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Weather & Climate in San Isidro, Argentina
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Isidro enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 70°F in January while summers reach 50°F in July / relatively mild seasonal variation. The area gets 339 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 49.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,699 feet.
Temperature
70°F Jan (21°C)
50°F Jul (10°C)
| Annual Average | 64.1°F |
| 19% above US avg | |
| January Average | 70°F (21°C) |
| July Average | 50°F (10°C) |
| Sunny Days | 339 days/yr |
Geography
| Elevation | 1,699 ft (518 m) |
| Area | 154.1 sq mi (399.0 km²) |
| Population Density | 0/sq mi |
| Coordinates | -28.4578°N, 65.7250°W |
| Timezone | America/Argentina/Catamarca |
Precipitation & Snow
Air Quality
Earthquake History
249 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 | 17 km | 22 km |
| May 28, 2002 | 39 km S of Arauco, Argentina | M6.0 | 117 km | 22 km |
| May 25, 1999 | 31 km SE of Londres, Argentina | M5.8 | 132 km | 169 km |
| Apr 3, 2009 | 39 km SW of Andalgalá, Argentina | M5.7 | 109 km | 174 km |
| May 15, 2001 | 49 km NW of Pomán, Argentina | M5.6 | 92 km | 177 km |
| Jun 17, 1997 | 29 km SSE of Termas de Río Hondo, Argentina | M5.6 | 124 km | 28 km |
| Aug 12, 2009 | 49 km SW of Andalgalá, Argentina | M5.5 | 112 km | 174 km |
| Jun 22, 1998 | 52 km SE of Londres, Argentina | M5.4 | 109 km | 174 km |
| Jul 31, 2011 | 32 km SW of Andalgalá, Argentina | M5.4 | 113 km | 170 km |
| Sep 25, 2019 | 41 km ESE of Londres, Argentina | M5.3 | 120 km | 157 km |
| Apr 6, 1997 | 33 km WSW of Capayán, Argentina | M5.3 | 78 km | 29 km |
| Jun 22, 2011 | 48 km SSW of Andalgalá, Argentina | M5.3 | 99 km | 164 km |
| Jul 7, 2000 | 55 km SSW of Andalgalá, Argentina | M5.3 | 100 km | 174 km |
| May 24, 2019 | 46 km SW of Andalgalá, Argentina | M5.2 | 110 km | 149 km |
| Jan 19, 2010 | 26 km SW of Aguilares, Argentina | M5.2 | 98 km | 27 km |
| Sep 10, 1993 | 41 km ESE of Londres, Argentina | M5.2 | 120 km | 154 km |
| Feb 20, 2013 | 23 km SSW of Andalgalá, Argentina | M5.1 | 102 km | 155 km |
| Jul 3, 2006 | 46 km SSW of Andalgalá, Argentina | M5.1 | 95 km | 166 km |
| Mar 14, 2005 | 18 km N of Huillapima, Argentina | M5.1 | 29 km | 23 km |
| May 19, 2016 | 46 km SSW of Andalgalá, Argentina | M5.1 | 90 km | 157 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 70°F (21°C) | 4.2 in | Wettest |
| February | 73°F (23°C) | 3.7 in | |
| March | 70°F (21°C) | 3.1 in | |
| April | 63°F (17°C) | 1.2 in | |
| May | 57°F (14°C) | 0.6 in | |
| June | 51°F (10°C) | 0.2 in | Driest |
| July | 50°F (10°C) | 0.2 in | Coldest |
| August | 55°F (13°C) | 0.3 in | |
| September | 62°F (16°C) | 0.4 in | |
| October | 68°F (20°C) | 1.2 in | |
| November | 72°F (22°C) | 1.9 in | |
| December | 76°F (24°C) | 2.9 in | Warmest |
San Isidro has a seasonal temperature swing of 26°F / from 50°F in July to 76°F in December. Total annual precipitation is 19.9 inches, with January being the wettest month (4.2") and June the driest (0.2").