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December weather forecast in Negombo

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

	753 mmHg		80%
	6.6 m/s		+29

30 November, Sunday. day, 27°; night, 26°; rain

1 December, mon

	753 mmHg		77%
	5.3 m/s		+29

1 December, Monday. day, 28°; night, 26°; rain

2 December, tue

	753 mmHg		76%
	5.3 m/s		+29

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

3 December, wed

	753 mmHg		75%
	6.1 m/s		+29

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

4 December, thu

	753 mmHg		75%
	6.3 m/s		+29

4 December, Thursday. day, 28°; night, 26°; rain

5 December, fri

	753 mmHg		76%
	6.6 m/s		+29

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

6 December, sat

	753 mmHg		75%
	6.4 m/s		+29

6 December, Saturday. day, 28°; night, 26°; rain

7 December, sun

	753 mmHg		76%
	7.5 m/s		+28

7 December, Sunday. day, 28°; night, 26°; rain

8 December, mon

	753 mmHg		77%
	6.5 m/s		+29

8 December, Monday. day, 28°; night, 26°; rain

9 December, tue

	753 mmHg		76%
	5 m/s		+28

9 December, Tuesday. day, 28°; night, 26°; rain

10 December, wed

	753 mmHg		76%
	4.4 m/s		+29

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

11 December, thu

	753 mmHg		76%
	5 m/s		+29

11 December, Thursday. day, 28°; night, 26°; clear

12 December, fri

	753 mmHg		75%
	5.6 m/s		+29

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

13 December, sat

	753 mmHg		75%
	6 m/s		+29

13 December, Saturday. day, 28°; night, 26°; rain

14 December, sun

	753 mmHg		75%
	6 m/s		+29

14 December, Sunday. day, 28°; night, 26°; rain

15 December, mon

	754 mmHg		75%
	5.9 m/s		+29

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

16 December, tue

	754 mmHg		73%
	6.9 m/s		+29

16 December, Tuesday. day, 28°; night, 26°; rain

17 December, wed

	754 mmHg		72%
	7.9 m/s		+29

17 December, Wednesday. day, 29°; night, 26°; rain

18 December, thu

	754 mmHg		75%
	8.1 m/s		+29

18 December, Thursday. day, 28°; night, 25°; rain

19 December, fri

	754 mmHg		75%
	8.1 m/s		+29

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

20 December, sat

	754 mmHg		75%
	7.1 m/s		+29

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

21 December, sun

	753 mmHg		75%
	7.9 m/s		+29

21 December, Sunday. day, 29°; night, 26°; rain

22 December, mon

	753 mmHg		73%
	8.5 m/s		+28

22 December, Monday. day, 28°; night, 25°; clear

23 December, tue

	754 mmHg		73%
	8.3 m/s		+28

23 December, Tuesday. day, 28°; night, 25°; rain

24 December, wed

	754 mmHg		74%
	8.5 m/s		+28

24 December, Wednesday. day, 28°; night, 25°; rain

25 December, thu

	753 mmHg		74%
	8.6 m/s		+28

25 December, Thursday. day, 28°; night, 25°; rain

26 December, fri

	753 mmHg		74%
	7.9 m/s		+28

26 December, Friday. day, 28°; night, 25°; rain

27 December, sat

	753 mmHg		74%
	8.1 m/s		+29

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

28 December, sun

	753 mmHg		74%
	6.9 m/s		+28

28 December, Sunday. day, 28°; night, 25°; rain

29 December, mon

	753 mmHg		74%
	7 m/s		+28

29 December, Monday. day, 28°; night, 25°; rain

30 December, tue

	753 mmHg		70%
	7 m/s		+28

30 December, Tuesday. day, 28°; night, 25°; partly cloudy

31 December, wed

	753 mmHg		69%
	7.4 m/s		+28

31 December, Wednesday. day, 28°; night, 25°; clear

1 January, thu

	753 mmHg		69%
	7.6 m/s		+28

1 January, Thursday. day, 29°; night, 25°; clear

2 January, fri

	754 mmHg		69%
	7 m/s		+28

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

3 January, sat

	754 mmHg		69%
	8.1 m/s		+28

3 January, Saturday. day, 28°; night, 25°; partly cloudy

Average data for 10 years

Negombo December

4

sunny days

25

days with precipitation

2

cloudy days

4 sunny days; 25 days with precipitation; 2 cloudy days;

75

%

air humidity

5.4

m/s

WindNE

236

mm of precipitation

(6% of annual average)

+29

°C

Water temperature

air humidity 75%; 236 millimeters of precipitation (6% of annual average); Wind north-easterly 5.4 Meters per second; Water temperature +29°

Weather graphs for December

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

NE

NE

N

N

N

N

NE

N

N

NW

N

N

N

N

NE

NE

NE

NE

NE

NE

NE

NE

NE

NE

NE

NE

NE

NE

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
Hikkaduwa
Sri Jayawardenapura Kotte
Colombo
Bentota
Galle
Kalutara
Tangalle
Ahungalla

Cities with similar weather in December

Phuket
Phan Thiet
Samui
Phú Quốc
Krabi
Boca Chica
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 Negombo is typically hot. Average daily high temperature in December is about 28 degrees above zero. On average, Negombo has 26 rainy, 4 sunny, and 1 partly cloudy day in December. The rains are usually heavy. December as well as March, April, May, and June is considered the most uncomfortable time to visit Negombo.

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