La Paz weather by month
La Paz runs from about 9°C in July to 12°C in January, with March the wettest month at 171 mm.
warmest month
January
12°C
coolest month
July
9°C
wettest month
March
171 mm
worst air month
September
6 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 12°C | 65 mm | 370 h | 4 |
| February | 11°C | 125 mm | 303 h | 5 |
| March | 11°C | 171 mm | 323 h | 4 |
| April | 11°C | 80 mm | 321 h | 3 |
| May | 10°C | 50 mm | 339 h | 5 |
| June | 10°C | 1 mm | 329 h | 6 |
| July | 9°C | 4 mm | 339 h | 6 |
| August | 10°C | 3 mm | 345 h | 5 |
| September | 11°C | 20 mm | 339 h | 6 |
| October | 12°C | 66 mm | 368 h | 5 |
| November | 12°C | 110 mm | 339 h | 4 |
| December | 12°C | 71 mm | 357 h | 4 |
About 4,072 hours of sun a year. Roughly 77 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.