Climate averages 1991–2020
São João del Rei weather
in August.
A warm, fairly dry month: the 9th warmest and the 3rd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in São João del Rei: daytime highs average 23.9°C and nights cool to about 12.8°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 17 mm of rain on roughly 3 days, which makes August a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 24 min on an average August day.
The nearest other city in this atlas is Barbacena (52 km away). In August its highs average 21.4°C, 2.5°C cooler than São João del Rei, with 26 mm of rain.
Among the 448 cities listed in Brazil, São João del Rei ranks joint 325th of 448 for the warmest August highs and joint 136th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; São João del Rei is 2.3°C cooler than that mean.
From August to September, average highs rise by 1.5°C to 25.4°C, and monthly rainfall rises from 17 mm to 60 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
São João del Rei climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.3°C18.4°C | 18.4°C | 228 | 20.5 | 13.313 h |
| February | 26.8°C18.4°C | 18.4°C | 136 | 15.8 | 12.813 h |
| March | 25.8°C17.9°C | 17.9°C | 147 | 17.4 | 12.212 h |
| April | 24.7°C16.4°C | 16.4°C | 49 | 8.7 | 11.612 h |
| May | 22.7°C13.7°C | 13.7°C | 31 | 5.3 | 11.111 h |
| June | 22.1°C12.3°C | 12.3°C | 15 | 2.5 | 10.911 h |
| July | 22.3°C11.9°C | 11.9°C | 10 | 1.9 | 11.011 h |
| August, selected | 23.9°C12.8°C | 12.8°C | 17 | 2.8 | 11.411 h |
| September | 25.4°C14.7°C | 14.7°C | 60 | 7.3 | 12.012 h |
| October | 25.9°C16.4°C | 16.4°C | 100 | 12.5 | 12.613 h |
| November | 25.0°C17.0°C | 17.0°C | 186 | 18.9 | 13.113 h |
| December | 25.8°C18.0°C | 18.0°C | 238 | 22.2 | 13.413 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Barbacena in AugustBrazil · 52 kmHigh 21.4°C · Low 11.1°C · 26 mm rain
- Conselheiro Lafaiete in AugustBrazil · 72 kmHigh 23.1°C · Low 11.6°C · 16 mm rain
- Lavras in AugustBrazil · 77 kmHigh 24.5°C · Low 12.4°C · 16 mm rain
- Ouro Preto in AugustBrazil · 114 kmHigh 21.5°C · Low 11.0°C · 24 mm rain
- Juiz de Fora in AugustBrazil · 117 kmHigh 23.4°C · Low 13.2°C · 30 mm rain
- Três Corações in AugustBrazil · 120 kmHigh 24.5°C · Low 12.3°C · 24 mm rain
- Água Rasa in AugustBrazil · 122 kmHigh 24.1°C · Low 12.7°C · 16 mm rain
- Itaúna in AugustBrazil · 122 kmHigh 25.6°C · Low 13.8°C · 13 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for São João del Rei) is explained once on the São João del Rei year overview and on the Sources, method and limits page.