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December weather forecast in Uusikaupunki

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		82%
	9.3 m/s		+5

30 November, Sunday. day, 3°; night, 1°; rain

1 December, mon

	754 mmHg		81%
	11 m/s		+5

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

2 December, tue

	756 mmHg		80%
	8.8 m/s		+5

2 December, Tuesday. day, 2°; night, 1°; overcast

3 December, wed

	755 mmHg		81%
	9.6 m/s		+5

3 December, Wednesday. day, 2°; night, 1°; overcast

4 December, thu

	752 mmHg		80%
	9.1 m/s		+5

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

5 December, fri

	750 mmHg		80%
	10.1 m/s		+5

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

6 December, sat

	748 mmHg		82%
	9.5 m/s		+5

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

7 December, sun

	753 mmHg		82%
	9.5 m/s		+5

7 December, Sunday. day, 2°; night, 1°; rain

8 December, mon

	756 mmHg		85%
	8 m/s		+4

8 December, Monday. day, 2°; night, 1°; overcast

9 December, tue

	755 mmHg		87%
	8.6 m/s		+4

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

10 December, wed

	754 mmHg		86%
	10 m/s		+4

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

11 December, thu

	755 mmHg		85%
	7.9 m/s		+4

11 December, Thursday. day, 1°; night, 2°; rain

12 December, fri

	755 mmHg		85%
	8.6 m/s		+4

12 December, Friday. day, 1°; night, -1°; rain

13 December, sat

	756 mmHg		82%
	10.3 m/s		+4

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

14 December, sun

	759 mmHg		81%
	8.8 m/s		+3

14 December, Sunday. day, 0°; night, -1°; snow

15 December, mon

	759 mmHg		85%
	9.6 m/s		+3

15 December, Monday. day, 0°; night, 0°; overcast

16 December, tue

	757 mmHg		81%
	9.6 m/s		+4

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

17 December, wed

	758 mmHg		86%
	9.1 m/s		+3

17 December, Wednesday. day, 0°; night, 1°; overcast

18 December, thu

	757 mmHg		88%
	8.3 m/s		+3

18 December, Thursday. day, 0°; night, -1°; snow

19 December, fri

	756 mmHg		86%
	8.3 m/s		+3

19 December, Friday. day, 1°; night, 0°; rain

20 December, sat

	755 mmHg		87%
	9.1 m/s		+3

20 December, Saturday. day, 1°; night, 0°; rain

21 December, sun

	755 mmHg		86%
	8.6 m/s		+3

21 December, Sunday. day, 0°; night, 1°; clear

22 December, mon

	754 mmHg		86%
	9 m/s		+3

22 December, Monday. day, 0°; night, 0°; snow

23 December, tue

	752 mmHg		86%
	10.1 m/s		+3

23 December, Tuesday. day, -1°; night, -1°; snow

24 December, wed

	755 mmHg		81%
	10 m/s		+2

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

25 December, thu

	753 mmHg		83%
	10.3 m/s		+2

25 December, Thursday. day, 0°; night, -1°; snow

26 December, fri

	752 mmHg		80%
	11 m/s		+3

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

27 December, sat

	753 mmHg		81%
	9.1 m/s		+3

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

28 December, sun

	757 mmHg		83%
	8.6 m/s		+3

28 December, Sunday. day, 1°; night, 0°; rain

29 December, mon

	760 mmHg		85%
	8.3 m/s		+2

29 December, Monday. day, 1°; night, -1°; overcast

30 December, tue

	759 mmHg		87%
	9 m/s		+2

30 December, Tuesday. day, 1°; night, 0°; rain

31 December, wed

	757 mmHg		86%
	8.6 m/s		+3

31 December, Wednesday. day, 2°; night, 1°; clear

1 January, thu

	755 mmHg		83%
	9.6 m/s		+2

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

2 January, fri

	758 mmHg		83%
	8.3 m/s		+2

2 January, Friday. day, -2°; night, -2°; snow

3 January, sat

	756 mmHg		81%
	8.6 m/s		+2

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

Average data for 10 years

Uusikaupunki December

2

sunny days

20

days with precipitation

9

cloudy days

2 sunny days; 20 days with precipitation; 9 cloudy days;

83

%

air humidity

7.3

m/s

WindSW

71

mm of precipitation

(12% of annual average)

+3

°C

Water temperature

air humidity 83%; 71 millimeters of precipitation (12% of annual average); Wind south-westerly 7.3 Meters per second; Water temperature +3°

Weather graphs for December

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

W

W

W

SW

SW

W

S

SW

S

SW

SW

S

W

S

S

S

SE

S

S

SW

SW

SW

SW

NW

S

W

W

SW

SW

W

SW

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

Tallinn
Helsinki
Stockholm
Pori
Kuressaare
Vaasa
Ventspils
Uppsala
Tampere

Cities with similar weather in December

Riga
Reykyavik
Oslo
Yurmala
Toronto
Palanga
Chicago
Gdansk
Klaipeda

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

December in Uusikaupunki is the windiest month of the year. In December, the weather in Uusikaupunki is typically cold. Average daily high temperature in December is about 1 degree above zero. On average, Uusikaupunki has 14 rainy, 8 cloudy, 7 snowy, and 2 sunny days in December. The rains are usually moderate. December as well as March, October, and November is considered the most uncomfortable time to visit Uusikaupunki.

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