Curitiba weather by month
Curitiba runs from about 14°C in July to 21°C in February, with December the wettest month at 293 mm.
warmest month
February
21°C
coolest month
July
14°C
wettest month
December
293 mm
worst air month
August
13 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 21°C | 157 mm | 311 h | 9 |
| February | 21°C | 125 mm | 272 h | 8 |
| March | 21°C | 105 mm | 275 h | 9 |
| April | 20°C | 88 mm | 225 h | 9 |
| May | 18°C | 169 mm | 239 h | 9 |
| June | 16°C | 42 mm | 279 h | 10 |
| July | 14°C | 135 mm | 220 h | 12 |
| August | 15°C | 61 mm | 298 h | 13 |
| September | 19°C | 111 mm | 280 h | 10 |
| October | 18°C | 122 mm | 259 h | 7 |
| November | 19°C | 138 mm | 240 h | 8 |
| December | 20°C | 293 mm | 253 h | 10 |
About 3,151 hours of sun a year. Roughly 156 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.