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Weather & Climate in San Antonio, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Antonio has a cool climate with an average annual temperature of 40°F (4°C). Winters average 38°F in January while summers reach 41°F in July / relatively mild seasonal variation. The area gets 353 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 56.9 inches (wetter than the 38-inch national average). The area receives 66.8 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 11,325 feet.
Temperature
38°F Jan (3°C)
41°F Jul (5°C)
| Annual Average | 39.5°F |
| 27% below US avg | |
| January Average | 38°F (3°C) |
| July Average | 41°F (5°C) |
| Sunny Days | 353 days/yr |
Geography
| Elevation | 11,325 ft (3,452 m) |
| Area | 140.4 sq mi (363.5 km²) |
| Population Density | 2/sq mi |
| Coordinates | -14.1697°N, 72.6231°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
345 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.0.
| Jul 6, 1991 | 15 km W of Lares, Peru | M7.0 | 127 km | 105 km |
| Aug 24, 2014 | 38 km NW of Aniso, Peru | M6.8 | 113 km | 101 km |
| Jul 26, 2005 | 9 km SSW of Toro, Peru | M5.9 | 136 km | 111 km |
| Nov 27, 1999 | 10 km S of Langui, Peru | M5.9 | 149 km | 126 km |
| May 21, 2013 | 17 km S of Chinchaypujio, Peru | M5.8 | 58 km | 92 km |
| Dec 4, 2001 | 20 km WSW of Orcopampa, Peru | M5.8 | 132 km | 33 km |
| Aug 9, 2001 | 7 km WSW of Turpay, Peru | M5.8 | 12 km | 33 km |
| Dec 8, 2001 | 3 km NE of Alca, Peru | M5.6 | 106 km | 26 km |
| May 24, 2003 | 10 km W of Pichigua, Peru | M5.6 | 132 km | 144 km |
| Sep 12, 1998 | 0 km SE of Turpay, Peru | M5.6 | 7 km | 91 km |
| Jul 29, 1991 | 8 km SW of Huacaña, Peru | M5.5 | 143 km | 96 km |
| Apr 21, 2012 | 5 km ESE of Coporaque, Peru | M5.4 | 143 km | 111 km |
| Mar 7, 2025 | 12 km NNW of Cayarani, Peru | M5.4 | 76 km | 114 km |
| Dec 20, 1999 | 33 km ENE of Chichas, Peru | M5.4 | 145 km | 109 km |
| Aug 10, 2001 | 11 km SSW of Turpay, Peru | M5.4 | 18 km | 33 km |
| Oct 24, 2000 | 13 km SE of Alca, Peru | M5.4 | 118 km | 107 km |
| May 16, 2017 | 25 km WSW of Cotaruse, Peru | M5.4 | 94 km | 10 km |
| May 27, 1998 | central Peru | M5.3 | 30 km | 96 km |
| Jan 13, 1998 | 11 km ESE of Umamarca, Peru | M5.3 | 92 km | 94 km |
| Oct 15, 2002 | 7 km W of Pataypampa, Peru | M5.3 | 13 km | 87 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Quimsachata (137 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Quimsachata | Lava dome | 3,693 m (12,116 ft) | -4450 | 137 km |
| Andahua-Orcopampa | Pyroclastic cone(s) | 4,713 m (15,463 ft) | 1490 | 143 km |
| Huambo | Volcanic field | 4,550 m (14,928 ft) | -700 | 192 km |
| Sabancaya | Stratovolcano(es) | 5,960 m (19,554 ft) | 2020 | 198 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (3°C) | 7.6 in | Coldest, Wettest |
| February | 46°F (8°C) | 7.4 in | |
| March | 46°F (8°C) | 7.2 in | |
| April | 45°F (7°C) | 2.4 in | |
| May | 43°F (6°C) | 0.6 in | |
| June | 41°F (5°C) | 0.2 in | Driest |
| July | 41°F (5°C) | 0.3 in | |
| August | 41°F (5°C) | 0.4 in | |
| September | 44°F (7°C) | 1.3 in | |
| October | 46°F (8°C) | 1.5 in | |
| November | 46°F (8°C) | 2.5 in | |
| December | 46°F (8°C) | 4.3 in | Warmest |
San Antonio has a seasonal temperature swing of 9°F / from 38°F in January to 46°F in December. Total annual precipitation is 35.8 inches, with January being the wettest month (7.6") and June the driest (0.2").