San Cristóbal de las Casas weather in May
May in San Cristóbal de las Casas: nice, soaked — fine if you can take 21 rainy days.
#7 of 12 months in San Cristóbal de las Casas · #513 of 897 destinations to visit in May · comfort 81/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on San Cristóbal de las Casas in May
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San Cristóbal de las Casas climate normals — May
| Daytime high | 23°C / 74°F | 😎 nice |
|---|---|---|
| Nighttime low | 14°C / 57°F | |
| Rainfall | 237 mm / 9.3 in | ⛈ soaked |
| Rainy days | 21 days | |
| Humidity | 69% | 💧 humid |
| Dew point | 11°C / 52°F | |
| Sunshine | 11.1 h/day | |
| Daylight | 12.9 h | |
| Wind | 7 km/h / 4 mph | |
| Air quality (US AQI) | 81 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is San Cristóbal de las Casas?
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San Cristóbal de las Casas in May — FAQ
- Is May a good time to visit San Cristóbal de las Casas?
- May in San Cristóbal de las Casas: nice, soaked — fine if you can take 21 rainy days. It ranks #7 of 12 months for San Cristóbal de las Casas on SeasonMap's comfort score (81/100).
- What is the weather like in San Cristóbal de las Casas in May?
- In May, San Cristóbal de las Casas averages a daily high of 23.1°C and a low of 13.8°C, with about 237.1 mm of rain over roughly 20.8 rainy days.
- What is the air quality in San Cristóbal de las Casas in May?
- San Cristóbal de las Casas has a mean US Air Quality Index of about 81 in May.