Climate averages 1991–2020
Uruguaiana weather
in August.
A mild, moderately wet month: the 10th 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 mild month in Uruguaiana: daytime highs average 20.4°C and nights cool to about 11.1°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 89 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 03 min on an average August day.
The nearest other city in this atlas is Alegrete (125 km away). In August its highs average 20.4°C, about as warm as Uruguaiana, with 109 mm of rain.
Among the 448 cities listed in Brazil, Uruguaiana ranks joint 417th of 448 for the warmest August highs and joint 377th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Uruguaiana is 5.8°C cooler than that mean.
From August to September, average highs rise by 1.6°C to 22.0°C, and monthly rainfall rises from 89 mm to 126 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
Uruguaiana climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.6°C21.6°C | 21.6°C | 139 | 10.4 | 13.814 h |
| February | 29.6°C21.0°C | 21.0°C | 128 | 10.4 | 13.113 h |
| March | 28.0°C19.3°C | 19.3°C | 124 | 9.2 | 12.312 h |
| April | 24.6°C16.3°C | 16.3°C | 177 | 9.3 | 11.411 h |
| May | 20.7°C13.1°C | 13.1°C | 115 | 8.0 | 10.611 h |
| June | 18.4°C10.9°C | 10.9°C | 113 | 8.5 | 10.310 h |
| July | 17.8°C9.7°C | 9.7°C | 103 | 7.5 | 10.410 h |
| August, selected | 20.4°C11.1°C | 11.1°C | 89 | 7.8 | 11.111 h |
| September | 22.0°C12.6°C | 12.6°C | 126 | 9.0 | 11.912 h |
| October | 24.6°C15.4°C | 15.4°C | 189 | 10.9 | 12.813 h |
| November | 27.3°C17.4°C | 17.4°C | 136 | 8.4 | 13.614 h |
| December | 29.8°C20.1°C | 20.1°C | 136 | 9.4 | 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
- Alegrete in AugustBrazil · 125 kmHigh 20.4°C · Low 10.6°C · 109 mm rain
- Rivera in AugustUruguay · 195 kmHigh 18.8°C · Low 9.4°C · 105 mm rain
- Sant'Ana do Livramento in AugustBrazil · 196 kmHigh 18.6°C · Low 8.9°C · 105 mm rain
- Concordia in AugustArgentina · 203 kmHigh 19.1°C · Low 9.6°C · 91 mm rain
- Goya in AugustArgentina · 221 kmHigh 21.1°C · Low 11.7°C · 68 mm rain
- Ituzaingó in AugustArgentina · 244 kmHigh 22.2°C · Low 13.6°C · 85 mm rain
- Reconquista in AugustArgentina · 257 kmHigh 21.2°C · Low 11.3°C · 65 mm rain
- Posadas in AugustArgentina · 286 kmHigh 22.5°C · Low 13.4°C · 90 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 Uruguaiana) is explained once on the Uruguaiana year overview and on the Sources, method and limits page.