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San Juan, Peru
Full City Profile
712
Population
2/sq mi density
9,498 ft
Elevation
2,895 meters
40°F
Avg Temperature
4°C
San Juan has a cool climate with an average annual temperature of 40°F (4°C). Winters average 39°F in January while summers reach 40°F in July. The area gets 356 sunny days per year. Annual precipitation totals 44.7 inches. The area receives 109.8 inches of snow annually.
Temperature
39°F Jan (4°C)
40°F Jul (4°C)
| Annual Average | 39.7°F |
| 26% below US avg | |
| January Average | 39°F (4°C) |
| July Average | 40°F (4°C) |
| Sunny Days | 356 days/yr |
Geography
| Elevation | 9,498 ft (2,895 m) |
| Area | 365.5 sq mi (946.7 km²) |
| Population Density | 2/sq mi |
| Coordinates | -14.6602°N, 74.2022°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 0.2 m (1 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2024 | S. PERU | Earthquake | 0.2 m | — | 131 km |
| 2018 | S. PERU | Earthquake | 0.2 m | — | 135 km |
| 2013 | S. PERU | Earthquake | 0.1 m | — | 135 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 6.5 in | Coldest |
| February | 48°F (9°C) | 5.9 in | |
| March | 48°F (9°C) | 7.1 in | Wettest |
| April | 47°F (8°C) | 1.8 in | |
| May | 45°F (7°C) | 0.8 in | |
| June | 43°F (6°C) | 0.2 in | |
| July | 40°F (4°C) | 0.2 in | Driest |
| August | 43°F (6°C) | 0.3 in | |
| September | 45°F (7°C) | 0.9 in | |
| October | 47°F (8°C) | 0.9 in | |
| November | 47°F (8°C) | 1.2 in | |
| December | 48°F (9°C) | 2.6 in | Warmest |
San Juan has a seasonal temperature swing of 9°F / from 39°F in January to 48°F in December. Total annual precipitation is 28.5 inches, with March being the wettest month (7.1") and July the driest (0.2").