Climate averages 1991–2020
Puducherry weather
in September.
A hot, wet month: the 6th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Puducherry: daytime highs average 31.6°C and nights cool to about 26.5°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 99 mm of rain on roughly 15 days, which makes September a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 12 min on an average September day.
The nearest other city in this atlas is Cuddalore (21 km away). In September its highs average 31.7°C, about as warm as Puducherry, with 92 mm of rain.
Among the 692 cities listed in India, Puducherry ranks joint 202nd of 692 for the warmest September highs and joint 139th of 692 for the driest September (rainfall, lowest first). The mean September high of those 692 cities is 30.7°C; Puducherry is 1.0°C warmer than that mean.
From September to October, average highs fall by 1.8°C to 29.9°C, and monthly rainfall rises from 99 mm to 215 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Puducherry climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.2°C22.4°C | 22.4°C | 18 | 3.7 | 11.512 h |
| February | 28.5°C23.0°C | 23.0°C | 9.4 | 2.3 | 11.712 h |
| March | 30.3°C24.5°C | 24.5°C | 17 | 2.4 | 12.112 h |
| April | 31.9°C27.0°C | 27.0°C | 30 | 4.4 | 12.412 h |
| May | 33.3°C28.2°C | 28.2°C | 43 | 6.2 | 12.713 h |
| June | 33.3°C27.9°C | 27.9°C | 47 | 9.9 | 12.813 h |
| July | 32.9°C27.4°C | 27.4°C | 61 | 12.1 | 12.813 h |
| August | 32.3°C26.9°C | 26.9°C | 88 | 13.6 | 12.513 h |
| September, selected | 31.6°C26.5°C | 26.5°C | 99 | 14.8 | 12.212 h |
| October | 29.9°C25.4°C | 25.4°C | 215 | 19.8 | 11.912 h |
| November | 27.9°C24.1°C | 24.1°C | 259 | 18.0 | 11.612 h |
| December | 27.0°C23.1°C | 23.1°C | 141 | 10.2 | 11.411 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Cuddalore in SeptemberIndia · 21 kmHigh 31.7°C · Low 26.4°C · 92 mm rain
- Villupuram in SeptemberIndia · 37 kmHigh 33.7°C · Low 25.6°C · 128 mm rain
- Tindivanam in SeptemberIndia · 38 kmHigh 33.5°C · Low 25.8°C · 119 mm rain
- Neyveli in SeptemberIndia · 51 kmHigh 33.8°C · Low 25.4°C · 117 mm rain
- Virudhachalam in SeptemberIndia · 72 kmHigh 34.1°C · Low 25.3°C · 116 mm rain
- Tiruvannamalai in SeptemberIndia · 88 kmHigh 33.4°C · Low 24.8°C · 115 mm rain
- Mayiladuthurai in SeptemberIndia · 94 kmHigh 32.5°C · Low 26.3°C · 72 mm rain
- Kallakurichi in SeptemberIndia · 97 kmHigh 33.3°C · Low 24.5°C · 128 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Puducherry) is explained once on the Puducherry year overview and on the Sources, method and limits page.