Río Cuarto weather in December
In December, Río Cuarto has daytime highs averaging 28 °C, nights around 18 °C, with 10 wet days. Figures are 1991–2020 climate normals.
- 28.3°C Average high
- 17.8°C Average low
- 10days Wet days
- 106mm Rainfall
- 14h Daylight
Daily temperatures through December
How December develops
Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.
| Days | Avg high | Avg low | Chance of rain |
|---|---|---|---|
| 1–10 December | 27.3 °C | 16.6 °C | 35 % |
| 11–20 December | 28.4 °C | 17.8 °C | 34 % |
| 21–31 December | 29.2 °C | 18.8 °C | 31 % |
- Average highs rise from 27.3 °C early in December to 29.2 °C by the end of it.
What to expect
| Measure | Typical December | Share of the month |
|---|---|---|
| Days above 25 °C | 25 of 31 | 82 % |
| Days above 30 °C | 10 of 31 | 33 % |
| Days below 0 °C | 0 of 31 | 0 % |
| Days with more than 1 mm rain | 10 of 31 | 33 % |
Conditions in December
| Measure | Average |
|---|---|
| Mean temperature | 23 °C |
| Record high (1991–2020) | 40 °C |
| Record low (1991–2020) | 8.7 °C |
| Relative humidity | 59 % |
| Wind speed | 18 km/h |
| Cloud cover | 41 % |
December compared with the months around it
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 28.8 °C | 94 mm | 41 % |
| February | 27.1 °C | 90 mm | 41 % |
| October | 23.1 °C | 85 mm | 46 % |
| November | 26.1 °C | 87 mm | 43 % |
| December | 28.3 °C | 106 mm | 41 % |
See all twelve months for Río Cuarto
- December is the 2nd warmest month here.
- It is the 12th driest month of the year.
- It ranks 5th for least cloud cover.
- Days last about 14 hours from sunrise to sunset.
- It rains on 10 of 31 days — 33 % of the month.
- Nights are about 11 °C cooler than the middle of the day.
- The hottest December day on record since 1991 reached 40 °C, 11 °C above the usual daytime high.
QuestionsDecember in Río Cuarto, answered
How warm is Río Cuarto in December?
Daily highs average 28 °C and nights fall to about 18 °C, a spread of 11 °C between afternoon and dawn. That makes December the 2nd warmest month of the year here.
Does it rain much in Río Cuarto in December?
December averages 106 mm of rain, spread over about 10 of the 31 days — 33 % of the month. Cloud cover averages 41 % of the sky.
How long are the days in December?
Río Cuarto averages 14 hours between sunrise and sunset in December. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.