West Sussex Weather in December

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

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Chichester Crawley Worthing Horley

Considering a trip to West Sussex, the United Kingdom this December and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in West Sussex in December

West Sussex, the United Kingdom is a region in the United Kingdom. December in West Sussex 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 10°C (50°F) and nighttime temperatures around 5°C (41°F) in Chichester.

For specific regional insights in West Sussex, the United Kingdom, refer to the map provided below.

Precipitation

In December, precipitation varies across different areas. From moderate rainfall in Alfold with an average of 71 mm (2.8 in) to high rainfall in Selsey with 108 mm (4.3 in).

Explore West Sussex by month

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

January9°C (48°F) February9°C (48°F) March11°C (52°F) April13°C (55°F) May16°C (61°F) June18°C (64°F) This monthJuly21°C (70°F) August21°C (70°F) September19°C (66°F) October16°C (61°F) November13°C (55°F) December10°C (50°F)
Best Time to Visit West Sussex →

Best Places to Visit in West Sussex in December

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

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 West Sussex

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

Temperature range in West Sussex (December)

Precipitation variation in West Sussex (December)

Chichester

In December Chichester generally has low temperatures with maximum daytime temperatures around 10°C (50°F), minimum nighttime temperatures around 5°C (41°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
13°C (55°F)
10°C (50°F)
9°C (48°F)
Min temperature
8°C (46°F)
5°C (41°F)
5°C (41°F)
Monthly rainfall
103 mm (4.1 in)
96 mm (3.8 in)
88 mm (3.5 in)
Monthly rainy days
15 days
16 days
17 days
Weather conditions
poor
poor
poor
Climate in Chichester →

Crawley

In December Crawley 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 rainfall
76 mm (3 in)
74 mm (2.9 in)
69 mm (2.7 in)
Monthly rainy days
17 days
17 days
18 days
Weather conditions
unpleasant
poor
poor
Climate in Crawley →

Worthing

In December Worthing generally has low temperatures with maximum daytime temperatures around 11°C (52°F), minimum nighttime temperatures around 6°C (43°F) and high monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
13°C (55°F)
11°C (52°F)
10°C (50°F)
Min temperature
8°C (46°F)
6°C (43°F)
5°C (41°F)
Monthly rainfall
111 mm (4.4 in)
101 mm (4 in)
90 mm (3.5 in)
Monthly rainy days
16 days
17 days
18 days
Weather conditions
poor
poor
poor
Climate in Worthing →

Horley

In December Horley 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 rainfall
74 mm (2.9 in)
72 mm (2.8 in)
67 mm (2.6 in)
Monthly rainy days
16 days
16 days
18 days
Weather conditions
unpleasant
poor
poor
Climate in Horley →

Bognor Regis

In December Bognor Regis generally has low temperatures with maximum daytime temperatures around 11°C (52°F), minimum nighttime temperatures around 6°C (43°F) and high monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
13°C (55°F)
11°C (52°F)
10°C (50°F)
Min temperature
8°C (46°F)
6°C (43°F)
5°C (41°F)
Monthly rainfall
113 mm (4.4 in)
104 mm (4.1 in)
94 mm (3.7 in)
Monthly rainy days
15 days
16 days
17 days
Weather conditions
poor
poor
poor
Climate in Bognor Regis →

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

City Weather Day temp Night temp Rainfall
Chichester 10°C (50°F) 5°C (41°F) 96 mm (3.8 in)
Crawley 9°C (48°F) 3°C (37°F) 74 mm (2.9 in)
Worthing 11°C (52°F) 6°C (43°F) 101 mm (4 in)
Horley 9°C (48°F) 3°C (37°F) 72 mm (2.8 in)
Bognor Regis 11°C (52°F) 6°C (43°F) 104 mm (4.1 in)
Littlehampton 10°C (50°F) 6°C (43°F) 99 mm (3.9 in)

West Sussex weather in December: frequently asked questions

What is the weather like in West Sussex, the United Kingdom in December?

In December, West Sussex, the United Kingdom generally has poor weather conditions. Chichester sees daytime temperatures near 10°C (50°F), with nights cooling to roughly 5°C (41°F).

What is the average temperature in West Sussex, the United Kingdom in December?

Average temperatures in West Sussex, the United Kingdom during December range from a nighttime low near 5°C (41°F) to a daytime high around 10°C (50°F) in Chichester.

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

Rain is generally moderate to light in West Sussex, the United Kingdom during December, with Chichester averaging close to 96 mm (3.8 in).

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

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

Generally speaking, the best visiting conditions can be found in July and August offering mostly perfect weather in Chichester. In contrast, January, February, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in West Sussex.

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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