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Monthly weather forecast in Mariehamn

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

1 December, sun

	760 mmHg		92%
	8.3 m/s		+3

Climate normal

1 December, Sunday. day, 6°; night, 4°; overcast

2 December, mon

	751 mmHg		87%
	10.3 m/s		+3

Climate normal

2 December, Monday. day, 5°; night, 0°; light rain

3 December, tue

	760 mmHg		75%
	6.3 m/s		+3

Climate normal

3 December, Tuesday. day, 0°; night, -2°; sleet

4 December, wed

	772 mmHg		78%
	4.3 m/s		+3

Climate normal

4 December, Wednesday. day, 0°; night, 0°; partly cloudy

5 December, thu

	768 mmHg		84%
	7.4 m/s		+2

Climate normal

5 December, Thursday. day, 1°; night, 0°; sleet

6 December, fri

	758 mmHg		88%
	8.1 m/s		+2

Climate normal

6 December, Friday. day, 2°; night, 2°; sleet

7 December, sat

	750 mmHg		91%
	11.7 m/s		+2

Climate normal

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

8 December, sun

	754 mmHg		92%
	8.6 m/s		+2

Climate normal

8 December, Sunday. day, 2°; night, 1°; light rain

9 December, mon

	764 mmHg		87%
	6.2 m/s		+2

Climate normal

9 December, Monday. day, 2°; night, 1°; partly cloudy

10 December, tue

	759 mmHg		84%
	9.2 m/s		+5

Climate normal

10 December, Tuesday. day, 3°; night, 2°; partly cloudy

11 December, wed

	753 mmHg		85%
	10.3 m/s		+2

Climate normal

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

12 December, thu

	751 mmHg		84%
	8.8 m/s		0

Climate normal

12 December, Thursday. day, 1°; night, 0°; overcast

13 December, fri

	772 mmHg		81%
	7.2 m/s		+2

Climate normal

13 December, Friday. day, 3°; night, 3°; partly cloudy

14 December, sat

	783 mmHg		78%
	3.6 m/s		+2

Climate normal

14 December, Saturday. day, 3°; night, 3°; partly cloudy

15 December, sun

	782 mmHg		75%
	6.3 m/s		+1

Climate normal

15 December, Sunday. day, 2°; night, 1°; partly cloudy

16 December, mon

	778 mmHg		78%
	8.1 m/s		0

Climate normal

16 December, Monday. day, 1°; night, 2°; clear

17 December, tue

	780 mmHg		83%
	5.1 m/s		+3

Climate normal

17 December, Tuesday. day, 4°; night, 4°; clear

18 December, wed

	783 mmHg		88%
	3.2 m/s		+2

Climate normal

18 December, Wednesday. day, 3°; night, 3°; mostly clear

19 December, thu

	784 mmHg		79%
	6.9 m/s		+2

Climate normal

19 December, Thursday. day, 3°; night, 2°; clear

20 December, fri

	784 mmHg		81%
	5.6 m/s		+3

Climate normal

20 December, Friday. day, 4°; night, 4°; clear

21 December, sat

	783 mmHg		78%
	7 m/s		+2

Climate normal

21 December, Saturday. day, 3°; night, 2°; clear

22 December, sun

	777 mmHg		80%
	11.6 m/s		+3

Climate normal

22 December, Sunday. day, 4°; night, 4°; partly cloudy

23 December, mon

	779 mmHg		71%
	10 m/s		+2

Climate normal

23 December, Monday. day, 3°; night, 0°; clear

24 December, tue

	779 mmHg		78%
	5.3 m/s		0

Climate normal

24 December, Tuesday. day, 1°; night, 1°; clear

25 December, wed

	768 mmHg		82%
	10.7 m/s		+2

Climate normal

25 December, Wednesday. day, 3°; night, 4°; partly cloudy

26 December, thu

	770 mmHg		66%
	10.5 m/s		+2

Climate normal

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

27 December, fri

	777 mmHg		62%
	4.6 m/s		0

Climate normal

27 December, Friday. day, -1°; night, -1°; partly cloudy

28 December, sat

	777 mmHg		66%
	4.8 m/s		0

Climate normal

28 December, Saturday. day, -1°; night, 0°; partly cloudy

29 December, sun

	773 mmHg		76%
	7 m/s		0

Climate normal

29 December, Sunday. day, 0°; night, 0°; clear

30 December, mon

	764 mmHg		78%
	9.3 m/s		0

Climate normal

30 December, Monday. day, 0°; night, 0°; clear

Average data for 10 years

Next, the average data for 10 years

31 December, tue

	743 mmHg		81%
	11.8 m/s		+4

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

1 January, wed

	741 mmHg		81%
	12.1 m/s		+3

1 January, Wednesday. day, 3°; night, 2°; rain

2 January, thu

	744 mmHg		80%
	11.1 m/s		+3

2 January, Thursday. day, 0°; night, 0°; snow

3 January, fri

	741 mmHg		77%
	11.1 m/s		+3

3 January, Friday. day, 1°; night, 0°; rain

4 January, sat

	740 mmHg		75%
	13.3 m/s		+3

4 January, Saturday. day, 0°; night, 0°; snow

Average for 30 days

10

sunny days

6

days with precipitation

14

cloudy days

10 sunny days; 6 days with precipitation; 14 cloudy days;

80

%

air humidity

7.5

m/s

WindNW

16

mm of precipitation

(4% of annual average)

+2

°C

Water temperature

air humidity 80%; 16 millimeters of precipitation (4% of annual average); Wind north-westerly 7.5 Meters per second; Water temperature +2°

Forecast in graphs

TemperatureWater temperatureHumidity, %Wind, m/sPressure, mmHg

SW

SW

NW

E

SE

SE

SE

E

NW

W

SW

W

SW

SW

S

W

NW

NW

W

NW

NW

NW

N

W

NW

N

E

S

S

SE

1

December

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

Daytime temperature

Night-time temperature

Weather forecast for the month based on historical data from the last 10 years.

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