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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 5.3–11.4°C, 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 11.1–13.5°C, 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 9.5–11.5°C, 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 3.4–6.0°C, 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. 8.6°C / Annual rainfall: approx. 72 mm / Summer humidity: 60%–70% / Rainiest month: February

Snowdonia National Park monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
3.4°C
8.3
February
5.4°C
9.1
March
5.3°C
7.6
April
7°C
7.5
May
11.4°C
4.4
June
11.1°C
3.2
July
12.9°C
5.1
August
13.5°C
6.6
September
11.5°C
4.2
October
9.5°C
4.7
November
6.5°C
4.7
December
6°C
7.2

Snowdonia National Park weather for the next seven days

12/18
Thursday
Moderate rain
7.2°C/4.5°C
12/19
Friday
Patchy rain nearby
6.6°C/5.5°C
12/20
Saturday
Patchy rain nearby
7.1°C/4.4°C
12/21
Sunday
Patchy rain nearby
7°C/4.6°C
12/22
Monday
Partly Cloudy
7.1°C/4.5°C
12/23
Tuesday
Patchy rain nearby
5.8°C/4.4°C
12/24
Wednesday
Patchy rain nearby
4.3°C/2.7°C

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.