Climate averages 1991–2020
Rivera weather
in May.
A mild, wet month: the 9th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Rivera: daytime highs average 19.3°C and nights cool to about 11.5°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 110 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 35 min on an average May day.
The nearest other city in this atlas is Sant'Ana do Livramento (2 km away). In May its highs average 19.1°C, about as warm as Rivera, with 110 mm of rain.
Among the 4 cities listed in Uruguay, Rivera ranks 1st of 4 for the warmest May highs and 4th of 4 for the driest May (rainfall, lowest first). The mean May high of those 4 cities is 18.0°C; Rivera is 1.3°C warmer than that mean.
From May to June, average highs fall by 2.2°C to 17.1°C, and monthly rainfall rises from 110 mm to 124 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
Rivera climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.1°C19.4°C | 19.4°C | 133 | 10.7 | 13.914 h |
| February | 28.1°C19.1°C | 19.1°C | 129 | 10.5 | 13.213 h |
| March | 26.6°C17.5°C | 17.5°C | 107 | 9.4 | 12.312 h |
| April | 23.2°C14.7°C | 14.7°C | 143 | 9.0 | 11.411 h |
| May, selected | 19.3°C11.5°C | 11.5°C | 110 | 8.3 | 10.611 h |
| June | 17.1°C9.3°C | 9.3°C | 124 | 8.7 | 10.210 h |
| July | 16.5°C8.3°C | 8.3°C | 108 | 8.1 | 10.310 h |
| August | 18.8°C9.4°C | 9.4°C | 105 | 8.2 | 11.011 h |
| September | 20.0°C10.7°C | 10.7°C | 131 | 9.4 | 11.912 h |
| October | 22.6°C13.3°C | 13.3°C | 161 | 10.9 | 12.813 h |
| November | 25.4°C15.1°C | 15.1°C | 117 | 8.3 | 13.714 h |
| December | 28.2°C17.9°C | 17.9°C | 117 | 9.8 | 14.114 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
- Sant'Ana do Livramento in MayBrazil · 2 kmHigh 19.1°C · Low 11.0°C · 110 mm rain
- Alegrete in MayBrazil · 127 kmHigh 20.6°C · Low 12.4°C · 121 mm rain
- Bagé in MayBrazil · 145 kmHigh 19.2°C · Low 11.3°C · 100 mm rain
- Uruguaiana in MayBrazil · 195 kmHigh 20.7°C · Low 13.1°C · 115 mm rain
- Santa Maria in MayBrazil · 216 kmHigh 20.3°C · Low 11.6°C · 127 mm rain
- Concordia in MayArgentina · 241 kmHigh 19.7°C · Low 12.1°C · 104 mm rain
- Cachoeira do Sul in MayBrazil · 272 kmHigh 20.6°C · Low 12.3°C · 120 mm rain
- Paysandú in MayUruguay · 286 kmHigh 19.2°C · Low 11.1°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 Rivera) is explained once on the Rivera year overview and on the Sources, method and limits page.
Sant'Ana do Livramento lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.