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Weather & Climate in San Luis, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Luis has a cool climate with an average annual temperature of 45°F (7°C). Winters average 43°F in January while summers reach 45°F in July / relatively mild seasonal variation. The area gets 347 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 43.1 inches. The area receives 7.1 inches of snow annually. The city sits at an elevation of 10,056 feet.
Temperature
43°F Jan (6°C)
45°F Jul (7°C)
| Annual Average | 45.2°F |
| 16% below US avg | |
| January Average | 43°F (6°C) |
| July Average | 45°F (7°C) |
| Sunny Days | 347 days/yr |
Geography
| Elevation | 10,056 ft (3,065 m) |
| Area | 89.0 sq mi (230.4 km²) |
| Population Density | 0/sq mi |
| Coordinates | -9.0833°N, 77.3500°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
49 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.7.
| Jan 3, 2010 | 16 km E of Huallanca, Peru | M5.7 | 51 km | 117 km |
| Oct 4, 1998 | 9 km E of Uchiza, Peru | M5.5 | 127 km | 33 km |
| Jun 5, 2008 | 30 km S of Uchiza, Peru | M5.2 | 107 km | 126 km |
| Mar 28, 2010 | 14 km SE of Huarmey, Peru | M5.2 | 142 km | 65 km |
| May 8, 2017 | 21 km NW of Tocache, Peru | M5.2 | 138 km | 10 km |
| Oct 19, 1992 | 30 km S of Puerto Casma, Peru | M5.1 | 138 km | 53 km |
| Mar 15, 1996 | 17 km ENE of Caraz, Peru | M5.0 | 36 km | 29 km |
| Apr 19, 2025 | 23 km SW of Tingo María, Peru | M4.9 | 139 km | 113 km |
| Aug 13, 2019 | 12 km WNW of Ticllos, Peru | M4.9 | 124 km | 15 km |
| Aug 7, 2012 | 31 km NW of Tingo María, Peru | M4.8 | 129 km | 120 km |
| Aug 25, 2002 | 33 km ESE of Uchiza, Peru | M4.8 | 141 km | 16 km |
| Sep 3, 2019 | 50 km NNW of Tingo María, Peru | M4.8 | 128 km | 118 km |
| May 14, 2014 | 25 km ENE of Uchiza, Peru | M4.7 | 145 km | 28 km |
| Aug 1, 2016 | 36 km NE of Arancay, Peru | M4.7 | 91 km | 129 km |
| Aug 17, 1998 | 2 km NNE of Llacllin, Peru | M4.7 | 111 km | 92 km |
| Nov 19, 1998 | 2 km S of Coishco, Peru | M4.7 | 139 km | 73 km |
| May 7, 2015 | 5 km ENE of Sitabamba, Peru | M4.7 | 125 km | 48 km |
| Oct 19, 1996 | 49 km ESE of Uchiza, Peru | M4.7 | 150 km | 135 km |
| May 17, 2000 | 28 km SW of Puerto Casma, Peru | M4.6 | 145 km | 52 km |
| May 8, 2005 | 33 km SSW of Puerto Casma, Peru | M4.6 | 149 km | 52 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami 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 | 39 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 3.6 in | Coldest |
| February | 54°F (12°C) | 4.1 in | |
| March | 54°F (12°C) | 4.7 in | Wettest |
| April | 54°F (12°C) | 2.8 in | |
| May | 53°F (12°C) | 1.0 in | |
| June | 52°F (11°C) | 0.3 in | Driest |
| July | 45°F (7°C) | 0.4 in | |
| August | 53°F (12°C) | 0.6 in | |
| September | 53°F (12°C) | 1.3 in | |
| October | 54°F (12°C) | 2.7 in | |
| November | 54°F (12°C) | 3.1 in | Warmest |
| December | 54°F (12°C) | 3.2 in |
San Luis has a seasonal temperature swing of 11°F / from 43°F in January to 54°F in November. Total annual precipitation is 27.8 inches, with March being the wettest month (4.7") and June the driest (0.3").