Belo Horizonte weather by month
Belo Horizonte runs from about 19°C in July to 24°C in September, with January the wettest month at 241 mm.
warmest month
September
24°C
coolest month
July
19°C
wettest month
January
241 mm
worst air month
June
11 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 23°C | 241 mm | 278 h | 7 |
| February | 22°C | 161 mm | 270 h | 7 |
| March | 23°C | 130 mm | 316 h | 9 |
| April | 22°C | 30 mm | 334 h | 9 |
| May | 21°C | 0 mm | 333 h | 11 |
| June | 19°C | 0 mm | 312 h | 11 |
| July | 19°C | 0 mm | 328 h | 10 |
| August | 20°C | 1 mm | 342 h | 9 |
| September | 24°C | 2 mm | 345 h | 8 |
| October | 23°C | 161 mm | 302 h | 9 |
| November | 22°C | 147 mm | 277 h | 8 |
| December | 23°C | 217 mm | 287 h | 7 |
About 3,724 hours of sun a year. Roughly 109 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.