Temperature in Cornwall in December
Cornwall is a region in the United Kingdom. December in has maximum daytime temperatures ranging from low in Gunnislake with 10°C to moderate temperatures in St Just with 12°C. Nighttime temperatures generally drop to 9°C in St Just and 4°C in Gunnislake. December is a winter month.
What is the temperature of the different cities in Cornwall in December?
Explore the map below to discover average December temperatures at the top destinations in Cornwall. For a deeper dive, simply click on any destination dot.
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Check the weather conditions for any month in Cornwall.
For a detailed overview of the weather over the year and the best time to visit the United Kingdom, check out our Cornwall's climate page.
Interested in more climate information?
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.