Weather in Cornwall

Check out the weather forecast for Cornwall

The weather in Cornwall: Four-day forecast

Cornwall has a temperate climate and the mildest and sunniest weather in the United Kingdom as a result of its southerly latitude and the influence of the Gulf Stream. The average annual temperature in Cornwall ranges from 11.6°C (53°F) to 9.8°C (52°F). Visitors often discover that the weather in Cornwall is changeable and can vary at different places nearby. Check out local weather forecasts on our destination pages.

Get a seven day forecast on the North Atlantic Jet Stream here.

Cornwall is one of the sunniest areas in the UK, with over 1541 hours of sunshine per year, with the highest average of 7.6 hours of sunshine per day in July according to the Met Office. However in the last few years the effects of climate change have impacted the weather, especially during the summer season. Due to the Gulf Stream, the weather in Cornwall is also subject to sea mists and rain, sometimes in the form of 'mizzle' and conditions can change quickly.  As the UK's only area of sub-tropical climate, especially at the extreme south-west of Cornwall and the Isles of Scilly, palm trees are a common sight and along the South coast there are several outstanding botanical gardens.