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Weather & Climate in Aco, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Aco has a cool climate with an average annual temperature of 45°F (7°C). Winters average 43°F in January while summers reach 46°F in July / relatively mild seasonal variation. The area gets 352 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 87.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 10,906 feet.
Temperature
43°F Jan (6°C)
46°F Jul (8°C)
| Annual Average | 44.9°F |
| 17% below US avg | |
| January Average | 43°F (6°C) |
| July Average | 46°F (8°C) |
| Sunny Days | 352 days/yr |
Geography
| Elevation | 10,906 ft (3,324 m) |
| Area | 540.2 sq mi (1,399.2 km²) |
| Population Density | 1/sq mi |
| Coordinates | -8.5231°N, 77.8776°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
62 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.
| Apr 11, 2005 | 18 km ENE of Shirac, Peru | M6.0 | 137 km | 130 km |
| Jan 3, 2010 | 16 km E of Huallanca, Peru | M5.7 | 36 km | 117 km |
| May 12, 1992 | 40 km W of Puerto Casma, Peru | M5.7 | 147 km | 63 km |
| Oct 18, 1992 | 25 km SW of Chimbote, Peru | M5.2 | 124 km | 48 km |
| May 8, 2017 | 21 km NW of Tocache, Peru | M5.2 | 144 km | 10 km |
| Jan 15, 2019 | 44 km W of Puerto Santa, Peru | M5.2 | 137 km | 58 km |
| Jun 24, 2022 | near the coast of northern Peru | M5.1 | 145 km | 73 km |
| Mar 21, 2015 | 33 km SSW of Chimbote, Peru | M5.1 | 131 km | 55 km |
| Oct 19, 1992 | 30 km S of Puerto Casma, Peru | M5.1 | 147 km | 53 km |
| Jul 23, 1997 | 33 km WSW of Chimbote, Peru | M5.0 | 133 km | 66 km |
| Feb 19, 2024 | 33 km SSW of Chimbote, Peru | M5.0 | 131 km | 76 km |
| Aug 13, 2025 | 36 km W of Puerto Santa, Peru | M5.0 | 128 km | 68 km |
| Mar 15, 1996 | 17 km ENE of Caraz, Peru | M5.0 | 57 km | 29 km |
| Aug 8, 2002 | 13 km S of Puente Viru, Peru | M4.9 | 97 km | 77 km |
| Jul 20, 2016 | 15 km E of Virú, Peru | M4.9 | 82 km | 106 km |
| Apr 7, 1994 | 56 km SW of Victor Raul, Peru | M4.9 | 148 km | 60 km |
| Oct 9, 1999 | 48 km SW of Chimbote, Peru | M4.8 | 148 km | 51 km |
| Aug 25, 2009 | 23 km ENE of Sartimbamba, Peru | M4.7 | 108 km | 63 km |
| Nov 19, 1998 | 2 km S of Coishco, Peru | M4.7 | 100 km | 73 km |
| May 7, 2015 | 5 km ENE of Sitabamba, Peru | M4.7 | 61 km | 48 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 23.0 m (75 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2010 | 513 LAKE, HUALCAN GLACIER | Meteorological | 23.0 m | 1 | 88 km |
| 1970 | N. PERU | Earthquake | 0.5 m | 66,794 | 126 km |
| 1678 | CENTRAL PERU | Earthquake | — | — | 134 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 2.1 in | Coldest |
| February | 55°F (13°C) | 2.4 in | |
| March | 55°F (13°C) | 3.2 in | Wettest |
| April | 55°F (13°C) | 1.6 in | |
| May | 54°F (12°C) | 0.5 in | |
| June | 53°F (12°C) | 0.1 in | Driest |
| July | 46°F (8°C) | 0.1 in | |
| August | 54°F (12°C) | 0.2 in | |
| September | 54°F (12°C) | 0.7 in | |
| October | 55°F (13°C) | 1.6 in | |
| November | 55°F (13°C) | 1.5 in | Warmest |
| December | 55°F (13°C) | 1.7 in |
Aco has a seasonal temperature swing of 13°F / from 43°F in January to 55°F in November. Total annual precipitation is 15.6 inches, with March being the wettest month (3.2") and June the driest (0.1").