Río Cuarto climate
Río Cuarto (Argentina) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 17 °C62 °F, and about 811 mm32 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Río Cuarto climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 3289 | 1661 | 2475 | 1305.1 | 0 |
| Feb | 3085 | 1560 | 2373 | 1114.4 | 0 |
| Mar | 2781 | 1356 | 2069 | 1014.0 | 0 |
| Apr | 2373 | 1050 | 1662 | 692.7 | 0 |
| May | 1965 | 643 | 1254 | 281.1 | 1 |
| Jun | 1661 | 337 | 949 | 70.3 | 3 |
| Jul | 1660 | 236 | 948 | 100.4 | 6 |
| Aug | 1966 | 439 | 1152 | 150.6 | 3 |
| Sep | 2271 | 643 | 1457 | 341.3 | 1 |
| Oct | 2578 | 1050 | 1864 | 783.1 | 0 |
| Nov | 2984 | 1355 | 2169 | 1124.4 | 0 |
| Dec | 3188 | 1559 | 2373 | 1164.6 | 0 |
| Year | 3289 | 236 | 1762 | 81132 | 14 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 61% | 47% | 7.3 | 14:07 |
| Feb | 67% | 49% | 6.4 | 13:19 |
| Mar | 69% | 42% | 5.3 | 12:23 |
| Apr | 73% | 46% | 3.9 | 11:18 |
| May | 76% | 57% | 2.9 | 10:26 |
| Jun | 73% | 48% | 2.6 | 9:58 |
| Jul | 69% | 51% | 2.8 | 10:10 |
| Aug | 61% | 47% | 3.8 | 10:55 |
| Sep | 57% | 46% | 4.9 | 11:56 |
| Oct | 58% | 50% | 5.8 | 12:59 |
| Nov | 57% | 46% | 7.0 | 13:53 |
| Dec | 58% | 47% | 7.5 | 14:20 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Río Cuarto is like
The warmest month is January, with an average high of 32 °C89 °F and a low of 16 °C61 °F. The coldest is July, when highs average 16 °C60 °F and lows 2 °C36 °F. There is a clear seasonal cycle, with 15.1 °C27.2 °F between the average temperature of the warmest and the coolest month.
Annual precipitation is moderate at about 811 mm32 in. The wettest three-month stretch is November–January, which brings 44% of the annual total. Months with less than 20 mm0.8 in on average: June–August. The wettest month is January (130 mm5.1 in), the driest is June (7 mm0.3 in).
Relative humidity ranges from 57% in November to 76% in May. The clearest skies (lowest average cloud amount, 42%) are typical of March. Average wind speed near the ground ranges from 0 km/h (0 mph) in February to 2 km/h (1 mph) in August. Daylight lasts from about 10.0 hours in June to 14.3 hours in December.
Best time to visit Río Cuarto
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April and May and September and October: average highs of 19 °C65 °F to 25 °C78 °F with 28 mm1.1 in to 78 mm3.1 in of precipitation per month.
The most challenging month is January, which is hot, with average highs of 32 °C89 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Río Cuarto
- Summer (December–February) — highs 3085 to 32 °C89 °F, lows 1559 to 16 °C61 °F, about 119 mm4.7 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Autumn (March–May) — highs 1965 to 27 °C81 °F, lows 643 to 13 °C56 °F, about 66 mm2.6 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Winter (June–August) — highs 1660 to 19 °C66 °F, lows 236 to 4 °C39 °F, about 11 mm0.4 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Spring (September–November) — highs 2271 to 29 °C84 °F, lows 643 to 13 °C55 °F, about 75 mm2.9 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How Río Cuarto compares
Compared with San Luis, about 184 km to the west, Río Cuarto has practically the same average temperature and receives 17% more precipitation (811 mm32 in vs 694 mm27 in). The difference is largest in February (0.7 °C1.3 °F cooler).
Of the 31 places in Argentina covered by World Climates, Río Cuarto is the 21st warmest by annual mean temperature and the 17th wettest by annual precipitation. See all of them on the Argentina climate page.
Places in other countries with the most similar temperature and rainfall pattern: Queenstown (South Africa, Cfb), Botshabelo (South Africa, BSk) and Maseru (Lesotho, Cwa).
Nearby places
- San Luis 184 km · 17 °C62 °F · 694 mm27 in
- Córdoba 192 km · 19 °C66 °F · 799 mm31 in
- Rosario 347 km · 18 °C64 °F · 1,091 mm43 in
- Santa Fe 380 km · 19 °C67 °F · 1,153 mm45 in
- San Nicolás de los Arroyos 386 km · 17 °C63 °F · 1,178 mm46 in
- Santa Rosa 388 km · 16 °C61 °F · 743 mm29 in
- San Rafael 403 km · 17 °C62 °F · 410 mm16 in
- Mendoza 420 km · 17 °C63 °F · 290 mm11 in
Frequently asked questions
What is the warmest month in Río Cuarto?
January is the warmest month in Río Cuarto, with an average high of 32 °C (89 °F) and an average low of 16 °C (61 °F).
What is the coldest month in Río Cuarto?
July is the coldest month, with an average high of 16 °C (60 °F) and an average low of 2 °C (36 °F).
When does it rain the most in Río Cuarto?
January is the wettest month with about 130 mm (5.1 in) of precipitation; June is the driest with about 7 mm (0.3 in).
What is the best time to visit Río Cuarto?
Judging by long-term averages, the most comfortable months are April and May and September and October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 491 m, while Río Cuarto lies at about 429 m. Temperatures on this page were therefore adjusted by +0.4 °C0.7 °F using the standard lapse rate of 6.5 °C per 1,000 m.