Thailand's third-largest island sits near the Cambodian border in the Gulf of Thailand, part of the Mu Ko Chang National Park. Dense jungle covers 70% of the mountainous island, which peaks at 744m. Unlike the more developed southern islands, Koh Chang retains a wild, untamed character with waterfalls cascading through rainforest to quiet beaches.
Nights sit around 26°C and afternoons around 30°C.
Koh Chang barely changes season: afternoons sit around 31°C and nights around 26°C most of the year.
There is a clear wet season from April – October, peaking in July with around 584 mm. The dry months run from December.
Wind is rarely an issue; most months sit between calm and a light breeze. Air quality is worth watching: February averages an AQI of 68, while October clears to 36.
Daylight is steady all year, around 12.0 hours a day.
For what you're after, the best months in Koh Chang are November – March. Expect fast internet (147 Mbps) and a low cost of living (about €700 a month).
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