Copacabana weather by month
Copacabana runs from about 9°C in August to 11°C in January, with February the wettest month at 426 mm.
warmest month
January
11°C
coolest month
August
9°C
wettest month
February
426 mm
worst air month
July
4 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 11°C | 301 mm | 371 h | 2 |
| February | 10°C | 426 mm | 305 h | 3 |
| March | 11°C | 291 mm | 330 h | 3 |
| April | 11°C | 140 mm | 327 h | 3 |
| May | 11°C | 70 mm | 335 h | 4 |
| June | 10°C | 4 mm | 327 h | 4 |
| July | 9°C | 1 mm | 340 h | 4 |
| August | 9°C | 7 mm | 350 h | 4 |
| September | 10°C | 36 mm | 346 h | 4 |
| October | 11°C | 88 mm | 374 h | 3 |
| November | 11°C | 276 mm | 344 h | 3 |
| December | 11°C | 167 mm | 359 h | 3 |
About 4,108 hours of sun a year. Roughly 169 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.