Ooty weather by month
Ooty runs from about 14°C in January to 18°C in April, with July the wettest month at 318 mm.
warmest month
April
18°C
coolest month
January
14°C
wettest month
July
318 mm
worst air month
February
29 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 14°C | 104 mm | 310 h | 29 |
| February | 15°C | 11 mm | 335 h | 29 |
| March | 17°C | 5 mm | 369 h | 28 |
| April | 18°C | 8 mm | 357 h | 24 |
| May | 18°C | 236 mm | 258 h | 15 |
| June | 16°C | 196 mm | 246 h | 6 |
| July | 16°C | 318 mm | 192 h | 3 |
| August | 16°C | 250 mm | 274 h | 5 |
| September | 16°C | 79 mm | 330 h | 6 |
| October | 15°C | 308 mm | 249 h | 10 |
| November | 14°C | 109 mm | 266 h | 24 |
| December | 14°C | 104 mm | 298 h | 28 |
About 3,484 hours of sun a year. Roughly 171 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 2026-05-27. Full method, licences and the list of sources we rejected are on the methodology page.