

Snowdonia National Park in Wales features Mount Snowdon, a network of footpaths, a mountain railway and nearby slate villages. Hikers, climbers and cyclists come for exposed ridgelines, valley lakes and industrial‑heritage museums.

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Snowdonia at a Glance#

Website: https://www.snowdonia.gov.wales/

Hours: Park open year‑round (specific facilities/paths seasonal)

Admission: Free (national park)

About Snowdonia#

Snowdonia is a mountainous region in northwestern Wales centred on the national park often known by its Welsh name, Eryri. It contains the highest mountains in Wales and is a major area for hiking, climbing, and outdoor recreation.

The region includes distinctive peaks, steep valleys and upland lakes; the highest summit, Snowdon (Yr Wyddfa), reaches 1,085 metres (3,560 feet) and has multiple marked routes of varying difficulty and a mountain railway that runs close to the summit. Popular visitor bases include towns and villages such as Llanberis and Betws-y-Coed, which provide services, transport links and visitor information.

The area has diverse recreational offers from short lakeside walks to multi-day ridge walks and contains historic slate-quarry landscapes as well as natural moorland. Conservation management balances tourism, farming and habitat protection across the park.

Snowdonia lies in northwest Wales and covers a substantial upland area; the nearest larger towns and transport hubs include Bangor and Caernarfon, with road and rail links connecting to other parts of Wales and England.

  • Snowdon height and access: The peak known as Snowdon (Yr Wyddfa) is 1,085 m high; ascent routes vary from steep scrambles to graded walking paths and a summit railway reaches an upper station near the top.

What to See#

  • Snowdon (Yr Wyddfa): Yr Wyddfa / Snowdon, the highest peak in Wales at 1,085 metres (3,560 feet), with several established paths and a mountain railway reaching near the summit.
  • Llanberis and mountain access: Llanberis Pass and the village of Llanberis, a common base for climbs and rides; several visitor centres and mountain transport options are located here.
  • Other ranges and passes: Cadair Idris and other distinct mountain ranges and passes within the park that offer separate hiking circuits and geological features.

How to Get to Snowdonia#

Snowdonia National Park covers much of north‑west Wales; principal gateway towns include Bangor, Caernarfon and Llanberis. Rail services run to Bangor and Llandudno Junction on the North Wales line; from those towns you can drive or take local buses via the A5 and A4086 to reach Llanberis and other trailheads. Mount Snowdon (Yr Wyddfa) is commonly accessed from Llanberis (A4086) and the Snowdon Mountain Railway operates from Llanberis station to the summit area in season.

Tips for Visiting Snowdonia#

  • If you plan to summit Snowdon, start very early (pre-dawn in summer) or late in the afternoon to avoid the busiest hours and to catch better weather windows; mountain conditions change quickly so allow extra time.
  • Choose your route based on transport and crowding: Llanberis Path is busiest and served by the Snowdon Mountain Railway (useful to avoid a full hike), while routes from Pen‑y‑Pass (Pyg/Miner's) are steeper but start busier-use park-and-ride or public buses to avoid full car parks.
  • Consider quieter alternatives within the national park (e.g., lesser-known ridges or valleys) if you want solitude-many visitors concentrate on Snowdon itself and miss the park's other high-quality walks and viewpoints.

Best Time to Visit Snowdonia#

Go to Snowdonia from late spring through early autumn for the most reliable conditions and best access to hiking routes.

Late spring-summer (best hiking)
May-September · ~8-18°C
Warmer, longer days are best for hiking, climbing and access to higher routes, though weather can change quickly.
Autumn
October-November · ~5-12°C
Cooler, wetter conditions with dramatic colours and fewer visitors, but increasingly changeable weather.
Winter
December-February · ~-5-5°C
Cold, often snowy and icy conditions limit access to many trails and increase hazards; suitable only for experienced winter mountaineering.

Weather & Climate near Snowdonia#

Climate

Snowdonia's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in July) and cold winters (coldest in February). Temperatures range from -1°C to 15°C. Heavy rainfall (2336 mm/year), wettest in December.

Air Quality: AQI 25 Good
Best Time to Visit
JulyJuneMay
Temperature & Rainfall
Temperature Range
26°
Warmest Month
-4°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -1° - 4° -6° 257 mm overcast 87% 12.0 m/s 0.0 low 7.9h
February Poor -1° - 4° -6° 186 mm overcast 87% 11.4 m/s 0.1 low 9.6h
March Poor 0° - 5° -4° 213 mm overcast 86% 10.0 m/s 0.4 low 11.7h
April Poor 1° - 7° -1° 149 mm overcast 84% 8.0 m/s 0.8 moderate 13.8h
May Poor 3° - 11° 3° 134 mm overcast 83% 7.8 m/s 1.2 high 15.7h
June Poor 6° - 14° 7° 136 mm overcast 84% 7.1 m/s 1.4 high 16.7h
July Acceptable 8° - 15° 12° 139 mm overcast 85% 6.8 m/s 1.3 high 16.2h
August Poor 8° - 15° 12° 164 mm overcast 85% 6.7 m/s 1.0 high 14.6h
September Poor 6° - 12° 6° 193 mm overcast 85% 7.5 m/s 0.6 moderate 12.5h
October Poor 4° - 9° 2° 239 mm overcast 85% 9.7 m/s 0.3 low 10.4h
November Poor 1° - 6° -3° 262 mm overcast 86% 10.6 m/s 0.1 low 8.4h
December Poor 0° - 4° -5° 264 mm overcast 87% 10.9 m/s 0.0 low 7.3h

Nearby Attractions to Snowdonia#