When planning a visit to Cornwall in the United Kingdom, it helps to know that temperatures typically range from 10°C (50°F) in February up to 20°C (68°F) during the peak of August. Our detailed climate overview is based on data from Newquay, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
In Cornwall, the months of July and August bring pleasant weather, with average temperatures ranging between 20°C (68°F) and 20°C (68°F).
When it comes to rainfall, Cornwall experiences moderate variations in precipitation across the seasons. You can expect around 104 mm (4.1 in) of rain in December, dropping to 67 mm (2.6 in) in May.
For those seeking sunshine, May usually has the brightest skies, making it an excellent time for exploring the region.
