Climate averages 1991–2020
Barra da Tijuca weather
in August.
A warm, moderately wet 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 Barra da Tijuca: daytime highs average 26.5°C and nights cool to about 17.5°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 41 mm of rain on roughly 8 days, which makes August a moderately wet 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 Rio de Janeiro (21 km away). In August its highs average 25.9°C, 0.7°C cooler than Barra da Tijuca, with 41 mm of rain.
Among the 448 cities listed in Brazil, Barra da Tijuca ranks joint 179th of 448 for the warmest August highs and joint 270th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Barra da Tijuca is 0.3°C warmer than that mean.
From August to September, average highs rise by 0.9°C to 27.5°C, and monthly rainfall rises from 41 mm to 75 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
Barra da Tijuca climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.2°C23.9°C | 23.9°C | 170 | 16.4 | 13.413 h |
| February | 31.7°C24.0°C | 24.0°C | 118 | 13.3 | 12.913 h |
| March | 30.1°C23.3°C | 23.3°C | 145 | 16.7 | 12.212 h |
| April | 28.5°C21.7°C | 21.7°C | 88 | 12.0 | 11.612 h |
| May | 26.2°C19.1°C | 19.1°C | 76 | 11.1 | 11.011 h |
| June | 25.8°C17.7°C | 17.7°C | 48 | 7.3 | 10.711 h |
| July | 25.5°C17.0°C | 17.0°C | 51 | 7.9 | 10.911 h |
| August, selected | 26.5°C17.5°C | 17.5°C | 41 | 7.5 | 11.311 h |
| September | 27.5°C19.0°C | 19.0°C | 75 | 10.5 | 11.912 h |
| October | 28.5°C20.5°C | 20.5°C | 92 | 11.7 | 12.613 h |
| November | 28.6°C21.5°C | 21.5°C | 139 | 15.8 | 13.213 h |
| December | 30.2°C23.0°C | 23.0°C | 151 | 16.2 | 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
- Rio de Janeiro in AugustBrazil · 21 kmHigh 25.9°C · Low 17.5°C · 41 mm rain
- Duque de Caxias in AugustBrazil · 24 kmHigh 26.1°C · Low 16.7°C · 44 mm rain
- Belford Roxo in AugustBrazil · 26 kmHigh 26.3°C · Low 16.8°C · 32 mm rain
- Nova Iguaçu in AugustBrazil · 28 kmHigh 26.4°C · Low 16.4°C · 32 mm rain
- Queimados in AugustBrazil · 37 kmHigh 26.3°C · Low 16.2°C · 32 mm rain
- São Gonçalo in AugustBrazil · 37 kmHigh 25.3°C · Low 16.8°C · 44 mm rain
- Itaguaí in AugustBrazil · 45 kmHigh 25.6°C · Low 17.1°C · 35 mm rain
- Seropédica in AugustBrazil · 45 kmHigh 26.2°C · Low 16.0°C · 35 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 Barra da Tijuca) is explained once on the Barra da Tijuca year overview and on the Sources, method and limits page.
Rio de Janeiro lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.