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Monthly climate in Santiago de Cao, Peru

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Santiago de Cao features a hot desert climate (BWh). Temperatures typically range between 16 °C (61 °F) and 23 °C (73 °F) through the year, but rarely can drop to 13 °C (56 °F) or can rise to as high as 29 °C (84 °F). The average annual precipitation amounts to about 101 mm (4.0 inches) and receives 16 rainy days on the 1 mm (0.04 inches) threshold annually. Santiago de Cao enjoys an average of 3759 hours of sunshine throughout the year, and daylight varies from 11 hours 39 minutes to 12 hours 33 minutes per day.

Monthly average temperatures in Santiago de Cao, Peru

The warmest months in Santiago de Cao are January, February and March, with daily mean temperatures ranging from 21 to 23 °C (71 - 73 °F) throughout the day. The coldest temperatures usually occur in August, September and October, when daily mean temperatures range from 16 to 17 °C (61 - 62 °F) throughout the day. On average each year, Santiago de Cao experiences 23 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 Santiago de Cao. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum27°C
(81°F)		29°C
(84°F)		28°C
(84°F)		26°C
(79°F)		24°C
(76°F)		21°C
(71°F)		20°C
(68°F)		20°C
(69°F)		19°C
(67°F)		20°C
(68°F)		22°C
(72°F)		23°C
(75°F)
Mean maximum25°C
(77°F)		26°C
(79°F)		26°C
(79°F)		24°C
(75°F)		22°C
(72°F)		20°C
(69°F)		20°C
(68°F)		19°C
(67°F)		19°C
(66°F)		19°C
(67°F)		21°C
(69°F)		22°C
(72°F)
Average high23°C
(74°F)		25°C
(77°F)		25°C
(77°F)		22°C
(72°F)		21°C
(69°F)		19°C
(67°F)		19°C
(66°F)		18°C
(65°F)		18°C
(65°F)		18°C
(65°F)		19°C
(67°F)		21°C
(70°F)
Daily mean21°C
(71°F)		23°C
(73°F)		23°C
(73°F)		20°C
(69°F)		19°C
(66°F)		18°C
(64°F)		17°C
(63°F)		16°C
(62°F)		16°C
(61°F)		17°C
(62°F)		18°C
(64°F)		19°C
(67°F)
Average low20°C
(68°F)		21°C
(71°F)		22°C
(71°F)		19°C
(67°F)		17°C
(64°F)		16°C
(62°F)		16°C
(61°F)		15°C
(59°F)		15°C
(59°F)		15°C
(60°F)		16°C
(61°F)		18°C
(64°F)
Mean minimum18°C
(65°F)		20°C
(69°F)		20°C
(68°F)		18°C
(64°F)		16°C
(61°F)		15°C
(60°F)		15°C
(59°F)		14°C
(58°F)		14°C
(57°F)		14°C
(58°F)		15°C
(59°F)		17°C
(62°F)
Minimum17°C
(63°F)		19°C
(66°F)		18°C
(65°F)		16°C
(62°F)		14°C
(58°F)		14°C
(58°F)		14°C
(57°F)		13°C
(56°F)		13°C
(56°F)		14°C
(57°F)		14°C
(57°F)		16°C
(61°F)

Compare climate in Santiago de Cao with other places

Compare temperature, precipitation, sunshine, UV index in Santiago de Cao, Peru with other places around the world.

Monthly average precipitation in Santiago de Cao, Peru

Santiago de Cao usually has the most precipitation in February, March and December, with an average of 3 rainy days and 13 mm (0.5 inches) of precipitation per month. The driest months in Santiago de Cao are May, June and November. On average, 5 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santiago de Cao. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)9 (0.4)9 (0.4)17 (0.7)8 (0.3)4 (0.1)6 (0.2)8 (0.3)9 (0.4)8 (0.3)6 (0.2)5 (0.2)11 (0.4)
Average precipitation days (≥ 1 mm)226300000003

Monthly sunshine hours in Santiago de Cao, Peru

The sunniest months in Santiago de Cao are July, August and October, when the sun shines an average of 10 hours 49 minutes a day. Least sunny months in Santiago de Cao: January, February and March receive an average of 9 hours 15 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santiago de Cao. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours254294292306328319334337318334319318
Mean daily daylight hours12h 30m12h 20m12h 7m11h 54m11h 44m11h 39m11h 41m11h 50m12h 3m12h 16m12h 28m12h 33m

Solar UV radiation in Santiago de Cao, Peru

Santiago de Cao experiences the highest level of ultraviolet (UV) radiation in January, February and March, when the maximum UV index can reach values of 15 - 15, which corresponds to the Extreme category of sun exposure. June, July and August are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 11. For more detailed information, check out our hourly Santiago de Cao UV Index data.

Average daily maximum UV levels by month for Santiago de Cao. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151515141211111113141414