La Plata weather by month
La Plata runs from about 8°C in July to 25°C in February, with March the wettest month at 195 mm.
warmest month
February
25°C
coolest month
July
8°C
wettest month
March
195 mm
worst air month
July
8 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 24°C | 51 mm | 398 h | 6 |
| February | 25°C | 145 mm | 312 h | 5 |
| March | 22°C | 195 mm | 295 h | 6 |
| April | 18°C | 178 mm | 211 h | 5 |
| May | 11°C | 17 mm | 208 h | 7 |
| June | 13°C | 57 mm | 213 h | 8 |
| July | 8°C | 13 mm | 268 h | 8 |
| August | 11°C | 151 mm | 202 h | 5 |
| September | 15°C | 19 mm | 299 h | 6 |
| October | 19°C | 36 mm | 318 h | 5 |
| November | 21°C | 186 mm | 352 h | 7 |
| December | 21°C | 46 mm | 392 h | 7 |
About 3,468 hours of sun a year. Roughly 112 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.