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Weather & Climate in Santiago, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Santiago has a warm climate with an average annual temperature of 78°F (26°C). Winters average 82°F in January while summers reach 74°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 6.8 inches (drier than the 38-inch national average). The city sits at an elevation of 1,243 feet.
Temperature
82°F Jan (28°C)
74°F Jul (23°C)
| Annual Average | 78.4°F |
| 45% above US avg | |
| January Average | 82°F (28°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 362 days/yr |
Geography
| Elevation | 1,243 ft (379 m) |
| Area | 1,561.5 sq mi (4,044.4 km²) |
| Population Density | 7/sq mi |
| Coordinates | -14.1847°N, 75.7112°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
618 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 | 131 km | 39 km |
| Nov 12, 1996 | 60 km SW of Changuillo, Peru | M7.7 | 90 km | 33 km |
| Aug 16, 2007 | 46 km WSW of Santiago, Peru | M6.4 | 46 km | 23 km |
| Jan 30, 2012 | 6 km ESE of Pampa de Tate, Peru | M6.4 | 8 km | 43 km |
| Apr 5, 1991 | 21 km ESE of Pampa de Tate, Peru | M6.3 | 22 km | 50 km |
| Feb 9, 1997 | 68 km S of Paracas, Peru | M6.1 | 70 km | 33 km |
| Mar 15, 2014 | 24 km SSW of Paracas, Peru | M6.1 | 66 km | 20 km |
| Nov 13, 1996 | 54 km WSW of Changuillo, Peru | M6.1 | 73 km | 33 km |
| May 16, 1992 | 4 km E of San Clemente, Peru | M6.1 | 71 km | 57 km |
| May 23, 2010 | 4 km WNW of Sacsamarca, Peru | M6.1 | 149 km | 101 km |
| Aug 16, 2007 | 46 km S of Paracas, Peru | M6.0 | 55 km | 35 km |
| Aug 18, 2007 | 7 km NNW of Paracas, Peru | M6.0 | 76 km | 30 km |
| Feb 2, 2009 | 40 km WNW of Pisco, Peru | M6.0 | 113 km | 21 km |
| Nov 13, 1996 | 29 km WSW of San Juan, Peru | M6.0 | 147 km | 33 km |
| Aug 17, 2007 | 44 km WNW of Pisco, Peru | M5.9 | 116 km | 49 km |
| May 3, 2005 | central Peru | M5.9 | 143 km | 31 km |
| Feb 18, 2014 | 10 km ESE of Pampa de Tate, Peru | M5.9 | 12 km | 57 km |
| Aug 19, 2007 | 45 km WNW of Pisco, Peru | M5.8 | 116 km | 11 km |
| Nov 15, 1996 | 30 km WSW of Changuillo, Peru | M5.8 | 71 km | 33 km |
| Aug 16, 2007 | 38 km SW of San Vicente de Cañete, Peru | M5.8 | 133 km | 34 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 10.1 m (33 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2007 | S. PERU | Earthquake | 10.1 m | 596 | 131 km |
| 1942 | S. PERU | Eruption + Earthquake | 2.0 m | 30 | 96 km |
| 1996 | S. PERU | Earthquake | 0.4 m | 14 | 90 km |
| 1687 | S. PERU | Earthquake | — | 5,000 | 114 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 82°F (28°C) | 0.0 in | Warmest, Wettest |
| February | 73°F (23°C) | 0.0 in | |
| March | 72°F (22°C) | 0.0 in | |
| April | 69°F (21°C) | 0.0 in | Driest |
| May | 65°F (19°C) | 0.0 in | |
| June | 62°F (17°C) | 0.0 in | |
| July | 74°F (23°C) | 0.0 in | |
| August | 61°F (16°C) | 0.0 in | Coldest |
| September | 62°F (17°C) | 0.0 in | |
| October | 64°F (18°C) | 0.0 in | |
| November | 66°F (19°C) | 0.0 in | |
| December | 70°F (21°C) | 0.0 in |
Santiago has a seasonal temperature swing of 21°F / from 61°F in August to 82°F in January. Total annual precipitation is 0.1 inches, with January being the wettest month (0.0") and April the driest (0.0").