Chennai weather in August
August in Chennai: sweltering, rainy — a good time to visit.
#6 of 12 months in Chennai · #478 of 604 destinations to visit in August · comfort 62/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Chennai climate normals — August
| Daytime high | 33°C / 91°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 38°C / 100°F | |
| Rainfall | 98 mm / 3.9 in | 🌧 rainy |
| Rainy days | 18 days | |
| Humidity | 71% | 💧 humid |
| Dew point | 23°C / 74°F | |
| Sunshine | 8.7 h/day | |
| Daylight | 12.5 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 69 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Chennai in August — FAQ
- Is August a good time to visit Chennai?
- August in Chennai: sweltering, rainy — a good time to visit. It ranks #6 of 12 months for Chennai on SeasonMap's comfort score (62/100).
- What is the weather like in Chennai in August?
- In August, Chennai averages a daily high of 32.9°C and a low of 26.3°C, with about 98 mm of rain over roughly 17.6 rainy days.
- What is the air quality in Chennai in August?
- Chennai has a mean US Air Quality Index of about 69 in August.