Climate averages 1991–2020
Alegrete weather
in December.
A hot, wet month: the 2nd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Alegrete: daytime highs average 29.5°C and nights cool to about 19.3°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 136 mm of rain on roughly 10 days, which makes December a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 01 min on an average December day.
The nearest other city in this atlas is Uruguaiana (125 km away). In December its highs average 29.8°C, about as warm as Alegrete, with 136 mm of rain.
Among the 448 cities listed in Brazil, Alegrete ranks joint 137th of 448 for the warmest December highs and joint 124th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Alegrete is 1.1°C warmer than that mean.
From December to January, average highs rise by 0.8°C to 30.3°C, and monthly rainfall rises from 136 mm to 143 mm.
The annual picture
December 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
Alegrete climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.3°C20.8°C | 20.8°C | 143 | 11.7 | 13.814 h |
| February | 29.4°C20.4°C | 20.4°C | 134 | 10.8 | 13.113 h |
| March | 27.9°C18.7°C | 18.7°C | 123 | 9.7 | 12.312 h |
| April | 24.6°C15.7°C | 15.7°C | 162 | 9.5 | 11.411 h |
| May | 20.6°C12.4°C | 12.4°C | 121 | 8.3 | 10.611 h |
| June | 18.5°C10.4°C | 10.4°C | 134 | 9.5 | 10.310 h |
| July | 17.9°C9.3°C | 9.3°C | 124 | 9.0 | 10.410 h |
| August | 20.4°C10.6°C | 10.6°C | 109 | 8.4 | 11.011 h |
| September | 21.7°C12.1°C | 12.1°C | 155 | 9.5 | 11.912 h |
| October | 24.2°C14.7°C | 14.7°C | 211 | 11.4 | 12.813 h |
| November | 26.8°C16.5°C | 16.5°C | 142 | 9.1 | 13.614 h |
| December, selected | 29.5°C19.3°C | 19.3°C | 136 | 9.7 | 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
December in nearby cities
- Uruguaiana in DecemberBrazil · 125 kmHigh 29.8°C · Low 20.1°C · 136 mm rain
- Sant'Ana do Livramento in DecemberBrazil · 126 kmHigh 28.1°C · Low 17.6°C · 117 mm rain
- Rivera in DecemberUruguay · 127 kmHigh 28.2°C · Low 17.9°C · 117 mm rain
- Santa Maria in DecemberBrazil · 192 kmHigh 28.6°C · Low 18.2°C · 158 mm rain
- Santo Ângelo in DecemberBrazil · 222 kmHigh 29.2°C · Low 19.4°C · 178 mm rain
- Bagé in DecemberBrazil · 236 kmHigh 27.5°C · Low 17.1°C · 117 mm rain
- Ijuí in DecemberBrazil · 239 kmHigh 28.8°C · Low 19.0°C · 178 mm rain
- Santa Rosa, Brazil in DecemberBrazil · 248 kmHigh 29.5°C · Low 20.1°C · 160 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 Alegrete) is explained once on the Alegrete year overview and on the Sources, method and limits page.