Delhi weather in September
September in Delhi: sweltering, rainy, with poor air quality — a fair time to visit.
#8 of 12 months in Delhi · #524 of 604 destinations to visit in September · comfort 58/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Delhi climate normals — September
| Daytime high | 32°C / 90°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Feels like (high) | 38°C / 100°F | |
| Rainfall | 112 mm / 4.4 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 23°C / 74°F | |
| Sunshine | 9.8 h/day | |
| Daylight | 12.3 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 126 | 😷 poor |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Delhi in September — FAQ
- Is September a good time to visit Delhi?
- September in Delhi: sweltering, rainy, with poor air quality — a fair time to visit. It ranks #8 of 12 months for Delhi on SeasonMap's comfort score (58/100).
- What is the weather like in Delhi in September?
- In September, Delhi averages a daily high of 32.3°C and a low of 24.7°C, with about 112.3 mm of rain over roughly 13 rainy days.
- What is the air quality in Delhi in September?
- Delhi has a mean US Air Quality Index of about 126 in September.