Climate averages 1991–2020
São Paulo 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 Paulo: daytime highs average 23.0°C and nights cool to about 12.8°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 36 mm of rain on roughly 5 days, which makes August a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 18 min on an average August day.
The nearest other city in this atlas is São Caetano do Sul (12 km away). In August its highs average 22.6°C, about as warm as São Paulo, with 40 mm of rain.
Among the 448 cities listed in Brazil, São Paulo ranks joint 357th of 448 for the warmest August highs and joint 238th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; São Paulo is 3.2°C cooler than that mean.
From August to September, average highs rise by 1.3°C to 24.2°C, and monthly rainfall rises from 36 mm to 84 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 Paulo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.4°C19.0°C | 19.0°C | 222 | 23.0 | 13.413 h |
| February | 26.8°C19.1°C | 19.1°C | 165 | 19.8 | 12.913 h |
| March | 25.7°C18.4°C | 18.4°C | 139 | 19.0 | 12.212 h |
| April | 24.6°C16.8°C | 16.8°C | 60 | 9.5 | 11.612 h |
| May | 22.1°C14.1°C | 14.1°C | 58 | 7.1 | 11.011 h |
| June | 21.6°C12.8°C | 12.8°C | 45 | 5.3 | 10.711 h |
| July | 21.5°C12.1°C | 12.1°C | 49 | 5.4 | 10.811 h |
| August, selected | 23.0°C12.8°C | 12.8°C | 36 | 4.8 | 11.311 h |
| September | 24.2°C14.5°C | 14.5°C | 84 | 9.3 | 11.912 h |
| October | 25.0°C16.0°C | 16.0°C | 109 | 13.5 | 12.613 h |
| November | 24.8°C16.6°C | 16.6°C | 145 | 15.8 | 13.213 h |
| December | 26.0°C18.2°C | 18.2°C | 170 | 20.1 | 13.614 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
- São Caetano do Sul in AugustBrazil · 12 kmHigh 22.6°C · Low 12.8°C · 40 mm rain
- Guarulhos in AugustBrazil · 14 kmHigh 22.8°C · Low 12.7°C · 40 mm rain
- Osasco in AugustBrazil · 16 kmHigh 23.1°C · Low 12.6°C · 36 mm rain
- Santo André in AugustBrazil · 16 kmHigh 22.0°C · Low 12.9°C · 68 mm rain
- São Bernardo do Campo in AugustBrazil · 18 kmHigh 22.0°C · Low 12.6°C · 68 mm rain
- Taboão da Serra in AugustBrazil · 18 kmHigh 22.5°C · Low 12.5°C · 51 mm rain
- Caieiras in AugustBrazil · 23 kmHigh 23.0°C · Low 12.6°C · 37 mm rain
- Embu das Artes in AugustBrazil · 25 kmHigh 22.7°C · Low 12.8°C · 51 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 Paulo) is explained once on the São Paulo year overview and on the Sources, method and limits page.
Osasco lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.