Chiang Mai weather in July
July in Chiang Mai: sweltering, soaked, with clean air — a good time to visit.
#8 of 12 months in Chiang Mai · #453 of 604 destinations to visit in July · comfort 62/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Chiang Mai climate normals — July
| Daytime high | 31°C / 88°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 24°C / 76°F | |
| Feels like (high) | 37°C / 99°F | |
| Rainfall | 156 mm / 6.2 in | ⛈ soaked |
| Rainy days | 21 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 23°C / 74°F | |
| Sunshine | 8.9 h/day | |
| Daylight | 13.1 h | |
| Wind | 9 km/h / 5 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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Chiang Mai in July — FAQ
- Is July a good time to visit Chiang Mai?
- July in Chiang Mai: sweltering, soaked, with clean air — a good time to visit. It ranks #8 of 12 months for Chiang Mai on SeasonMap's comfort score (62/100).
- What is the weather like in Chiang Mai in July?
- In July, Chiang Mai averages a daily high of 31.3°C and a low of 24.3°C, with about 156.4 mm of rain over roughly 20.8 rainy days.
- What is the air quality in Chiang Mai in July?
- Chiang Mai has a mean US Air Quality Index of about 41 in July.