December
December · January · February
Mexico · 1991–2020
December leads for comfortable weather in Santa Rosalía: typically 24.2°C by day, 1°C at night, with 3 mm of rain. Based on measured 1991–2020 NOAA station history.
December · January · February
October · September · June
January · December · February
The weakest month is July, scoring 55 against December’s 74 — days average 31.8°C, 8° 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 | 23.4°C | 1.1°C | 12 mm | 1.3 | 10 h 38 | 73 | Good coverage |
| February | 26°C | 2.4°C | 1 mm | 0.1 | 11 h 13 | 71 | Good coverage |
| March | 29.6°C | 5.2°C | 5 mm | 0.3 | 11 h 56 | 64 | Good coverage |
| April | 32.2°C | 8.7°C | 4 mm | 0.3 | 12 h 45 | 61 | Good coverage |
| May | 34.6°C | 11.9°C | 13 mm | 1.3 | 13 h 26 | 59 | Good coverage |
| June | 35.4°C | 15.7°C | 64 mm | 4 | 13 h 48 | 56 | Good coverage |
| July | 31.8°C | 15.3°C | 123 mm | 9.4 | 13 h 40 | 55 | Good coverage |
| August | 31.2°C | 14.8°C | 99 mm | 8.4 | 13 h 05 | 62 | Good coverage |
| September | 30.7°C | 13.1°C | 85 mm | 6.2 | 12 h 17 | 65 | Good coverage |
| October | 29.7°C | 8.6°C | 26 mm | 2.8 | 11 h 29 | 70 | Good coverage |
| November | 27.7°C | 3.8°C | 7 mm | 0.8 | 10 h 48 | 68 | Good coverage |
| December | 24.2°C | 1°C | 3 mm | 0.5 | 10 h 28 | 74 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 35.0°C26 Jan 2000 | -9.4°C7 Jan 1984 | 40 mm30 Jan 1984 | 76 mm1984 · driest 0 mm in 1991 | 28 |
| February | 35.6°C22 Feb 1999 | -6.1°C10 Feb 1982 | 15 mm4 Feb 1984 | 15 mm1984 · driest 0 mm in 2005 | 27 |
| March | 37.8°C24 Mar 1998 | -4.4°C7 Mar 1993 | 46 mm29 Mar 2004 | 65 mm2004 · driest 0 mm in 1999 | 28 |
| April | 40.6°C30 Apr 2002 | -3.3°C14 Apr 1980 | 35 mm30 Apr 2001 | 39 mm2001 · driest 0 mm in 1994 | 26 |
| May | 41.7°C19 May 1996 | -2.2°C5 May 2007 | 135 mm25 May 1986 | 174 mm1986 · driest 0 mm in 1996 | 28 |
| June | 43.9°C11 Jun 1981 | 7.8°C11 Jun 1994 | 80 mm26 Jun 2006 | 226 mm2000 · driest 0 mm in 2005 | 28 |
| July | 40.6°C3 Jul 1989 | 7.8°C30 Jul 1994 | 58 mm26 Jul 1985 | 244 mm1991 · driest 14 mm in 1983 | 28 |
| August | 38.9°C3 Aug 1980 | 7.8°C22 Aug 1995 | 67 mm23 Aug 2006 | 230 mm1989 · driest 37 mm in 2003 | 27 |
| September | 38.9°C11 Sep 2000 | 3.9°C28 Sep 1989 | 70 mm6 Sep 2006 | 294 mm1993 · driest 3 mm in 2002 | 28 |
| October | 38.9°C28 Oct 2000 | -2.2°C24 Oct 2007 | 48 mm20 Oct 1986 | 119 mm1986 · driest 0 mm in 1988 | 29 |
| November | 38.9°C1 Nov 1999 | -7.2°C23 Nov 1979 | 43 mm15 Nov 2004 | 55 mm2004 · driest 0 mm in 1986 | 29 |
| December | 33.9°C6 Dec 1987 | -14.4°C13 Dec 1997 | 20 mm14 Dec 1986 | 60 mm1986 · driest 0 mm in 2005 | 28 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 14 | 4 | 12 | <1 |
| February | 19 | 7 | 6 | <1 |
| March | 29 | 18 | 2 | <1 |
| April | 29 | 25 | <1 | <1 |
| May | 31 | 29 | <1 | <1 |
| June | 30 | 29 | 0 | 2 |
| July | 30 | 24 | 0 | 4 |
| August | 30 | 23 | 0 | 3 |
| September | 27 | 20 | 0 | 3 |
| October | 28 | 18 | <1 | <1 |
| November | 25 | 11 | 5 | <1 |
| December | 16 | 4 | 13 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 80% | 5% | 1% | 2% | 18.9–26.8°C |
| February | 92% | <1% | <1% | 0% | 23.1–28.5°C |
| March | 99% | <1% | <1% | 0% | 27.6–31.4°C |
| April | 98% | 2% | <1% | 1% | 29.5–33.8°C |
| May | 95% | 5% | 2% | 2% | 32.1–36.7°C |
| June | 87% | 13% | 7% | 17% | 33.3–37.8°C |
| July | 70% | 30% | 13% | 39% | 29.5–34.1°C |
| August | 69% | 31% | 13% | 38% | 29.5–33.6°C |
| September | 78% | 22% | 9% | 23% | 27.8–33.3°C |
| October | 90% | 10% | 4% | 8% | 26.6–32.5°C |
| November | 94% | 2% | <1% | 1% | 24.8–30.1°C |
| December | 88% | 3% | <1% | 1% | 21.3–26.6°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