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December weather forecast in Koh Lanta Yai

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

	749 mmHg		75%
	6.9 m/s		+29

29 November, Sunday. day, 29°; night, 27°; rain

30 November, mon

	749 mmHg		75%
	6.4 m/s		+30

30 November, Monday. day, 29°; night, 27°; rain

1 December, tue

	749 mmHg		77%
	6.9 m/s		+29

1 December, Tuesday. day, 28°; night, 27°; rain

2 December, wed

	749 mmHg		76%
	6.5 m/s		+29

2 December, Wednesday. day, 28°; night, 27°; rain

3 December, thu

	749 mmHg		76%
	6 m/s		+29

3 December, Thursday. day, 28°; night, 27°; rain

4 December, fri

	749 mmHg		75%
	6.5 m/s		+29

4 December, Friday. day, 28°; night, 27°; rain

5 December, sat

	749 mmHg		75%
	6.4 m/s		+29

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

6 December, sun

	749 mmHg		74%
	6.1 m/s		+30

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

7 December, mon

	749 mmHg		75%
	6.5 m/s		+29

7 December, Monday. day, 29°; night, 27°; rain

8 December, tue

	750 mmHg		74%
	6.1 m/s		+29

8 December, Tuesday. day, 29°; night, 27°; partly cloudy

9 December, wed

	749 mmHg		73%
	6.1 m/s		+29

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

10 December, thu

	749 mmHg		74%
	6.1 m/s		+29

10 December, Thursday. day, 28°; night, 27°; rain

11 December, fri

	749 mmHg		73%
	5.5 m/s		+29

11 December, Friday. day, 29°; night, 27°; rain

12 December, sat

	749 mmHg		73%
	5.5 m/s		+29

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

13 December, sun

	750 mmHg		73%
	5.9 m/s		+29

13 December, Sunday. day, 29°; night, 27°; rain

14 December, mon

	750 mmHg		74%
	5.3 m/s		+29

14 December, Monday. day, 29°; night, 27°; rain

15 December, tue

	750 mmHg		75%
	5.5 m/s		+29

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

16 December, wed

	750 mmHg		75%
	6.6 m/s		+29

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

17 December, thu

	750 mmHg		75%
	7 m/s		+29

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

18 December, fri

	750 mmHg		72%
	7 m/s		+29

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

19 December, sat

	750 mmHg		74%
	6.6 m/s		+29

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

20 December, sun

	750 mmHg		74%
	6.9 m/s		+29

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

21 December, mon

	749 mmHg		74%
	7 m/s		+29

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

22 December, tue

	749 mmHg		75%
	6.8 m/s		+29

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

23 December, wed

	749 mmHg		74%
	6.5 m/s		+29

23 December, Wednesday. day, 29°; night, 26°; clear

24 December, thu

	749 mmHg		72%
	7 m/s		+29

24 December, Thursday. day, 29°; night, 26°; clear

25 December, fri

	749 mmHg		72%
	7.8 m/s		+29

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

26 December, sat

	749 mmHg		73%
	6.5 m/s		+29

26 December, Saturday. day, 29°; night, 26°; rain

27 December, sun

	750 mmHg		73%
	6.9 m/s		+29

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

28 December, mon

	750 mmHg		73%
	6 m/s		+29

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

29 December, tue

	749 mmHg		70%
	7.3 m/s		+29

29 December, Tuesday. day, 29°; night, 26°; rain

30 December, wed

	749 mmHg		74%
	7.1 m/s		+29

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

31 December, thu

	749 mmHg		74%
	7.1 m/s		+29

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

1 January, fri

	749 mmHg		75%
	8.1 m/s		+29

1 January, Friday. day, 28°; night, 26°; rain

2 January, sat

	750 mmHg		75%
	7.5 m/s		+29

2 January, Saturday. day, 28°; night, 26°; rain

Average data for 10 years

Koh Lanta Yai December

2

sunny days

23

days with precipitation

6

cloudy days

2 sunny days; 23 days with precipitation; 6 cloudy days;

74

%

air humidity

5

m/s

WindNE

125

mm of precipitation

(6% of annual average)

+29

°C

Water temperature

air humidity 74%; 125 millimeters of precipitation (6% of annual average); Wind north-easterly 5 Meters per second; Water temperature +29°

Weather graphs for December

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

NE

NE

NE

NE

NE

NE

NE

NE

NE

NE

NE

NE

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

Phuket
Samui
Khao Lak
Krabi
Langkawi
George Town
Phang Nga
Chalong
Ipoh

Cities with similar weather in December

Pattaya
Bangkok
Male
Singapore
Zanzibar
Colombo
Phú Quốc
Victoria
Ko Chang

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

In December, the weather in Koh Lanta Yai is typically hot. Average daily high temperature in December is about 29 degrees above zero. On average, Koh Lanta Yai has 23 rainy, 5 cloudy, 2 sunny, and 1 partly cloudy day in December. The rains are usually heavy. December as well as April, May, June, and July is considered the most uncomfortable time to visit Koh Lanta Yai.

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