Climate averages 1991–2020
São João del Rei weather
in September.
A warm, moderately wet month: the 6th warmest and the 6th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in São João del Rei: daytime highs average 25.4°C and nights cool to about 14.7°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 60 mm of rain on roughly 7 days, which makes September a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average September day.
The nearest other city in this atlas is Barbacena (52 km away). In September its highs average 22.8°C, 2.6°C cooler than São João del Rei, with 77 mm of rain.
Among the 448 cities listed in Brazil, São João del Rei ranks joint 323rd of 448 for the warmest September highs and joint 207th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; São João del Rei is 2.1°C cooler than that mean.
From September to October, average highs rise by 0.5°C to 25.9°C, and monthly rainfall rises from 60 mm to 100 mm.
The annual picture
September 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 | 23.9°C12.8°C | 12.8°C | 17 | 2.8 | 11.411 h |
| September, selected | 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
September in nearby cities
- Barbacena in SeptemberBrazil · 52 kmHigh 22.8°C · Low 12.8°C · 77 mm rain
- Conselheiro Lafaiete in SeptemberBrazil · 72 kmHigh 24.5°C · Low 13.6°C · 64 mm rain
- Lavras in SeptemberBrazil · 77 kmHigh 26.2°C · Low 14.7°C · 59 mm rain
- Ouro Preto in SeptemberBrazil · 114 kmHigh 23.0°C · Low 12.9°C · 83 mm rain
- Juiz de Fora in SeptemberBrazil · 117 kmHigh 24.8°C · Low 15.0°C · 77 mm rain
- Três Corações in SeptemberBrazil · 120 kmHigh 26.2°C · Low 14.7°C · 78 mm rain
- Água Rasa in SeptemberBrazil · 122 kmHigh 25.8°C · Low 14.8°C · 59 mm rain
- Itaúna in SeptemberBrazil · 122 kmHigh 27.3°C · Low 16.2°C · 54 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.