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December weather forecast in Nantucket

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

	764 mmHg		72%
	10.9 m/s		+11

30 November, Sunday. day, 8°; night, 6°; rain

1 December, mon

	761 mmHg		75%
	11.8 m/s		+11

1 December, Monday. day, 9°; night, 6°; rain

2 December, tue

	762 mmHg		70%
	11.5 m/s		+11

2 December, Tuesday. day, 9°; night, 5°; clear

3 December, wed

	762 mmHg		72%
	10.9 m/s		+11

3 December, Wednesday. day, 8°; night, 5°; clear

4 December, thu

	763 mmHg		70%
	10 m/s		+10

4 December, Thursday. day, 8°; night, 5°; clear

5 December, fri

	764 mmHg		71%
	9.5 m/s		+10

5 December, Friday. day, 7°; night, 5°; partly cloudy

6 December, sat

	762 mmHg		73%
	11.4 m/s		+10

6 December, Saturday. day, 7°; night, 4°; rain

7 December, sun

	761 mmHg		71%
	11 m/s		+10

7 December, Sunday. day, 7°; night, 5°; rain

8 December, mon

	763 mmHg		69%
	11.1 m/s		+10

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

9 December, tue

	766 mmHg		70%
	10.7 m/s		+10

9 December, Tuesday. day, 6°; night, 3°; partly cloudy

10 December, wed

	763 mmHg		75%
	10.4 m/s		+10

10 December, Wednesday. day, 7°; night, 4°; rain

11 December, thu

	762 mmHg		75%
	10.6 m/s		+10

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

12 December, fri

	763 mmHg		72%
	11.5 m/s		+10

12 December, Friday. day, 7°; night, 4°; partly cloudy

13 December, sat

	765 mmHg		70%
	10.1 m/s		+10

13 December, Saturday. day, 6°; night, 3°; clear

14 December, sun

	764 mmHg		73%
	10.7 m/s		+9

14 December, Sunday. day, 6°; night, 3°; rain

15 December, mon

	763 mmHg		73%
	10.8 m/s		+9

15 December, Monday. day, 6°; night, 3°; partly cloudy

16 December, tue

	764 mmHg		73%
	11.5 m/s		+9

16 December, Tuesday. day, 6°; night, 3°; rain

17 December, wed

	762 mmHg		76%
	11.5 m/s		+9

17 December, Wednesday. day, 7°; night, 4°; rain

18 December, thu

	761 mmHg		74%
	11.5 m/s		+9

18 December, Thursday. day, 6°; night, 3°; rain

19 December, fri

	762 mmHg		70%
	10.7 m/s		+9

19 December, Friday. day, 6°; night, 2°; partly cloudy

20 December, sat

	762 mmHg		73%
	11.3 m/s		+9

20 December, Saturday. day, 5°; night, 3°; overcast

21 December, sun

	763 mmHg		73%
	11.5 m/s		+8

21 December, Sunday. day, 6°; night, 2°; overcast

22 December, mon

	763 mmHg		73%
	10.8 m/s		+8

22 December, Monday. day, 6°; night, 3°; partly cloudy

23 December, tue

	764 mmHg		75%
	11.2 m/s		+8

23 December, Tuesday. day, 6°; night, 3°; clear

24 December, wed

	763 mmHg		75%
	11.1 m/s		+8

24 December, Wednesday. day, 7°; night, 3°; rain

25 December, thu

	763 mmHg		74%
	10.8 m/s		+8

25 December, Thursday. day, 6°; night, 3°; partly cloudy

26 December, fri

	764 mmHg		72%
	10.6 m/s		+8

26 December, Friday. day, 5°; night, 2°; overcast

27 December, sat

	762 mmHg		74%
	11.1 m/s		+8

27 December, Saturday. day, 5°; night, 2°; partly cloudy

28 December, sun

	762 mmHg		74%
	10.7 m/s		+8

28 December, Sunday. day, 6°; night, 2°; clear

29 December, mon

	762 mmHg		74%
	10.7 m/s		+8

29 December, Monday. day, 6°; night, 2°; partly cloudy

30 December, tue

	760 mmHg		73%
	11.3 m/s		+8

30 December, Tuesday. day, 6°; night, 2°; clear

31 December, wed

	762 mmHg		73%
	10.6 m/s		+8

31 December, Wednesday. day, 5°; night, 2°; rain

1 January, thu

	763 mmHg		74%
	10.5 m/s		+8

1 January, Thursday. day, 4°; night, 2°; clear

2 January, fri

	763 mmHg		74%
	10.3 m/s		+7

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

3 January, sat

	762 mmHg		75%
	11.5 m/s		+7

3 January, Saturday. day, 5°; night, 1°; rain

Average data for 10 years

Nantucket December

7

sunny days

12

days with precipitation

11

cloudy days

7 sunny days; 12 days with precipitation; 11 cloudy days;

73

%

air humidity

7.8

m/s

WindSW

123

mm of precipitation

(10% of annual average)

+9

°C

Water temperature

air humidity 73%; 123 millimeters of precipitation (10% of annual average); Wind south-westerly 7.8 Meters per second; Water temperature +9°

Weather graphs for December

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

SW

SW

W

W

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

S

SW

W

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

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

New York
Boston
Islandia
Jamaica
Brookhaven
Portland
Berlin
Albany
Bangor

Cities with similar weather in December

New York
Burgas
Varna
Dublin
Copenhagen
The Golden Sands
Edinburgh
Bergen
Busan

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

In December, the weather in Nantucket is typically cold. Average daily high temperature in December is about 6 degrees above zero. On average, Nantucket has 11 rainy, 10 partly cloudy, 7 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 Nantucket.

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