Monthly climate guide
San Cristóbal de Las Casas weather in December
Expect warm weather in San Cristóbal de Las Casas in December: afternoons reach about 24°C (75°F), while nights drop to around 12°C (53°F). Around 22 mm of rain falls over the month (fairly dry), and skies are a mix of sun and cloud. Daytime highs are about the same as November and about the same as January.
What stands out in December
- Just 100 km apart, but San Cristóbal de Las Casas runs about 4°C cooler than Querétaro this month.
- It's one of the drier stretches of the year in San Cristóbal de Las Casas.
- Only one month is cooler in San Cristóbal de Las Casas than December.
- Rain is well below San Cristóbal de Las Casas's usual level (around 80% less).
Avg high
24°C
75°F
Avg low
12°C
53°F
Rainfall
22 mm
fairly dry
Humidity
81%
relative
Sky
41%
cloud · a mix of sun and cloud
San Cristóbal de Las Casas weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 24°C / 76°F | 11°C / 52°F | 18 mm | 77% | 45% |
| February | 27°C / 80°F | 12°C / 54°F | 13 mm | 71% | 37% |
| March | 29°C / 85°F | 13°C / 56°F | 22 mm | 64% | 37% |
| April | 31°C / 87°F | 15°C / 60°F | 39 mm | 63% | 44% |
| May | 29°C / 84°F | 17°C / 62°F | 140 mm | 72% | 66% |
| June | 25°C / 77°F | 16°C / 61°F | 243 mm | 83% | 80% |
| July | 26°C / 79°F | 15°C / 59°F | 131 mm | 80% | 72% |
| August | 26°C / 78°F | 15°C / 60°F | 212 mm | 82% | 73% |
| September | 24°C / 76°F | 16°C / 60°F | 269 mm | 86% | 81% |
| October | 24°C / 75°F | 15°C / 59°F | 173 mm | 86% | 71% |
| November | 24°C / 74°F | 13°C / 55°F | 44 mm | 84% | 52% |
| December | 24°C / 75°F | 12°C / 53°F | 22 mm | 81% | 41% |
What to pack for December
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- An extra layer — evenings are noticeably cooler than afternoons
Is December a good time to visit San Cristóbal de Las Casas?
Compare the months in the chart above to find your ideal window.
Best time to visit San Cristóbal de Las Casas →Other Mexico cities in December
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San Cristóbal de Las Casas weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/mexico/san-cristobal-de-las-casas/december
<a href="https://weathercompare.eu/weather/mexico/san-cristobal-de-las-casas/december">San Cristóbal de Las Casas weather in December</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/mexico/san-cristobal-de-las-casas" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="San Cristóbal de Las Casas weather in December"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/mexico/san-cristobal-de-las-casas/december">San Cristóbal de Las Casas weather in December</a> – WeatherCompare</p>
San Cristóbal de Las Casas in December: quick answers
Is December a good time to visit San Cristóbal de Las Casas?
Yes. December is one of the best months for San Cristóbal de Las Casas, with highs around 24°C and about 22 mm of rain.
How warm is San Cristóbal de Las Casas in December?
Average highs are about 24°C (75°F) and average lows about 12°C (53°F), based on 10 years of daily data.
Does it rain a lot in San Cristóbal de Las Casas in December?
San Cristóbal de Las Casas typically gets around 22 mm of rain in December — fairly dry.
Figures are long-term averages for the area around San Cristóbal de Las Casas (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.