San Cristóbal de las Casas Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 63 °F17 °C Feb 66 °F19 °C Mar 66 °F19 °C Apr 70 °F21 °C May 70 °F21 °C Jun 66 °F19 °C Jul 66 °F19 °C Aug 66 °F19 °C Sep 64 °F18 °C Oct 64 °F18 °C Nov 64 °F18 °C Dec 64 °F18 °C Humidity Jan 86% Feb 83% Mar 82% Apr 81% May 94% Jun 100% Jul 93% Aug 95% Sep 99% Oct 99% Nov 90% Dec 84% Rain Jan 126mm Feb 155mm Mar 138mm Apr 176mm May 437mm Jun 520mm Jul 342mm Aug 435mm Sep 445mm Oct 484mm Nov 120mm Dec 129mm Clouds Jan 51% Feb 47% Mar 53% Apr 46% May 73% Jun 88% Jul 71% Aug 68% Sep 85% Oct 88% Nov 62% Dec 53% Sun Jan 8UVI Feb 10UVI Mar 11UVI Apr 12UVI May 9UVI Jun 7UVI Jul 9UVI Aug 9UVI Sep 8UVI Oct 7UVI Nov 8UVI Dec 7UVI