Mexico · 1991–2020

Best time to visit
San Marcos.

January leads for comfortable weather in San Marcos: typically 29.2°C by day, 15.8°C at night, with 33 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJanuary

Typical high29.2°C

Typical low15.8°C

Rain in January33 mm

Comfort

January

January · December · February

82climate match

Beach

December

December · January · November

87climate match

Outdoors

January

January · December · February

62climate match

The weakest month is June, scoring 24 against January’s 82 — days average 35.4°C, 11° above the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

8229.2° / 15.8°

Feb

7331.3° / 16.4°

Mar

6234° / 17.7°

Apr

4936.3° / 19.9°

May

3437° / 21.5°

Jun

2435.4° / 22.1°

Jul

2934.6° / 21.4°

Aug

2734.6° / 21.5°

Sep

2433.3° / 21.5°

Oct

3932.3° / 20.5°

Nov

7030.2° / 17.8°

Dec

8128.9° / 16.5°

Monthly climate evidence for San Marcos — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	29.2°C	15.8°C	33 mm	2.9	11 h 02	82	Good coverage
February	31.3°C	16.4°C	34 mm	2.7	11 h 27	73	Good coverage
March	34°C	17.7°C	37 mm	2.7	11 h 59	62	Good coverage
April	36.3°C	19.9°C	45 mm	2.9	12 h 35	49	Good coverage
May	37°C	21.5°C	106 mm	5.2	13 h 05	34	Good coverage
June	35.4°C	22.1°C	175 mm	9.5	13 h 21	24	Good coverage
July	34.6°C	21.4°C	156 mm	11.5	13 h 15	29	Good coverage
August	34.6°C	21.5°C	167 mm	11.8	12 h 49	27	Good coverage
September	33.3°C	21.5°C	223 mm	10.9	12 h 14	24	Good coverage
October	32.3°C	20.5°C	159 mm	9.9	11 h 39	39	Good coverage
November	30.2°C	17.8°C	64 mm	3.7	11 h 09	70	Good coverage
December	28.9°C	16.5°C	30 mm	3.2	10 h 55	81	Good coverage

Records at AKIL, 1977–2008
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	38.9°C15 Jan 2007	2.8°C16 Jan 1978	57 mm10 Jan 2006	89 mm2006 · driest 0 mm in 1987	30
February	41.1°C19 Feb 1998	5.0°C7 Feb 1978	86 mm8 Feb 2007	132 mm2007 · driest 0 mm in 1995	30
March	42.2°C8 Mar 1998	3.9°C2 Mar 1986	64 mm15 Mar 1997	98 mm1978 · driest 0 mm in 1999	30
April	45.0°C8 Apr 1998	8.9°C13 Apr 1988	83 mm27 Apr 2001	170 mm1989 · driest 0 mm in 2006	30
May	42.8°C27 May 1998	10.6°C5 May 2005	121 mm29 May 2007	288 mm1986 · driest 0 mm in 1995	29
June	41.7°C15 Jun 1998	15.6°C4 Jun 1993	185 mm20 Jun 1988	452 mm1988 · driest 23 mm in 2004	30
July	40.6°C4 Jul 1996	14.4°C23 Jul 2005	99 mm8 Jul 1999	356 mm1999 · driest 37 mm in 1986	30
August	39.4°C11 Aug 2004	13.9°C8 Aug 2005	113 mm3 Aug 2001	329 mm1990 · driest 78 mm in 1983	29
September	38.9°C19 Sep 1996	15.6°C5 Sep 1994	206 mm22 Sep 2002	757 mm2002 · driest 29 mm in 1996	30
October	37.8°C1 Oct 1998	10.6°C30 Oct 1987	124 mm6 Oct 1992	334 mm1995 · driest 31 mm in 1977	30
November	36.7°C23 Nov 2000	9.4°C7 Nov 1985	186 mm26 Nov 1992	244 mm1992 · driest 4 mm in 1995	30
December	36.7°C24 Dec 1994	6.7°C12 Dec 1990	55 mm3 Dec 1991	110 mm1983 · driest 0 mm in 2007	29

Typical days per month at AKIL, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	29	16	<1
February	27	21	1
March	31	28	1
April	30	29	1
May	31	31	3
June	30	29	5
July	31	30	5
August	31	31	5
September	29	27	5
October	31	28	5
November	30	19	1
December	30	14	<1

How often, not how much — every day in AKIL’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	90%	10%	3%	6%	27.2–31.2°C
February	90%	10%	4%	6%	28.9–33.3°C
March	91%	9%	4%	4%	31.1–35.4°C
April	90%	10%	5%	5%	33.6–37.6°C
May	82%	18%	9%	20%	34.5–38.6°C
June	68%	33%	16%	42%	33.2–37.0°C
July	60%	40%	18%	57%	32.7–35.8°C
August	59%	41%	17%	60%	32.9–35.2°C
September	60%	40%	19%	55%	32.0–34.6°C
October	70%	31%	12%	34%	30.6–33.5°C
November	86%	14%	5%	10%	28.2–31.9°C
December	87%	13%	3%	7%	27.3–30.5°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.

1977Each stripe is one year’s mean temperature against the 24-year average. Warmest: 1998. Coolest: 1993.2007

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 8874784
NOAA station: MXN00031060 · AKIL
Station distance: 4.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 20.20°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from AKIL is what differs

Tecax→Kancab→Pencuyut→Xohuayan→Canek→Chacmultun→

Or put two places side by side: San Marcos vs Tecax

Best time to visitSan Marcos.

January

December

January

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
San Marcos.

The whole year,
without the guesswork.

Nearby, measured,
and named.