Harbin weather by month
Harbin runs from about -17°C in January to 24°C in July, with July the wettest month at 218 mm.
warmest month
July
24°C
coolest month
January
-17°C
wettest month
July
218 mm
worst air month
March
48 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | -17°C | 4 mm | 228 h | 36 |
| February | -12°C | 6 mm | 253 h | 34 |
| March | -2°C | 11 mm | 308 h | 48 |
| April | 10°C | 14 mm | 317 h | 23 |
| May | 15°C | 103 mm | 280 h | 18 |
| June | 19°C | 210 mm | 251 h | 19 |
| July | 24°C | 218 mm | 328 h | 14 |
| August | 23°C | 181 mm | 286 h | 15 |
| September | 16°C | 27 mm | 278 h | 15 |
| October | 8°C | 25 mm | 269 h | 22 |
| November | -2°C | 20 mm | 186 h | 31 |
| December | -15°C | 4 mm | 229 h | 29 |
About 3,213 hours of sun a year. Roughly 82 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.