Snowdonia National Park Weather Forecast

The Snowdonia National Park is 827 square miles of diverse landscape and home to around 26,000 people. It has around 100 lakes including the largest natural lake in Wales, 90 mountain peaks including the tallest mountain in Wales, standing at 1,085m, and 37 miles of pristine coastline and beaches. Whilst the National Park's land is either open or mountainous, there is a significant amount of agricultural activity within the park.

Area: 2176 sq km

Designated: 1951

Wales's first – and largest – National Park, Snowdonia is the nation's prime spot for thrill-seekers and mountaineers alike. Not only does Wales and England's largest peak (Snowdon) offer perilous climbs to the summit, the National Park is also home to Europe's longest and fastest zip wire, at a mile long and offering speeds of around 100mph.

Northern Snowdonia is the only place in Britain where the Snowdon Lily is found. It is also home to many rare animals and birds including Otters, Polecats, Feral Goats, Osprey, Merlin and Red Kite.

The Snowdonia National Park weather page provides a 5 day weather forecast for many places within the Park and the surrounding area, featuring 3 hourly updates on weather conditions for rainfall, temperature, wind speed and wind direction.

Weather Warnings and alerts for the Snowdonia National Park are also displayed during periods of severe weather from the 5 day weather forecast available for each location by clicking on a marker on the map. We warn the public and emergency responders of severe or hazardous weather which has the potential to cause danger to life or widespread disruption through our National Severe Weather Warning Service. Weather warnings are displayed for rain, snow, wind, fog and ice. For more information please view our weather warnings guide page.

Discover National Parks with Ordnance Survey maps and map bundles.

Weather hazards over 300m

Sorry, forecast is available in English only.

Blizzards Heavy snow Storm force winds
Gales Severe chill effect Persistent hill fog
Thunderstorms Heavy persistent rain Strong sunlight