December weather forecast and climate
Koh Chang, Thailand

Palm trees and few buildings along the white sandy beach in Koh Chang, Thailand, with a side view of the clear water, and a background view of the mountains
Palm trees and few buildings along the white sandy beach in Koh Chang, Thailand, with a side view of the clear water, and a background view of the mountains
December, the first month of the winter, in Koh Chang, is also a hot month, with average temperature fluctuating between 20°C (68°F) and 30°C (86°F).

Temperature

June through September and December, with an average high-temperature of 30°C (86°F), are the coldest months.

Rainfall

The month with the least rainfall is December when the rain falls for 3 days and typically collects 26mm (1") of precipitation.

Sea temperature

In December, the average sea temperature in Koh Chang, Thailand, is 28.6°C (83.5°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

The month with the shortest days is December, with an average of 11.4h of daylight.

Sunshine

January and December, with an average of 9h of sunshine, are months with the most sunshine in Koh Chang.

UV index

Months with the lowest UV index are January, November and December, with an average maximum UV index of 10. A UV Index estimate of 8 to 10 represents a very high health hazard from unsafe exposure to the UV radiation for the average person.
In December, the average maximum UV index of 10 translate into the following recommendations:
Take special precautions, as unprotected skin can be damaged and can burn quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What are the coldest months in Koh Chang?

June through September and December, with an average high-temperature of 30°C (86°F), are the coldest months.

What is the temperature in December in Koh Chang?

In Koh Chang, Thailand, in December, the average high-temperature is 30°C (86°F), and the average low-temperature is 20°C (68°F).

How much does it rain in Koh Chang in December?

In Koh Chang, in December, during 3 rainfall days, 26mm (1") of precipitation is typically accumulated.

What is the driest month in Koh Chang?

December is the month with the least rainfall. Rain falls for 3 days and accumulates 26mm (1") of precipitation.

What is the sea water temperature in December in Koh Chang?

In Koh Chang, the average seawater temperature in December is 28.6°C (83.5°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the month with the shortest days in Koh Chang?

With an average of 11.4h of daylight, December has the shortest days of the year in Koh Chang.

How many hours of daylight does Koh Chang have in December?

In December, the average length of the day in Koh Chang, Thailand, is 11.4h.

What are the months with the most sunshine in Koh Chang?

January and December, with an average of 9h of sunshine, are months with the most sunshine in Koh Chang, Thailand.

How long on average sun shines in December in Koh Chang?

In Koh Chang, Thailand, the average sunshine in December is 9h.

When is the lowest UV index in Koh Chang?

Months with the lowest UV index in Koh Chang are January, November and December, with an average maximum UV index of 10.

How high is the UV index in December in Koh Chang?

In Koh Chang, the average daily maximum UV index in December is 10. A UV Index reading of 8 to 10 represents a very high health threat from the exposure to the Sun's UV rays.
Average temperature in December - Koh Chang, Thailand
  • Average high temperature in December: 30°C

The warmest month (with the highest average high temperature) is April (32°C).
Months with the lowest average high temperature are June, July, August, September and December (30°C).

  • Average low temperature in December: 20°C

The month with the highest average low temperature is May (24°C).
Coldest months (with the lowest average low temperature) are January and December (20°C).

Average rainfall in December - Koh Chang, Thailand
  • Average rainfall in December: 26mm

The wettest month (with the highest rainfall) is August (687mm).
The driest month (with the lowest rainfall) is December (26mm).

Average rainfall days in December - Koh Chang, Thailand
  • Average rainfall days in December: 3 days

The month with the highest number of rainy days is August (25 days).
Months with the lowest number of rainy days are January and December (3 days).

Average sea temperature in December - Koh Chang, Thailand
  • Average sea temperature in December: 28.6°C

The best month for swimming (with the highest average sea temperature) is May (30.3°C).
The coldest month (with the lowest average sea temperature) is January (27.7°C).

Average daylight in December / Average sunshine in December - Koh Chang, Thailand
  • Average daylight in December: 11.4h

Months with the longest days are June and July (Average daylight: 12.8h).
The month with shortest days is December (Average daylight: 11.4h).

  • Average sunshine in December: 9h

Months with most sunshine are January and December (Average sunshine: 9h).
Months with least sunshine are June, July, August and September (Average sunshine: 5).

Average UV index in December - Koh Chang, Thailand
  • Average UV index in December: 10

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
Months with the lowest UV index are January, November and December (UV index 10).

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