Kunming weather by month
Kunming runs from about 10°C in January to 22°C in April, with June the wettest month at 323 mm.
warmest month
April
22°C
coolest month
January
10°C
wettest month
June
323 mm
worst air month
March
25 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 10°C | 47 mm | 272 h | 15 |
| February | 14°C | 6 mm | 299 h | 16 |
| March | 17°C | 17 mm | 342 h | 25 |
| April | 22°C | 12 mm | 354 h | 21 |
| May | 20°C | 94 mm | 324 h | 11 |
| June | 20°C | 323 mm | 287 h | 7 |
| July | 21°C | 167 mm | 302 h | 13 |
| August | 20°C | 159 mm | 331 h | 12 |
| September | 19°C | 148 mm | 293 h | 10 |
| October | 16°C | 117 mm | 261 h | 13 |
| November | 13°C | 41 mm | 214 h | 15 |
| December | 11°C | 6 mm | 250 h | 20 |
About 3,529 hours of sun a year. Roughly 113 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.