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Snowdonia National Park

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Snowdonia National Park Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Snowdonia National Park year round climate

  • Spring (March–May): Average 41–52°F, cool climate with less rainfall, suitable for hiking and trekking. Common activities: Hiking, trekking, enjoying mountain views. Recommended clothing: Warm jacket, waterproof jacket, comfortable hiking boots.
  • Summer (June–August): Average 51–56°F, mild climate with less rainfall and more sunny days. Common activities: Camping, rambling, boating, rock climbing. Recommended clothing: Lightweight and breathable clothing, waterproof jacket, sunscreen.
  • Autumn (September–November): Average 49–52°F, cool climate with less rainfall, crisp autumn weather. Common activities: Viewing autumn leaves, hiking, photography. Recommended clothing: Warm jacket, comfortable walking shoes.
  • Winter (December–February): Average 38–42°F, cold and humid climate, with potential snowfall. Common activities: Skiing, enjoying snow scenes. Recommended clothing: Thick warm clothing, waterproof jacket, warm hat, gloves and scarf.

Snowdonia National Park climatological average

Annual average temperature: approx. 47.5°F / Annual rainfall: approx. 72 mm / Summer humidity: 60%–70% / Rainiest month: February

Snowdonia National Park monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
38.1°F
8.3
February
41.7°F
9.1
March
41.5°F
7.6
April
44.6°F
7.5
May
52.5°F
4.4
June
52°F
3.2
July
55.2°F
5.1
August
56.3°F
6.6
September
52.7°F
4.2
October
49.1°F
4.7
November
43.7°F
4.7
December
42.8°F
7.2

Snowdonia National Park weather for the next seven days

3/19
Thursday
Sunny
58.5°F/42.6°F
3/20
Friday
Sunny
55.9°F/40.2°F
3/21
Saturday
Sunny
56.8°F/40.7°F
3/22
Sunday
Sunny
53.9°F/35.8°F
3/23
Monday
Overcast
46.7°F/32.5°F
3/24
Tuesday
Patchy rain nearby
49°F/38.3°F
3/25
Wednesday
Patchy rain nearby
40.6°F/34.6°F

Snowdonia National Park Frequently Asked Questions and Useful Information for Travel

What is the best month to visit Snowdonia National Park?

The best time to visit Snowdonia National Park is between June and August. During these months, temperatures are generally warm and rainfall is typically lower, offering the most pleasant conditions for exploring the park.

How many days do you need for Snowdonia National Park?

For a comprehensive exploration of Snowdonia National Park, 3 to 5 days is the ideal amount of time, especially if you plan on doing a significant amount of hiking. However, if you wish to simply drive through the entire park, a day trip is also possible.

Where is the nearest airport to Snowdonia National Park?

The nearest airport to Snowdonia National Park is Liverpool John Lennon Airport (LPL). However, for a more convenient journey, Transport for Wales operates a train service from Manchester Airport directly to Llandudno Junction, a gateway to the park. Tickets typically range from £20 to £50, with the journey taking approximately 2 hours and 21 minutes.

What are the best hiking trails in Snowdonia National Park?

Snowdonia National Park offers a variety of hiking trails for all skill levels. Popular routes include the Miners' Track and the Pyg Track for those aiming for Snowdon's summit. For stunning panoramic views without the extreme challenge, consider the Watkin Path or the ascent via Rhyd Ddu.

Are there any entry fees for Snowdonia National Park?

No, entry to Eryri (Snowdonia) National Park is free. You can explore the vast landscapes and natural beauty of the park without any admission charges.