Ko Si Chang Weather & Climate: Best Time to Visit

In Ko Si Chang temperatures are generally consistent throughout the year. On average, daytime temperatures range from a very warm 33°C (91°F) in April to a very warm 31°C (88°F) in January.

Nighttime temperatures range from 28°C (82°F) in April to 24°C (75°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Ko Si Chang experiences significant rainfall throughout the year, averaging 1200 mm (47 in) of precipitation annually. The seasons in Ko Si Chang bring significant changes in precipitation. The wettest month, September, receives heavy rainfall, with an average of 231 mm (9.1 in) of precipitation. This rainfall is distributed across 18 rainy days.

In contrast, the driest month, December, experiences much less rainfall, totaling 14 mm (0.6 in) over a single rainy day. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Ko Si Chang Precipitation page.

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

The average number of days each month with precipitation

In Ko Si Chang, summer days are longer and more sunny, with daily sunshine hours peaking at 8.3 hours in March. As the darker season arrives, the brightness of the sun becomes less. September sees a soft sun for only 3.7 hours per average 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 Ko Si Chang.

The city experiences its highest humidity in October, reaching 82%. In December, the humidity drops to its lowest level at 70%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year