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Monthly climate in San Pedro de Atacama, Chile

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Pedro de Atacama features a cold desert climate (BWk). Temperatures typically range between 10 °C (51 °F) and 19 °C (66 °F) through the year, but rarely can drop to -4 °C (25 °F) or can rise to as high as 32 °C (90 °F). The average annual precipitation amounts to about 119 mm (4.7 inches) and receives 16 rainy days on the 1 mm (0.04 inches) threshold annually. San Pedro de Atacama enjoys an average of 4092 hours of sunshine throughout the year, and daylight varies from 10 hours 44 minutes to 13 hours 30 minutes per day.

Monthly average temperatures in San Pedro de Atacama, Chile

The warmest months in San Pedro de Atacama are January, February and December, with daily mean temperatures ranging from 18 to 19 °C (65 - 66 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 10 to 11 °C (51 - 53 °F) throughout the day. On average each year, San Pedro de Atacama experiences 110 days above 25 °C (77.0 °F) and 4 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in San Pedro de Atacama. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum30°C
(87°F)		31°C
(88°F)		29°C
(84°F)		28°C
(83°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		25°C
(78°F)		28°C
(82°F)		29°C
(84°F)		30°C
(86°F)		32°C
(90°F)
Mean maximum30°C
(86°F)		29°C
(84°F)		28°C
(82°F)		26°C
(80°F)		24°C
(75°F)		22°C
(71°F)		23°C
(73°F)		24°C
(75°F)		26°C
(80°F)		27°C
(82°F)		29°C
(84°F)		30°C
(87°F)
Average high26°C
(78°F)		25°C
(78°F)		25°C
(77°F)		23°C
(74°F)		20°C
(69°F)		19°C
(66°F)		19°C
(67°F)		20°C
(69°F)		23°C
(74°F)		25°C
(77°F)		26°C
(79°F)		26°C
(80°F)
Daily mean19°C
(66°F)		18°C
(65°F)		18°C
(64°F)		16°C
(60°F)		12°C
(54°F)		10°C
(51°F)		11°C
(51°F)		11°C
(53°F)		15°C
(59°F)		17°C
(62°F)		18°C
(65°F)		19°C
(66°F)
Average low13°C
(56°F)		12°C
(54°F)		11°C
(52°F)		8°C
(47°F)		5°C
(41°F)		3°C
(38°F)		3°C
(38°F)		3°C
(38°F)		6°C
(43°F)		8°C
(47°F)		10°C
(50°F)		11°C
(53°F)
Mean minimum10°C
(50°F)		10°C
(50°F)		9°C
(48°F)		4°C
(40°F)		1°C
(34°F)		0°C
(33°F)		-1°C
(30°F)		-1°C
(31°F)		1°C
(35°F)		4°C
(39°F)		6°C
(43°F)		8°C
(46°F)
Minimum9°C
(49°F)		8°C
(47°F)		7°C
(45°F)		2°C
(36°F)		-1°C
(31°F)		-2°C
(29°F)		-4°C
(25°F)		-2°C
(29°F)		0°C
(32°F)		0°C
(33°F)		4°C
(39°F)		6°C
(43°F)

Compare climate in San Pedro de Atacama with other places

Compare temperature, precipitation, sunshine, UV index in San Pedro de Atacama, Chile with other places around the world.

Monthly average precipitation in San Pedro de Atacama, Chile

San Pedro de Atacama usually has the most precipitation in January, February and March, with an average of 4 rainy days and 30 mm (1.2 inches) of precipitation per month. The driest months in San Pedro de Atacama are September, October and November. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Pedro de Atacama. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)26 (1.0)54 (2.1)11 (0.4)4 (0.2)3 (0.1)6 (0.2)1 (0.1)6 (0.2)1 (0.0)0 (0.0)0 (0.0)6 (0.2)
Average precipitation days (≥ 1 mm)572010000001

Monthly sunshine hours in San Pedro de Atacama, Chile

The sunniest months in San Pedro de Atacama are October, November and December, when the sun shines an average of 12 hours 32 minutes a day. Least sunny months in San Pedro de Atacama: January, February and June receive an average of 10 hours 9 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Pedro de Atacama. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours299312359335323301320341346378384390
Mean daily daylight hours13h 20m12h 49m12h 10m11h 31m10h 59m10h 44m10h 52m11h 20m11h 57m12h 37m13h 12m13h 30m

Solar UV radiation in San Pedro de Atacama, Chile

San Pedro de Atacama experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 18 - 18, which corresponds to the Extreme category of sun exposure. May, June and July are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly San Pedro de Atacama UV Index data.

Average daily maximum UV levels by month for San Pedro de Atacama. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1817161310891114171818