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December weather forecast in Saint Helier

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

	761 mmHg		80%
	11.2 m/s		+12

30 November, Sunday. day, 10°; night, 9°; rain

1 December, mon

	760 mmHg		80%
	11.6 m/s		+12

1 December, Monday. day, 10°; night, 9°; rain

2 December, tue

	761 mmHg		77%
	11.8 m/s		+12

2 December, Tuesday. day, 10°; night, 9°; rain

3 December, wed

	760 mmHg		79%
	12.1 m/s		+12

3 December, Wednesday. day, 10°; night, 8°; rain

4 December, thu

	759 mmHg		78%
	11.5 m/s		+12

4 December, Thursday. day, 10°; night, 8°; rain

5 December, fri

	761 mmHg		77%
	11.5 m/s		+12

5 December, Friday. day, 10°; night, 9°; rain

6 December, sat

	763 mmHg		78%
	11.3 m/s		+12

6 December, Saturday. day, 10°; night, 9°; rain

7 December, sun

	761 mmHg		78%
	12 m/s		+12

7 December, Sunday. day, 10°; night, 8°; rain

8 December, mon

	761 mmHg		77%
	12.2 m/s		+12

8 December, Monday. day, 10°; night, 8°; rain

9 December, tue

	763 mmHg		78%
	11.6 m/s		+12

9 December, Tuesday. day, 10°; night, 8°; rain

10 December, wed

	763 mmHg		77%
	10.9 m/s		+12

10 December, Wednesday. day, 10°; night, 8°; partly cloudy

11 December, thu

	763 mmHg		80%
	10.5 m/s		+12

11 December, Thursday. day, 10°; night, 8°; partly cloudy

12 December, fri

	762 mmHg		81%
	11.4 m/s		+11

12 December, Friday. day, 10°; night, 8°; overcast

13 December, sat

	762 mmHg		80%
	11.2 m/s		+11

13 December, Saturday. day, 9°; night, 8°; rain

14 December, sun

	762 mmHg		79%
	11.3 m/s		+11

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

15 December, mon

	763 mmHg		78%
	11.1 m/s		+11

15 December, Monday. day, 9°; night, 8°; partly cloudy

16 December, tue

	764 mmHg		79%
	10.9 m/s		+11

16 December, Tuesday. day, 9°; night, 8°; partly cloudy

17 December, wed

	763 mmHg		79%
	11.1 m/s		+11

17 December, Wednesday. day, 10°; night, 8°; clear

18 December, thu

	763 mmHg		82%
	11.5 m/s		+11

18 December, Thursday. day, 10°; night, 8°; rain

19 December, fri

	762 mmHg		81%
	11 m/s		+11

19 December, Friday. day, 10°; night, 8°; rain

20 December, sat

	762 mmHg		79%
	10.7 m/s		+11

20 December, Saturday. day, 10°; night, 8°; rain

21 December, sun

	762 mmHg		82%
	11.4 m/s		+11

21 December, Sunday. day, 10°; night, 8°; rain

22 December, mon

	762 mmHg		81%
	11.5 m/s		+11

22 December, Monday. day, 10°; night, 9°; overcast

23 December, tue

	762 mmHg		84%
	11.8 m/s		+11

23 December, Tuesday. day, 10°; night, 9°; rain

24 December, wed

	761 mmHg		82%
	11.8 m/s		+11

24 December, Wednesday. day, 10°; night, 9°; rain

25 December, thu

	761 mmHg		81%
	11.3 m/s		+11

25 December, Thursday. day, 9°; night, 8°; rain

26 December, fri

	761 mmHg		78%
	12 m/s		+11

26 December, Friday. day, 9°; night, 8°; overcast

27 December, sat

	759 mmHg		79%
	12.4 m/s		+11

27 December, Saturday. day, 9°; night, 7°; overcast

28 December, sun

	760 mmHg		77%
	11.4 m/s		+11

28 December, Sunday. day, 9°; night, 7°; rain

29 December, mon

	761 mmHg		79%
	11.6 m/s		+11

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

30 December, tue

	761 mmHg		82%
	11.4 m/s		+11

30 December, Tuesday. day, 10°; night, 8°; partly cloudy

31 December, wed

	761 mmHg		83%
	11.6 m/s		+11

31 December, Wednesday. day, 9°; night, 8°; overcast

1 January, thu

	760 mmHg		81%
	12.1 m/s		+10

1 January, Thursday. day, 9°; night, 8°; rain

2 January, fri

	761 mmHg		78%
	12.4 m/s		+10

2 January, Friday. day, 9°; night, 7°; rain

3 January, sat

	762 mmHg		80%
	12.3 m/s		+10

3 January, Saturday. day, 9°; night, 7°; rain

Average data for 10 years

Saint Helier December

1

sunny day

19

days with precipitation

14

cloudy days

1 sunny day; 19 days with precipitation; 14 cloudy days;

80

%

air humidity

8.89

m/s

WindS

140

mm of precipitation

(14% of annual average)

+11

°C

Water temperature

air humidity 80%; 140 millimeters of precipitation (14% of annual average); Wind southerly 8.89 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

S

S

SW

S

S

S

S

S

S

SW

S

S

S

SW

SW

SW

SW

S

S

SW

SW

SW

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

London
Brest
Trowbridge
Oxford
Le Havre
Rouen
Bournemouth
Nantes
Carnac

Cities with similar weather in December

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

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

December in Saint Helier is the windiest and the cloudiest month of the year. In December, the weather in Saint Helier is typically warm. Average daily high temperature in December is about 10 degrees above zero. On average, Saint Helier has 19 rainy, 6 partly cloudy, 5 cloudy, and 1 sunny day in December. The rains are usually heavy. December as well as January, February, March, and October is considered the most uncomfortable time to visit Saint Helier.

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