Ko Chang weather in May
May in Ko Chang: hot, soaked, with clean air — fine if you can take 30 rainy days.
#7 of 12 months in Ko Chang · #718 of 897 destinations to visit in May · comfort 70/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ko Chang in May
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Ko Chang climate normals — May
| Daytime high | 30°C / 86°F | 🥵 hot |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Rainfall | 311 mm / 12.2 in | ⛈ soaked |
| Rainy days | 30 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 25°C / 77°F | |
| Sunshine | 9.4 h/day | |
| Daylight | 12.7 h | |
| Wind | 11 km/h / 7 mph | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Ko Chang in May — FAQ
- Is May a good time to visit Ko Chang?
- May in Ko Chang: hot, soaked, with clean air — fine if you can take 30 rainy days. It ranks #7 of 12 months for Ko Chang on SeasonMap's comfort score (70/100).
- What is the weather like in Ko Chang in May?
- In May, Ko Chang averages a daily high of 30°C and a low of 26.9°C, with about 310.7 mm of rain over roughly 29.8 rainy days.
- What is the air quality in Ko Chang in May?
- Ko Chang has a mean US Air Quality Index of about 42 in May.