Koh Chang Weather & Climate: Best Time to Visit

The temperature in Koh Chang remains steady throughout the year, providing a consistently very warm climate. Average maximum daytime temperatures range from a very warm 31°C (88°F) in April, the warmest time of the year, to a comfortable 29°C (84°F) during cooler months like September.

At night, you can expect temperatures ranging from 27°C (81°F) in April to around 25°C (77°F) during September.

Check out our detailed temperature page for more information.

Temperature ranges by month

Koh Chang has a relatively rainy climate with high precipitation levels, averaging 3404 mm (134 in) of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, July it receives heavy rainfall, averaging 623 mm (25 in) of precipitation, recorded across 23 rainy days. In contrast, the driest month December brings less rainfall, with 20 mm (0.8 in) over 3 rainy days. For more details, please visit our Koh Chang Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Koh Chang. While January receives considerable daily sunshine with up to 7.7 hours, September marks the darkest time of the year, where sunshine is scarce with only 1.8 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Koh Chang.

The city experiences its highest humidity in August, reaching 86%. In December, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year