Lhasa weather by month
Lhasa runs from about -2°C in January to 17°C in June, with July the wettest month at 191 mm.
warmest month
June
17°C
coolest month
January
-2°C
wettest month
July
191 mm
worst air month
December
10 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | -2°C | 22 mm | 306 h | 6 |
| February | 1°C | 8 mm | 310 h | 8 |
| March | 7°C | 28 mm | 352 h | 9 |
| April | 9°C | 37 mm | 359 h | 7 |
| May | 12°C | 132 mm | 378 h | 6 |
| June | 17°C | 65 mm | 371 h | 3 |
| July | 17°C | 191 mm | 321 h | 6 |
| August | 16°C | 89 mm | 347 h | 7 |
| September | 15°C | 78 mm | 315 h | 7 |
| October | 11°C | 34 mm | 340 h | 5 |
| November | 6°C | 23 mm | 307 h | 9 |
| December | 4°C | 2 mm | 309 h | 10 |
About 4,015 hours of sun a year. Roughly 71 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 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.