Monthly 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

How many days does it rain in Koh Chang?

In Koh Chang, during the entire year, the rain falls for 170 days and collects up to 3442mm (135.5") of precipitation.

What month is the sea coldest in Koh Chang?

January is the month with the coldest seawater, with an average sea temperature of 27.7°C (81.9°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 warmest month in Koh Chang?

The warmest month in Koh Chang is April, with an average high-temperature of 32°C (89.6°F) and an average low-temperature of 23°C (73.4°F).

When is the sea warmest in Koh Chang?

May is the month with the warmest seawater, with an average sea temperature of 30.3°C (86.5°F). The water temperature above 30°C (86°F) is arguably regarded as unpleasant. The primary purpose of entering the water - cooling down from sunshine and high temperatures - is lost.

What are the coldest months in Koh Chang?

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

What is the wettest month in Koh Chang?

August is the month with the most rainfall in Koh Chang, Thailand. Rain falls for 25 days and accumulates 687mm (27") of precipitation.

What is the driest month in Koh Chang?

The month with the least rainfall in Koh Chang is December when the rain falls for 3 days and typically collects 26mm (1") of precipitation.
Average temperature - Koh Chang, Thailand
Average rainfall - Koh Chang, Thailand
Average rainfall days - Koh Chang, Thailand

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 - Koh Chang, Thailand

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 / Average sunshine - Koh Chang, Thailand

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

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 - Koh Chang, Thailand

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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