Things to do in Snowdonia National Park in August

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Overview

August is a good time to visit Snowdonia National Park. The weather is usually mildly cool and breezy, with temperatures ranging from 55—67°F (13—19°C). There are plenty of events to check out and activities to try in Snowdonia National Park during this time. Some of our top recommendations: go birdwatching at the RSPB Conwy Nature Reserve, explore the ancient ruins of Dolwyddelan Castle, go mountain biking on the challenging trails of Coed y Brenin Forest Park, and more!

Snowdonia National Park has plenty to offer for visitors of all ages and interests. In this article, we tell you the top things to see and do for your August trip to Snowdonia National Park. Get inspired by the events, activities, attractions, and experiences unique to August. We’ll let you know where to explore events based on your interests, whether that’s food, culture, art, music, sport or others.

We’ll let you know everything you need to prepare for the weather in Snowdonia National Park in August. Learn about what to wear and pack for your trip, the average temperatures throughout August, temperature changes from morning to evening and much more.

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Don't take our word for it
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Best events and things to do in Snowdonia National Park in August

Top experiences in August
Go birdwatching at the RSPB Conwy Nature Reserve
August is a fantastic time to spot a wide variety of bird species as they make the most of the park's diverse habitats. The warm weather and longer days provide ample opportunities to observe birds in their natural environment, from wading birds in the estuary to woodland species in the reserve's wooded areas. Whether you're a dedicated birder or just enjoy the tranquility of nature, a visit to RSPB Conwy Nature Reserve in August is a rewarding and peaceful experience.
Explore the ancient ruins of Dolwyddelan Castle
August is a great time to visit this historic site, as the longer days allow for more time to wander the grounds and take in the stunning views of the surrounding countryside. The castle's rich history and picturesque setting make it a must-see attraction in Snowdonia National Park. Whether you're a history buff or just appreciate beautiful architecture, a visit to Dolwyddelan Castle in August is sure to be a memorable experience.
Go mountain biking on the challenging trails of Coed y Brenin Forest Park
August is a great time to explore the exhilarating mountain biking routes that wind through this beautiful forest. The dry weather and longer days make for excellent riding conditions, allowing you to fully immerse yourself in the stunning natural surroundings. Whether you're a seasoned rider or just looking for an adrenaline-pumping adventure, Coed y Brenin Forest Park offers an unforgettable mountain biking experience in August.
Go rock climbing in the Llanberis Pass
August offers ideal conditions for climbers of all levels to tackle the challenging rock faces in this iconic location. The longer days and warmer weather provide ample time and comfortable temperatures for a thrilling day of climbing. The dramatic scenery and rugged terrain make the Llanberis Pass a world-class climbing destination, and August is the perfect time to test your skills against its impressive routes.
Hike to the summit of Mount Snowdon at sunrise
August is the perfect time to experience the breathtaking views from the highest peak in Wales. The early morning light creates a magical atmosphere as you make your way to the top. The clear skies in August also provide excellent visibility, allowing you to see for miles in every direction. Watching the sunrise from Mount Snowdon is a truly unforgettable experience that will stay with you for a lifetime.
Go wild swimming in the crystal-clear lakes and rivers of Snowdonia National Park
August is the ideal time to take a refreshing dip in the natural pools and waterfalls that dot the landscape. The warm weather makes the water more inviting, and the stunning surroundings make for a truly magical swimming experience. Whether you're an experienced wild swimmer or just looking to cool off, the unique beauty of Snowdonia's waterways in August is not to be missed.
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Holidays in Snowdonia National Park in August
August

There are no holidays in Snowdonia National Park in August

Other notable holidays
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Weather in Snowdonia National Park in August

Temperatures on an average day in Snowdonia National Park in August

The average temperature in Snowdonia National Park in August for a typical day ranges from a high of 67°F (19°C) to a low of 55°F (13°C). Some would describe it as mildly cool and breezy.

For comparison, the hottest month in Snowdonia National Park, July, has days with highs of 68°F (20°C) and lows of 55°F (13°C). The coldest month, February has days with highs of 45°F (7°C) and lows of 37°F (3°C). This graph shows how an average day looks like in Snowdonia National Park in August based on historical data.

