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Weather & Climate in Acos, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Acos has a warm climate with an average annual temperature of 71°F (21°C). Winters average 72°F in January while summers reach 69°F in July / relatively mild seasonal variation. The area gets 362 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 11.9 inches (drier than the 38-inch national average). The city sits at an elevation of 5,121 feet.
Temperature
72°F Jan (22°C)
69°F Jul (21°C)
| Annual Average | 70.6°F |
| 31% above US avg | |
| January Average | 72°F (22°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 362 days/yr |
Geography
| Elevation | 5,121 ft (1,561 m) |
| Area | 590.0 sq mi (1,528.0 km²) |
| Population Density | 1/sq mi |
| Coordinates | -11.2741°N, 76.8206°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
175 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.
| Apr 18, 1993 | 15 km SE of Lachaqui, Peru | M6.3 | 53 km | 106 km |
| Apr 29, 1991 | 18 km SSW of Huacho, Peru | M5.9 | 93 km | 58 km |
| Jun 15, 2025 | 37 km WSW of Callao, Peru | M5.6 | 121 km | 40 km |
| Oct 4, 1999 | 21 km ENE of Paucartambo, Peru | M5.6 | 145 km | 33 km |
| Jun 21, 1995 | 28 km W of Chancay, Peru | M5.6 | 83 km | 71 km |
| May 28, 2003 | 33 km SSW of Santiago de Surco, Peru | M5.6 | 130 km | 43 km |
| Jan 7, 2022 | 6 km NW of Cocachacra, Peru | M5.6 | 71 km | 96 km |
| May 12, 2022 | 9 km W of San Bartolo, Peru | M5.4 | 123 km | 53 km |
| Feb 17, 2005 | 7 km W of Carhuamayo, Peru | M5.4 | 88 km | 126 km |
| Dec 25, 1998 | 9 km SE of Chancay, Peru | M5.4 | 59 km | 67 km |
| Mar 18, 1999 | 21 km NNE of Huancaya, Peru | M5.3 | 149 km | 116 km |
| Mar 29, 2008 | 14 km SSW of Callao, Peru | M5.3 | 107 km | 51 km |
| Jun 3, 2014 | 20 km W of Chilca, Peru | M5.2 | 138 km | 36 km |
| Mar 20, 1998 | 54 km W of Callao, Peru | M5.2 | 128 km | 49 km |
| Jul 18, 2016 | 17 km SW of Caleta de Carquín, Peru | M5.2 | 100 km | 75 km |
| Feb 15, 2024 | 13 km NW of Chancay, Peru | M5.2 | 63 km | 67 km |
| Mar 31, 2022 | 40 km W of Caleta de Carquín, Peru | M5.1 | 129 km | 52 km |
| Jan 6, 2017 | 66 km WSW of Caleta de Carquín, Peru | M5.1 | 150 km | 38 km |
| Jul 28, 2007 | 34 km SW of Supe Puerto, Peru | M5.0 | 128 km | 51 km |
| Jun 7, 2008 | 63 km SW of Callao, Peru | M5.0 | 149 km | 35 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 | 36 km |
| 1586 | CENTRAL PERU | Earthquake | 26.0 m | 22 | 149 km |
| 1746 | CENTRAL PERU | Earthquake | 24.0 m | 5,941 | 90 km |
| 1865 | CENTRAL PERU | Earthquake | 2.0 m | 5 | 86 km |
| 1806 | CENTRAL PERU | Earthquake | 1.0 m | — | 97 km |
| 1878 | CENTRAL PERU | Unknown | — | 5 | 83 km |
| 1860 | CENTRAL PERU | Earthquake | — | — | 97 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 72°F (22°C) | 3.6 in | Warmest |
| February | 49°F (10°C) | 4.7 in | |
| March | 49°F (10°C) | 5.1 in | Wettest |
| April | 49°F (9°C) | 1.9 in | |
| May | 47°F (8°C) | 0.3 in | |
| June | 45°F (7°C) | 0.0 in | Driest |
| July | 69°F (21°C) | 0.0 in | |
| August | 45°F (7°C) | 0.2 in | Coldest |
| September | 46°F (8°C) | 0.5 in | |
| October | 48°F (9°C) | 1.2 in | |
| November | 48°F (9°C) | 1.1 in | |
| December | 49°F (9°C) | 2.3 in |
Acos has a seasonal temperature swing of 27°F / from 45°F in August to 72°F in January. Total annual precipitation is 21.0 inches, with March being the wettest month (5.1") and June the driest (0.0").