Ko Samui weather in November
November in Ko Samui: hot, soaked, with clean air — a good time to visit.
#12 of 12 months in Ko Samui · #452 of 604 destinations to visit in November · comfort 62/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Ko Samui climate normals — November
| Daytime high | 28°C / 83°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 32°C / 90°F | |
| Rainfall | 345 mm / 13.6 in | ⛈ soaked |
| Rainy days | 24 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 8.3 h/day | |
| Daylight | 11.7 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Ko Samui in November — FAQ
- Is November a good time to visit Ko Samui?
- November in Ko Samui: hot, soaked, with clean air — a good time to visit. It ranks #12 of 12 months for Ko Samui on SeasonMap's comfort score (62/100).
- What is the weather like in Ko Samui in November?
- In November, Ko Samui averages a daily high of 28.1°C and a low of 26°C, with about 344.5 mm of rain over roughly 23.8 rainy days.
- What is the air quality in Ko Samui in November?
- Ko Samui has a mean US Air Quality Index of about 41 in November.