Siem Reap weather in July
July in Siem Reap: sweltering, soaked, with clean air — a fair time to visit.
#10 of 12 months in Siem Reap · #514 of 604 destinations to visit in July · comfort 56/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Siem Reap climate normals — July
| Daytime high | 32°C / 89°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Feels like (high) | 37°C / 99°F | |
| Rainfall | 169 mm / 6.6 in | ⛈ soaked |
| Rainy days | 23 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 9.3 h/day | |
| Daylight | 12.8 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 30 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Siem Reap in July — FAQ
- Is July a good time to visit Siem Reap?
- July in Siem Reap: sweltering, soaked, with clean air — a fair time to visit. It ranks #10 of 12 months for Siem Reap on SeasonMap's comfort score (56/100).
- What is the weather like in Siem Reap in July?
- In July, Siem Reap averages a daily high of 31.7°C and a low of 25.6°C, with about 168.9 mm of rain over roughly 23.2 rainy days.
- What is the air quality in Siem Reap in July?
- Siem Reap has a mean US Air Quality Index of about 30 in July.