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December weather forecast in Selfoss

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

	742 mmHg		82%
	5.5 m/s		+6

30 November, Sunday. day, 2°; night, -1°; rain

1 December, mon

	742 mmHg		82%
	5.7 m/s		+6

1 December, Monday. day, 2°; night, -1°; rain

2 December, tue

	740 mmHg		83%
	5.4 m/s		+6

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

3 December, wed

	741 mmHg		81%
	5.4 m/s		+6

3 December, Wednesday. day, 1°; night, -1°; clear

4 December, thu

	742 mmHg		83%
	4.4 m/s		+6

4 December, Thursday. day, 0°; night, -2°; overcast

5 December, fri

	743 mmHg		82%
	5.2 m/s		+6

5 December, Friday. day, 1°; night, -2°; rain

6 December, sat

	741 mmHg		80%
	5 m/s		+6

6 December, Saturday. day, 1°; night, -1°; rain

7 December, sun

	741 mmHg		81%
	5.4 m/s		+7

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

8 December, mon

	741 mmHg		81%
	5.5 m/s		+7

8 December, Monday. day, 2°; night, -1°; rain

9 December, tue

	741 mmHg		82%
	5.6 m/s		+7

9 December, Tuesday. day, 2°; night, 0°; rain

10 December, wed

	740 mmHg		83%
	6.1 m/s		+7

10 December, Wednesday. day, 2°; night, 0°; rain

11 December, thu

	742 mmHg		83%
	6.4 m/s		+7

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

12 December, fri

	742 mmHg		84%
	5.3 m/s		+6

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

13 December, sat

	742 mmHg		82%
	5.6 m/s		+6

13 December, Saturday. day, 2°; night, 0°; partly cloudy

14 December, sun

	742 mmHg		81%
	5.7 m/s		+6

14 December, Sunday. day, 2°; night, 0°; rain

15 December, mon

	743 mmHg		82%
	5.9 m/s		+6

15 December, Monday. day, 2°; night, -1°; overcast

16 December, tue

	744 mmHg		80%
	5.2 m/s		+6

16 December, Tuesday. day, 1°; night, -1°; rain

17 December, wed

	743 mmHg		83%
	5.3 m/s		+6

17 December, Wednesday. day, 2°; night, -1°; rain

18 December, thu

	743 mmHg		81%
	5.1 m/s		+5

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

19 December, fri

	744 mmHg		80%
	5.5 m/s		+5

19 December, Friday. day, 1°; night, -2°; rain

20 December, sat

	742 mmHg		83%
	5.6 m/s		+5

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

21 December, sun

	741 mmHg		81%
	5.5 m/s		+5

21 December, Sunday. day, 1°; night, -2°; overcast

22 December, mon

	741 mmHg		81%
	5.1 m/s		+6

22 December, Monday. day, 0°; night, -2°; clear

23 December, tue

	740 mmHg		78%
	5.2 m/s		+6

23 December, Tuesday. day, 0°; night, -2°; rain

24 December, wed

	739 mmHg		81%
	6.1 m/s		+6

24 December, Wednesday. day, 1°; night, -2°; rain

25 December, thu

	739 mmHg		80%
	5.8 m/s		+6

25 December, Thursday. day, 0°; night, -3°; overcast

26 December, fri

	740 mmHg		81%
	5 m/s		+6

26 December, Friday. day, 0°; night, -3°; snow

27 December, sat

	741 mmHg		82%
	5.7 m/s		+6

27 December, Saturday. day, 0°; night, -3°; clear

28 December, sun

	743 mmHg		80%
	5 m/s		+6

28 December, Sunday. day, 0°; night, -3°; clear

29 December, mon

	740 mmHg		81%
	5.7 m/s		+6

29 December, Monday. day, 0°; night, -3°; snow

30 December, tue

	739 mmHg		80%
	5.4 m/s		+6

30 December, Tuesday. day, 0°; night, -3°; snow

31 December, wed

	740 mmHg		81%
	5.5 m/s		+6

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

1 January, thu

	742 mmHg		82%
	5 m/s		+6

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

2 January, fri

	741 mmHg		84%
	5 m/s		+6

2 January, Friday. day, 2°; night, -1°; rain

3 January, sat

	741 mmHg		83%
	5.3 m/s		+6

3 January, Saturday. day, 1°; night, -1°; clear

Average data for 10 years

Selfoss December

4

sunny days

18

days with precipitation

17

cloudy days

4 sunny days; 18 days with precipitation; 17 cloudy days;

81

%

air humidity

3.8

m/s

WindSE

159

mm of precipitation

(11% of annual average)

+6

°C

Water temperature

air humidity 81%; 159 millimeters of precipitation (11% of annual average); Wind south-easterly 3.8 Meters per second; Water temperature +6°

Weather graphs for December

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

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SE

1

Average data for 10 years

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Daytime temperature

Night-time temperature

Cities near you

Reykyavik
Torshavn
Akureyri
Isafjordur
Jan Mayen
Vestmannaeyjar
Borgarnes
Akranes
Sejdisfjordur

Cities with similar weather in December

Helsinki
Riga
Tallinn
Stockholm
Oslo
Yurmala
Toronto
Palanga
Chicago

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

In December, the weather in Selfoss is typically cold. Average daily high temperature in December is about 1 degree above zero. On average, Selfoss has 9 rainy, 8 cloudy, 7 partly cloudy, 4 sunny, and 3 snowy 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 Selfoss.

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