March
March · April · November
Mexico · 1991–2020
March leads for comfortable weather in San Cristóbal de las Casas: typically 24.6°C by day, 7°C at night, with 14 mm of rain. Based on measured 1991–2020 NOAA station history.
March · April · November
April · March · May
November · January · December
The weakest month is June, scoring 62 against March’s 84 — 183 mm of rain falls.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 21.7°C | 5.9°C | 3 mm | 1 | 11 h 14 | 76 | Good coverage |
| February | 23.1°C | 5.7°C | 10 mm | 1.6 | 11 h 34 | 80 | Good coverage |
| March | 24.6°C | 7°C | 14 mm | 1.7 | 12 h | 84 | Good coverage |
| April | 25.8°C | 8.7°C | 28 mm | 4.2 | 12 h 30 | 82 | Good coverage |
| May | 25.5°C | 10.7°C | 101 mm | 9.1 | 12 h 54 | 73 | Good coverage |
| June | 24.5°C | 11.8°C | 183 mm | 13.9 | 13 h 07 | 62 | Good coverage |
| July | 24.4°C | 11°C | 111 mm | 11 | 13 h 02 | 74 | Good coverage |
| August | 24.5°C | 11.4°C | 134 mm | 11.3 | 12 h 41 | 70 | Good coverage |
| September | 24.2°C | 11.9°C | 145 mm | 13.9 | 12 h 13 | 69 | Good coverage |
| October | 23°C | 10.6°C | 66 mm | 8.4 | 11 h 44 | 79 | Good coverage |
| November | 22.1°C | 7.8°C | 31 mm | 3.1 | 11 h 20 | 81 | Good coverage |
| December | 21.8°C | 6.2°C | 13 mm | 1.5 | 11 h 08 | 77 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 28.2°C26 Jan 2024 | -4.0°C11 Jan 2002 | 9 mm20 Jan 1998 | 15 mm2022 · driest 0 mm in 2001 | 27 |
| February | 29.0°C24 Feb 1979 | -2.2°C10 Feb 1992 | 40 mm26 Feb 1983 | 61 mm2012 · driest 0 mm in 1992 | 33 |
| March | 31.1°C9 Mar 2024 | -4.6°C14 Mar 1989 | 46 mm31 Mar 1979 | 61 mm2012 · driest 0 mm in 2009 | 34 |
| April | 38.1°C26 Apr 2026 | 0.0°C25 Apr 1998 | 50 mm10 Apr 1990 | 142 mm1990 · driest 0 mm in 1983 | 30 |
| May | 35.0°C12 May 2026 | 0.0°C14 May 1981 | 83 mm30 May 2013 | 276 mm2019 · driest 0 mm in 1983 | 33 |
| June | 34.6°C17 Jun 2026 | 5.4°C7 Jun 1985 | 99 mm3 Jun 2003 | 252 mm2005 · driest 44 mm in 2022 | 30 |
| July | 32.8°C29 Jul 2026 | 4.4°C9 Jul 1991 | 100 mm7 Jul 2013 | 267 mm2013 · driest 15 mm in 2023 | 31 |
| August | 28.0°C6 Aug 2023 | 5.0°C1 Aug 1978 | 99 mm16 Aug 2013 | 231 mm2012 · driest 31 mm in 2003 | 28 |
| September | 31.5°C17 Sep 1983 | 6.0°C30 Sep 1983 | 59 mm6 Sep 2023 | 237 mm2015 · driest 47 mm in 2008 | 29 |
| October | 28.8°C19 Oct 2006 | -3.0°C22 Oct 1978 | 53 mm20 Oct 2013 | 165 mm2019 · driest 5 mm in 1978 | 33 |
| November | 29.2°C29 Nov 1991 | -2.0°C25 Nov 2005 | 29 mm7 Nov 2020 | 57 mm2020 · driest 0 mm in 2008 | 32 |
| December | 27.6°C18 Dec 2012 | -5.2°C27 Dec 1989 | 63 mm5 Dec 2005 | 78 mm2005 · driest 0 mm in 2014 | 24 |
| Month | Days 25°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 1 | <1 | 0 |
| February | 5 | <1 | <1 |
| March | 12 | <1 | <1 |
| April | 20 | 0 | <1 |
| May | 20 | 0 | 3 |
| June | 11 | 0 | 5 |
| July | 10 | 0 | 3 |
| August | 12 | 0 | 4 |
| September | 11 | 0 | 4 |
| October | 5 | 0 | 2 |
| November | 4 | <1 | <1 |
| December | 2 | <1 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 81% | 4% | 0% | 0% | 21.0–22.8°C |
| February | 86% | 6% | 1% | <1% | 21.6–24.3°C |
| March | 90% | 6% | 2% | 3% | 23.4–25.8°C |
| April | 85% | 15% | 4% | 14% | 24.2–27.4°C |
| May | 69% | 31% | 12% | 38% | 24.3–26.4°C |
| June | 52% | 49% | 20% | 65% | 23.1–25.6°C |
| July | 65% | 36% | 11% | 44% | 23.5–25.3°C |
| August | 61% | 39% | 16% | 55% | 23.1–25.3°C |
| September | 50% | 48% | 17% | 70% | 22.6–25.3°C |
| October | 69% | 26% | 6% | 29% | 21.5–24.5°C |
| November | 76% | 11% | 3% | 3% | 21.2–23.2°C |
| December | 77% | 6% | <1% | <1% | 20.3–22.8°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page