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Weather & Climate in Santa Rosa, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Santa Rosa has a warm climate with an average annual temperature of 71°F (22°C). Winters average 73°F in January while summers reach 68°F in July / relatively mild seasonal variation. The area gets 364 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 2.4 inches (drier than the 38-inch national average). The city sits at an elevation of 102 feet.
Temperature
73°F Jan (23°C)
68°F Jul (20°C)
| Annual Average | 70.7°F |
| 31% above US avg | |
| January Average | 73°F (23°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 364 days/yr |
Geography
| Elevation | 102 ft (31 m) |
| Area | 201.9 sq mi (522.8 km²) |
| Population Density | 0/sq mi |
| Coordinates | -11.7992°N, 77.1733°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
185 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.
| Apr 18, 1993 | 15 km SE of Lachaqui, Peru | M6.3 | 72 km | 106 km |
| Apr 29, 1991 | 18 km SSW of Huacho, Peru | M5.9 | 81 km | 58 km |
| Jun 23, 2021 | 11 km WSW of Mala, Peru | M5.9 | 112 km | 50 km |
| May 8, 2003 | 90 km WSW of Chilca, Peru | M5.7 | 118 km | 33 km |
| Jun 15, 2025 | 37 km WSW of Callao, Peru | M5.6 | 51 km | 40 km |
| Jun 21, 1995 | 28 km W of Chancay, Peru | M5.6 | 49 km | 71 km |
| May 28, 2003 | 33 km SSW of Santiago de Surco, Peru | M5.6 | 66 km | 43 km |
| Jan 7, 2022 | 6 km NW of Cocachacra, Peru | M5.6 | 66 km | 96 km |
| Oct 1, 1996 | 19 km SSW of Chilca, Peru | M5.6 | 106 km | 62 km |
| Nov 25, 2013 | 12 km SE of Omas, Peru | M5.5 | 138 km | 77 km |
| Dec 25, 1998 | 9 km SE of Chancay, Peru | M5.4 | 19 km | 67 km |
| May 12, 2022 | 9 km W of San Bartolo, Peru | M5.4 | 72 km | 53 km |
| Mar 29, 2008 | 14 km SSW of Callao, Peru | M5.3 | 42 km | 51 km |
| Mar 20, 1998 | 54 km W of Callao, Peru | M5.2 | 60 km | 49 km |
| Jul 18, 2016 | 17 km SW of Caleta de Carquín, Peru | M5.2 | 90 km | 75 km |
| Feb 15, 2024 | 13 km NW of Chancay, Peru | M5.2 | 40 km | 67 km |
| May 17, 2018 | 7 km E of Mala, Peru | M5.2 | 117 km | 56 km |
| Jun 3, 2014 | 20 km W of Chilca, Peru | M5.2 | 84 km | 36 km |
| Mar 31, 2022 | 40 km W of Caleta de Carquín, Peru | M5.1 | 114 km | 52 km |
| Jan 6, 2017 | 66 km WSW of Caleta de Carquín, Peru | M5.1 | 123 km | 38 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
8 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 | 102 km |
| 1586 | CENTRAL PERU | Earthquake | 26.0 m | 22 | 80 km |
| 1746 | CENTRAL PERU | Earthquake | 24.0 m | 5,941 | 22 km |
| 1865 | CENTRAL PERU | Earthquake | 2.0 m | 5 | 24 km |
| 1806 | CENTRAL PERU | Earthquake | 1.0 m | — | 34 km |
| 1974 | CENTRAL PERU | Earthquake | 0.9 m | 78 | 85 km |
| 1878 | CENTRAL PERU | Unknown | — | 5 | 29 km |
| 1860 | CENTRAL PERU | Earthquake | — | — | 34 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 73°F (23°C) | 0.1 in | Warmest |
| February | 72°F (22°C) | 0.2 in | Wettest |
| March | 71°F (22°C) | 0.2 in | |
| April | 69°F (20°C) | 0.1 in | |
| May | 65°F (18°C) | 0.1 in | |
| June | 62°F (17°C) | 0.1 in | |
| July | 68°F (20°C) | 0.1 in | |
| August | 60°F (16°C) | 0.1 in | Coldest |
| September | 61°F (16°C) | 0.1 in | |
| October | 63°F (17°C) | 0.0 in | Driest |
| November | 65°F (18°C) | 0.0 in | |
| December | 68°F (20°C) | 0.0 in |
Santa Rosa has a seasonal temperature swing of 13°F / from 60°F in August to 73°F in January. Total annual precipitation is 1.1 inches, with February being the wettest month (0.2") and October the driest (0.0").