December
December · January · November
Mexico · 1991–2020
December leads for comfortable weather in Santa Isabel: typically 27°C by day, 8.1°C at night, with 16 mm of rain. Based on measured 1991–2020 NOAA station history.
December · January · November
October · November · May
December · January · November
The weakest month is July, scoring 25 against December’s 78 — 270 mm of rain falls, and days average 31.1°C, 7° 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 | 26.8°C | 7.1°C | 21 mm | 1.5 | 10 h 58 | 77 | Good coverage |
| February | 28.6°C | 8°C | 18 mm | 1.2 | 11 h 25 | 72 | Good coverage |
| March | 31.3°C | 8.8°C | 3 mm | 0.2 | 11 h 58 | 65 | Good coverage |
| April | 33.4°C | 11.6°C | 3 mm | 0.3 | 12 h 36 | 63 | Good coverage |
| May | 34.8°C | 14.1°C | 9 mm | 0.8 | 13 h 08 | 63 | Good coverage |
| June | 33.9°C | 18.1°C | 155 mm | 10.2 | 13 h 25 | 39 | Good coverage |
| July | 31.1°C | 18.4°C | 270 mm | 17 | 13 h 18 | 25 | Good coverage |
| August | 31°C | 18.2°C | 229 mm | 16.1 | 12 h 51 | 32 | Good coverage |
| September | 30.7°C | 18.6°C | 187 mm | 12.5 | 12 h 14 | 41 | Good coverage |
| October | 30.1°C | 16.1°C | 54 mm | 5 | 11 h 38 | 73 | Good coverage |
| November | 28.8°C | 11.2°C | 9 mm | 1.1 | 11 h 06 | 77 | Good coverage |
| December | 27°C | 8.1°C | 16 mm | 1.3 | 10 h 51 | 78 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 38.3°C19 Jan 1942 | -1.1°C2 Jan 2011 | 51 mm22 Jan 1961 | 268 mm1992 · driest 0 mm in 1994 | 89 |
| February | 40.6°C21 Feb 1943 | 0.6°C21 Feb 1990 | 49 mm25 Feb 1987 | 154 mm2010 · driest 0 mm in 1926 | 87 |
| March | 41.1°C27 Mar 1942 | 0.6°C15 Mar 1929 | 64 mm4 Mar 1968 | 116 mm1968 · driest 0 mm in 1936 | 88 |
| April | 42.8°C24 Apr 2012 | 0.6°C30 Apr 1940 | 48 mm13 Apr 1959 | 79 mm1959 · driest 0 mm in 2007 | 87 |
| May | 42.2°C13 May 1944 | 5.6°C10 May 1933 | 57 mm19 May 2009 | 165 mm1956 · driest 0 mm in 2003 | 85 |
| June | 42.8°C5 Jun 1946 | 9.4°C1 Jun 1988 | 85 mm2 Jun 1952 | 428 mm2004 · driest 22 mm in 1983 | 88 |
| July | 40.6°C13 Jul 1944 | 12.8°C7 Jul 1925 | 158 mm21 Jul 2002 | 430 mm1998 · driest 126 mm in 1943 | 86 |
| August | 40.6°C24 Aug 1944 | 11.7°C23 Aug 1925 | 118 mm4 Aug 1935 | 363 mm1926 · driest 100 mm in 1951 | 85 |
| September | 40.0°C22 Sep 1942 | 7.8°C15 Sep 1934 | 126 mm24 Sep 1955 | 367 mm2004 · driest 23 mm in 1953 | 87 |
| October | 41.7°C4 Oct 2012 | 5.6°C26 Oct 2010 | 87 mm16 Oct 1934 | 165 mm1930 · driest 0 mm in 1987 | 86 |
| November | 40.0°C29 Nov 1941 | 2.8°C30 Nov 1934 | 47 mm15 Nov 2013 | 98 mm1930 · driest 0 mm in 1967 | 87 |
| December | 37.8°C23 Dec 1942 | 0.0°C31 Dec 1931 | 56 mm31 Dec 2009 | 152 mm2013 · driest 0 mm in 1949 | 87 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 25 | 8 | <1 |
| February | 26 | 14 | <1 |
| March | 29 | 25 | <1 |
| April | 29 | 28 | <1 |
| May | 31 | 31 | <1 |
| June | 30 | 29 | 5 |
| July | 31 | 26 | 9 |
| August | 31 | 27 | 9 |
| September | 29 | 24 | 6 |
| October | 30 | 23 | 2 |
| November | 29 | 16 | <1 |
| December | 25 | 9 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 95% | 5% | 2% | 5% | 25.8–30.5°C |
| February | 96% | 4% | 2% | 2% | 27.0–31.8°C |
| March | 99% | <1% | <1% | <1% | 29.4–33.6°C |
| April | 99% | <1% | <1% | <1% | 31.8–35.8°C |
| May | 96% | 4% | 1% | 4% | 33.8–36.5°C |
| June | 65% | 35% | 18% | 55% | 32.1–35.4°C |
| July | 44% | 57% | 28% | 83% | 29.5–33.1°C |
| August | 50% | 50% | 23% | 74% | 29.7–33.3°C |
| September | 60% | 40% | 17% | 53% | 29.7–32.7°C |
| October | 85% | 15% | 6% | 15% | 29.4–33.2°C |
| November | 96% | 4% | 1% | 3% | 27.6–32.5°C |
| December | 94% | 6% | 2% | 4% | 25.7–30.4°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