Siem Reap weather in June
June in Siem Reap: sweltering, rainy, with clean air — a good time to visit.
#6 of 12 months in Siem Reap · #497 of 604 destinations to visit in June · comfort 63/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Siem Reap climate normals — June
| Daytime high | 33°C / 91°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 39°C / 102°F | |
| Rainfall | 92 mm / 3.6 in | 🌧 rainy |
| Rainy days | 20 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 12.9 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 33 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Siem Reap in June — FAQ
- Is June a good time to visit Siem Reap?
- June in Siem Reap: sweltering, rainy, with clean air — a good time to visit. It ranks #6 of 12 months for Siem Reap on SeasonMap's comfort score (63/100).
- What is the weather like in Siem Reap in June?
- In June, Siem Reap averages a daily high of 32.6°C and a low of 26.1°C, with about 92.3 mm of rain over roughly 19.6 rainy days.
- What is the air quality in Siem Reap in June?
- Siem Reap has a mean US Air Quality Index of about 33 in June.