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Weather & Climate in Mariatana, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mariatana enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 70°F in January while summers reach 68°F in July / relatively mild seasonal variation. The area gets 363 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 12.6 inches (drier than the 38-inch national average). The city sits at an elevation of 11,640 feet.
Temperature
70°F Jan (21°C)
68°F Jul (20°C)
| Annual Average | 69.3°F |
| 28% above US avg | |
| January Average | 70°F (21°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 363 days/yr |
Geography
| Elevation | 11,640 ft (3,548 m) |
| Area | 94.8 sq mi (245.5 km²) |
| Population Density | 3/sq mi |
| Coordinates | -12.2500°N, 76.3333°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
254 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 | 130 km | 39 km |
| Apr 18, 1993 | 15 km SE of Lachaqui, Peru | M6.3 | 70 km | 106 km |
| Jun 23, 2021 | 11 km WSW of Mala, Peru | M5.9 | 66 km | 50 km |
| Aug 16, 2007 | 38 km SW of San Vicente de Cañete, Peru | M5.8 | 126 km | 34 km |
| Sep 22, 2010 | 6 km ENE of Chincha Alta, Peru | M5.7 | 130 km | 50 km |
| May 8, 2003 | 90 km WSW of Chilca, Peru | M5.7 | 142 km | 33 km |
| Jan 23, 1990 | 4 km WSW of Cuenca, Peru | M5.6 | 139 km | 104 km |
| Apr 21, 2001 | 51 km WNW of Pisco, Peru | M5.6 | 149 km | 39 km |
| Aug 16, 2007 | 22 km SSW of San Vicente de Cañete, Peru | M5.6 | 113 km | 40 km |
| Jan 7, 2022 | 6 km NW of Cocachacra, Peru | M5.6 | 50 km | 96 km |
| Jun 15, 2025 | 37 km WSW of Callao, Peru | M5.6 | 121 km | 40 km |
| Oct 1, 1996 | 19 km SSW of Chilca, Peru | M5.6 | 71 km | 62 km |
| May 28, 2003 | 33 km SSW of Santiago de Surco, Peru | M5.6 | 93 km | 43 km |
| Nov 25, 2013 | 12 km SE of Omas, Peru | M5.5 | 41 km | 77 km |
| Dec 25, 1998 | 9 km SE of Chancay, Peru | M5.4 | 118 km | 67 km |
| May 12, 2022 | 9 km W of San Bartolo, Peru | M5.4 | 60 km | 53 km |
| Feb 17, 2005 | 7 km W of Carhuamayo, Peru | M5.4 | 149 km | 126 km |
| Jun 15, 2009 | 11 km N of San Clemente, Peru | M5.4 | 148 km | 42 km |
| Mar 29, 2008 | 14 km SSW of Callao, Peru | M5.3 | 91 km | 51 km |
| Mar 18, 1999 | 21 km NNE of Huancaya, Peru | M5.3 | 73 km | 116 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
9 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 | 126 km |
| 1586 | CENTRAL PERU | Earthquake | 26.0 m | 22 | 149 km |
| 1746 | CENTRAL PERU | Earthquake | 24.0 m | 5,941 | 98 km |
| 2007 | S. PERU | Earthquake | 10.1 m | 596 | 130 km |
| 1865 | CENTRAL PERU | Earthquake | 2.0 m | 5 | 88 km |
| 1806 | CENTRAL PERU | Earthquake | 1.0 m | — | 85 km |
| 1878 | CENTRAL PERU | Unknown | — | 5 | 78 km |
| 1860 | CENTRAL PERU | Earthquake | — | — | 85 km |
| 1687 | S. PERU | Earthquake | — | 5,000 | 140 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 70°F (21°C) | 2.8 in | Warmest |
| February | 53°F (12°C) | 3.9 in | |
| March | 52°F (11°C) | 4.3 in | Wettest |
| April | 52°F (11°C) | 1.1 in | |
| May | 49°F (10°C) | 0.1 in | |
| June | 47°F (8°C) | 0.0 in | Coldest, Driest |
| July | 68°F (20°C) | 0.0 in | |
| August | 47°F (8°C) | 0.0 in | |
| September | 49°F (9°C) | 0.2 in | |
| October | 51°F (10°C) | 0.5 in | |
| November | 51°F (11°C) | 0.6 in | |
| December | 52°F (11°C) | 1.8 in |
Mariatana has a seasonal temperature swing of 23°F / from 47°F in June to 70°F in January. Total annual precipitation is 15.5 inches, with March being the wettest month (4.3") and June the driest (0.0").