Anglesey is one of several regions in the United Kingdom, with temperatures that range from 9°C (48°F) in February to 19°C (66°F) during the peak of August. We've based our full climate overview on data from Holyhead, 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 Anglesey, there are no specific months with consistently comfortable weather, but average temperatures vary throughout the year.
The cooler season is during the months of January and February.
When it comes to rainfall, Anglesey sees significant variations throughout the year. November tends to be the wettest, receiving 127 mm (5 in) of rain, while May is much drier with just 65 mm (2.6 in).