Climate averages 1991–2020
São João del Rei weather
in January.
A warm, very wet month: the 2nd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a warm month in São João del Rei: daytime highs average 26.3°C and nights cool to about 18.4°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 228 mm of rain on roughly 21 days, which makes January a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 15 min on an average January day.
The nearest other city in this atlas is Barbacena (52 km away). In January its highs average 24.5°C, 1.8°C cooler than São João del Rei, with 291 mm of rain.
Among the 448 cities listed in Brazil, São João del Rei ranks joint 393rd of 448 for the warmest January highs and joint 230th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; São João del Rei is 2.2°C cooler than that mean.
From January to February, average highs rise by 0.5°C to 26.8°C, and monthly rainfall falls from 228 mm to 136 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- Barbacena in JanuaryBrazil · 52 kmHigh 24.5°C · Low 16.9°C · 291 mm rain
- Conselheiro Lafaiete in JanuaryBrazil · 72 kmHigh 25.6°C · Low 17.6°C · 236 mm rain
- Lavras in JanuaryBrazil · 77 kmHigh 26.4°C · Low 18.3°C · 229 mm rain
- Ouro Preto in JanuaryBrazil · 114 kmHigh 24.5°C · Low 16.9°C · 294 mm rain
- Juiz de Fora in JanuaryBrazil · 117 kmHigh 27.4°C · Low 19.3°C · 342 mm rain
- Três Corações in JanuaryBrazil · 120 kmHigh 26.6°C · Low 18.5°C · 281 mm rain
- Água Rasa in JanuaryBrazil · 122 kmHigh 25.6°C · Low 17.8°C · 271 mm rain
- Itaúna in JanuaryBrazil · 122 kmHigh 26.9°C · Low 19.1°C · 233 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.