Climate averages 1991–2020
Río Cuarto weather
in December.
A hot, wet month: the 2nd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Río Cuarto: daytime highs average 28.3°C and nights cool to about 17.9°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 107 mm of rain on roughly 11 days, which makes December a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 17 min on an average December day.
The nearest other city in this atlas is Villa Mercedes, Argentina (119 km away). In December its highs average 28.8°C, 0.5°C warmer than Río Cuarto, with 96 mm of rain.
Among the 67 cities listed in Argentina, Río Cuarto ranks joint 32nd of 67 for the warmest December highs and joint 46th of 67 for the driest December (rainfall, lowest first). The mean December high of those 67 cities is 27.9°C; Río Cuarto is 0.4°C warmer than that mean.
From December to January, average highs rise by 0.5°C to 28.8°C, and monthly rainfall falls from 107 mm to 96 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
Río Cuarto climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.8°C19.0°C | 19.0°C | 96 | 10.3 | 14.114 h |
| February | 27.1°C17.8°C | 17.8°C | 89 | 8.7 | 13.313 h |
| March | 25.4°C16.3°C | 16.3°C | 88 | 9.4 | 12.312 h |
| April | 21.9°C12.8°C | 12.8°C | 67 | 7.1 | 11.311 h |
| May | 18.3°C9.4°C | 9.4°C | 34 | 4.8 | 10.410 h |
| June | 15.6°C6.1°C | 6.1°C | 14 | 2.5 | 10.010 h |
| July | 14.8°C4.9°C | 4.9°C | 11 | 2.4 | 10.210 h |
| August | 17.8°C6.8°C | 6.8°C | 20 | 2.7 | 10.911 h |
| September | 20.3°C9.3°C | 9.3°C | 39 | 4.9 | 11.912 h |
| October | 23.0°C12.5°C | 12.5°C | 84 | 9.4 | 12.913 h |
| November | 26.1°C15.4°C | 15.4°C | 88 | 10.3 | 13.814 h |
| December, selected | 28.3°C17.9°C | 17.9°C | 107 | 10.7 | 14.314 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
- Villa Mercedes, Argentina in DecemberArgentina · 119 kmHigh 28.8°C · Low 17.6°C · 96 mm rain
- Villa María in DecemberArgentina · 131 kmHigh 29.1°C · Low 18.9°C · 125 mm rain
- San Luis in DecemberArgentina · 184 kmHigh 28.9°C · Low 18.0°C · 101 mm rain
- Córdoba in DecemberArgentina · 192 kmHigh 28.4°C · Low 17.7°C · 131 mm rain
- Venado Tuerto in DecemberArgentina · 232 kmHigh 28.3°C · Low 17.9°C · 115 mm rain
- Rafaela in DecemberArgentina · 341 kmHigh 29.2°C · Low 18.9°C · 129 mm rain
- Gobernador Gálvez in DecemberArgentina · 346 kmHigh 28.7°C · Low 18.6°C · 104 mm rain
- Rosario in DecemberArgentina · 347 kmHigh 28.8°C · Low 18.5°C · 104 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 Río Cuarto) is explained once on the Río Cuarto year overview and on the Sources, method and limits page.