Snowdonia National Park is one of several regions in the United Kingdom, with temperatures that range from 7°C (45°F) in January to 19°C (66°F) during the peak of July. We've based our full climate overview on data from Betws-y-coed, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
In Snowdonia National Park, the months of July and August bring pleasant weather, with average temperatures ranging between 19°C (66°F) and 19°C (66°F).
The colder months are generally January, February, March and December.
Precipitation in Snowdonia National Park shows some seasonal variation. You'll find the most rain in December (124 mm (4.9 in)), while May tends to be drier (88 mm (3.5 in)).
For those seeking sunshine, May usually has the brightest skies, making it an excellent time for exploring the region.