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December weather forecast in Châteaulin

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		84%
	8.3 m/s		+11

30 November, Sunday. day, 10°; night, 8°; rain

1 December, mon

	756 mmHg		83%
	8.7 m/s		+11

1 December, Monday. day, 10°; night, 8°; partly cloudy

2 December, tue

	757 mmHg		80%
	8.89 m/s		+11

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

3 December, wed

	755 mmHg		83%
	9.39 m/s		+11

3 December, Wednesday. day, 10°; night, 7°; rain

4 December, thu

	755 mmHg		84%
	8.8 m/s		+11

4 December, Thursday. day, 10°; night, 7°; rain

5 December, fri

	757 mmHg		81%
	8.8 m/s		+11

5 December, Friday. day, 10°; night, 7°; clear

6 December, sat

	758 mmHg		81%
	8.7 m/s		+12

6 December, Saturday. day, 10°; night, 7°; partly cloudy

7 December, sun

	756 mmHg		82%
	9.39 m/s		+11

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

8 December, mon

	757 mmHg		81%
	8.89 m/s		+12

8 December, Monday. day, 9°; night, 7°; clear

9 December, tue

	759 mmHg		82%
	8.5 m/s		+12

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

10 December, wed

	759 mmHg		82%
	8 m/s		+11

10 December, Wednesday. day, 10°; night, 7°; clear

11 December, thu

	758 mmHg		85%
	8 m/s		+11

11 December, Thursday. day, 9°; night, 7°; rain

12 December, fri

	758 mmHg		85%
	9.2 m/s		+11

12 December, Friday. day, 10°; night, 7°; partly cloudy

13 December, sat

	757 mmHg		85%
	8.6 m/s		+11

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

14 December, sun

	757 mmHg		83%
	8.6 m/s		+11

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

15 December, mon

	759 mmHg		82%
	8.1 m/s		+11

15 December, Monday. day, 9°; night, 7°; partly cloudy

16 December, tue

	759 mmHg		83%
	8.3 m/s		+11

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

17 December, wed

	759 mmHg		83%
	8.5 m/s		+11

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

18 December, thu

	758 mmHg		85%
	9 m/s		+11

18 December, Thursday. day, 10°; night, 7°; rain

19 December, fri

	757 mmHg		85%
	9.2 m/s		+11

19 December, Friday. day, 10°; night, 7°; rain

20 December, sat

	758 mmHg		84%
	8 m/s		+11

20 December, Saturday. day, 10°; night, 7°; partly cloudy

21 December, sun

	758 mmHg		86%
	8.89 m/s		+11

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

22 December, mon

	758 mmHg		86%
	9.1 m/s		+11

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

23 December, tue

	758 mmHg		86%
	9.1 m/s		+11

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

24 December, wed

	757 mmHg		85%
	8.8 m/s		+11

24 December, Wednesday. day, 10°; night, 7°; overcast

25 December, thu

	757 mmHg		85%
	8.39 m/s		+11

25 December, Thursday. day, 9°; night, 7°; overcast

26 December, fri

	757 mmHg		82%
	9.5 m/s		+11

26 December, Friday. day, 9°; night, 7°; rain

27 December, sat

	755 mmHg		82%
	9.7 m/s		+10

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

28 December, sun

	755 mmHg		80%
	9.2 m/s		+11

28 December, Sunday. day, 9°; night, 6°; rain

29 December, mon

	756 mmHg		83%
	9.39 m/s		+11

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

30 December, tue

	756 mmHg		86%
	9.1 m/s		+11

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

31 December, wed

	756 mmHg		86%
	9.2 m/s		+11

31 December, Wednesday. day, 9°; night, 7°; rain

1 January, thu

	755 mmHg		83%
	9.89 m/s		+10

1 January, Thursday. day, 9°; night, 7°; rain

2 January, fri

	757 mmHg		83%
	9.89 m/s		+10

2 January, Friday. day, 9°; night, 6°; rain

3 January, sat

	757 mmHg		83%
	9.8 m/s		+10

3 January, Saturday. day, 9°; night, 6°; rain

Average data for 10 years

Châteaulin December

4

sunny days

18

days with precipitation

13

cloudy days

4 sunny days; 18 days with precipitation; 13 cloudy days;

83

%

air humidity

6.6

m/s

WindS

150

mm of precipitation

(13% of annual average)

+11

°C

Water temperature

air humidity 83%; 150 millimeters of precipitation (13% of annual average); Wind southerly 6.6 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

S

S

S

S

S

S

S

S

S

S

S

SW

S

SW

S

S

S

S

S

S

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

Brest
Trowbridge
Bournemouth
Nantes
Carnac
Plymouth
Looe
Mont St Michel
Penzance

Cities with similar weather in December

Gagra
Baku
Pitsunda
Rimini
Venice
New Athos
Tivat
Gudauta
Genoa

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

December in Châteaulin is the windiest month of the year. In December, the weather in Châteaulin is typically warm. Average daily high temperature in December is about 10 degrees above zero. On average, Châteaulin has 18 rainy, 7 partly cloudy, 4 sunny, and 2 cloudy days in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Châteaulin.

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