Dry and blue, hot and still, or green and dramatic. Koh Chang has three moods a year, and each one has its fans. Here is how to pick yours.
The short answer: for the most sunshine and the calmest sea, come between November and early March. But that is not the whole story. Koh Chang is one of the wettest parts of Thailand, and the rainy months bring their own rewards: deep green jungle, roaring waterfalls, quiet beaches and the lowest rates of the year.
Right now on Lonely Beach
Air around 30°C, sea around 29°C, sunset at around 18:00. Updated from Open-Meteo each time you visit.
The three seasons
Cool and dry: November to February
The classic beach season. Blue skies, lower humidity, calmer seas on the west coast and the best visibility for snorkelling at Koh Rang. It is also the busiest time, especially around Christmas, New Year and Chinese New Year, so book early.
Hot: March to May
The heat builds and the air goes still. Mornings are glorious, afternoons are made for the pool and the hammock, and the sea is bath-warm. Waterfalls run low by March and April, and the first storms can arrive in May.
Green season: roughly June to October
The monsoon arrives. Rain usually comes in heavy bursts with sunshine between, though some days are grey from start to finish. The sea on the west coast gets rougher and some boat trips are cancelled, but the jungle is at its most beautiful, the waterfalls are full, and the island is peaceful.

Month by month
| Month | Weather | Sea | Crowds |
|---|---|---|---|
| November | Rain easing, fresh and green | Calming | Building |
| December to January | Dry, sunny, breezy | Calm and clear | Busiest |
| February | Dry, sunny, warming | Calm and clear | Busy |
| March to April | Hot and mostly dry | Warm and calm | Steady |
| May | Hot, first storms | Changing | Quiet |
| June to September | Rainy, lush | Often rough on the west coast | Quietest |
| October | Rain gradually easing | Settling | Quiet |
What it costs at Paradise Cottage
Our rates follow the seasons: high season runs from October to May, and the green season from June to September. The prices below are estimates. The actual price depends on your dates and how busy we are, so message us on WhatsApp for the actual price.
| Bungalow | High season (Oct to May) | Green season (Jun to Sep) |
|---|---|---|
| Front Sea View, A/C | ฿1,500 to ฿2,500 | ฿800 to ฿1,200 |
| Garden Bungalow, fan | ฿1,000 to ฿1,800 | ฿500 to ฿900 |
Check your dates to see a rough estimate for your exact stay.
What to pack
- Any time. Reef-safe sunscreen, a hat, light cotton clothes, sandals with grip and insect repellent.
- November to April. A snorkel mask if you have one, a rash vest and sunglasses.
- June to October. A light rain jacket, a dry bag for your phone, quick-dry clothes and a good book for the downpours.
Our honest verdict
Come in the high season for beach days and boat trips. Come in the green season for the jungle, the rain, the peace and the prices. Either way, the sun still sets over the sea most evenings, the pool is always there, and the hammock does not care what month it is.
Quick answers
What is the best month to visit Koh Chang?
December to February usually brings the driest, sunniest weather and the calmest sea. November and early March are also excellent and often quieter.
When is the rainy season on Koh Chang?
Roughly May or June to October. Koh Chang is one of the wettest areas of Thailand, with heavy bursts of rain, rougher seas on the west coast and full waterfalls.
Is it worth visiting Koh Chang in the rainy season?
Yes, if you like quiet, green landscapes and lower prices. Expect some rainy days and cancelled boat trips, but also full waterfalls, empty beaches and the lowest room rates of the year.
When is high season at Paradise Cottage?
High season rates apply from October to May and green season rates from June to September. As an estimate, a Front Sea View bungalow with air conditioning is ฿1,500 to ฿2,500 a night in high season and ฿800 to ฿1,200 in green season. The actual price depends on your dates and how busy the resort is, so message the team on WhatsApp to confirm.













