Wiltshire Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Wiltshire, the United Kingdom in December.

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Swindon Bradford on Avon Box Devizes

Planning a journey to Wiltshire, the United Kingdom this December and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Wiltshire in December

Wiltshire, the United Kingdom is a region in the United Kingdom. December in Wiltshire generally has cold temperatures, with moderate precipitation. During December, winter is in full swing.

Temperatures

You can expect cold maximum daytime temperatures of around 9°C (48°F) and nighttime temperatures around 3°C (37°F) in Swindon.

To learn more about the conditions in specific areas of Wiltshire, the United Kingdom, check out the map below.

Precipitation

In December, precipitation varies across different areas. From moderate rainfall in Highworth with an average of 69 mm (2.7 in) to moderate rainfall in Fordingbridge with 84 mm (3.3 in).

Average sunshine

Sunshine hours are generally lower in most areas during December. Swindon experiences about 54 hours of sunlight. If you're looking for brighter destinations, our weather planner can suggest better options.

Explore Wiltshire by month

Pick a month to see the average temperature, rainfall and sunshine in Wiltshire — and find the best time to visit. (based on Swindon)

January8°C (46°F) February9°C (48°F) March11°C (52°F) April14°C (57°F) May17°C (63°F) June20°C (68°F) This monthJuly22°C (72°F) August22°C (72°F) September19°C (66°F) October15°C (59°F) November11°C (52°F) December9°C (48°F)
Best Time to Visit Wiltshire →

Best Places to Visit in Wiltshire in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Wiltshire.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Wiltshire

What is the weather like in December for some of the most popular destinations in Wiltshire, the United Kingdom?

Temperature range in Wiltshire (December)

Precipitation variation in Wiltshire (December)

Swindon

In December Swindon generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 3°C (37°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
11°C (52°F)
9°C (48°F)
8°C (46°F)
Min temperature
5°C (41°F)
3°C (37°F)
2°C (36°F)
Monthly sun hours
70 hours
54 hours
60 hours
Monthly rainfall
73 mm (2.9 in)
71 mm (2.8 in)
67 mm (2.6 in)
Monthly rainy days
19 days
19 days
17 days
Weather conditions
unpleasant
poor
poor
Climate in Swindon →

Bradford on Avon

In December Bradford on Avon generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 3°C (37°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
12°C (54°F)
9°C (48°F)
9°C (48°F)
Min temperature
5°C (41°F)
3°C (37°F)
3°C (37°F)
Monthly sun hours
71 hours
53 hours
59 hours
Monthly rainfall
80 mm (3.1 in)
80 mm (3.1 in)
76 mm (3 in)
Monthly rainy days
16 days
17 days
18 days
Weather conditions
unpleasant
poor
poor
Climate in Bradford on Avon →

Box

In December Box generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 3°C (37°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
12°C (54°F)
9°C (48°F)
9°C (48°F)
Min temperature
5°C (41°F)
3°C (37°F)
3°C (37°F)
Monthly sun hours
71 hours
53 hours
59 hours
Monthly rainfall
79 mm (3.1 in)
79 mm (3.1 in)
75 mm (3 in)
Monthly rainy days
16 days
17 days
18 days
Weather conditions
unpleasant
poor
poor
Climate in Box →

Devizes

In December Devizes generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 3°C (37°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
12°C (54°F)
9°C (48°F)
9°C (48°F)
Min temperature
5°C (41°F)
3°C (37°F)
3°C (37°F)
Monthly sun hours
80 hours
55 hours
59 hours
Monthly rainfall
78 mm (3.1 in)
76 mm (3 in)
73 mm (2.9 in)
Monthly rainy days
16 days
17 days
17 days
Weather conditions
unpleasant
poor
poor
Climate in Devizes →

Warminster

In December Warminster generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 3°C (37°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
12°C (54°F)
9°C (48°F)
9°C (48°F)
Min temperature
5°C (41°F)
3°C (37°F)
3°C (37°F)
Monthly sun hours
80 hours
55 hours
59 hours
Monthly rainfall
81 mm (3.2 in)
80 mm (3.1 in)
76 mm (3 in)
Monthly rainy days
16 days
17 days
18 days
Weather conditions
unpleasant
poor
poor
Climate in Warminster →

Is your destination not in the list? Have a look at all destinations in Wiltshire, in the United Kingdom.

In our records: the United Kingdom December extremes

Notable December records observed across cities in the United Kingdom in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the coldest December daytime high in the United Kingdom was -10°C (14°F) in Glasgow on December 29, 1995.
  • From our sources, the wettest December day in the United Kingdom brought 301 mm (12 in) in Belfast on December 4, 1982.

Popular cities in December

Day & night temperatures, rainfall and average weather in Wiltshire in December.

City Weather Day temp Night temp Rainfall
Swindon 9°C (48°F) 3°C (37°F) 71 mm (2.8 in)
Bradford on Avon 9°C (48°F) 3°C (37°F) 80 mm (3.1 in)
Box 9°C (48°F) 3°C (37°F) 79 mm (3.1 in)
Devizes 9°C (48°F) 3°C (37°F) 76 mm (3 in)
Warminster 9°C (48°F) 3°C (37°F) 80 mm (3.1 in)
Corsham 9°C (48°F) 3°C (37°F) 78 mm (3.1 in)

Wiltshire weather in December: frequently asked questions

What is the weather like in Wiltshire, the United Kingdom in December?

December in Wiltshire, the United Kingdom brings poor weather. In Swindon, daytime temperatures are typically around 9°C (48°F) and nighttime lows hover near 3°C (37°F).

What is the average temperature in Wiltshire, the United Kingdom in December?

In Swindon, the average daytime high in December is 9°C (48°F), while nighttime temperatures drop to around 3°C (37°F).

Does Wiltshire, the United Kingdom get a lot of rain in December?

Rain is generally moderate to light in Wiltshire, the United Kingdom during December, with Swindon averaging close to 71 mm (2.8 in).

Is December a Good Time to Visit Wiltshire, the United Kingdom?

In our opinion, December may not be the ideal time to visit Wiltshire, the United Kingdom due to the typically poor weather in Swindon.

Generally speaking, June, July and August provide perfect weather in Swindon. On the other hand, the weather in January, February and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Wiltshire.

Weather and climate has detailed information for every country in the world. Are you going to the United Kingdom? Get detailed historical weather averages for many cities in the United Kingdom.

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.

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