Mussoorie weather by month
Mussoorie runs from about 6°C in February to 22°C in June, with August the wettest month at 647 mm.
warmest month
June
22°C
coolest month
February
6°C
wettest month
August
647 mm
worst air month
December
56 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 7°C | 9 mm | 299 h | 52 |
| February | 6°C | 127 mm | 255 h | 39 |
| March | 11°C | 158 mm | 315 h | 30 |
| April | 15°C | 48 mm | 332 h | 16 |
| May | 20°C | 44 mm | 380 h | 29 |
| June | 22°C | 106 mm | 346 h | 30 |
| July | 20°C | 456 mm | 265 h | 27 |
| August | 19°C | 647 mm | 255 h | 27 |
| September | 18°C | 418 mm | 254 h | 29 |
| October | 15°C | 43 mm | 332 h | 27 |
| November | 11°C | 11 mm | 297 h | 33 |
| December | 7°C | 46 mm | 271 h | 56 |
About 3,601 hours of sun a year. Roughly 150 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.