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December weather forecast in Key West

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

	763 mmHg		76%
	8.39 m/s		+26

30 November, Sunday. day, 24°; night, 22°; clear

1 December, mon

	764 mmHg		77%
	8.1 m/s		+26

1 December, Monday. day, 23°; night, 22°; clear

2 December, tue

	764 mmHg		76%
	7.9 m/s		+26

2 December, Tuesday. day, 23°; night, 22°; clear

3 December, wed

	764 mmHg		76%
	7.5 m/s		+26

3 December, Wednesday. day, 23°; night, 22°; clear

4 December, thu

	764 mmHg		77%
	7.4 m/s		+26

4 December, Thursday. day, 23°; night, 22°; clear

5 December, fri

	764 mmHg		79%
	7.6 m/s		+26

5 December, Friday. day, 23°; night, 22°; clear

6 December, sat

	764 mmHg		79%
	7.3 m/s		+26

6 December, Saturday. day, 23°; night, 22°; clear

7 December, sun

	764 mmHg		80%
	7.1 m/s		+26

7 December, Sunday. day, 23°; night, 22°; clear

8 December, mon

	764 mmHg		79%
	7.5 m/s		+26

8 December, Monday. day, 23°; night, 22°; partly cloudy

9 December, tue

	764 mmHg		80%
	7.9 m/s		+25

9 December, Tuesday. day, 23°; night, 22°; clear

10 December, wed

	764 mmHg		81%
	7.7 m/s		+25

10 December, Wednesday. day, 23°; night, 22°; clear

11 December, thu

	764 mmHg		80%
	7.8 m/s		+25

11 December, Thursday. day, 23°; night, 22°; rain

12 December, fri

	764 mmHg		78%
	8.1 m/s		+25

12 December, Friday. day, 23°; night, 22°; partly cloudy

13 December, sat

	764 mmHg		79%
	8 m/s		+25

13 December, Saturday. day, 23°; night, 22°; rain

14 December, sun

	763 mmHg		79%
	8.39 m/s		+25

14 December, Sunday. day, 23°; night, 22°; clear

15 December, mon

	764 mmHg		79%
	7.7 m/s		+25

15 December, Monday. day, 23°; night, 21°; clear

16 December, tue

	764 mmHg		79%
	7.9 m/s		+25

16 December, Tuesday. day, 23°; night, 22°; clear

17 December, wed

	763 mmHg		78%
	8.1 m/s		+25

17 December, Wednesday. day, 23°; night, 22°; rain

18 December, thu

	764 mmHg		79%
	7.6 m/s		+25

18 December, Thursday. day, 22°; night, 22°; overcast

19 December, fri

	764 mmHg		79%
	8.2 m/s		+25

19 December, Friday. day, 23°; night, 21°; partly cloudy

20 December, sat

	764 mmHg		78%
	8.5 m/s		+25

20 December, Saturday. day, 22°; night, 21°; overcast

21 December, sun

	764 mmHg		77%
	8.89 m/s		+25

21 December, Sunday. day, 22°; night, 21°; partly cloudy

22 December, mon

	764 mmHg		77%
	8.39 m/s		+25

22 December, Monday. day, 22°; night, 21°; partly cloudy

23 December, tue

	764 mmHg		79%
	8 m/s		+25

23 December, Tuesday. day, 22°; night, 21°; partly cloudy

24 December, wed

	764 mmHg		80%
	7.9 m/s		+25

24 December, Wednesday. day, 23°; night, 21°; clear

25 December, thu

	764 mmHg		81%
	8.2 m/s		+25

25 December, Thursday. day, 22°; night, 21°; rain

26 December, fri

	764 mmHg		80%
	8.5 m/s		+25

26 December, Friday. day, 22°; night, 21°; partly cloudy

27 December, sat

	765 mmHg		79%
	7.8 m/s		+25

27 December, Saturday. day, 22°; night, 20°; partly cloudy

28 December, sun

	764 mmHg		77%
	8 m/s		+25

28 December, Sunday. day, 22°; night, 21°; rain

29 December, mon

	764 mmHg		79%
	7.8 m/s		+25

29 December, Monday. day, 22°; night, 21°; clear

30 December, tue

	764 mmHg		79%
	7.5 m/s		+25

30 December, Tuesday. day, 22°; night, 21°; partly cloudy

31 December, wed

	765 mmHg		79%
	6.9 m/s		+25

31 December, Wednesday. day, 22°; night, 21°; clear

1 January, thu

	765 mmHg		81%
	7.7 m/s		+25

1 January, Thursday. day, 23°; night, 21°; clear

2 January, fri

	765 mmHg		82%
	7.5 m/s		+25

2 January, Friday. day, 23°; night, 21°; partly cloudy

3 January, sat

	764 mmHg		82%
	8 m/s		+25

3 January, Saturday. day, 22°; night, 21°; rain

Average data for 10 years

Key West December

15

sunny days

5

days with precipitation

3

cloudy days

15 sunny days; 5 days with precipitation; 3 cloudy days;

79

%

air humidity

6.2

m/s

WindSE

34

mm of precipitation

(4% of annual average)

+25

°C

Water temperature

air humidity 79%; 34 millimeters of precipitation (4% of annual average); Wind south-easterly 6.2 Meters per second; Water temperature +25°

Weather graphs for December

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

SE

E

E

E

E

SE

SE

E

SE

SE

SE

E

E

SE

SE

SE

SE

SE

SE

SE

SE

E

E

SE

SE

SE

SE

E

SE

SE

SE

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

Varadero
Havana
Miami
Cayo Coco
Tampa
Cayo Guillermo
Miami Beach
Madeira Beach
Sarasota

Cities with similar weather in December

Dubai
Nha Trang
Sanya
Sharjah
Abu Dhabi
Sydney
Ras al-Khaimah
Buenos Aires
Fudjeyra

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

In December, the weather in Key West is typically warm. Average daily high temperature in December is about 23 degrees above zero. On average, Key West has 15 sunny, 9 partly cloudy, 5 rainy, and 2 cloudy days in December. The rains are usually light. December as well as January, February, March, and April is considered the most comfortable time to visit Key West.

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