Gwent Weather in December

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

Are you planning a trip a to Gwent, the United Kingdom in December and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Gwent in December

Gwent, the United Kingdom is a region in the United Kingdom. December in Gwent generally has cold temperatures, with precipitation levels ranging from moderate to high. December is a winter month.

Temperatures

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

For a closer look at conditions across Gwent, the United Kingdom, refer to the map below.

Precipitation

In December, precipitation varies across different areas. From moderate rainfall in Monmouth with an average of 77 mm (3 in) to high rainfall in Rhymney with 116 mm (4.6 in).

Average sunshine

Sunshine hours are generally lower in most areas during December. Abergavenny experiences about 53 hours of sunlight. If you're looking for brighter destinations, our weather planner can suggest better options.

Explore Gwent by month

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

Best Places to Visit in Gwent in December

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

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 Gwent

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

Temperature range in Gwent (December)

Precipitation variation in Gwent (December)

Abergavenny

In December Abergavenny 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
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
71 hours
53 hours
59 hours
Monthly rainfall
89 mm (3.5 in)
91 mm (3.6 in)
84 mm (3.3 in)
Monthly rainy days
19 days
19 days
20 days
Weather conditions

Newport

In December Newport 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
Max temperature
12°C (54°F)
9°C (48°F)
9°C (48°F)
Min temperature
6°C (43°F)
3°C (37°F)
3°C (37°F)
Monthly sun hours
66 hours
49 hours
53 hours
Monthly rainfall
91 mm (3.6 in)
93 mm (3.7 in)
84 mm (3.3 in)
Monthly rainy days
18 days
19 days
20 days
Weather conditions

Monmouth

In December Monmouth 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
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
77 mm (3 in)
77 mm (3 in)
70 mm (2.8 in)
Monthly rainy days
18 days
18 days
19 days
Weather conditions

Usk

In December Usk 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
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
86 mm (3.4 in)
88 mm (3.5 in)
80 mm (3.1 in)
Monthly rainy days
18 days
18 days
19 days
Weather conditions

Chepstow

In December Chepstow 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
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)
73 mm (2.9 in)
Monthly rainy days
17 days
18 days
19 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Gwent, 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 Gwent in December.

City Weather Day temp Night temp Rainfall
Abergavenny 9°C (48°F) 3°C (37°F) 91 mm (3.6 in)
Newport 9°C (48°F) 3°C (37°F) 93 mm (3.7 in)
Monmouth 9°C (48°F) 3°C (37°F) 77 mm (3 in)
Usk 9°C (48°F) 3°C (37°F) 88 mm (3.5 in)
Chepstow 9°C (48°F) 3°C (37°F) 79 mm (3.1 in)
Skenfrith 9°C (48°F) 3°C (37°F) 79 mm (3.1 in)

Gwent weather in December: frequently asked questions

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

Expect poor weather across Gwent, the United Kingdom in December. The popular destination of Abergavenny averages 9°C (48°F) by day and 3°C (37°F) at night during this winter month.

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

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

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

Rain is generally moderate to light in Gwent, the United Kingdom during December, with Abergavenny averaging close to 91 mm (3.6 in).

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

In our view, December might not be the best time to travel to Gwent, the United Kingdom with often poor weather in Abergavenny.

Generally speaking, July and August provide perfect weather in Abergavenny. 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 Gwent.

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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Need travel inspiration? Check out our bucket list articles and be inspired.