Koh Chang, ThailandQuick decision
When to visit Koh Chang?
🌞 Best time overall
December
🌡️ Optimal temperature
22°C–28°C in December
🌧 Least rain
16% rainy days in December
🌧 Wettest month
September (96%)
📅 Best score
8.8/10
Monthly climate data
Koh Chang weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 22°C | 28°C | 29% | 1.5 | 11.0h | 8.3/10 |
| 🌤️ February | 22°C | 28°C | 34% | 1.6 | 11.0h | 8.2/10 |
| 🌤️ March | 23°C | 28°C | 54% | 2.7 | 11.1h | 7.6/10 |
| 🌤️ April | 24°C | 29°C | 59% | 4.0 | 11.7h | 7.4/10 |
| 🌦️ May | 24°C | 28°C | 88% | 10.0 | 10.0h | 7.1/10 |
| 🌧️ June | 23°C | 27°C | 93% | 14.8 | 9.5h | 6.9/10 |
| 🌧️ July | 22°C | 26°C | 96% | 19.8 | 8.1h | 6.2/10 |
| 🌧️ August | 22°C | 26°C | 98% | 15.9 | 9.2h | 6.4/10 |
| 🌧️ September | 22°C | 26°C | 96% | 18.8 | 7.9h | 6.1/10 |
| 🌦️ October | 22°C | 27°C | 81% | 10.3 | 9.4h | 7.1/10 |
| 🌤️ November | 22°C | 28°C | 45% | 3.3 | 10.7h | 7.8/10 |
| ☀️ December | 22°C | 28°C | 16% | 0.8 | 10.9h | 8.8/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
🌴 Tropical destination — heavy rain months benefit from an algorithmic adjustment: tropical showers are intense but brief and usually don't ruin a trip.
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 28°C, 67% rainy days, 10.9h sunshine/day. Score: 7.4/10.
☀️ Summer (Jun–Aug) — Acceptable
Average 26°C, 96% rainy days, 8.9h sunshine/day. Score: 6.5/10.
🍂 Autumn (Sep–Nov) — Good time
Average 27°C, 74% rainy days, 9.3h sunshine/day. Score: 7.0/10.
❄️ Winter (Dec–Feb) — Good time
Average 28°C, 26% rainy days, 11.0h sunshine/day. Score: 8.4/10.
Accommodation
Find a place to stay in Koh Chang
Check availability during the recommended period
Tip : May, June offer a good weather/price balance — decent score with fewer crowds.
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Activities and tours in Koh Chang
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
December is ideal with 16% rainy days and 28°C.
September is the wettest month with 96% rainy days.
Yes, December is the best month with an average of 28°C.
In winter, the average score is 8.4/10. Acceptable conditions for cultural visits.
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