Weather Forecast in Koh Chang

Wondering about the weather in Koh Chang? As a tropical island, forecasts often show rain. However, these are typically brief showers followed by sunshine. For divers, marine conditions matter most. Below, you’ll find reliable tide tables and weather tools from Windguru to help plan your dives.

Wind Forecast

Stay informed about wind conditions on Koh Chang. Use the Windguru widget below for real-time updates.

Wave Forecast

Plan your dives with confidence using the wave forecast. Check wave heights, swell directions, and more below.

Important: For safety reasons, we may cancel dives if wave heights exceed 0.8 meters. Safety is always our top priority, and we will inform you in advance if conditions are unsuitable. Our dive sites include the HTMS Chang (wreck diving), Koh Rang National Park, and local reefs such as Hin Raap and Hin Luk Bat.

Water Temperature

The water temperature in Koh Chang is consistently warm year-round, ranging from 28°C (82°F) to 33°C (91°F). Perfect for diving with a light wetsuit or rash guard!

Seasons

High season runs from October to April, offering calm seas and excellent weather. Low season (May to September) sees fewer visitors and lower accommodation costs. Despite the occasional rain, dive conditions can still be fantastic—especially in June!

We operate all year-round, selecting the best dive sites using forecasts from the Thai Meteorological Institute. Contact us to check current conditions.

Book Your Diving Adventure

Explore Koh Chang’s underwater wonders with Chang Diving Center. Choose from our fun dives or dive courses today!