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Weather & Climate in Chao, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chao enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 71°F in January while summers reach 66°F in July / relatively mild seasonal variation. The area gets 354 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 12.3 inches (drier than the 38-inch national average). The city sits at an elevation of 266 feet.
Temperature
71°F Jan (22°C)
66°F Jul (19°C)
| Annual Average | 68.9°F |
| 28% above US avg | |
| January Average | 71°F (22°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 354 days/yr |
Geography
| Elevation | 266 ft (81 m) |
| Area | 570.3 sq mi (1,477.1 km²) |
| Population Density | 0/sq mi |
| Coordinates | -8.5431°N, 78.6792°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
157 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.8.
| Nov 13, 2000 | 79 km WSW of Santiago de Cao, Peru | M5.8 | 144 km | 33 km |
| Jul 29, 2021 | 90 km WSW of Santiago de Cao, Peru | M5.8 | 143 km | 23 km |
| May 12, 1992 | 40 km W of Puerto Casma, Peru | M5.7 | 109 km | 63 km |
| Jan 3, 2010 | 16 km E of Huallanca, Peru | M5.7 | 110 km | 117 km |
| Dec 14, 1990 | 70 km WSW of Puerto Casma, Peru | M5.6 | 132 km | 38 km |
| Apr 26, 2015 | 76 km WSW of Santiago de Cao, Peru | M5.6 | 129 km | 22 km |
| Mar 30, 2013 | 68 km SW of Chimbote, Peru | M5.4 | 113 km | 35 km |
| Jan 28, 2017 | 55 km WSW of Chimbote, Peru | M5.3 | 97 km | 50 km |
| Oct 18, 1992 | 25 km SW of Chimbote, Peru | M5.2 | 81 km | 48 km |
| Jan 15, 2019 | 44 km W of Puerto Santa, Peru | M5.2 | 61 km | 58 km |
| Jul 20, 2020 | 92 km WSW of Santiago de Cao, Peru | M5.1 | 144 km | 32 km |
| Mar 18, 2002 | 109 km SW of Santiago de Cao, Peru | M5.1 | 143 km | 49 km |
| Mar 21, 2015 | 33 km SSW of Chimbote, Peru | M5.1 | 90 km | 55 km |
| Oct 19, 1992 | 30 km S of Puerto Casma, Peru | M5.1 | 136 km | 53 km |
| Dec 14, 1993 | 53 km SW of Puerto Santa, Peru | M5.1 | 93 km | 64 km |
| May 5, 2013 | 68 km SW of Chimbote, Peru | M5.1 | 110 km | 52 km |
| May 15, 2014 | 16 km NNW of Paiján, Peru | M5.1 | 129 km | 64 km |
| Jun 24, 2022 | near the coast of northern Peru | M5.1 | 61 km | 73 km |
| Aug 13, 2025 | 36 km W of Puerto Santa, Peru | M5.0 | 54 km | 68 km |
| Mar 28, 2015 | 44 km SSW of Puerto Casma, Peru | M5.0 | 145 km | 53 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 | 140 km |
| 1970 | N. PERU | Earthquake | 0.5 m | 66,794 | 74 km |
| 1678 | CENTRAL PERU | Earthquake | — | — | 62 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 71°F (22°C) | 0.3 in | |
| February | 74°F (23°C) | 0.4 in | Warmest |
| March | 74°F (23°C) | 0.5 in | Wettest |
| April | 71°F (22°C) | 0.1 in | |
| May | 69°F (20°C) | 0.0 in | Driest |
| June | 67°F (19°C) | 0.0 in | |
| July | 66°F (19°C) | 0.0 in | |
| August | 65°F (18°C) | 0.0 in | Coldest |
| September | 65°F (18°C) | 0.0 in | |
| October | 66°F (19°C) | 0.1 in | |
| November | 68°F (20°C) | 0.1 in | |
| December | 70°F (21°C) | 0.1 in |
Chao has a seasonal temperature swing of 9°F / from 65°F in August to 74°F in February. Total annual precipitation is 1.6 inches, with March being the wettest month (0.5") and May the driest (0.0").