Delhi weather by month
Delhi runs from about 10°C in January to 35°C in June, with August the wettest month at 320 mm.
warmest month
June
35°C
coolest month
January
10°C
wettest month
August
320 mm
worst air month
December
127 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 10°C | 10 mm | 238 h | 121 |
| February | 16°C | 6 mm | 278 h | 81 |
| March | 21°C | 38 mm | 339 h | 76 |
| April | 29°C | 4 mm | 332 h | 73 |
| May | 34°C | 1 mm | 347 h | 103 |
| June | 35°C | 54 mm | 301 h | 102 |
| July | 31°C | 189 mm | 280 h | 57 |
| August | 28°C | 320 mm | 251 h | 63 |
| September | 28°C | 301 mm | 267 h | 42 |
| October | 26°C | 0 mm | 334 h | 70 |
| November | 21°C | 0 mm | 293 h | 101 |
| December | 15°C | 42 mm | 268 h | 127 |
About 3,528 hours of sun a year. Roughly 94 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 2026-05-22. Full method, licences and the list of sources we rejected are on the methodology page.