Pondicherry weather in September
September in Pondicherry: sweltering, rainy, with very humid — a great time to visit.
#8 of 12 months in Pondicherry · #347 of 604 destinations to visit in September · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Pondicherry climate normals — September
| Daytime high | 31°C / 88°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 37°C / 99°F | |
| Rainfall | 108 mm / 4.3 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 9 h/day | |
| Daylight | 12.2 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 60 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Pondicherry in September — FAQ
- Is September a good time to visit Pondicherry?
- September in Pondicherry: sweltering, rainy, with very humid — a great time to visit. It ranks #8 of 12 months for Pondicherry on SeasonMap's comfort score (78/100).
- What is the weather like in Pondicherry in September?
- In September, Pondicherry averages a daily high of 31.1°C and a low of 26°C, with about 108 mm of rain over roughly 16.8 rainy days.
- What is the air quality in Pondicherry in September?
- Pondicherry has a mean US Air Quality Index of about 60 in September.