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San Cristóbal de las Casas, Chiapas Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in San Cristóbal de las Casas, Chiapas?
San Cristóbal de las Casas, Chiapas gets 693 mm of precipitation a year over about 86 rainy days. April is the warmest month (average high 26°C) and January the coldest (average low 6°C).
Subtropical highland climate
San Cristóbal de las Casas, Chiapas has warm summers and warm winters. Daytime highs range from about 22°C in January to 26°C in April. June is usually the wettest month. The most comfortable time to visit is typically January to May and July to December, when daytime highs sit near 24°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 6° | 22° |
| Spring | Mar–May | 9° | 26° |
| Summer | Jun–Aug | 12° | 24° |
| Autumn | Sep–Nov | 10° | 23° |
How much rain does San Cristóbal de las Casas get?
San Cristóbal de las Casas gets 693 mm of precipitation in an average year, spread over about 86 days with measurable rain. That is more rainy days than 76% of Mexico.
June is the wettest month, with 139 mm. January is the driest, with 2 mm. September has the most rainy days, about 14.
The longest dry spell in the last five years lasted 33 days, to January 19, 2024.
From October 2025 to September 2026 San Cristóbal de las Casas got 1178 mm of rain, against a normal of 693 mm for those months. July 2026 had the most, with 560 mm.
San Cristóbal de las Casas weather by month
San Cristóbal de las Casas weather in January
In January, San Cristóbal de las Casas averages a high of 22°C and a low of 6°C. It gets 2 mm of precipitation over about 2 rainy days. Estimated sunshine is 62% of daylight hours, derived from ERA5 cloud cover. The January record high is 28°C (2024) and the record low is -8°C (1986). January is one of the most comfortable months to visit.
San Cristóbal de las Casas weather in February
In February, San Cristóbal de las Casas averages a high of 23°C and a low of 6°C. It gets 8 mm of precipitation over about 2 rainy days. Estimated sunshine is 74% of daylight hours, derived from ERA5 cloud cover. The February record high is 29°C (2024) and the record low is -2°C (1979). February is one of the most comfortable months to visit.
San Cristóbal de las Casas weather in March
In March, San Cristóbal de las Casas averages a high of 24°C and a low of 7°C. It gets 12 mm of precipitation over about 2 rainy days. Estimated sunshine is 66% of daylight hours, derived from ERA5 cloud cover. The March record high is 31°C (2024) and the record low is -4°C (1989). March is one of the most comfortable months to visit.
San Cristóbal de las Casas weather in April
In April, San Cristóbal de las Casas averages a high of 26°C and a low of 9°C. It gets 23 mm of precipitation over about 5 rainy days. Estimated sunshine is 56% of daylight hours, derived from ERA5 cloud cover. The April record high is 38°C (2026) and the record low is 0°C (1981). April is one of the most comfortable months to visit.
San Cristóbal de las Casas weather in May
In May, San Cristóbal de las Casas averages a high of 26°C and a low of 11°C. It gets 91 mm of precipitation over about 10 rainy days. Estimated sunshine is 39% of daylight hours, derived from ERA5 cloud cover. The May record high is 35°C (2026) and the record low is 0°C (1998). May is one of the most comfortable months to visit.
San Cristóbal de las Casas weather in June
In June, San Cristóbal de las Casas averages a high of 24°C and a low of 12°C. It gets 139 mm of precipitation over about 13 rainy days. Estimated sunshine is 21% of daylight hours, derived from ERA5 cloud cover. The June record high is 34°C (2026) and the record low is 6°C (1985).
San Cristóbal de las Casas weather in July
In July, San Cristóbal de las Casas averages a high of 24°C and a low of 11°C. It gets 95 mm of precipitation over about 12 rainy days. Estimated sunshine is 22% of daylight hours, derived from ERA5 cloud cover. The July record high is 33°C (2026) and the record low is 4°C (1991). July is one of the most comfortable months to visit.
San Cristóbal de las Casas weather in August
In August, San Cristóbal de las Casas averages a high of 24°C and a low of 11°C. It gets 116 mm of precipitation over about 12 rainy days. Estimated sunshine is 22% of daylight hours, derived from ERA5 cloud cover. The August record high is 33°C (2026) and the record low is 5°C (1978). August is one of the most comfortable months to visit.
San Cristóbal de las Casas weather in September
In September, San Cristóbal de las Casas averages a high of 24°C and a low of 12°C. It gets 120 mm of precipitation over about 14 rainy days. Estimated sunshine is 17% of daylight hours, derived from ERA5 cloud cover. The September record high is 33°C (2026) and the record low is 5°C (1977). September is one of the most comfortable months to visit.
San Cristóbal de las Casas weather in October
In October, San Cristóbal de las Casas averages a high of 23°C and a low of 11°C. It gets 54 mm of precipitation over about 9 rainy days. Estimated sunshine is 23% of daylight hours, derived from ERA5 cloud cover. The October record high is 30°C (2026) and the record low is -3°C (1978). October is one of the most comfortable months to visit.
