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Temperatures in December
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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.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in December in Cornwall?
    • St Just tops the warmest city list in our database with average maximum daytime temperatures around 12°C and a minimum nighttime temperature of around 9°C.

  • What is the coldest city in December in Cornwall?
    • When looking through our records, we find that Gunnislake stands out as the coolest city in Cornwall for the month of December. Daytime highs average 10°C and it cools down to about 4°C at night.

  • How much sun does Cornwall get in December?
    • The city Newquay usually sees around 65 hours of sunlight, indicating fewer sunny days.

    Interested in more climate information?

    We have much more information about the climate in Cornwall. Interested in the weather conditions in a specific month? Select the month below.

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