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December weather forecast in Unawatuna

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

	758 mmHg		81%
	4.8 m/s		+29

30 November, Sunday. day, 27°; night, 25°; clear

1 December, mon

	758 mmHg		81%
	4 m/s		+29

1 December, Monday. day, 27°; night, 25°; rain

2 December, tue

	758 mmHg		82%
	4.19 m/s		+29

2 December, Tuesday. day, 27°; night, 25°; rain

3 December, wed

	758 mmHg		83%
	4.19 m/s		+28

3 December, Wednesday. day, 27°; night, 25°; rain

4 December, thu

	758 mmHg		84%
	4.3 m/s		+29

4 December, Thursday. day, 27°; night, 25°; rain

5 December, fri

	758 mmHg		83%
	4.19 m/s		+28

5 December, Friday. day, 27°; night, 25°; rain

6 December, sat

	758 mmHg		83%
	4.4 m/s		+28

6 December, Saturday. day, 27°; night, 25°; rain

7 December, sun

	758 mmHg		82%
	4.4 m/s		+28

7 December, Sunday. day, 27°; night, 25°; rain

8 December, mon

	758 mmHg		83%
	4.5 m/s		+28

8 December, Monday. day, 27°; night, 25°; rain

9 December, tue

	758 mmHg		82%
	4.69 m/s		+28

9 December, Tuesday. day, 27°; night, 25°; rain

10 December, wed

	758 mmHg		82%
	4.4 m/s		+28

10 December, Wednesday. day, 27°; night, 25°; rain

11 December, thu

	758 mmHg		81%
	4.19 m/s		+28

11 December, Thursday. day, 27°; night, 25°; partly cloudy

12 December, fri

	758 mmHg		82%
	4.69 m/s		+28

12 December, Friday. day, 27°; night, 25°; rain

13 December, sat

	758 mmHg		83%
	4.3 m/s		+29

13 December, Saturday. day, 27°; night, 25°; rain

14 December, sun

	758 mmHg		82%
	4.19 m/s		+28

14 December, Sunday. day, 27°; night, 25°; rain

15 December, mon

	758 mmHg		82%
	4 m/s		+29

15 December, Monday. day, 27°; night, 25°; rain

16 December, tue

	758 mmHg		82%
	4.19 m/s		+28

16 December, Tuesday. day, 27°; night, 25°; rain

17 December, wed

	758 mmHg		81%
	4.4 m/s		+29

17 December, Wednesday. day, 27°; night, 25°; partly cloudy

18 December, thu

	758 mmHg		83%
	4.19 m/s		+29

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

19 December, fri

	758 mmHg		83%
	4.19 m/s		+29

19 December, Friday. day, 27°; night, 25°; rain

20 December, sat

	758 mmHg		83%
	4 m/s		+29

20 December, Saturday. day, 27°; night, 25°; rain

21 December, sun

	758 mmHg		83%
	4.1 m/s		+29

21 December, Sunday. day, 27°; night, 25°; rain

22 December, mon

	758 mmHg		83%
	4.3 m/s		+29

22 December, Monday. day, 27°; night, 25°; rain

23 December, tue

	758 mmHg		81%
	4.6 m/s		+28

23 December, Tuesday. day, 27°; night, 25°; partly cloudy

24 December, wed

	758 mmHg		81%
	4.3 m/s		+28

24 December, Wednesday. day, 27°; night, 25°; clear

25 December, thu

	758 mmHg		81%
	4.5 m/s		+28

25 December, Thursday. day, 27°; night, 25°; clear

26 December, fri

	758 mmHg		79%
	4.6 m/s		+29

26 December, Friday. day, 27°; night, 25°; clear

27 December, sat

	758 mmHg		80%
	4.4 m/s		+28

27 December, Saturday. day, 27°; night, 25°; partly cloudy

28 December, sun

	758 mmHg		81%
	4 m/s		+28

28 December, Sunday. day, 27°; night, 25°; partly cloudy

29 December, mon

	758 mmHg		80%
	3.7 m/s		+28

29 December, Monday. day, 27°; night, 25°; clear

30 December, tue

	758 mmHg		80%
	3.4 m/s		+28

30 December, Tuesday. day, 27°; night, 25°; clear

31 December, wed

	758 mmHg		80%
	3.5 m/s		+28

31 December, Wednesday. day, 27°; night, 25°; clear

1 January, thu

	759 mmHg		80%
	3.6 m/s		+29

1 January, Thursday. day, 27°; night, 25°; rain

2 January, fri

	759 mmHg		81%
	4.1 m/s		+29

2 January, Friday. day, 27°; night, 25°; rain

3 January, sat

	759 mmHg		81%
	4.1 m/s		+29

3 January, Saturday. day, 27°; night, 25°; rain

Average data for 10 years

Unawatuna December

6

sunny days

20

days with precipitation

13

cloudy days

6 sunny days; 20 days with precipitation; 13 cloudy days;

82

%

air humidity

2.7

m/s

WindS

167

mm of precipitation

(7% of annual average)

+28

°C

Water temperature

air humidity 82%; 167 millimeters of precipitation (7% of annual average); Wind southerly 2.7 Meters per second; Water temperature +28°

Weather graphs for December

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

SW

SW

S

S

S

S

S

SW

SW

SW

SW

SW

SW

SW

S

S

S

S

S

S

S

S

S

SW

S

S

S

S

S

S

S

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

Colombo
Hikkaduwa
Sri Jayawardenapura Kotte
Bentota
Galle
Tangalle
Pasikudah
Kalutara
Ahungalla

Cities with similar weather in December

Phuket
Pattaya
Bangkok
Goa
Male
Singapore
Zanzibar
Denpasar
Victoria

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

In December, the weather in Unawatuna is typically warm. Average daily high temperature in December is about 27 degrees above zero. On average, Unawatuna has 20 rainy, 6 sunny, and 5 partly cloudy days in December. The rains are usually heavy. December as well as March, April, May, and June is considered the most uncomfortable time to visit Unawatuna.

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