Weather in Cornwall, United Kingdom in December

So you're interested in going to Cornwall, United Kingdom in December

December is a very cold and rainy time for sunbathing in Cornwall, and not recommended. December is too cold for swimming in Cornwall for any length of time, unless you have a wetsuit. Consider visiting Cornwall in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for December.

Temperature in Cornwall in December

The average maximum temperature in Cornwall in December is . The average maximum temperature is 11° in the previous month and in the next month.

The average temperature in Cornwall in December is . The average temperature ranges is in the previous month and in the next month.

The average minimum temperature in Cornwall in December is . The minimum temperature is in the previous month and in the next month.

Sunshine in Cornwall in December

The average day light hours per day in Cornwall in December are 7.8 and there are 1.5 hours of sunshine per day on average during December making it not a particularly sunny month.

The ultraviolet index in Cornwall in December is typically 0.5 during December. An ultraviolet index reading of 0 to 2 indicates low danger from the sun's UV rays for the average person. Most people will be able to spend several hours in the sun with out a problem, however unprotected skin risks burning in less than 1 hour. Wear sunglasses on bright days. Only those that burn easily will need to apply sunscreen. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Cornwall in December

The average sea water temperature in Cornwall in December is 11.5° which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Rainfall in Cornwall in December

The average total rainfall in Cornwall in December is 1.9cm and on average there are 15.8 rainy days in December making it a wet time to visit the beach.

Humidity in Cornwall in December

The maximum dew point (an indicator of humidity) in Cornwall in December is which is a bit dry for some. The dew point is in the previous month and in the next month.

The average maximum relative humidity in Cornwall in December is typically 90.3%. The maximum relative humidity is 90.4% in the previous month and 90.3% in the next month.

The average relative humidity in Cornwall in December is typically 81%. The average relative humidity is 80.8% in the previous month and 81.5% in the next month.

Wind Speed in Cornwall in December

The average maximum wind speed in Cornwall in December is typically 33kmh. The average maximum wind speed is 31kmh in the previous month and 33kmh in the next month.

The average wind speed in Cornwall in December is typically 21kmh. The average wind speed is 19kmh in the previous month and 21kmh in the next month.

The average wind direction in Cornwall in December is from the West.

Nearby Hotels on Booking.com

Monthly Averages

Suggested Beaches in December

Book Accomodation Deals