Nainital weather by month
Nainital runs from about 6°C in December to 22°C in June, with July the wettest month at 775 mm.
warmest month
June
22°C
coolest month
December
6°C
wettest month
July
775 mm
worst air month
December
53 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 6°C | 4 mm | 305 h | 51 |
| February | 7°C | 132 mm | 276 h | 41 |
| March | 12°C | 114 mm | 326 h | 36 |
| April | 17°C | 8 mm | 353 h | 17 |
| May | 20°C | 50 mm | 374 h | 31 |
| June | 22°C | 81 mm | 340 h | 34 |
| July | 19°C | 775 mm | 247 h | 23 |
| August | 19°C | 419 mm | 252 h | 22 |
| September | 18°C | 385 mm | 255 h | 25 |
| October | 15°C | 28 mm | 332 h | 29 |
| November | 10°C | 14 mm | 298 h | 33 |
| December | 6°C | 36 mm | 284 h | 53 |
About 3,642 hours of sun a year. Roughly 136 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 2026-05-25. Full method, licences and the list of sources we rejected are on the methodology page.