San Cristóbal de las Casas weather in November
In November, San Cristóbal de las Casas averages a high of 22°C and a low of 8°C. It gets 23 mm of precipitation over about 4 rainy days. Estimated sunshine is 44% of daylight hours, derived from ERA5 cloud cover. The November record high is 29°C (1991) and the record low is -4°C (1984). November is one of the most comfortable months to visit.
San Cristóbal de las Casas weather in December
In December, San Cristóbal de las Casas averages a high of 22°C and a low of 6°C. It gets 9 mm of precipitation over about 2 rainy days. Estimated sunshine is 57% of daylight hours, derived from ERA5 cloud cover. The December record high is 28°C (1978) and the record low is -5°C (1980). December is one of the most comfortable months to visit.
Sunshine, humidity and wind in San Cristóbal de las Casas
February is the sunniest month in San Cristóbal de las Casas, with estimated sunshine of 74% of daylight hours from ERA5 cloud cover. September is the cloudiest, at 17%. The annual cloud-cover estimate is 42% of daylight hours; it is not a measurement of sunshine duration. San Cristóbal de las Casas is cloudier than 85% of Mexico.
Humidity peaks in September at 84% and is lowest in March at 60%.
First and last freeze in San Cristóbal de las Casas
The first fall freeze in San Cristóbal de las Casas typically comes around December 9, and the last spring freeze around February 28. That leaves a frost-free growing season of about 284 days.
San Cristóbal de las Casas weather records
These records cover SN. CRISTOBAL LAS CASAS CHIS during 1974–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the San Cristóbal de las Casas station is 38°C, on April 26, 2026. The coldest is -8°C, on January 29, 1986.
The wettest day in the available station history brought 136 mm of precipitation, on August 2, 2026.
20 all-time records have been set at the station since 1974.
The best time to visit San Cristóbal de las Casas
The most comfortable time to visit is typically January to May and July to December, when daytime highs sit near 24°C.
Winter (December–February) is warm, with average highs around 22°C and lows near 6°C.
Spring (March–May) is warm, with average highs around 25°C and lows near 9°C.
Summer (June–August) is warm, with average highs around 25°C and lows near 11°C. It can feel humid.
Autumn (September–November) is warm, with average highs around 23°C and lows near 10°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 6° | 22° | 2.3 mm | 2 | 70% | 62% | 28° | -8° |
| February | 6° | 23° | 7.6 mm | 2 | 62% | 74% | 29° | -2° |
| March | 7° | 24° | 12 mm | 2 | 60% | 66% | 31° | -4° |
| April | 9° | 26° | 23 mm | 5 | 62% | 56% | 38° | 0° |
| May | 11° | 26° | 91 mm | 10 | 71% | 39% | 35° | 0° |
| June | 12° | 24° | 139 mm | 13 | 81% | 21% | 34° | 6° |
| July | 11° | 24° | 95 mm | 12 | 79% | 22% | 33° | 4° |
| August | 11° | 24° | 116 mm | 12 | 81% | 22% | 33° | 5° |
| September | 12° | 24° | 120 mm | 14 | 84% | 17% | 33° | 5° |
| October | 11° | 23° | 54 mm | 9 | 81% | 23% | 30° | -3° |
| November | 8° | 22° | 23 mm | 4 | 78% | 44% | 29° | -4° |
| December | 6° | 22° | 8.6 mm | 2 | 72% | 57% | 28° | -5° |
Station: SN. CRISTOBAL LAS CASAS CHIS, 2 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1974–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
San Cristóbal de las Casas climate questions
How much rain does San Cristóbal de las Casas get?
San Cristóbal de las Casas gets 693 mm of precipitation in an average year, over about 86 rainy days.
What is the wettest month in San Cristóbal de las Casas?
June is the wettest month in San Cristóbal de las Casas, with 139 mm. January is the driest, with 2 mm.
How many rainy days does San Cristóbal de las Casas have a year?
San Cristóbal de las Casas has about 86 days with measurable rain in an average year. September has the most, about 14.
What is the hottest month in San Cristóbal de las Casas?
April is the warmest month in San Cristóbal de las Casas, with an average high of 26°C.
What is the coldest month in San Cristóbal de las Casas?
January is the coldest month in San Cristóbal de las Casas, with an average low of 6°C.
What is the record high temperature in San Cristóbal de las Casas?
Within the available 1974–2026 station history, the record high at the San Cristóbal de las Casas station is 38°C, set on April 26, 2026. The record low is -8°C, on January 29, 1986.
What is the sunniest month in San Cristóbal de las Casas?
February is the sunniest month in San Cristóbal de las Casas, with estimated sunshine of 74% of daylight hours from ERA5 cloud cover. September is the cloudiest.
When is the first frost in San Cristóbal de las Casas?
The first fall freeze in San Cristóbal de las Casas typically comes around December 9. The last spring freeze is around February 28.
What is the best time to visit San Cristóbal de las Casas?
The most comfortable time to visit is typically January to May and July to December, when daytime highs sit near 24°C.