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December weather forecast in St Austell

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

30 November, sun

	756 mmHg		85%
	8.39 m/s		+12

30 November, Sunday. day, 10°; night, 6°; rain

1 December, mon

	756 mmHg		83%
	8.1 m/s		+12

1 December, Monday. day, 9°; night, 6°; partly cloudy

2 December, tue

	757 mmHg		81%
	7.9 m/s		+12

2 December, Tuesday. day, 9°; night, 6°; rain

3 December, wed

	755 mmHg		82%
	8.39 m/s		+12

3 December, Wednesday. day, 9°; night, 6°; rain

4 December, thu

	755 mmHg		82%
	8.5 m/s		+12

4 December, Thursday. day, 9°; night, 6°; partly cloudy

5 December, fri

	756 mmHg		81%
	9.1 m/s		+12

5 December, Friday. day, 9°; night, 6°; partly cloudy

6 December, sat

	758 mmHg		84%
	8.5 m/s		+12

6 December, Saturday. day, 9°; night, 6°; partly cloudy

7 December, sun

	755 mmHg		82%
	9.1 m/s		+12

7 December, Sunday. day, 9°; night, 6°; partly cloudy

8 December, mon

	756 mmHg		80%
	9.5 m/s		+12

8 December, Monday. day, 9°; night, 6°; rain

9 December, tue

	759 mmHg		82%
	8.8 m/s		+12

9 December, Tuesday. day, 9°; night, 6°; clear

10 December, wed

	759 mmHg		83%
	8.3 m/s		+12

10 December, Wednesday. day, 9°; night, 6°; partly cloudy

11 December, thu

	758 mmHg		86%
	7.7 m/s		+11

11 December, Thursday. day, 9°; night, 6°; partly cloudy

12 December, fri

	757 mmHg		84%
	9.1 m/s		+11

12 December, Friday. day, 9°; night, 6°; overcast

13 December, sat

	757 mmHg		84%
	8.5 m/s		+11

13 December, Saturday. day, 9°; night, 6°; partly cloudy

14 December, sun

	757 mmHg		82%
	8.5 m/s		+11

14 December, Sunday. day, 9°; night, 6°; partly cloudy

15 December, mon

	759 mmHg		84%
	8 m/s		+11

15 December, Monday. day, 9°; night, 6°; partly cloudy

16 December, tue

	759 mmHg		83%
	8 m/s		+11

16 December, Tuesday. day, 9°; night, 6°; rain

17 December, wed

	759 mmHg		84%
	8.3 m/s		+11

17 December, Wednesday. day, 9°; night, 6°; rain

18 December, thu

	757 mmHg		87%
	8.8 m/s		+11

18 December, Thursday. day, 10°; night, 6°; rain

19 December, fri

	757 mmHg		86%
	8 m/s		+11

19 December, Friday. day, 9°; night, 5°; overcast

20 December, sat

	757 mmHg		86%
	7.8 m/s		+11

20 December, Saturday. day, 9°; night, 6°; rain

21 December, sun

	757 mmHg		87%
	8.6 m/s		+11

21 December, Sunday. day, 9°; night, 6°; overcast

22 December, mon

	757 mmHg		87%
	8.7 m/s		+11

22 December, Monday. day, 9°; night, 7°; rain

23 December, tue

	756 mmHg		86%
	9 m/s		+11

23 December, Tuesday. day, 10°; night, 7°; rain

24 December, wed

	756 mmHg		84%
	8.7 m/s		+11

24 December, Wednesday. day, 9°; night, 6°; rain

25 December, thu

	756 mmHg		85%
	8.5 m/s		+11

25 December, Thursday. day, 9°; night, 6°; rain

26 December, fri

	756 mmHg		83%
	9 m/s		+11

26 December, Friday. day, 9°; night, 6°; rain

27 December, sat

	754 mmHg		83%
	9.3 m/s		+11

27 December, Saturday. day, 8°; night, 5°; rain

28 December, sun

	755 mmHg		82%
	8.8 m/s		+11

28 December, Sunday. day, 8°; night, 5°; rain

29 December, mon

	755 mmHg		85%
	9 m/s		+11

29 December, Monday. day, 9°; night, 5°; rain

30 December, tue

	755 mmHg		87%
	9 m/s		+11

30 December, Tuesday. day, 10°; night, 6°; rain

31 December, wed

	755 mmHg		86%
	9.2 m/s		+11

31 December, Wednesday. day, 9°; night, 6°; rain

1 January, thu

	755 mmHg		83%
	9.7 m/s		+11

1 January, Thursday. day, 9°; night, 6°; rain

2 January, fri

	756 mmHg		82%
	9.2 m/s		+10

2 January, Friday. day, 8°; night, 5°; partly cloudy

3 January, sat

	756 mmHg		84%
	9.39 m/s		+10

3 January, Saturday. day, 8°; night, 5°; rain

Average data for 10 years

St Austell December

1

sunny day

17

days with precipitation

13

cloudy days

1 sunny day; 17 days with precipitation; 13 cloudy days;

84

%

air humidity

6.3

m/s

WindS

102

mm of precipitation

(11% of annual average)

+11

°C

Water temperature

air humidity 84%; 102 millimeters of precipitation (11% of annual average); Wind southerly 6.3 Meters per second; Water temperature +11°

Weather graphs for December

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

S

S

S

SW

SW

S

S

SW

SW

SW

S

S

S

S

S

SW

S

S

S

S

SW

SW

SW

S

SW

SW

S

SW

S

SW

S

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Dublin
Liverpool
Brest
Trowbridge
Oxford
Looe
Carnac
Plymouth
Mont St Michel

Cities with similar weather in December

Gagra
Suhum
Baku
Pitsunda
Burgas
New Athos
The Sunny Beach
Podgorica
Vancouver

The weather forecast for December 2025 is based on historical data from the past 10 years.

In December, the weather in St Austell is typically cold. Average daily high temperature in December is about 9 degrees above zero. On average, St Austell has 17 rainy, 10 partly cloudy, 3 cloudy, and 1 sunny day in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit St Austell.

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