Whether you're visiting Gwynedd in the United Kingdom during the peak of July (20°C (68°F)) or the cooler months around January (8°C (46°F)), knowing what to pack starts with understanding the local climate. Our overview is based on data from Llandudno, 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.
Gwynedd offers pleasant conditions in July and August, with temperatures typically ranging from 19°C (66°F) to 20°C (68°F).
The colder period typically falls in the months of January, February and December.
When it comes to rainfall, Gwynedd experiences moderate variations in precipitation across the seasons. You can expect around 111 mm (4.4 in) of rain in December, dropping to 74 mm (2.9 in) in May.
For those seeking sunshine, May usually has the brightest skies, making it an excellent time for exploring the region.
