Climate averages 1991–2020
São João da Boa Vista weather
in August.
A warm, fairly dry month: the 9th warmest and the 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 da Boa Vista: daytime highs average 25.8°C and nights cool to about 13.5°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 26 mm of rain on roughly 4 days, which makes August a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 22 min on an average August day.
The nearest other city in this atlas is Poços de Caldas (32 km away). In August its highs average 23.0°C, 2.8°C cooler than São João da Boa Vista, with 29 mm of rain.
Among the 448 cities listed in Brazil, São João da Boa Vista ranks joint 224th of 448 for the warmest August highs and joint 171st of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; São João da Boa Vista is 0.4°C cooler than that mean.
From August to September, average highs rise by 1.8°C to 27.7°C, and monthly rainfall rises from 26 mm to 77 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 da Boa Vista climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.6°C19.5°C | 19.5°C | 282 | 24.0 | 13.313 h |
| February | 27.8°C19.4°C | 19.4°C | 213 | 20.3 | 12.813 h |
| March | 27.2°C18.6°C | 18.6°C | 183 | 19.9 | 12.212 h |
| April | 26.3°C16.7°C | 16.7°C | 80 | 10.3 | 11.612 h |
| May | 23.9°C13.7°C | 13.7°C | 56 | 6.4 | 11.111 h |
| June | 23.5°C12.5°C | 12.5°C | 32 | 4.1 | 10.811 h |
| July | 23.8°C12.2°C | 12.2°C | 27 | 3.3 | 10.911 h |
| August, selected | 25.8°C13.5°C | 13.5°C | 26 | 3.7 | 11.411 h |
| September | 27.7°C16.2°C | 16.2°C | 77 | 8.7 | 12.012 h |
| October | 28.1°C18.0°C | 18.0°C | 122 | 14.5 | 12.613 h |
| November | 27.2°C18.4°C | 18.4°C | 191 | 19.4 | 13.113 h |
| December | 27.5°C19.2°C | 19.2°C | 245 | 23.4 | 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
- Poços de Caldas in AugustBrazil · 32 kmHigh 23.0°C · Low 11.9°C · 29 mm rain
- Mogi Guaçu in AugustBrazil · 47 kmHigh 26.3°C · Low 13.4°C · 28 mm rain
- Itapira in AugustBrazil · 52 kmHigh 26.1°C · Low 13.9°C · 31 mm rain
- Mogi Mirim in AugustBrazil · 54 kmHigh 26.2°C · Low 13.3°C · 33 mm rain
- Pirassununga in AugustBrazil · 65 kmHigh 26.7°C · Low 14.1°C · 25 mm rain
- Leme in AugustBrazil · 66 kmHigh 26.5°C · Low 13.8°C · 30 mm rain
- Araras in AugustBrazil · 74 kmHigh 26.0°C · Low 13.7°C · 30 mm rain
- Cosmópolis in AugustBrazil · 86 kmHigh 26.2°C · Low 13.8°C · 32 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 da Boa Vista) is explained once on the São João da Boa Vista year overview and on the Sources, method and limits page.