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Weather & Climate in San Juan, Bolivia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Juan enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 53°F in January while summers reach 52°F in July / relatively mild seasonal variation. The area gets 361 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 19.0 inches (drier than the 38-inch national average). The city sits at an elevation of 8,983 feet.
Temperature
53°F Jan (12°C)
52°F Jul (11°C)
| Annual Average | 60.0°F |
| 11% above US avg | |
| January Average | 53°F (12°C) |
| July Average | 52°F (11°C) |
| Sunny Days | 361 days/yr |
Geography
| Elevation | 8,983 ft (2,738 m) |
| Area | 2,502.1 sq mi (6,480.4 km²) |
| Population Density | 0/sq mi |
| Coordinates | -21.2667°N, 65.3000°W |
| Timezone | America/La_Paz |
Precipitation & Snow
Air Quality
Earthquake History
215 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.
| Jan 23, 1997 | 16 km NW of Villazón, Bolivia | M7.1 | 92 km | 276 km |
| Jul 21, 2007 | 19 km WSW of La Quiaca, Argentina | M6.4 | 110 km | 290 km |
| Aug 4, 2016 | 49 km WSW of La Quiaca, Argentina | M6.2 | 139 km | 270 km |
| Mar 17, 2004 | 38 km NNE of Tupiza, Bolivia | M6.1 | 34 km | 290 km |
| Oct 19, 1993 | 47 km NW of Abra Pampa, Argentina | M6.0 | 142 km | 272 km |
| Jul 27, 2003 | 56 km N of Camargo, Bolivia | M6.0 | 127 km | 345 km |
| Aug 21, 2024 | 29 km W of La Quiaca, Argentina | M5.5 | 114 km | 258 km |
| Nov 29, 2009 | 18 km NW of Villazón, Bolivia | M5.4 | 89 km | 276 km |
| Apr 13, 2016 | 26 km W of Atocha, Bolivia | M5.3 | 128 km | 221 km |
| Jan 26, 2020 | 32 km WNW of Villazón, Bolivia | M5.3 | 102 km | 267 km |
| Jan 7, 2011 | 42 km NE of Villazón, Bolivia | M5.1 | 58 km | 290 km |
| Jun 25, 2001 | 29 km SW of Entre Ríos, Bolivia | M5.1 | 111 km | 33 km |
| Apr 3, 2023 | 70 km SW of Atocha, Bolivia | M5.1 | 146 km | 218 km |
| Jan 28, 2012 | 62 km SSW of Atocha, Bolivia | M5.1 | 120 km | 197 km |
| May 29, 2025 | 68 km SW of Atocha, Bolivia | M4.9 | 146 km | 218 km |
| Aug 9, 2023 | 30 km WNW of Villazón, Bolivia | M4.9 | 98 km | 255 km |
| Sep 26, 2017 | 53 km SW of Atocha, Bolivia | M4.9 | 131 km | 228 km |
| Apr 14, 2022 | 42 km WNW of Villazón, Bolivia | M4.9 | 109 km | 256 km |
| Jul 5, 2000 | 85 km SSW of Atocha, Bolivia | M4.8 | 137 km | 234 km |
| Mar 16, 1994 | 44 km NW of Abra Pampa, Argentina | M4.8 | 141 km | 274 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 3.9 in | Wettest |
| February | 64°F (18°C) | 3.5 in | |
| March | 64°F (18°C) | 2.5 in | |
| April | 61°F (16°C) | 0.8 in | |
| May | 56°F (13°C) | 0.2 in | |
| June | 52°F (11°C) | 0.1 in | Coldest, Driest |
| July | 52°F (11°C) | 0.1 in | |
| August | 55°F (13°C) | 0.1 in | |
| September | 59°F (15°C) | 0.3 in | |
| October | 63°F (17°C) | 0.7 in | |
| November | 65°F (18°C) | 1.6 in | |
| December | 65°F (19°C) | 3.6 in | Warmest |
San Juan has a seasonal temperature swing of 14°F / from 52°F in June to 65°F in December. Total annual precipitation is 17.4 inches, with January being the wettest month (3.9") and June the driest (0.1").