November
November · December · January
Mexico · 1991–2020
November leads for comfortable weather in San Marcos: typically 29.2°C by day, 11.8°C at night, with 13 mm of rain. Based on measured 1991–2020 NOAA station history.
November · December · January
November · October · May
December · January · November
The weakest month is August, scoring 39 against November’s 77 — 214 mm of rain falls, and days average 30.5°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 | 27.8°C | 7.4°C | 41 mm | 1.8 | 11 h 04 | 73 | Good coverage |
| February | 29.6°C | 7.9°C | 16 mm | 0.8 | 11 h 29 | 69 | Good coverage |
| March | 31.3°C | 8.3°C | 2 mm | 0.2 | 11 h 59 | 64 | Good coverage |
| April | 33.3°C | 9.8°C | 0 mm | 0 | 12 h 34 | 60 | Good coverage |
| May | 33.8°C | 13.4°C | 16 mm | 1.4 | 13 h 03 | 65 | Good coverage |
| June | 31.4°C | 17.3°C | 148 mm | 11.2 | 13 h 18 | 48 | Good coverage |
| July | 30.4°C | 17.2°C | 169 mm | 14.1 | 13 h 12 | 46 | Good coverage |
| August | 30.5°C | 16.9°C | 214 mm | 15.3 | 12 h 47 | 39 | Good coverage |
| September | 30.1°C | 17°C | 160 mm | 12.9 | 12 h 14 | 50 | Good coverage |
| October | 30.1°C | 15.2°C | 87 mm | 6.3 | 11 h 40 | 69 | Good coverage |
| November | 29.2°C | 11.8°C | 13 mm | 0.9 | 11 h 11 | 77 | Good coverage |
| December | 28.2°C | 8.5°C | 6 mm | 0.6 | 10 h 58 | 74 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 36.7°C28 Jan 2009 | -1.1°C24 Jan 1955 | 172 mm25 Jan 1992 | 570 mm1992 · driest 0 mm in 2011 | 62 |
| February | 40.0°C26 Feb 2009 | -0.6°C22 Feb 1990 | 81 mm3 Feb 2010 | 210 mm2010 · driest 0 mm in 1996 | 63 |
| March | 38.9°C22 Mar 2008 | 0.0°C20 Mar 1947 | 138 mm4 Mar 1968 | 229 mm1968 · driest 0 mm in 1986 | 63 |
| April | 45.0°C25 Apr 2008 | 1.1°C14 Apr 1947 | 35 mm17 Apr 1959 | 65 mm1959 · driest 0 mm in 1974 | 64 |
| May | 41.7°C3 May 2008 | 0.6°C9 May 1979 | 66 mm29 May 1974 | 138 mm1974 · driest 0 mm in 1994 | 64 |
| June | 41.7°C5 Jun 2009 | 8.9°C2 Jun 2002 | 100 mm24 Jun 1962 | 359 mm1958 · driest 13 mm in 2005 | 65 |
| July | 40.0°C17 Jul 2009 | 10.0°C30 Jul 2006 | 90 mm18 Jul 1952 | 333 mm1952 · driest 87 mm in 2002 | 64 |
| August | 38.9°C2 Aug 2009 | 10.0°C6 Aug 2007 | 113 mm22 Aug 1969 | 401 mm1969 · driest 93 mm in 1950 | 65 |
| September | 37.8°C20 Sep 2009 | 10.0°C26 Sep 1975 | 153 mm5 Sep 1999 | 323 mm1976 · driest 70 mm in 1974 | 63 |
| October | 40.0°C5 Oct 2009 | 3.9°C22 Oct 1952 | 141 mm3 Oct 1969 | 275 mm1959 · driest 1 mm in 1999 | 64 |
| November | 36.7°C2 Nov 2009 | 2.2°C27 Nov 1979 | 127 mm11 Nov 1997 | 134 mm1997 · driest 0 mm in 1993 | 64 |
| December | 36.7°C19 Dec 2007 | -3.3°C22 Dec 1999 | 57 mm15 Dec 1965 | 112 mm1965 · driest 0 mm in 2004 | 65 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 26 | 7 | <1 |
| February | 26 | 15 | <1 |
| March | 30 | 25 | <1 |
| April | 30 | 28 | 0 |
| May | 31 | 29 | <1 |
| June | 28 | 23 | 5 |
| July | 30 | 20 | 6 |
| August | 30 | 20 | 7 |
| September | 28 | 17 | 5 |
| October | 30 | 17 | 2 |
| November | 29 | 12 | <1 |
| December | 26 | 9 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 95% | 5% | 2% | 4% | 25.8–29.2°C |
| February | 98% | 2% | <1% | <1% | 27.6–30.7°C |
| March | 99% | 1% | <1% | <1% | 29.8–32.3°C |
| April | 99% | 1% | <1% | <1% | 31.5–34.2°C |
| May | 94% | 6% | 2% | 6% | 32.0–34.7°C |
| June | 61% | 39% | 18% | 59% | 29.0–33.0°C |
| July | 49% | 51% | 20% | 76% | 27.9–30.3°C |
| August | 50% | 49% | 21% | 74% | 28.3–30.0°C |
| September | 55% | 45% | 18% | 64% | 27.8–30.3°C |
| October | 79% | 21% | 8% | 18% | 27.8–30.2°C |
| November | 95% | 5% | 2% | 1% | 27.6–30.2°C |
| December | 96% | 4% | 1% | 2% | 26.0–29.4°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