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Historical temperature average in August
67°F
highs
55°F
lows

General weather summary

Mildly cool and breezy
Feels like
31%
Chance of rain
0.123 in
Amount
15.6 mph
Wind speed
81%
Humidity
14.6 hrs
Daylight length
5:57 AM
Sunrise
8:34 PM
Sunset
48%
Cloud cover
Sweater
What to wear
What to wear in August
With an average high of 67°F (19°C) and a low of 55°F (13°C), it generally feels mildly cool and breezy. There might also be a small chance of rain. With that in mind, most people would dress in something moderately warm like a sweater
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Best attractions for Snowdonia National Park in August

Besides the array of exciting events and activities Snowdonia National Park has to offer for travelers in August, we want to remind you of the classic attractions in Snowdonia National Park that are great to visit at this time of the year as well! You can’t miss these iconic landmarks, local favorites, and places rich with cultural heritage. We hope to give you insights and inspiration into the best things to see and do to make the most of your visit. Here is a list of our top attractions in Snowdonia National Park for August.
Zip World Llechwedd
1. Zip World Llechwedd
4.7
(5478)
Tours
Heritage preservation
Ancient rock quarry offering underground mine tours, workshops, history exhibits & on-site dining.
Clogwyn Station, Snowdon Mountain Railway
2. Clogwyn Station, Snowdon Mountain Railway
4.5
(563)
Railway services
Tours
Yr Wyddfa
3. Yr Wyddfa
4.8
(2093)
Mountain peak
Nature & Parks
Accessed by trail or rail, this soaring mountain features sweeping views, abundant flora & a cafe.
Rhaeadr Ewynnol / Swallow Falls Waterfall
4. Rhaeadr Ewynnol / Swallow Falls Waterfall
4.5
(4497)
Nature & Parks
Waterfalls
Churning waterfalls in a picturesque, wooded setting, reachable by a narrow, rocky footpath.
National Slate Museum
5. National Slate Museum
4.7
(3483)
National museum
Museums
Living museum in former Victorian quarry, with original artefacts and educational activities.
Harlech Castle
6. Harlech Castle
4.6
(6618)
Castle
Sights & Landmarks
Huge castle with 2 rings of walls, site of the longest siege in British history, plus family events.
Zip World Llechwedd
7. Zip World Llechwedd
4.7
(5495)
Tours
Heritage preservation
Ancient rock quarry offering underground mine tours, workshops, history exhibits & on-site dining.
Electric Mountain
8. Electric Mountain
3.8
(110)
Power station
Sights & Landmarks
Hydroelectic station visitor centre offering tunnel tours, kids' play area, climbing wall and cafe.
Zip World Betws-y-Coed
9. Zip World Betws-y-Coed
4.7
(3811)
Adventure sports
Nature & Parks
Snowdonia Adventure Activities
10. Snowdonia Adventure Activities
5.0
(823)
Outdoor activity organiser
Tours
Llanberis Lake Railway
11. Llanberis Lake Railway
4.5
(2712)
Tours
Scenic Railroads
Attraction featuring scenic rides on a narrow-gauge steam train pulled by a vintage engine.
Harlech Beach
12. Harlech Beach
4.8
(414)
Beach
Outdoor Activities
Long uninterrupted beach known for its grassy sand dunes & views of the Snowdonia Mountains.
Fairy Glen
13. Fairy Glen
4.4
(529)
Nature & Parks
Geologic Formations
Penygader
14. Penygader
4.9
(337)
Mountain peak
Nature & Parks
Rocky, 2,930-ft. top of Cadair Idris, popular with hikers for its dramatic lake & valley views.
The Mawddach Trail
15. The Mawddach Trail
4.7
(41)
Hiking area
Outdoor Activities
Dolbadarn Castle
16. Dolbadarn Castle
4.7
(983)
Castle
Sights & Landmarks
Dog-friendly site housing the ruins a 13th-century tower fort, with info boards & countryside views.

Looking for day-by-day itineraries in Snowdonia National Park?

Get inspired for your trip to Snowdonia National Park with our curated itineraries that are jam-packed with popular attractions everyday! Check them out here:

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