Lucknow weather by month
Lucknow runs from about 12°C in January to 35°C in June, with July the wettest month at 430 mm.
warmest month
June
35°C
coolest month
January
12°C
wettest month
July
430 mm
worst air month
December
128 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 12°C | 14 mm | 276 h | 109 |
| February | 17°C | 43 mm | 282 h | 68 |
| March | 23°C | 27 mm | 332 h | 59 |
| April | 31°C | 0 mm | 339 h | 46 |
| May | 34°C | 7 mm | 347 h | 53 |
| June | 35°C | 80 mm | 306 h | 63 |
| July | 30°C | 430 mm | 247 h | 34 |
| August | 28°C | 272 mm | 235 h | 33 |
| September | 28°C | 252 mm | 252 h | 38 |
| October | 27°C | 9 mm | 323 h | 55 |
| November | 23°C | 0 mm | 299 h | 84 |
| December | 17°C | 5 mm | 275 h | 128 |
About 3,513 hours of sun a year. Roughly 101 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.