10 day forecast Monthly forecast Weather map

City or area

Go to comparison

December weather forecast in Chilaw

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

29 November, sun

	754 mmHg		80%
	7.1 m/s		+29

29 November, Sunday. day, 28°; night, 26°; rain

30 November, mon

	754 mmHg		77%
	6.1 m/s		+29

30 November, Monday. day, 28°; night, 26°; rain

1 December, tue

	754 mmHg		76%
	6.1 m/s		+29

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

2 December, wed

	754 mmHg		75%
	7 m/s		+29

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

3 December, thu

	754 mmHg		75%
	7.1 m/s		+29

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

4 December, fri

	754 mmHg		76%
	7.4 m/s		+29

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

5 December, sat

	754 mmHg		76%
	7 m/s		+29

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

6 December, sun

	754 mmHg		76%
	8.1 m/s		+29

6 December, Sunday. day, 28°; night, 26°; clear

7 December, mon

	754 mmHg		77%
	7.5 m/s		+29

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

8 December, tue

	754 mmHg		76%
	6 m/s		+28

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

9 December, wed

	754 mmHg		75%
	5.8 m/s		+29

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

10 December, thu

	754 mmHg		76%
	5.6 m/s		+29

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

11 December, fri

	754 mmHg		75%
	6.4 m/s		+29

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

12 December, sat

	754 mmHg		75%
	7 m/s		+29

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

13 December, sun

	755 mmHg		75%
	6.8 m/s		+29

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

14 December, mon

	755 mmHg		76%
	6.4 m/s		+29

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

15 December, tue

	755 mmHg		74%
	7.6 m/s		+29

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

16 December, wed

	755 mmHg		73%
	8.5 m/s		+29

16 December, Wednesday. day, 29°; night, 25°; rain

17 December, thu

	755 mmHg		76%
	8.6 m/s		+29

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

18 December, fri

	755 mmHg		76%
	9.1 m/s		+29

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

19 December, sat

	755 mmHg		77%
	8.3 m/s		+29

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

20 December, sun

	755 mmHg		76%
	8.8 m/s		+29

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

21 December, mon

	755 mmHg		74%
	8.8 m/s		+28

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

22 December, tue

	755 mmHg		74%
	8.6 m/s		+28

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

23 December, wed

	755 mmHg		75%
	8.6 m/s		+28

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

24 December, thu

	755 mmHg		75%
	9 m/s		+28

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

25 December, fri

	755 mmHg		75%
	8.3 m/s		+28

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

26 December, sat

	755 mmHg		75%
	8.5 m/s		+28

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

27 December, sun

	754 mmHg		75%
	7.8 m/s		+28

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

28 December, mon

	754 mmHg		75%
	8.1 m/s		+28

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

29 December, tue

	754 mmHg		72%
	8.3 m/s		+28

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

30 December, wed

	755 mmHg		72%
	7.9 m/s		+28

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

31 December, thu

	755 mmHg		72%
	7.9 m/s		+28

31 December, Thursday. day, 28°; night, 25°; partly cloudy

1 January, fri

	755 mmHg		70%
	8.3 m/s		+28

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

2 January, sat

	755 mmHg		72%
	7.5 m/s		+28

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

Average data for 10 years

Chilaw December

5

sunny days

24

days with precipitation

2

cloudy days

5 sunny days; 24 days with precipitation; 2 cloudy days;

75

%

air humidity

5.9

m/s

WindNE

240

mm of precipitation

(7% of annual average)

+29

°C

Water temperature

air humidity 75%; 240 millimeters of precipitation (7% of annual average); Wind north-easterly 5.9 Meters per second; Water temperature +29°

Weather graphs for December

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

NE

N

N

N

NE

NE

N

NE

N

N

N

N

NE

NE

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

Santo Domingo
Punta Cana
Phan Thiet
Cancun
Boca Chica
Bali
Boracay
Kingston
Djibouti

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

In December, the weather in Chilaw is typically hot. Average daily high temperature in December is about 28 degrees above zero. On average, Chilaw has 24 rainy, 5 sunny, and 2 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 Chilaw.

Links

Help Terms of use Contact us

For partners

Advertisement Yandex.Weather API

Weather forecasts

Hourly forecast Detailed 10 day forecast Monthly forecast Weather map Magnetic storms

Download app

English

English
Русский

Source data: Yandex.Traffic, Roshydromet FSBI "CAO", NOAA, © OpenStreetMap

© 2017–2025 YANDEX LLC