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December weather forecast in Trincomalee

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

	754 mmHg		86%
	4.1 m/s		+28

30 November, Sunday. day, 28°; night, 24°; rain

1 December, mon

	754 mmHg		86%
	4 m/s		+28

1 December, Monday. day, 28°; night, 23°; rain

2 December, tue

	754 mmHg		86%
	4.1 m/s		+28

2 December, Tuesday. day, 28°; night, 24°; rain

3 December, wed

	754 mmHg		87%
	4.1 m/s		+28

3 December, Wednesday. day, 28°; night, 24°; rain

4 December, thu

	754 mmHg		87%
	4.19 m/s		+28

4 December, Thursday. day, 28°; night, 24°; rain

5 December, fri

	754 mmHg		87%
	4.3 m/s		+28

5 December, Friday. day, 28°; night, 24°; rain

6 December, sat

	754 mmHg		85%
	4.4 m/s		+28

6 December, Saturday. day, 28°; night, 24°; rain

7 December, sun

	754 mmHg		85%
	4.4 m/s		+28

7 December, Sunday. day, 28°; night, 24°; rain

8 December, mon

	754 mmHg		85%
	4.5 m/s		+28

8 December, Monday. day, 28°; night, 23°; overcast

9 December, tue

	754 mmHg		85%
	4.4 m/s		+28

9 December, Tuesday. day, 28°; night, 24°; overcast

10 December, wed

	754 mmHg		85%
	4.19 m/s		+28

10 December, Wednesday. day, 28°; night, 24°; rain

11 December, thu

	754 mmHg		85%
	4.1 m/s		+28

11 December, Thursday. day, 28°; night, 24°; rain

12 December, fri

	754 mmHg		86%
	4 m/s		+28

12 December, Friday. day, 28°; night, 24°; rain

13 December, sat

	754 mmHg		86%
	4.1 m/s		+28

13 December, Saturday. day, 28°; night, 24°; rain

14 December, sun

	754 mmHg		86%
	4.1 m/s		+28

14 December, Sunday. day, 28°; night, 24°; rain

15 December, mon

	754 mmHg		86%
	4.5 m/s		+28

15 December, Monday. day, 28°; night, 24°; rain

16 December, tue

	755 mmHg		85%
	4.6 m/s		+28

16 December, Tuesday. day, 28°; night, 24°; rain

17 December, wed

	755 mmHg		87%
	4.6 m/s		+28

17 December, Wednesday. day, 28°; night, 24°; rain

18 December, thu

	755 mmHg		87%
	4.69 m/s		+28

18 December, Thursday. day, 27°; night, 24°; rain

19 December, fri

	755 mmHg		87%
	4.69 m/s		+28

19 December, Friday. day, 27°; night, 24°; rain

20 December, sat

	755 mmHg		86%
	4.6 m/s		+28

20 December, Saturday. day, 28°; night, 23°; rain

21 December, sun

	755 mmHg		86%
	4.5 m/s		+28

21 December, Sunday. day, 28°; night, 23°; rain

22 December, mon

	755 mmHg		85%
	4.5 m/s		+28

22 December, Monday. day, 27°; night, 23°; rain

23 December, tue

	755 mmHg		85%
	4.4 m/s		+27

23 December, Tuesday. day, 28°; night, 23°; rain

24 December, wed

	755 mmHg		85%
	4.3 m/s		+28

24 December, Wednesday. day, 27°; night, 23°; rain

25 December, thu

	755 mmHg		83%
	4.5 m/s		+27

25 December, Thursday. day, 28°; night, 23°; clear

26 December, fri

	755 mmHg		84%
	4.6 m/s		+28

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

27 December, sat

	755 mmHg		85%
	4.6 m/s		+28

27 December, Saturday. day, 28°; night, 23°; partly cloudy

28 December, sun

	755 mmHg		84%
	4.5 m/s		+28

28 December, Sunday. day, 28°; night, 23°; partly cloudy

29 December, mon

	755 mmHg		83%
	4.6 m/s		+27

29 December, Monday. day, 28°; night, 23°; clear

30 December, tue

	755 mmHg		84%
	4.5 m/s		+27

30 December, Tuesday. day, 28°; night, 23°; clear

31 December, wed

	755 mmHg		84%
	4.4 m/s		+27

31 December, Wednesday. day, 28°; night, 23°; clear

1 January, thu

	755 mmHg		83%
	4.3 m/s		+27

1 January, Thursday. day, 28°; night, 23°; rain

2 January, fri

	755 mmHg		83%
	4.3 m/s		+27

2 January, Friday. day, 28°; night, 23°; rain

3 January, sat

	755 mmHg		84%
	4.5 m/s		+27

3 January, Saturday. day, 27°; night, 23°; rain

Average data for 10 years

Trincomalee December

4

sunny days

22

days with precipitation

14

cloudy days

4 sunny days; 22 days with precipitation; 14 cloudy days;

85

%

air humidity

3.1

m/s

WindE

249

mm of precipitation

(18% of annual average)

+28

°C

Water temperature

air humidity 85%; 249 millimeters of precipitation (18% of annual average); Wind easterly 3.1 Meters per second; Water temperature +28°

Weather graphs for December

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

SE

SE

E

E

E

E

E

SE

SE

SE

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

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

Unawatuna
Colombo
Hikkaduwa
Sri Jayawardenapura Kotte
Bentota
Galle
Tangalle
Pasikudah
Kalutara

Cities with similar weather in December

Phuket
Phan Thiet
Samui
Phú Quốc
Krabi
Mumbai
Port Louis
Kingston
Djibouti

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

In December, the weather in Trincomalee is typically hot. Average daily high temperature in December is about 28 degrees above zero. On average, Trincomalee has 22 rainy, 4 sunny, 3 partly cloudy, and 2 cloudy days in December. The rains are usually heavy. December as well as April, May, August, and September is considered the most uncomfortable time to visit Trincomalee.

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