Climate averages 1991–2020
Uruguaiana weather
in May.
A mild, wet month: the 9th warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Uruguaiana: daytime highs average 20.7°C and nights cool to about 13.1°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 115 mm of rain on roughly 8 days, which makes May a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 39 min on an average May day.
The nearest other city in this atlas is Alegrete (125 km away). In May its highs average 20.6°C, about as warm as Uruguaiana, with 121 mm of rain.
Among the 448 cities listed in Brazil, Uruguaiana ranks joint 413th of 448 for the warmest May highs and joint 342nd of 448 for the driest May (rainfall, lowest first). The mean May high of those 448 cities is 25.3°C; Uruguaiana is 4.7°C cooler than that mean.
From May to June, average highs fall by 2.3°C to 18.4°C, and monthly rainfall falls from 115 mm to 113 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Alegrete in MayBrazil · 125 kmHigh 20.6°C · Low 12.4°C · 121 mm rain
- Rivera in MayUruguay · 195 kmHigh 19.3°C · Low 11.5°C · 110 mm rain
- Sant'Ana do Livramento in MayBrazil · 196 kmHigh 19.1°C · Low 11.0°C · 110 mm rain
- Concordia in MayArgentina · 203 kmHigh 19.7°C · Low 12.1°C · 104 mm rain
- Goya in MayArgentina · 221 kmHigh 21.0°C · Low 14.0°C · 92 mm rain
- Ituzaingó in MayArgentina · 244 kmHigh 22.1°C · Low 15.3°C · 134 mm rain
- Reconquista in MayArgentina · 257 kmHigh 21.0°C · Low 13.7°C · 82 mm rain
- Posadas in MayArgentina · 286 kmHigh 22.1°C · Low 14.8°C · 143 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.