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Weather & Climate in Antofagasta, Chile
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Antofagasta enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 69°F in January while summers reach 56°F in July / relatively mild seasonal variation. The area gets 336 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 0.0 inches (drier than the 38-inch national average). The city sits at an elevation of 906 feet.
Temperature
69°F Jan (21°C)
56°F Jul (14°C)
| Annual Average | 62.5°F |
| 16% above US avg | |
| January Average | 69°F (21°C) |
| July Average | 56°F (14°C) |
| Sunny Days | 336 days/yr |
Geography
| Elevation | 906 ft (276 m) |
| Area | 21.7 sq mi (56.1 km²) |
| Population Density | 18,509/sq mi |
| Coordinates | -23.6509°N, 70.3975°W |
| Timezone | America/Santiago |
Precipitation & Snow
Air Quality
Earthquake History
656 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M8.0.
| Jul 30, 1995 | 36 km NNE of Antofagasta, Chile | M8.0 | 36 km | 46 km |
| Jan 30, 1998 | 34 km SSE of Antofagasta, Chile | M7.1 | 35 km | 42 km |
| Apr 19, 1996 | 44 km SE of Antofagasta, Chile | M6.6 | 45 km | 50 km |
| Jan 8, 2000 | 60 km NNE of Antofagasta, Chile | M6.4 | 61 km | 36 km |
| Aug 3, 1995 | 68 km NNW of Antofagasta, Chile | M6.4 | 68 km | 17 km |
| Nov 29, 2000 | 72 km NW of Taltal, Chile | M6.3 | 144 km | 58 km |
| Jul 30, 1995 | 40 km NNW of Antofagasta, Chile | M6.2 | 40 km | 14 km |
| Mar 6, 2025 | 98 km S of Calama, Chile | M6.0 | 140 km | 96 km |
| Aug 2, 1995 | 54 km NNW of Antofagasta, Chile | M6.0 | 55 km | 33 km |
| Jul 30, 1995 | 38 km SSE of Antofagasta, Chile | M6.0 | 39 km | 30 km |
| Dec 10, 1994 | 23 km WNW of Antofagasta, Chile | M6.0 | 24 km | 37 km |
| Jan 23, 2004 | 84 km NE of Antofagasta, Chile | M5.9 | 85 km | 72 km |
| Jul 30, 1995 | 44 km N of Antofagasta, Chile | M5.9 | 45 km | 33 km |
| Jul 3, 1996 | 30 km N of Antofagasta, Chile | M5.9 | 31 km | 33 km |
| Jul 10, 1997 | 100 km SW of Tocopilla, Chile | M5.9 | 114 km | 33 km |
| Aug 2, 1995 | 30 km NW of Antofagasta, Chile | M5.8 | 30 km | 33 km |
| Feb 28, 1992 | 92 km SSE of Antofagasta, Chile | M5.8 | 93 km | 58 km |
| Jul 30, 1995 | 54 km NNW of Antofagasta, Chile | M5.8 | 55 km | 33 km |
| Jul 30, 1995 | 84 km SSW of Antofagasta, Chile | M5.8 | 85 km | 11 km |
| Aug 2, 1995 | 59 km N of Antofagasta, Chile | M5.8 | 59 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1995 | NORTHERN CHILE | Earthquake | 3.0 m | 3 | 36 km |
| 1936 | NORTHERN CHILE | Earthquake | 1.0 m | 1 | 103 km |
| 1987 | NORTHERN CHILE | Earthquake | 0.2 m | 1 | 85 km |
| 1988 | NORTHERN CHILE | Earthquake | 0.1 m | — | 123 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 69°F (21°C) | 0.0 in | Warmest, Driest |
| February | 69°F (20°C) | 0.0 in | |
| March | 67°F (19°C) | 0.0 in | |
| April | 64°F (18°C) | 0.0 in | |
| May | 60°F (16°C) | 0.0 in | |
| June | 58°F (14°C) | 0.0 in | |
| July | 56°F (14°C) | 0.0 in | Coldest |
| August | 57°F (14°C) | 0.0 in | |
| September | 59°F (15°C) | 0.0 in | Wettest |
| October | 61°F (16°C) | 0.0 in | |
| November | 64°F (18°C) | 0.0 in | |
| December | 67°F (19°C) | 0.0 in |
Antofagasta has a seasonal temperature swing of 13°F / from 56°F in July to 69°F in January. Total annual precipitation is 0.0 inches, with September being the wettest month (0.0") and January the driest (0.0").