Climate averages 1991–2020
Caxias do Sul weather
in December.
A warm, very wet month: the joint 2nd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Caxias do Sul: daytime highs average 24.7°C and nights cool to about 15.2°C. By daytime temperature it is the joint 2nd warmest of the 12 months.
Expect about 188 mm of rain on roughly 16 days, which makes December a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 58 min on an average December day.
The nearest other city in this atlas is Farroupilha (18 km away). In December its highs average 24.9°C, about as warm as Caxias do Sul, with 188 mm of rain.
Among the 448 cities listed in Brazil, Caxias do Sul ranks joint 431st of 448 for the warmest December highs and joint 225th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Caxias do Sul is 3.8°C cooler than that mean.
From December to January, average highs rise by 0.5°C to 25.2°C, and monthly rainfall rises from 188 mm to 208 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
Caxias do Sul climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.2°C16.5°C | 16.5°C | 208 | 18.3 | 13.814 h |
| February | 24.7°C16.3°C | 16.3°C | 186 | 17.6 | 13.113 h |
| March | 23.6°C15.2°C | 15.2°C | 155 | 15.1 | 12.312 h |
| April | 21.1°C12.7°C | 12.7°C | 138 | 11.5 | 11.411 h |
| May | 17.6°C9.6°C | 9.6°C | 140 | 10.8 | 10.711 h |
| June | 16.2°C7.9°C | 7.9°C | 139 | 10.7 | 10.310 h |
| July | 15.8°C7.0°C | 7.0°C | 175 | 11.1 | 10.510 h |
| August | 18.1°C8.3°C | 8.3°C | 140 | 10.9 | 11.111 h |
| September | 19.2°C9.6°C | 9.6°C | 173 | 13.1 | 11.912 h |
| October | 21.1°C11.9°C | 11.9°C | 215 | 14.9 | 12.813 h |
| November | 22.6°C13.0°C | 13.0°C | 163 | 13.7 | 13.614 h |
| December, selected | 24.7°C15.2°C | 15.2°C | 188 | 15.7 | 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
- Farroupilha in DecemberBrazil · 18 kmHigh 24.9°C · Low 15.4°C · 188 mm rain
- Bento Gonçalves in DecemberBrazil · 33 kmHigh 25.6°C · Low 15.8°C · 189 mm rain
- Sapiranga in DecemberBrazil · 55 kmHigh 28.3°C · Low 18.6°C · 141 mm rain
- Novo Hamburgo in DecemberBrazil · 57 kmHigh 27.9°C · Low 18.1°C · 145 mm rain
- São Leopoldo in DecemberBrazil · 66 kmHigh 28.2°C · Low 18.8°C · 145 mm rain
- Lajeado in DecemberBrazil · 83 kmHigh 28.3°C · Low 18.3°C · 166 mm rain
- Canoas in DecemberBrazil · 83 kmHigh 28.4°C · Low 19.1°C · 124 mm rain
- Gravataí in DecemberBrazil · 88 kmHigh 28.1°C · Low 18.9°C · 129 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 Caxias do Sul) is explained once on the Caxias do Sul year overview and on the Sources, method and limits page.
Farroupilha lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.