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Monthly climate in Antofagasta, Chile

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Antofagasta features a cold desert climate (BWk). Temperatures typically range between 14 °C (57 °F) and 19 °C (66 °F) through the year, but rarely can drop to 11 °C (52 °F) or can rise to as high as 23 °C (74 °F). The average annual precipitation amounts to about 151 mm (5.9 inches) and receives 38 rainy days on the 1 mm (0.04 inches) threshold annually. Antofagasta enjoys an average of 4082 hours of sunshine throughout the year, and daylight varies from 10 hours 41 minutes to 13 hours 33 minutes per day.

Monthly average temperatures in Antofagasta, Chile

The warmest months in Antofagasta are January, February and March, with daily mean temperatures ranging from 18 to 19 °C (65 - 66 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 14 to 14 °C (57 - 57 °F) throughout the day. On average each year, Antofagasta experiences 0 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Antofagasta. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum23°C
(74°F)		23°C
(73°F)		23°C
(73°F)		20°C
(68°F)		20°C
(69°F)		21°C
(70°F)		19°C
(66°F)		19°C
(67°F)		17°C
(63°F)		17°C
(63°F)		19°C
(66°F)		19°C
(67°F)
Mean maximum21°C
(70°F)		21°C
(70°F)		20°C
(69°F)		19°C
(66°F)		18°C
(65°F)		18°C
(65°F)		17°C
(64°F)		18°C
(64°F)		16°C
(61°F)		17°C
(62°F)		18°C
(64°F)		19°C
(67°F)
Average high20°C
(67°F)		20°C
(68°F)		19°C
(66°F)		17°C
(64°F)		16°C
(62°F)		16°C
(61°F)		15°C
(59°F)		15°C
(59°F)		15°C
(59°F)		15°C
(60°F)		16°C
(62°F)		18°C
(64°F)
Daily mean19°C
(66°F)		19°C
(66°F)		18°C
(65°F)		16°C
(62°F)		15°C
(60°F)		15°C
(59°F)		14°C
(57°F)		14°C
(57°F)		14°C
(57°F)		14°C
(58°F)		15°C
(60°F)		17°C
(63°F)
Average low18°C
(64°F)		18°C
(65°F)		17°C
(63°F)		16°C
(60°F)		14°C
(58°F)		14°C
(57°F)		13°C
(55°F)		13°C
(55°F)		12°C
(55°F)		13°C
(56°F)		14°C
(58°F)		16°C
(61°F)
Mean minimum17°C
(62°F)		17°C
(62°F)		16°C
(60°F)		15°C
(59°F)		13°C
(56°F)		12°C
(55°F)		11°C
(53°F)		12°C
(53°F)		11°C
(53°F)		12°C
(54°F)		13°C
(56°F)		15°C
(59°F)
Minimum16°C
(61°F)		15°C
(60°F)		14°C
(58°F)		14°C
(57°F)		12°C
(55°F)		12°C
(54°F)		11°C
(52°F)		11°C
(52°F)		11°C
(52°F)		12°C
(53°F)		13°C
(56°F)		14°C
(58°F)

Compare climate in Antofagasta with other places

Compare temperature, precipitation, sunshine, UV index in Antofagasta, Chile with other places around the world.

Monthly average precipitation in Antofagasta, Chile

Antofagasta usually has the most precipitation in April, May and July, with an average of 6 rainy days and 18 mm (0.7 inches) of precipitation per month. The driest months in Antofagasta are January, February and December. On average, 6 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Antofagasta. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)6 (0.2)4 (0.2)10 (0.4)18 (0.7)18 (0.7)17 (0.7)19 (0.8)13 (0.5)15 (0.6)12 (0.5)11 (0.4)8 (0.3)
Average precipitation days (≥ 1 mm)001676744210

Monthly sunshine hours in Antofagasta, Chile

The sunniest months in Antofagasta are October, November and December, when the sun shines an average of 12 hours 23 minutes a day. Least sunny months in Antofagasta: January, June and July receive an average of 10 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Antofagasta. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours314340359329317298310331340371376391
Mean daily daylight hours13h 23m12h 51m12h 11m11h 30m10h 57m10h 41m10h 49m11h 18m11h 57m12h 38m13h 15m13h 33m

Solar UV radiation in Antofagasta, Chile

Antofagasta experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 15 - 15, which corresponds to the Extreme category of sun exposure. May, June and July are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. For more detailed information, check out our hourly Antofagasta UV Index data.

Average daily maximum UV levels by month for Antofagasta. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)15151310867911141515