Bengaluru weather in September
September in Bengaluru: warm, rainy, with clean air — a great time to visit.
#8 of 12 months in Bengaluru · #412 of 604 destinations to visit in September · comfort 71/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Bengaluru climate normals — September
| Daytime high | 26°C / 80°F | 🌤 warm |
|---|---|---|
| Nighttime low | 19°C / 67°F | |
| Feels like (high) | 28°C / 82°F | |
| Rainfall | 123 mm / 4.9 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 19°C / 65°F | |
| Sunshine | 8.2 h/day | |
| Daylight | 12.2 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Bengaluru in September — FAQ
- Is September a good time to visit Bengaluru?
- September in Bengaluru: warm, rainy, with clean air — a great time to visit. It ranks #8 of 12 months for Bengaluru on SeasonMap's comfort score (71/100).
- What is the weather like in Bengaluru in September?
- In September, Bengaluru averages a daily high of 26.4°C and a low of 19.4°C, with about 123.4 mm of rain over roughly 17.2 rainy days.
- What is the air quality in Bengaluru in September?
- Bengaluru has a mean US Air Quality Index of about 35 in September.