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December weather forecast in Friday Harbor

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

	761 mmHg		82%
	8.7 m/s		+11

30 November, Sunday. day, 7°; night, 6°; rain

1 December, mon

	761 mmHg		82%
	7.6 m/s		+11

1 December, Monday. day, 7°; night, 5°; overcast

2 December, tue

	761 mmHg		82%
	8 m/s		+10

2 December, Tuesday. day, 7°; night, 5°; rain

3 December, wed

	763 mmHg		80%
	7 m/s		+10

3 December, Wednesday. day, 7°; night, 5°; clear

4 December, thu

	764 mmHg		79%
	7 m/s		+10

4 December, Thursday. day, 7°; night, 5°; clear

5 December, fri

	764 mmHg		79%
	6.5 m/s		+10

5 December, Friday. day, 6°; night, 5°; clear

6 December, sat

	762 mmHg		80%
	6.9 m/s		+10

6 December, Saturday. day, 6°; night, 5°; partly cloudy

7 December, sun

	762 mmHg		81%
	7.3 m/s		+10

7 December, Sunday. day, 6°; night, 5°; partly cloudy

8 December, mon

	762 mmHg		79%
	7.5 m/s		+10

8 December, Monday. day, 6°; night, 5°; clear

9 December, tue

	763 mmHg		80%
	7.3 m/s		+10

9 December, Tuesday. day, 6°; night, 4°; partly cloudy

10 December, wed

	761 mmHg		84%
	8.2 m/s		+10

10 December, Wednesday. day, 7°; night, 5°; rain

11 December, thu

	760 mmHg		83%
	7.8 m/s		+10

11 December, Thursday. day, 7°; night, 5°; rain

12 December, fri

	759 mmHg		83%
	8.5 m/s		+10

12 December, Friday. day, 7°; night, 5°; rain

13 December, sat

	758 mmHg		81%
	8.3 m/s		+10

13 December, Saturday. day, 7°; night, 5°; rain

14 December, sun

	759 mmHg		80%
	8.6 m/s		+10

14 December, Sunday. day, 6°; night, 5°; rain

15 December, mon

	761 mmHg		81%
	9.5 m/s		+10

15 December, Monday. day, 6°; night, 5°; rain

16 December, tue

	762 mmHg		82%
	8.7 m/s		+9

16 December, Tuesday. day, 7°; night, 5°; rain

17 December, wed

	762 mmHg		83%
	7.8 m/s		+10

17 December, Wednesday. day, 6°; night, 5°; overcast

18 December, thu

	761 mmHg		81%
	8.39 m/s		+9

18 December, Thursday. day, 7°; night, 5°; rain

19 December, fri

	761 mmHg		81%
	8.7 m/s		+9

19 December, Friday. day, 6°; night, 4°; rain

20 December, sat

	760 mmHg		82%
	9.1 m/s		+9

20 December, Saturday. day, 6°; night, 4°; rain

21 December, sun

	761 mmHg		81%
	7.8 m/s		+9

21 December, Sunday. day, 6°; night, 4°; rain

22 December, mon

	762 mmHg		82%
	7.6 m/s		+9

22 December, Monday. day, 6°; night, 4°; rain

23 December, tue

	763 mmHg		82%
	7.7 m/s		+9

23 December, Tuesday. day, 6°; night, 4°; partly cloudy

24 December, wed

	762 mmHg		82%
	7.6 m/s		+9

24 December, Wednesday. day, 6°; night, 4°; rain

25 December, thu

	762 mmHg		83%
	7.6 m/s		+9

25 December, Thursday. day, 6°; night, 4°; rain

26 December, fri

	761 mmHg		81%
	8.6 m/s		+9

26 December, Friday. day, 6°; night, 4°; rain

27 December, sat

	760 mmHg		82%
	8.6 m/s		+9

27 December, Saturday. day, 6°; night, 4°; rain

28 December, sun

	761 mmHg		83%
	7.7 m/s		+9

28 December, Sunday. day, 6°; night, 4°; rain

29 December, mon

	760 mmHg		83%
	7.6 m/s		+9

29 December, Monday. day, 6°; night, 4°; overcast

30 December, tue

	761 mmHg		82%
	8 m/s		+10

30 December, Tuesday. day, 6°; night, 4°; partly cloudy

31 December, wed

	762 mmHg		82%
	7.2 m/s		+10

31 December, Wednesday. day, 6°; night, 4°; rain

1 January, thu

	762 mmHg		81%
	7.1 m/s		+9

1 January, Thursday. day, 6°; night, 4°; overcast

2 January, fri

	760 mmHg		79%
	7.9 m/s		+9

2 January, Friday. day, 6°; night, 4°; rain

3 January, sat

	760 mmHg		81%
	8.1 m/s		+9

3 January, Saturday. day, 6°; night, 4°; rain

Average data for 10 years

Friday Harbor December

4

sunny days

19

days with precipitation

16

cloudy days

4 sunny days; 19 days with precipitation; 16 cloudy days;

81

%

air humidity

5.3

m/s

WindSE

170

mm of precipitation

(15% of annual average)

+10

°C

Water temperature

air humidity 81%; 170 millimeters of precipitation (15% of annual average); Wind south-easterly 5.3 Meters per second; Water temperature +10°

Weather graphs for December

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

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S

S

SE

S

SE

SE

S

SE

SE

SE

S

S

SE

S

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

S

SE

SE

SE

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

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18

19

20

21

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27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Vancouver
Seattle
Portland
Salem
Victoria
Vancouver
Mount Ranier National Park
Courtenay
Kelowna

Cities with similar weather in December

Gagra
Suhum
Baku
Pitsunda
New Athos
The Sunny Beach
Podgorica
Gudauta
Pomorie

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

December in Friday Harbor is the windiest month of the year. In December, the weather in Friday Harbor is typically cold. Average daily high temperature in December is about 6 degrees above zero. On average, Friday Harbor has 18 rainy, 6 partly cloudy, 4 sunny, and 3 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 Friday Harbor.

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