Climate averages 1991–2020
San Cristóbal de las Casas weather
in July.
A mild, very wet month: the joint 5th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a mild month in San Cristóbal de las Casas: daytime highs average 21.0°C and nights cool to about 12.8°C. By daytime temperature it is the joint 5th warmest of the 12 months.
Expect about 300 mm of rain on roughly 22 days, which makes July a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 01 min on an average July day.
The nearest other city in this atlas is Tuxtla (51 km away). In July its highs average 29.5°C, 8.5°C warmer than San Cristóbal de las Casas, with 294 mm of rain.
Among the 153 cities listed in Mexico, San Cristóbal de las Casas ranks joint 147th of 153 for the warmest July highs and 146th of 153 for the driest July (rainfall, lowest first). The mean July high of those 153 cities is 28.0°C; San Cristóbal de las Casas is 7.0°C cooler than that mean.
From July to August, average highs stay level at 21.0°C, and monthly rainfall rises from 300 mm to 363 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
San Cristóbal de las Casas climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.6°C9.7°C | 9.7°C | 12 | 2.6 | 11.211 h |
| February | 21.3°C10.1°C | 10.1°C | 7.3 | 1.8 | 11.612 h |
| March | 22.9°C11.0°C | 11.0°C | 17 | 3.7 | 12.012 h |
| April | 23.4°C12.2°C | 12.2°C | 50 | 8.6 | 12.513 h |
| May | 22.2°C13.0°C | 13.0°C | 223 | 19.2 | 12.913 h |
| June | 20.8°C13.3°C | 13.3°C | 486 | 25.7 | 13.113 h |
| July, selected | 21.0°C12.8°C | 12.8°C | 300 | 21.6 | 13.013 h |
| August | 21.0°C12.9°C | 12.9°C | 363 | 23.2 | 12.713 h |
| September | 20.3°C13.1°C | 13.1°C | 429 | 26.3 | 12.212 h |
| October | 19.9°C12.5°C | 12.5°C | 230 | 18.1 | 11.812 h |
| November | 19.5°C11.1°C | 11.1°C | 58 | 7.9 | 11.411 h |
| December | 19.7°C10.2°C | 10.2°C | 18 | 2.5 | 11.211 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Tuxtla in JulyMexico · 51 kmHigh 29.5°C · Low 21.2°C · 294 mm rain
- Comitán in JulyMexico · 76 kmHigh 24.3°C · Low 15.8°C · 127 mm rain
- Villahermosa in JulyMexico · 143 kmHigh 32.9°C · Low 25.0°C · 138 mm rain
- Cárdenas, Mexico in JulyMexico · 162 kmHigh 32.3°C · Low 24.5°C · 164 mm rain
- Paraiso in JulyMexico · 196 kmHigh 32.5°C · Low 25.4°C · 103 mm rain
- Huehuetenango in JulyGuatemala · 200 kmHigh 21.7°C · Low 12.4°C · 117 mm rain
- Tapachula in JulyMexico · 207 kmHigh 28.9°C · Low 20.8°C · 506 mm rain
- Malacatán in JulyGuatemala · 212 kmHigh 27.3°C · Low 18.2°C · 325 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for San Cristóbal de las Casas) is explained once on the San Cristóbal de las Casas year overview and on the Sources, method and limits page.