December
December · January · February
Mexico · 1991–2020
December leads for comfortable weather in Bácum: typically 25.5°C by day, 7.4°C at night, with 16 mm of rain. Based on measured 1991–2020 NOAA station history.
December · January · February
October · June · November
December · January · February
The weakest month is August, scoring 22 against December’s 81 — days average 38.1°C, 14° above the 24°C the score treats as ideal.
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 | 25.9°C | 7°C | 14 mm | 1 | 10 h 34 | 79 | Good coverage |
| February | 26.5°C | 7.8°C | 10 mm | 1.4 | 11 h 11 | 79 | Good coverage |
| March | 29.3°C | 8.9°C | 1 mm | 0.2 | 11 h 55 | 72 | Good coverage |
| April | 32.4°C | 11°C | 1 mm | 0.3 | 12 h 47 | 65 | Good coverage |
| May | 36.6°C | 14.8°C | 0 mm | 0.1 | 13 h 30 | 58 | Good coverage |
| June | 38.8°C | 21.2°C | 5 mm | 0.6 | 13 h 52 | 40 | Good coverage |
| July | 38.6°C | 24.5°C | 84 mm | 6.2 | 13 h 43 | 25 | Good coverage |
| August | 38.1°C | 24.4°C | 107 mm | 7.8 | 13 h 07 | 22 | Good coverage |
| September | 37.4°C | 23.3°C | 93 mm | 4.3 | 12 h 17 | 32 | Good coverage |
| October | 34.9°C | 17.6°C | 28 mm | 1.5 | 11 h 28 | 59 | Good coverage |
| November | 30°C | 11.4°C | 15 mm | 1.2 | 10 h 45 | 73 | Good coverage |
| December | 25.5°C | 7.4°C | 16 mm | 1.4 | 10 h 24 | 81 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 35.6°C5 Jan 2006 | -1.1°C13 Jan 1989 | 72 mm14 Jan 2004 | 95 mm2004 · driest 0 mm in 2001 | 26 |
| February | 36.7°C26 Feb 2009 | -0.6°C5 Feb 2011 | 40 mm1 Feb 1989 | 82 mm1983 · driest 0 mm in 1994 | 26 |
| March | 38.9°C18 Mar 1997 | 2.8°C18 Mar 2008 | 33 mm3 Mar 1983 | 41 mm1983 · driest 0 mm in 1997 | 26 |
| April | 43.9°C12 Apr 2006 | 5.0°C1 Apr 2010 | 10 mm30 Apr 2004 | 17 mm2004 · driest 0 mm in 2010 | 26 |
| May | 43.9°C29 May 1997 | 6.7°C2 May 2010 | 1 mm26 May 2005 | 1 mm2005 · driest 0 mm in 2009 | 25 |
| June | 45.6°C3 Jun 2008 | 10.6°C6 Jun 1999 | 22 mm23 Jun 1984 | 23 mm1984 · driest 0 mm in 2004 | 25 |
| July | 45.0°C8 Jul 2006 | 17.8°C1 Jul 2004 | 106 mm23 Jul 1998 | 155 mm1999 · driest 8 mm in 1993 | 25 |
| August | 45.6°C30 Aug 2002 | 19.4°C23 Aug 1983 | 72 mm7 Aug 1998 | 225 mm1983 · driest 20 mm in 2002 | 25 |
| September | 45.0°C22 Sep 2005 | 16.1°C30 Sep 1989 | 124 mm30 Sep 2001 | 229 mm2007 · driest 2 mm in 2011 | 25 |
| October | 44.4°C5 Oct 1999 | 7.2°C30 Oct 2009 | 105 mm12 Oct 2009 | 248 mm2009 · driest 0 mm in 1982 | 25 |
| November | 41.7°C2 Nov 2005 | 1.1°C29 Nov 1992 | 38 mm12 Nov 1997 | 69 mm2011 · driest 0 mm in 2005 | 25 |
| December | 35.6°C4 Dec 2006 | -1.1°C31 Dec 1988 | 52 mm5 Dec 1994 | 100 mm1994 · driest 0 mm in 1996 | 25 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 22 | 4 | <1 |
| February | 20 | 6 | <1 |
| March | 28 | 16 | 0 |
| April | 30 | 24 | <1 |
| May | 31 | 30 | 0 |
| June | 30 | 30 | <1 |
| July | 31 | 31 | 3 |
| August | 31 | 31 | 3 |
| September | 30 | 29 | 2 |
| October | 31 | 29 | <1 |
| November | 28 | 17 | <1 |
| December | 19 | 5 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 91% | 5% | 1% | 2% | 23.3–27.7°C |
| February | 92% | 5% | 2% | 3% | 24.1–28.4°C |
| March | 99% | <1% | <1% | 0% | 27.6–31.0°C |
| April | 99% | 1% | <1% | 0% | 30.4–33.8°C |
| May | 100% | <1% | 0% | 0% | 34.1–37.9°C |
| June | 98% | 2% | <1% | 1% | 37.7–39.6°C |
| July | 79% | 21% | 8% | 21% | 36.6–39.7°C |
| August | 74% | 26% | 11% | 30% | 35.1–39.5°C |
| September | 86% | 14% | 6% | 9% | 35.5–39.1°C |
| October | 95% | 5% | 3% | 2% | 32.1–37.0°C |
| November | 96% | 4% | 2% | <1% | 27.4–32.0°C |
| December | 91% | 5% | 2% | 3% | 23.0–27.0°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