San Cristóbal de las Casas weather in December
December in San Cristóbal de las Casas: nice, dry, with clean air — an excellent time to visit.
#5 of 12 months in San Cristóbal de las Casas · #51 of 897 destinations to visit in December · comfort 91/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on San Cristóbal de las Casas in December
No notes yet. Open San Cristóbal de las Casas on the map to add the first one.
San Cristóbal de las Casas climate normals — December
| Daytime high | 20°C / 68°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 52°F | |
| Rainfall | 22 mm / 0.9 in | ☀️ dry |
| Rainy days | 3 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 9.9 h/day | |
| Daylight | 11.2 h | |
| Wind | 8 km/h / 5 mph | |
| Air quality (US AQI) | 30 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is San Cristóbal de las Casas?
Loading map…
San Cristóbal de las Casas in December — FAQ
- Is December a good time to visit San Cristóbal de las Casas?
- December in San Cristóbal de las Casas: nice, dry, with clean air — an excellent time to visit. It ranks #5 of 12 months for San Cristóbal de las Casas on SeasonMap's comfort score (91/100).
- What is the weather like in San Cristóbal de las Casas in December?
- In December, San Cristóbal de las Casas averages a daily high of 20.2°C and a low of 10.9°C, with about 22 mm of rain over roughly 2.6 rainy days.
- What is the air quality in San Cristóbal de las Casas in December?
- San Cristóbal de las Casas has a mean US Air Quality Index of about 30 in December.