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December weather forecast in Saint John's

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

	753 mmHg		78%
	9.1 m/s		+6

30 November, Sunday. day, 3°; night, 0°; rain

1 December, mon

	755 mmHg		79%
	9.6 m/s		+5

1 December, Monday. day, 4°; night, 0°; clear

2 December, tue

	752 mmHg		84%
	9.89 m/s		+5

2 December, Tuesday. day, 4°; night, 1°; rain

3 December, wed

	752 mmHg		82%
	10 m/s		+5

3 December, Wednesday. day, 4°; night, 1°; rain

4 December, thu

	750 mmHg		82%
	8.89 m/s		+5

4 December, Thursday. day, 2°; night, 0°; rain

5 December, fri

	752 mmHg		80%
	9.1 m/s		+5

5 December, Friday. day, 2°; night, 0°; partly cloudy

6 December, sat

	754 mmHg		80%
	8.89 m/s		+4

6 December, Saturday. day, 2°; night, 0°; rain

7 December, sun

	751 mmHg		82%
	10.1 m/s		+5

7 December, Sunday. day, 3°; night, 0°; rain

8 December, mon

	750 mmHg		79%
	10 m/s		+4

8 December, Monday. day, 2°; night, 0°; partly cloudy

9 December, tue

	751 mmHg		77%
	10.5 m/s		+4

9 December, Tuesday. day, 1°; night, 0°; partly cloudy

10 December, wed

	754 mmHg		77%
	10.4 m/s		+4

10 December, Wednesday. day, 2°; night, -1°; partly cloudy

11 December, thu

	753 mmHg		80%
	10.1 m/s		+4

11 December, Thursday. day, 2°; night, 0°; overcast

12 December, fri

	754 mmHg		78%
	9.89 m/s		+4

12 December, Friday. day, 2°; night, 0°; overcast

13 December, sat

	754 mmHg		78%
	9.39 m/s		+4

13 December, Saturday. day, 1°; night, 0°; clear

14 December, sun

	754 mmHg		77%
	8.8 m/s		+3

14 December, Sunday. day, 1°; night, -1°; partly cloudy

15 December, mon

	752 mmHg		80%
	10.2 m/s		+4

15 December, Monday. day, 1°; night, 0°; rain

16 December, tue

	750 mmHg		79%
	11 m/s		+3

16 December, Tuesday. day, 1°; night, 0°; overcast

17 December, wed

	752 mmHg		79%
	10.7 m/s		+3

17 December, Wednesday. day, 1°; night, -1°; rain

18 December, thu

	750 mmHg		83%
	9.6 m/s		+3

18 December, Thursday. day, 2°; night, 0°; rain

19 December, fri

	747 mmHg		81%
	10.7 m/s		+2

19 December, Friday. day, 2°; night, 0°; rain

20 December, sat

	750 mmHg		79%
	9.8 m/s		+3

20 December, Saturday. day, 1°; night, -1°; partly cloudy

21 December, sun

	752 mmHg		79%
	9.89 m/s		+2

21 December, Sunday. day, 1°; night, -1°; rain

22 December, mon

	751 mmHg		80%
	10.2 m/s		+3

22 December, Monday. day, 1°; night, 0°; overcast

23 December, tue

	752 mmHg		79%
	9.2 m/s		+2

23 December, Tuesday. day, 0°; night, -1°; partly cloudy

24 December, wed

	753 mmHg		79%
	9.39 m/s		+3

24 December, Wednesday. day, 0°; night, -2°; overcast

25 December, thu

	751 mmHg		81%
	9.6 m/s		+3

25 December, Thursday. day, 1°; night, -1°; rain

26 December, fri

	751 mmHg		79%
	9.8 m/s		+2

26 December, Friday. day, 0°; night, -1°; rain

27 December, sat

	749 mmHg		79%
	9.8 m/s		+2

27 December, Saturday. day, 0°; night, -1°; overcast

28 December, sun

	747 mmHg		79%
	10.1 m/s		+2

28 December, Sunday. day, 0°; night, -2°; rain

29 December, mon

	748 mmHg		80%
	9.3 m/s		+2

29 December, Monday. day, 0°; night, -2°; snow

30 December, tue

	748 mmHg		81%
	9.39 m/s		+2

30 December, Tuesday. day, 0°; night, -2°; snow

31 December, wed

	748 mmHg		80%
	9.5 m/s		+2

31 December, Wednesday. day, 0°; night, -1°; snow

1 January, thu

	748 mmHg		78%
	10 m/s		+2

1 January, Thursday. day, -1°; night, -3°; partly cloudy

2 January, fri

	747 mmHg		78%
	9.6 m/s		+1

2 January, Friday. day, 0°; night, -3°; partly cloudy

3 January, sat

	748 mmHg		78%
	9.89 m/s		+1

3 January, Saturday. day, 0°; night, -3°; partly cloudy

Average data for 10 years

Saint John's December

2

sunny days

16

days with precipitation

17

cloudy days

2 sunny days; 16 days with precipitation; 17 cloudy days;

80

%

air humidity

7

m/s

WindSW

132

mm of precipitation

(11% of annual average)

+3

°C

Water temperature

air humidity 80%; 132 millimeters of precipitation (11% of annual average); Wind south-westerly 7 Meters per second; Water temperature +3°

Weather graphs for December

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

S

S

S

S

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

W

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

Halifax
Sydney
New Glasgow
Deer Lake
Blanc-Sablon
St. Anthony
Happy Valley-Goose Bay
Charlottetown
Gander

Cities with similar weather in December

Helsinki
Tallinn
Stockholm
Cholpon-Ata
Bellingshausen Station
Reykyavik
Oslo
Toronto
Chicago

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

In December, the weather in Saint John's is typically cold. Average daily high temperature in December is about 1 degree above zero. On average, Saint John's has 10 cloudy, 10 partly cloudy, 6 rainy, 3 snowy, and 2 sunny days in December. The rains are usually heavy. December as well as March, April, May, and June is considered the most uncomfortable time to visit Saint John's.

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