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Monthly climate in San Cristobal de las Casas, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Cristobal de las Casas features a subtropical climate (Cwb). Temperatures typically range between 17 °C (63 °F) and 21 °C (70 °F) through the year, but rarely can drop to 6 °C (42 °F) or can rise to as high as 32 °C (90 °F). The average annual precipitation amounts to about 2292 mm (90.2 inches) and receives 167 rainy days on the 1 mm (0.04 inches) threshold annually. San Cristobal de las Casas enjoys an average of 3533 hours of sunshine throughout the year, and daylight varies from 11 hours 7 minutes to 13 hours 6 minutes per day.

Monthly average temperatures in San Cristobal de las Casas, Mexico

The warmest months in San Cristobal de las Casas are April, May and July, with daily mean temperatures ranging from 20 to 21 °C (69 - 70 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 17 to 18 °C (63 - 65 °F) throughout the day. On average each year, San Cristobal de las Casas experiences 210 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 San Cristobal de las Casas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum29°C
(84°F)		30°C
(86°F)		32°C
(89°F)		32°C
(90°F)		32°C
(90°F)		29°C
(84°F)		29°C
(84°F)		29°C
(84°F)		28°C
(83°F)		27°C
(82°F)		28°C
(82°F)		28°C
(83°F)
Mean maximum27°C
(82°F)		29°C
(84°F)		30°C
(87°F)		31°C
(88°F)		30°C
(87°F)		27°C
(81°F)		28°C
(83°F)		28°C
(82°F)		28°C
(82°F)		27°C
(81°F)		26°C
(80°F)		27°C
(81°F)
Average high24°C
(75°F)		26°C
(79°F)		27°C
(81°F)		28°C
(82°F)		27°C
(81°F)		25°C
(78°F)		26°C
(79°F)		26°C
(78°F)		25°C
(78°F)		25°C
(77°F)		24°C
(75°F)		24°C
(75°F)
Daily mean17°C
(63°F)		19°C
(66°F)		20°C
(69°F)		21°C
(70°F)		21°C
(70°F)		20°C
(68°F)		20°C
(69°F)		20°C
(68°F)		20°C
(68°F)		20°C
(68°F)		18°C
(65°F)		18°C
(64°F)
Average low12°C
(54°F)		13°C
(55°F)		14°C
(58°F)		15°C
(60°F)		16°C
(62°F)		16°C
(62°F)		16°C
(60°F)		16°C
(61°F)		16°C
(61°F)		16°C
(61°F)		14°C
(58°F)		13°C
(55°F)
Mean minimum9°C
(48°F)		9°C
(49°F)		11°C
(52°F)		12°C
(54°F)		14°C
(58°F)		15°C
(59°F)		14°C
(57°F)		14°C
(57°F)		14°C
(58°F)		14°C
(57°F)		10°C
(51°F)		8°C
(46°F)
Minimum7°C
(44°F)		8°C
(47°F)		10°C
(50°F)		10°C
(51°F)		13°C
(56°F)		14°C
(57°F)		13°C
(56°F)		13°C
(56°F)		13°C
(56°F)		13°C
(55°F)		9°C
(48°F)		6°C
(42°F)

Compare climate in San Cristobal de las Casas with other places

Compare temperature, precipitation, sunshine, UV index in San Cristobal de las Casas, Mexico with other places around the world.

Monthly average precipitation in San Cristobal de las Casas, Mexico

San Cristobal de las Casas usually has the most precipitation in June, August and September, with an average of 26 rainy days and 441 mm (17.4 inches) of precipitation per month. The driest months in San Cristobal de las Casas are January, February and March. On average, 11 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Cristobal de las Casas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)15 (0.6)6 (0.2)12 (0.5)50 (2.0)255 (10.1)531 (20.9)262 (10.3)346 (13.6)448 (17.6)298 (11.7)47 (1.8)23 (0.9)
Average precipitation days (≥ 1 mm)413822282023272083

Monthly sunshine hours in San Cristobal de las Casas, Mexico

The sunniest months in San Cristobal de las Casas are March, May and July, when the sun shines an average of 10 hours 16 minutes a day. Least sunny months in San Cristobal de las Casas: January, February and June receive an average of 8 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Cristobal de las Casas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours238278317310316272321311288286290299
Mean daily daylight hours11h 14m11h 35m12h 2m12h 31m12h 54m13h 6m12h 59m12h 39m12h 11m11h 43m11h 19m11h 7m

Solar UV radiation in San Cristobal de las Casas, Mexico

San Cristobal de las Casas experiences the highest level of ultraviolet (UV) radiation in April, May and July, when the maximum UV index can reach values of 15 - 15, which corresponds to the Extreme category of sun exposure. January, November and December 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 Cristobal de las Casas UV Index data.

Average daily maximum UV levels by month for San Cristobal de las Casas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10131415151515141413109