Climate averages 1991–2020
Santa Maria weather
in August.
A mild, wet month: the 10th 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 Maria: daytime highs average 20.2°C and nights cool to about 9.8°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 122 mm of rain on roughly 10 days, which makes August a wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 03 min on an average August day.
The nearest other city in this atlas is Cachoeira do Sul (96 km away). In August its highs average 20.2°C, about as warm as Santa Maria, with 121 mm of rain.
Among the 448 cities listed in Brazil, Santa Maria ranks joint 420th of 448 for the warmest August highs and joint 436th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Santa Maria is 6.0°C cooler than that mean.
From August to September, average highs rise by 1.0°C to 21.2°C, and monthly rainfall rises from 122 mm to 157 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 Maria climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.1°C19.5°C | 19.5°C | 159 | 13.8 | 13.814 h |
| February | 28.4°C19.4°C | 19.4°C | 146 | 12.6 | 13.113 h |
| March | 27.1°C17.9°C | 17.9°C | 124 | 11.2 | 12.312 h |
| April | 24.1°C14.9°C | 14.9°C | 144 | 10.1 | 11.411 h |
| May | 20.3°C11.6°C | 11.6°C | 127 | 9.5 | 10.711 h |
| June | 18.4°C9.7°C | 9.7°C | 137 | 10.1 | 10.310 h |
| July | 17.8°C8.5°C | 8.5°C | 149 | 10.2 | 10.410 h |
| August, selected | 20.2°C9.8°C | 9.8°C | 122 | 9.8 | 11.111 h |
| September | 21.2°C11.4°C | 11.4°C | 157 | 10.6 | 11.912 h |
| October | 23.6°C13.9°C | 13.9°C | 208 | 12.6 | 12.813 h |
| November | 26.0°C15.5°C | 15.5°C | 136 | 10.2 | 13.614 h |
| December | 28.6°C18.2°C | 18.2°C | 158 | 11.8 | 14.014 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
- Cachoeira do Sul in AugustBrazil · 96 kmHigh 20.2°C · Low 10.3°C · 121 mm rain
- Santa Cruz do Sul in AugustBrazil · 133 kmHigh 20.5°C · Low 10.3°C · 125 mm rain
- Ijuí in AugustBrazil · 145 kmHigh 21.0°C · Low 11.3°C · 108 mm rain
- Santo Ângelo in AugustBrazil · 160 kmHigh 21.2°C · Low 11.4°C · 104 mm rain
- Lajeado in AugustBrazil · 180 kmHigh 20.7°C · Low 10.5°C · 126 mm rain
- Bagé in AugustBrazil · 185 kmHigh 18.5°C · Low 9.3°C · 113 mm rain
- Alegrete in AugustBrazil · 192 kmHigh 20.4°C · Low 10.6°C · 109 mm rain
- Passo Fundo in AugustBrazil · 209 kmHigh 19.3°C · Low 9.7°C · 117 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 Maria) is explained once on the Santa Maria year overview and on the Sources, method and limits page.