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Weather & Climate in La Rioja, Argentina
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
La Rioja enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 77°F in January while summers reach 49°F in July / relatively mild seasonal variation. The area gets 312 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 13.1 inches (drier than the 38-inch national average). The city sits at an elevation of 1,617 feet.
Temperature
77°F Jan (25°C)
49°F Jul (9°C)
| Annual Average | 63.9°F |
| 18% above US avg | |
| January Average | 77°F (25°C) |
| July Average | 49°F (9°C) |
| Sunny Days | 312 days/yr |
Geography
| Elevation | 1,617 ft (493 m) |
| Area | 5.3 sq mi (13.6 km²) |
| Population Density | 33,942/sq mi |
| Coordinates | -29.4133°N, 66.8564°W |
| Timezone | America/Argentina/La_Rioja |
Precipitation & Snow
Air Quality
Earthquake History
230 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.4.
| Sep 7, 2004 | 12 km SSW of San Fernando del Valle de Catamarca, Argentina | M6.4 | 136 km | 22 km |
| May 28, 2002 | 39 km S of Arauco, Argentina | M6.0 | 53 km | 22 km |
| Apr 21, 2001 | 6 km NNW of Chilecito, Argentina | M5.8 | 73 km | 128 km |
| Jul 8, 2006 | 57 km SSE of Tinogasta, Argentina | M5.5 | 108 km | 140 km |
| Mar 5, 2020 | 39 km S of Tinogasta, Argentina | M5.5 | 127 km | 106 km |
| Apr 15, 2004 | 55 km N of San Agustín de Valle Fértil, Argentina | M5.4 | 98 km | 29 km |
| Mar 31, 2001 | 72 km S of Vinchina, Argentina | M5.4 | 143 km | 104 km |
| May 1, 2025 | 56 km S of Tinogasta, Argentina | M5.4 | 111 km | 11 km |
| Apr 6, 1997 | 33 km WSW of Capayán, Argentina | M5.3 | 77 km | 29 km |
| Mar 14, 2005 | 18 km N of Huillapima, Argentina | M5.1 | 126 km | 23 km |
| Jul 9, 2011 | 45 km N of Chilecito, Argentina | M5.0 | 92 km | 99 km |
| Aug 6, 1996 | 60 km S of Tinogasta, Argentina | M5.0 | 111 km | 33 km |
| Aug 30, 1998 | 52 km ENE of La Rioja, Argentina | M4.9 | 53 km | 33 km |
| Aug 22, 2025 | 40 km N of San Agustín de Valle Fértil, Argentina | M4.9 | 109 km | 31 km |
| Oct 15, 2009 | 36 km SW of Villa Bustos, Argentina | M4.9 | 46 km | 124 km |
| Apr 19, 2007 | 31 km SSW of Tinogasta, Argentina | M4.9 | 143 km | 133 km |
| Aug 13, 1990 | 23 km S of Capayán, Argentina | M4.9 | 90 km | 22 km |
| Feb 26, 2018 | 36 km SSE of Tinogasta, Argentina | M4.9 | 130 km | 120 km |
| Jan 15, 2016 | 43 km NE of Vinchina, Argentina | M4.9 | 148 km | 26 km |
| Apr 13, 2020 | 49 km W of Chilecito, Argentina | M4.8 | 112 km | 107 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 77°F (25°C) | 3.0 in | Warmest, Wettest |
| February | 74°F (23°C) | 2.7 in | |
| March | 70°F (21°C) | 2.1 in | |
| April | 63°F (17°C) | 0.7 in | |
| May | 56°F (13°C) | 0.3 in | |
| June | 50°F (10°C) | 0.1 in | Driest |
| July | 49°F (9°C) | 0.1 in | Coldest |
| August | 54°F (12°C) | 0.2 in | |
| September | 60°F (15°C) | 0.4 in | |
| October | 67°F (20°C) | 0.6 in | |
| November | 72°F (22°C) | 1.1 in | |
| December | 76°F (25°C) | 1.9 in |
La Rioja has a seasonal temperature swing of 28°F / from 49°F in July to 77°F in January. Total annual precipitation is 13.1 inches, with January being the wettest month (3.0") and June the driest (0.1").