San Cristóbal de Las Casas Weather in May
May in San Cristóbal de Las Casas sees daytime temperatures around 27°C (81°F) and lows of 16°C (61°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.
Rainfall in San Cristóbal de Las Casas in May
San Cristóbal de Las Casas is in the rainy season in May, with rain on around 12 days and an average of 242 mm (9.5 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.
Temperature in San Cristóbal de Las Casas in May
In May, San Cristóbal de Las Casas gets high temperatures, with highs of 27°C (81°F). Nights cool to around 16°C (61°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in San Cristóbal de Las Casas in May
The area experiences a moderate amount of sunshine, with approximately 169 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.For San Cristóbal de Las Casas itself, January, February, March, April, November and December generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our San Cristóbal de Las Casas's climate page.
San Cristóbal de Las Casas Temperature in May
Min Temperature
16°C (61°F)
Max Temperature
27°C (81°F)
Chance of Rain
41%
Precipitation
242 mm (9.5 in)
Rainy days
12 days
Humidity
78%
Sunshine
169 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in San Cristóbal de Las Casas typically stay consistent throughout May, with daily highs averaging around 27°C (81°F). Nights are cool, with lows typically ranging from 12°C (54°F) to 15°C (59°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for San Cristóbal de Las Casas in May
Browse day-by-day weather records for San Cristóbal de Las Casas spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Cristóbal de Las Casas historical weather extremes in May
Based on weather observations in San Cristóbal de Las Casas between 1976 and 2026, these are the recorded extremes during May.
- San Cristóbal de Las Casas recorded its highest May temperature of 39°C (102°F) on May 18, 2016.
- The coldest May day was on May 30, 2004, with a maximum of 16°C (61°F).
- San Cristóbal de Las Casas registered its coldest May night on May 14, 1981, with temperatures dropping to 2°C (36°F).
Best Places in Mexico in May
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in May →
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What to Wear in San Cristóbal de Las Casas in May
Warm weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in San Cristóbal de Las Casas in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our San Cristóbal de Las Casas's climate page.
Temperature Rainfall Sunshine Humidity
See the full San Cristóbal de Las Casas climate overview or explore weather in Mexico.
