Climate averages 1991–2020
Brasília weather
in August.
A warm, very dry month: the 3rd warmest and the 3rd 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 Brasília: daytime highs average 27.0°C and nights cool to about 15.6°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 6.2 mm of rain on roughly 2 days, which makes August a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 35 min on an average August day.
The nearest other city in this atlas is Águas Claras (12 km away). In August its highs average 26.9°C, about as warm as Brasília, with 6.2 mm of rain.
Among the 448 cities listed in Brazil, Brasília ranks joint 156th of 448 for the warmest August highs and joint 62nd of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Brasília is 0.8°C warmer than that mean.
From August to September, average highs rise by 2.0°C to 29.0°C, and monthly rainfall rises from 6.2 mm to 34 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
Brasília climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.0°C18.4°C | 18.4°C | 224 | 22.7 | 12.913 h |
| February | 26.2°C18.3°C | 18.3°C | 201 | 20.3 | 12.613 h |
| March | 25.9°C18.2°C | 18.2°C | 213 | 21.9 | 12.212 h |
| April | 25.8°C17.5°C | 17.5°C | 96 | 13.8 | 11.812 h |
| May | 25.5°C16.0°C | 16.0°C | 20 | 3.5 | 11.411 h |
| June | 25.0°C14.6°C | 14.6°C | 4.5 | 0.7 | 11.211 h |
| July | 25.2°C14.3°C | 14.3°C | 0.4 | 0.1 | 11.311 h |
| August, selected | 27.0°C15.6°C | 15.6°C | 6.2 | 1.5 | 11.612 h |
| September | 29.0°C17.9°C | 17.9°C | 34 | 5.8 | 12.012 h |
| October | 28.6°C18.8°C | 18.8°C | 123 | 15.3 | 12.412 h |
| November | 26.2°C18.3°C | 18.3°C | 229 | 22.8 | 12.813 h |
| December | 25.9°C18.4°C | 18.4°C | 243 | 24.0 | 13.013 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
- Águas Claras in AugustBrazil · 12 kmHigh 26.9°C · Low 15.7°C · 6.2 mm rain
- Riacho Fundo II in AugustBrazil · 18 kmHigh 26.6°C · Low 15.0°C · 6.4 mm rain
- Sobradinho II in AugustBrazil · 19 kmHigh 27.3°C · Low 15.9°C · 4.5 mm rain
- São Sebastião (Federal District), Brazil in AugustBrazil · 21 kmHigh 27.0°C · Low 15.1°C · 4.9 mm rain
- Ceilândia in AugustBrazil · 22 kmHigh 27.2°C · Low 15.9°C · 5.5 mm rain
- Samambaia in AugustBrazil · 22 kmHigh 26.6°C · Low 15.3°C · 6.4 mm rain
- Santa Maria, Brazil in AugustBrazil · 30 kmHigh 26.7°C · Low 15.3°C · 6.4 mm rain
- Gama in AugustBrazil · 31 kmHigh 27.5°C · Low 15.7°C · 6.4 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 Brasília) is explained once on the Brasília year overview and on the Sources, method and limits page.
Águas Claras lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.