Rishikesh weather by month
Rishikesh runs from about 10°C in January to 31°C in June, with August the wettest month at 450 mm.
warmest month
June
31°C
coolest month
January
10°C
wettest month
August
450 mm
worst air month
December
52 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 10°C | 2 mm | 303 h | 50 |
| February | 13°C | 46 mm | 268 h | 38 |
| March | 19°C | 67 mm | 327 h | 30 |
| April | 24°C | 0 mm | 339 h | 15 |
| May | 29°C | 12 mm | 370 h | 30 |
| June | 31°C | 47 mm | 331 h | 31 |
| July | 28°C | 409 mm | 274 h | 25 |
| August | 27°C | 450 mm | 263 h | 25 |
| September | 26°C | 257 mm | 261 h | 26 |
| October | 23°C | 0 mm | 338 h | 26 |
| November | 18°C | 0 mm | 292 h | 31 |
| December | 12°C | 27 mm | 265 h | 52 |
About 3,631 hours of sun a year. Roughly 107 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.