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Weather & Climate in Raján, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Raján has a cool climate with an average annual temperature of 42°F (6°C). Winters average 40°F in January while summers reach 41°F in July / relatively mild seasonal variation. The area gets 348 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 83.1 inches (wetter than the 38-inch national average). The area receives 58.6 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 11,877 feet.
Temperature
40°F Jan (5°C)
41°F Jul (5°C)
| Annual Average | 41.9°F |
| 22% below US avg | |
| January Average | 40°F (5°C) |
| July Average | 41°F (5°C) |
| Sunny Days | 348 days/yr |
Geography
| Elevation | 11,877 ft (3,620 m) |
| Area | 457.0 sq mi (1,183.6 km²) |
| Population Density | 1/sq mi |
| Coordinates | -10.3869°N, 77.2191°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
123 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.9.
| Apr 29, 1991 | 18 km SSW of Huacho, Peru | M5.9 | 109 km | 58 km |
| Jul 17, 1992 | 55 km SW of Huarmey, Peru | M5.8 | 146 km | 45 km |
| May 11, 2002 | 55 km SW of Huarmey, Peru | M5.7 | 141 km | 47 km |
| Jul 31, 1995 | 41 km SSW of Huarmey, Peru | M5.7 | 114 km | 59 km |
| Jun 21, 1995 | 28 km W of Chancay, Peru | M5.6 | 132 km | 71 km |
| Dec 25, 1998 | 9 km SE of Chancay, Peru | M5.4 | 139 km | 67 km |
| Feb 17, 2005 | 7 km W of Carhuamayo, Peru | M5.4 | 136 km | 126 km |
| Apr 1, 2015 | 30 km WNW of Paramonga, Peru | M5.3 | 96 km | 48 km |
| Nov 5, 1998 | 36 km SW of Huarmey, Peru | M5.3 | 125 km | 51 km |
| Feb 15, 2024 | 13 km NW of Chancay, Peru | M5.2 | 123 km | 67 km |
| Jul 18, 2016 | 17 km SW of Caleta de Carquín, Peru | M5.2 | 107 km | 75 km |
| Mar 28, 2010 | 14 km SE of Huarmey, Peru | M5.2 | 95 km | 65 km |
| Dec 6, 2000 | 59 km WSW of Paramonga, Peru | M5.2 | 134 km | 41 km |
| Oct 19, 1992 | 30 km S of Puerto Casma, Peru | M5.1 | 150 km | 53 km |
| Mar 31, 2022 | 40 km W of Caleta de Carquín, Peru | M5.1 | 121 km | 52 km |
| Jan 6, 2017 | 66 km WSW of Caleta de Carquín, Peru | M5.1 | 149 km | 38 km |
| Jul 29, 2004 | 61 km WSW of Supe Puerto, Peru | M5.1 | 135 km | 52 km |
| May 12, 2020 | 37 km WNW of Paramonga, Peru | M5.0 | 107 km | 73 km |
| Jul 28, 2007 | 34 km SW of Supe Puerto, Peru | M5.0 | 108 km | 51 km |
| Feb 7, 2019 | 74 km W of Paramonga, Peru | M4.9 | 144 km | 40 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 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 | 112 km |
| 2010 | 513 LAKE, HUALCAN GLACIER | Meteorological | 23.0 m | 1 | 131 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (5°C) | 3.5 in | Coldest |
| February | 49°F (9°C) | 4.4 in | Warmest |
| March | 49°F (9°C) | 5.4 in | Wettest |
| April | 48°F (9°C) | 1.8 in | |
| May | 47°F (8°C) | 0.4 in | |
| June | 45°F (7°C) | 0.0 in | Driest |
| July | 41°F (5°C) | 0.0 in | |
| August | 45°F (7°C) | 0.1 in | |
| September | 46°F (8°C) | 0.4 in | |
| October | 48°F (9°C) | 1.2 in | |
| November | 48°F (9°C) | 1.3 in | |
| December | 48°F (9°C) | 1.9 in |
Raján has a seasonal temperature swing of 9°F / from 40°F in January to 49°F in February. Total annual precipitation is 20.5 inches, with March being the wettest month (5.4") and June the driest (0.0").