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Cornwall Weather in December, United Kingdom

Cornwall Averages December


  • What is Average Temperature?
    The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month


  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    High Temperature

  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    Low Temperature

  • What is Average Sea Temperature?
    Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

    Sea Temperature

  • What are Average Daily Sunshine Hours?
    Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

    Sunshine Hours

    2 hours
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall Days

    23 days
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years


    120 mm

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Cornwall Daily Averages December


December 2024
1 Avg 45º
2 Avg 46º
3 Avg 46º
4 Avg 45º
5 Avg 46º
6 Avg 46º
7 Avg 48º
8 Avg 46º
9 Avg 46º
10 Avg 46º
11 Avg 45º
12 Avg 46º
13 Avg 46º
14 Avg 48º
15 Avg 10º 50º
16 Avg 48º
17 Avg 48º
18 Avg 48º
19 Avg 48º
20 Avg 48º
21 Avg 10º 50º
22 Avg 10º 50º
23 Avg 10º 50º
24 Avg 46º
25 Avg 48º
26 Avg 48º
27 Avg 46º
28 Avg 45º
29 Avg 45º
30 Avg 48º
31 Avg 48º
Avg Historical Daily Average

December Weather Averages

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What's The Weather Like In Cornwall In December

Those looking for a December holiday will enjoy the relative seclusion that comes with being at Cornwall during this time of the year. With temperatures hovering above the freezing mark and strong winds, this isn't the most popular time for a holiday, but that means that those who do travel to the region will have plenty of time to relax by fires and take in the region's beauty without being too crowded.


The region can also be fairly wet during this time of the year, but with temperatures above the freezing mark, there is little chance of experiencing a white Christmas. Overall, the area records an average of 120mm of precipitation making this the wettest of the 12 months. This rain falls over a period of 23 days making much of the month very wet. Some of the rain can also be heavy at times thanks to passing thunderstorms associated with frontal systems.

Sunshine Hours

With the clouds, there is not much chance for sun and the area experiences only 3 hours of sunshine each day throughout the month. As a result, temperatures aren't able to climb and they can remain on the cold side throughout the morning and afternoon. 


Average afternoon temperatures will top out at just 9°C (48°F). These numbers aren't much warmer than first thing in the morning with average overnight lows of 6°C (43°F). Visitors will need to bring enough warm clothes in order to fight off the chill. Overall, the average daily temperature is just 8°C (46°F).

Sea Temperature

Water temperatures are also on a downward trend throughout the month. In fact, it will be several more months before visitors are able to enjoy all the water sports that the region has to offer again. During this time of the year, the sea surface temperature will only average 11°C (52°F).

Cornwall Hotels In December

Trewornan Manor

Located on the northern Cornwall coast, Trewornan Manor is the perfect spot for a December holiday. Situated just a few minutes away from cities such as Port Isaac and Padstow, the hotel is within easy distance of some of the region's major attractions. The hotel is located on a total of 25 acres and features gardens covering a total of 8 acres as well as immaculate bedrooms and a relaxed atmosphere. This bed and breakfast provides a number of food options as well as the chance to get away from everything and relax for a few days.

The Riverside

The award-winning hotel, The Riverside, is located in North Cornwall in Boscastle. Each room features a private bath, central heating, free Wi-Fi, and flat screen televisions. Additionally, the hotel offers a breakfast every morning as well as other dining options throughout the day. The hotel is located just minutes away from numerous attractions and offers a chance for rest and relaxation.

Carbis Bay Hotel and Estate

Carbis Bay Hotel and Estate features its own private Blue Star beach as well as numerous additional amenities such as a spa, numerous dining options, spectacular views, 47 rooms and more. The hotel also offers a wide array of room styles and prices to fit every budget. The perfect location for a beach wedding or just a quick holiday, the hotel staff are warm and welcoming and ready to serve you.

Bars And Restaurants

Taste Restaurant 

Taste Restaurant in St. Agnes offers plenty of dishes that you will want to sample. This new bistro restaurant is located in the heart of the city and offers a relaxing atmosphere to go with delectable dishes that are served at very reasonable prices. The chefs use only the freshest ingredients to provide surprising twists on food that is ever changing with the seasons and availability of fresh fish.

Daisy's Café

Those looking for a light, but delectable lunch or tea in Looe must check out Daisy's Café. With a wide variety of cakes, scones and more there is something for everyone to enjoy. The menu also includes coffees, milkshakes and, of course, tea. The service is outstanding and visitors will enjoy sitting for a while to shake off the December chill.

Harbour Tavern

Harbour Tavern sits overlooking the water in Mevagissey Harbour and offers excellent customer service as well as a well-stocked bar. This family-friendly pub is home to live music every Saturday night and celebrates many holidays with its own special traditions. Guests can also bring their dog to enjoy the local flavour of this traditional pub.

Things To Do In Cornwall In December

Christmas Markets

No place celebrates the Christmas season quite like Cornwall and there are numerous events to see throughout the month of December. While visitors might have to dodge a few raindrops, there are spectacular light displays in Padstow and several Christmas markets where shoppers can find just the right gift.

Lanhydrock Mansion

However, if the weather won't let you get outside then visiting a Victorian mansion is a great way to spend an afternoon. The Lanhydrock Mansion is the perfect place to explore and see some unique items located in various nooks and crannies. However, if there is a break in the weather, be sure to see the gardens as well.

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