Climate averages 1991–2020
Santa Rosa, Brazil weather
in August.
A mild, wet month: the 9th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Santa Rosa, Brazil: daytime highs average 21.7°C and nights cool to about 12.2°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 94 mm of rain on roughly 9 days, which makes August a wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 08 min on an average August day.
The nearest other city in this atlas is Santo Ângelo (52 km away). In August its highs average 21.2°C, 0.5°C cooler than Santa Rosa, Brazil, with 104 mm of rain.
Among the 448 cities listed in Brazil, Santa Rosa, Brazil ranks 382nd of 448 for the warmest August highs and joint 386th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Santa Rosa, Brazil is 4.4°C cooler than that mean.
From August to September, average highs rise by 1.6°C to 23.4°C, and monthly rainfall rises from 94 mm to 152 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
Santa Rosa, Brazil climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.9°C21.2°C | 21.2°C | 143 | 14.3 | 13.714 h |
| February | 29.0°C20.7°C | 20.7°C | 137 | 14.1 | 13.113 h |
| March | 28.1°C19.5°C | 19.5°C | 127 | 11.7 | 12.312 h |
| April | 25.4°C16.8°C | 16.8°C | 155 | 9.6 | 11.411 h |
| May | 21.5°C13.4°C | 13.4°C | 152 | 9.3 | 10.811 h |
| June | 19.8°C11.9°C | 11.9°C | 143 | 9.4 | 10.410 h |
| July | 19.2°C10.7°C | 10.7°C | 137 | 9.4 | 10.611 h |
| August, selected | 21.7°C12.2°C | 12.2°C | 94 | 8.5 | 11.111 h |
| September | 23.4°C13.8°C | 13.8°C | 152 | 10.3 | 11.912 h |
| October | 25.7°C16.4°C | 16.4°C | 214 | 12.9 | 12.713 h |
| November | 27.5°C17.7°C | 17.7°C | 156 | 11.0 | 13.513 h |
| December | 29.5°C20.1°C | 20.1°C | 160 | 13.1 | 13.914 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
- Santo Ângelo in AugustBrazil · 52 kmHigh 21.2°C · Low 11.4°C · 104 mm rain
- Ijuí in AugustBrazil · 80 kmHigh 21.0°C · Low 11.3°C · 108 mm rain
- Encarnación in AugustParaguay · 149 kmHigh 22.7°C · Low 13.3°C · 89 mm rain
- Posadas in AugustArgentina · 152 kmHigh 22.5°C · Low 13.4°C · 90 mm rain
- Chapecó in AugustBrazil · 203 kmHigh 21.1°C · Low 10.2°C · 115 mm rain
- Passo Fundo in AugustBrazil · 208 kmHigh 19.3°C · Low 9.7°C · 117 mm rain
- Santa Maria in AugustBrazil · 212 kmHigh 20.2°C · Low 9.8°C · 122 mm rain
- Erechim in AugustBrazil · 219 kmHigh 19.8°C · Low 8.9°C · 121 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 Santa Rosa) is explained once on the Santa Rosa, Brazil year overview and on the Sources, method and limits page.