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December weather forecast in Sihanoukville

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

	748 mmHg		69%
	6 m/s		+29

30 November, Sunday. day, 29°; night, 27°; clear

1 December, mon

	748 mmHg		68%
	6.1 m/s		+29

1 December, Monday. day, 28°; night, 27°; overcast

2 December, tue

	748 mmHg		68%
	6 m/s		+29

2 December, Tuesday. day, 28°; night, 27°; overcast

3 December, wed

	748 mmHg		68%
	6.1 m/s		+29

3 December, Wednesday. day, 29°; night, 27°; overcast

4 December, thu

	748 mmHg		67%
	6.1 m/s		+29

4 December, Thursday. day, 29°; night, 26°; overcast

5 December, fri

	748 mmHg		66%
	5.8 m/s		+29

5 December, Friday. day, 29°; night, 26°; overcast

6 December, sat

	748 mmHg		68%
	4.9 m/s		+29

6 December, Saturday. day, 29°; night, 27°; rain

7 December, sun

	748 mmHg		68%
	5 m/s		+29

7 December, Sunday. day, 29°; night, 27°; partly cloudy

8 December, mon

	748 mmHg		68%
	5.9 m/s		+29

8 December, Monday. day, 29°; night, 27°; clear

9 December, tue

	749 mmHg		68%
	5.9 m/s		+29

9 December, Tuesday. day, 28°; night, 27°; partly cloudy

10 December, wed

	748 mmHg		68%
	4.5 m/s		+29

10 December, Wednesday. day, 28°; night, 26°; partly cloudy

11 December, thu

	748 mmHg		68%
	4.5 m/s		+29

11 December, Thursday. day, 28°; night, 26°; partly cloudy

12 December, fri

	748 mmHg		68%
	4.4 m/s		+29

12 December, Friday. day, 28°; night, 26°; clear

13 December, sat

	748 mmHg		68%
	4 m/s		+29

13 December, Saturday. day, 29°; night, 26°; overcast

14 December, sun

	748 mmHg		70%
	4.1 m/s		+29

14 December, Sunday. day, 28°; night, 27°; overcast

15 December, mon

	748 mmHg		73%
	4 m/s		+29

15 December, Monday. day, 28°; night, 26°; clear

16 December, tue

	748 mmHg		70%
	5 m/s		+29

16 December, Tuesday. day, 29°; night, 27°; rain

17 December, wed

	749 mmHg		69%
	7.1 m/s		+29

17 December, Wednesday. day, 27°; night, 27°; overcast

18 December, thu

	749 mmHg		64%
	7 m/s		+29

18 December, Thursday. day, 27°; night, 25°; overcast

19 December, fri

	750 mmHg		62%
	5.9 m/s		+29

19 December, Friday. day, 28°; night, 25°; overcast

20 December, sat

	749 mmHg		63%
	5 m/s		+29

20 December, Saturday. day, 28°; night, 25°; rain

21 December, sun

	749 mmHg		66%
	5 m/s		+29

21 December, Sunday. day, 28°; night, 25°; overcast

22 December, mon

	748 mmHg		67%
	6 m/s		+29

22 December, Monday. day, 28°; night, 26°; overcast

23 December, tue

	748 mmHg		67%
	5.5 m/s		+29

23 December, Tuesday. day, 28°; night, 26°; partly cloudy

24 December, wed

	748 mmHg		66%
	5.5 m/s		+29

24 December, Wednesday. day, 29°; night, 26°; overcast

25 December, thu

	748 mmHg		67%
	5.9 m/s		+29

25 December, Thursday. day, 28°; night, 26°; overcast

26 December, fri

	748 mmHg		64%
	5.6 m/s		+29

26 December, Friday. day, 28°; night, 26°; clear

27 December, sat

	749 mmHg		68%
	5.1 m/s		+29

27 December, Saturday. day, 28°; night, 26°; overcast

28 December, sun

	749 mmHg		67%
	5.1 m/s		+29

28 December, Sunday. day, 28°; night, 26°; overcast

29 December, mon

	749 mmHg		62%
	5.9 m/s		+29

29 December, Monday. day, 28°; night, 26°; overcast

30 December, tue

	749 mmHg		64%
	4.5 m/s		+29

30 December, Tuesday. day, 28°; night, 26°; overcast

31 December, wed

	749 mmHg		63%
	6 m/s		+28

31 December, Wednesday. day, 28°; night, 26°; rain

1 January, thu

	749 mmHg		64%
	6.8 m/s		+29

1 January, Thursday. day, 28°; night, 26°; overcast

2 January, fri

	749 mmHg		62%
	6.5 m/s		+28

2 January, Friday. day, 28°; night, 25°; overcast

3 January, sat

	749 mmHg		66%
	5.5 m/s		+28

3 January, Saturday. day, 28°; night, 26°; overcast

Average data for 10 years

Sihanoukville December

4

sunny days

4

days with precipitation

23

cloudy days

4 sunny days; 4 days with precipitation; 23 cloudy days;

67

%

air humidity

3.9

m/s

WindNE

51

mm of precipitation

(2% of annual average)

+29

°C

Water temperature

air humidity 67%; 51 millimeters of precipitation (2% of annual average); Wind north-easterly 3.9 Meters per second; Water temperature +29°

Weather graphs for December

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

NE

NE

E

E

E

E

NE

NE

NE

NE

E

NE

NE

N

NE

E

NE

NE

NE

NE

NE

NE

E

NE

NE

NE

E

E

NE

NE

NE

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

Pattaya
Phú Quốc
Samui
Ho Chi Minh
Ko Chang
Phnom Penh
Vũng Tàu
Siem Reap
Côn Đảo

Cities with similar weather in December

Pattaya
Bangkok
Goa
Male
Singapore
Zanzibar
Denpasar
Victoria
Galle

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

In December, the weather in Sihanoukville is typically hot. Average daily high temperature in December is about 28 degrees above zero. On average, Sihanoukville has 18 cloudy, 5 partly cloudy, 4 rainy, and 4 sunny days in December. The rains are usually light.

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