Climate averages 1991–2020
Caieiras 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 Caieiras: daytime highs average 23.0°C and nights cool to about 12.6°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 37 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 19 min on an average August day.
The nearest other city in this atlas is Francisco Morato (9 km away). In August its highs average 23.2°C, about as warm as Caieiras, with 37 mm of rain.
Among the 448 cities listed in Brazil, Caieiras ranks joint 357th of 448 for the warmest August highs and joint 247th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Caieiras is 3.2°C cooler than that mean.
From August to September, average highs rise by 1.4°C to 24.4°C, and monthly rainfall rises from 37 mm to 91 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
Caieiras climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.3°C18.7°C | 18.7°C | 267 | 23.1 | 13.413 h |
| February | 26.7°C18.8°C | 18.8°C | 196 | 20.1 | 12.913 h |
| March | 25.7°C18.1°C | 18.1°C | 161 | 18.8 | 12.212 h |
| April | 24.5°C16.5°C | 16.5°C | 73 | 9.7 | 11.612 h |
| May | 22.0°C13.8°C | 13.8°C | 66 | 7.1 | 11.011 h |
| June | 21.4°C12.5°C | 12.5°C | 49 | 5.3 | 10.711 h |
| July | 21.4°C11.9°C | 11.9°C | 49 | 4.7 | 10.811 h |
| August, selected | 23.0°C12.6°C | 12.6°C | 37 | 4.9 | 11.311 h |
| September | 24.4°C14.4°C | 14.4°C | 91 | 9.1 | 11.912 h |
| October | 25.2°C15.9°C | 15.9°C | 132 | 14.3 | 12.613 h |
| November | 24.9°C16.5°C | 16.5°C | 169 | 16.3 | 13.213 h |
| December | 26.0°C17.9°C | 17.9°C | 210 | 20.6 | 13.514 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
- Francisco Morato in AugustBrazil · 9 kmHigh 23.2°C · Low 12.4°C · 37 mm rain
- Mairiporã in AugustBrazil · 17 kmHigh 23.5°C · Low 13.0°C · 36 mm rain
- Várzea Paulista in AugustBrazil · 19 kmHigh 23.7°C · Low 12.2°C · 37 mm rain
- Osasco in AugustBrazil · 19 kmHigh 23.1°C · Low 12.6°C · 36 mm rain
- Santana de Parnaíba in AugustBrazil · 20 kmHigh 23.5°C · Low 12.9°C · 38 mm rain
- Barueri in AugustBrazil · 21 kmHigh 23.4°C · Low 13.0°C · 38 mm rain
- São Paulo in AugustBrazil · 23 kmHigh 23.0°C · Low 12.8°C · 36 mm rain
- Guarulhos in AugustBrazil · 24 kmHigh 22.8°C · Low 12.7°C · 40 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 Caieiras) is explained once on the Caieiras year overview and on the Sources, method and limits page.
Francisco Morato and Várzea Paulista lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.