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Weather & Climate in San Juan de Tantaranche, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Juan de Tantaranche experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 54°F in January while summers reach 52°F in July / relatively mild seasonal variation. The area gets 351 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 48.8 inches (wetter than the 38-inch national average). The area receives 239.2 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 11,266 feet.
Temperature
54°F Jan (12°C)
52°F Jul (11°C)
| Annual Average | 53.6°F |
| 1% below US avg | |
| January Average | 54°F (12°C) |
| July Average | 52°F (11°C) |
| Sunny Days | 351 days/yr |
Geography
| Elevation | 11,266 ft (3,434 m) |
| Area | 94.8 sq mi (245.5 km²) |
| Population Density | 3/sq mi |
| Coordinates | -12.1135°N, 76.1826°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
216 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M8.0.
| Aug 15, 2007 | 41 km SW of San Vicente de Cañete, Peru | M8.0 | 149 km | 39 km |
| Apr 18, 1993 | 15 km SE of Lachaqui, Peru | M6.3 | 64 km | 106 km |
| Jun 23, 2021 | 11 km WSW of Mala, Peru | M5.9 | 88 km | 50 km |
| Aug 16, 2007 | 38 km SW of San Vicente de Cañete, Peru | M5.8 | 145 km | 34 km |
| Sep 22, 2010 | 6 km ENE of Chincha Alta, Peru | M5.7 | 142 km | 50 km |
| Jun 15, 2025 | 37 km WSW of Callao, Peru | M5.6 | 137 km | 40 km |
| Oct 1, 1996 | 19 km SSW of Chilca, Peru | M5.6 | 93 km | 62 km |
| Jan 7, 2022 | 6 km NW of Cocachacra, Peru | M5.6 | 51 km | 96 km |
| Jan 23, 1990 | 4 km WSW of Cuenca, Peru | M5.6 | 127 km | 104 km |
| Aug 16, 2007 | 22 km SSW of San Vicente de Cañete, Peru | M5.6 | 131 km | 40 km |
| May 28, 2003 | 33 km SSW of Santiago de Surco, Peru | M5.6 | 112 km | 43 km |
| Nov 25, 2013 | 12 km SE of Omas, Peru | M5.5 | 54 km | 77 km |
| Dec 25, 1998 | 9 km SE of Chancay, Peru | M5.4 | 124 km | 67 km |
| May 12, 2022 | 9 km W of San Bartolo, Peru | M5.4 | 80 km | 53 km |
| Feb 17, 2005 | 7 km W of Carhuamayo, Peru | M5.4 | 132 km | 126 km |
| Mar 29, 2008 | 14 km SSW of Callao, Peru | M5.3 | 107 km | 51 km |
| Mar 18, 1999 | 21 km NNE of Huancaya, Peru | M5.3 | 53 km | 116 km |
| Nov 6, 1992 | 18 km NNW of Mucllo, Peru | M5.3 | 135 km | 14 km |
| Jun 3, 2014 | 20 km W of Chilca, Peru | M5.2 | 92 km | 36 km |
| Aug 1, 2009 | 8 km SSW of Chambara, Peru | M5.2 | 84 km | 101 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
7 tsunamis recorded within 500 km. Highest wave on record: 30.0 m (98 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1971 | CHUNGAR | Meteorological | 30.0 m | 600 | 116 km |
| 1746 | CENTRAL PERU | Earthquake | 24.0 m | 5,941 | 111 km |
| 2007 | S. PERU | Earthquake | 10.1 m | 596 | 149 km |
| 1865 | CENTRAL PERU | Earthquake | 2.0 m | 5 | 101 km |
| 1806 | CENTRAL PERU | Earthquake | 1.0 m | — | 100 km |
| 1878 | CENTRAL PERU | Unknown | — | 5 | 90 km |
| 1860 | CENTRAL PERU | Earthquake | — | — | 100 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 54°F (12°C) | 4.3 in | Warmest |
| February | 44°F (7°C) | 5.2 in | |
| March | 44°F (7°C) | 5.6 in | Wettest |
| April | 43°F (6°C) | 2.0 in | |
| May | 41°F (5°C) | 0.3 in | |
| June | 39°F (4°C) | 0.1 in | Driest |
| July | 52°F (11°C) | 0.1 in | |
| August | 39°F (4°C) | 0.2 in | Coldest |
| September | 40°F (5°C) | 0.6 in | |
| October | 42°F (6°C) | 1.5 in | |
| November | 43°F (6°C) | 1.6 in | |
| December | 44°F (6°C) | 3.2 in |
San Juan de Tantaranche has a seasonal temperature swing of 15°F / from 39°F in August to 54°F in January. Total annual precipitation is 24.7 inches, with March being the wettest month (5.6") and June the driest (0.1").