Pondicherry weather by month
Pondicherry runs from about 26°C in January to 30°C in May, with November the wettest month at 361 mm.
warmest month
May
30°C
coolest month
January
26°C
wettest month
November
361 mm
worst air month
December
34 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 26°C | 84 mm | 305 h | 31 |
| February | 27°C | 8 mm | 331 h | 28 |
| March | 28°C | 8 mm | 364 h | 17 |
| April | 30°C | 13 mm | 353 h | 12 |
| May | 30°C | 231 mm | 274 h | 17 |
| June | 30°C | 116 mm | 275 h | 18 |
| July | 30°C | 53 mm | 231 h | 14 |
| August | 29°C | 147 mm | 309 h | 18 |
| September | 30°C | 89 mm | 296 h | 17 |
| October | 28°C | 278 mm | 299 h | 14 |
| November | 26°C | 361 mm | 232 h | 26 |
| December | 26°C | 293 mm | 269 h | 34 |
About 3,538 hours of sun a year. Roughly 162 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.