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Monthly climate in San Cristobal, Peru

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Cristobal features a ice cap climate ET). Temperatures typically range between 9 °C (48 °F) and 11 °C (53 °F) through the year, but rarely can drop to -5 °C (24 °F) or can rise to as high as 22 °C (71 °F). The average annual precipitation amounts to about 896 mm (35.3 inches) and receives 122 rainy days on the 1 mm (0.04 inches) threshold annually. San Cristobal enjoys an average of 3900 hours of sunshine throughout the year, and daylight varies from 11 hours 7 minutes to 13 hours 5 minutes per day.

Monthly average temperatures in San Cristobal, Peru

The warmest months in San Cristobal are September, October and November, with daily mean temperatures ranging from 11 to 11 °C (52 - 53 °F) throughout the day. The coldest temperatures usually occur in April, June and July, when daily mean temperatures range from 9 to 9 °C (48 - 49 °F) throughout the day. On average each year, San Cristobal experiences 0 days above 25 °C (77.0 °F) and 14 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 Cristobal. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum19°C
(66°F)		18°C
(64°F)		16°C
(61°F)		19°C
(67°F)		20°C
(68°F)		20°C
(68°F)		20°C
(68°F)		21°C
(69°F)		21°C
(70°F)		22°C
(71°F)		21°C
(70°F)		21°C
(69°F)
Mean maximum16°C
(62°F)		16°C
(60°F)		15°C
(60°F)		17°C
(63°F)		18°C
(65°F)		18°C
(64°F)		19°C
(66°F)		19°C
(66°F)		20°C
(69°F)		20°C
(69°F)		19°C
(67°F)		19°C
(66°F)
Average high13°C
(56°F)		13°C
(56°F)		13°C
(56°F)		15°C
(59°F)		16°C
(61°F)		16°C
(60°F)		16°C
(60°F)		16°C
(62°F)		18°C
(64°F)		17°C
(64°F)		17°C
(63°F)		16°C
(60°F)
Daily mean9°C
(49°F)		9°C
(49°F)		9°C
(49°F)		9°C
(49°F)		9°C
(49°F)		9°C
(48°F)		9°C
(48°F)		9°C
(49°F)		11°C
(52°F)		11°C
(53°F)		11°C
(52°F)		11°C
(51°F)
Average low6°C
(44°F)		6°C
(43°F)		6°C
(42°F)		3°C
(38°F)		3°C
(38°F)		3°C
(37°F)		2°C
(36°F)		3°C
(38°F)		5°C
(42°F)		6°C
(43°F)		7°C
(44°F)		7°C
(44°F)
Mean minimum3°C
(37°F)		2°C
(36°F)		2°C
(35°F)		-2°C
(28°F)		-2°C
(28°F)		-0°C
(32°F)		-2°C
(28°F)		-0°C
(32°F)		1°C
(34°F)		1°C
(35°F)		3°C
(38°F)		3°C
(37°F)
Minimum1°C
(34°F)		0°C
(32°F)		0°C
(33°F)		-5°C
(24°F)		-4°C
(26°F)		-2°C
(28°F)		-3°C
(26°F)		-1°C
(30°F)		-2°C
(29°F)		0°C
(32°F)		2°C
(36°F)		2°C
(36°F)

Compare climate in San Cristobal with other places

Compare temperature, precipitation, sunshine, UV index in San Cristobal, Peru with other places around the world.

Monthly average precipitation in San Cristobal, Peru

San Cristobal usually has the most precipitation in January, February and March, with an average of 26 rainy days and 228 mm (9.0 inches) of precipitation per month. The driest months in San Cristobal are June, July and August. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Cristobal. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)230 (9.1)244 (9.6)209 (8.2)52 (2.0)6 (0.2)1 (0.1)2 (0.1)1 (0.1)5 (0.2)17 (0.7)35 (1.4)92 (3.6)
Average precipitation days (≥ 1 mm)24272813100014717

Monthly sunshine hours in San Cristobal, Peru

The sunniest months in San Cristobal are October, November and December, when the sun shines an average of 11 hours 36 minutes a day. Least sunny months in San Cristobal: January, February and March receive an average of 9 hours 6 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Cristobal. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours248272307319335321337347343364354348
Mean daily daylight hours12h 59m12h 37m12h 9m11h 41m11h 18m11h 7m11h 13m11h 33m12h 0m12h 28m12h 53m13h 5m

Solar UV radiation in San Cristobal, Peru

San Cristobal experiences the highest level of ultraviolet (UV) radiation in February, November and December, when the maximum UV index can reach values of 18 - 19, which corresponds to the Extreme category of sun exposure. May, June and July are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly San Cristobal UV Index data.

Average daily maximum UV levels by month for San Cristobal. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)181917151210111416181818