Mexico · 1991–2020

Best time to visit
San Martín Comalapa.

February leads for comfortable weather in San Martín Comalapa: typically 23.5°C by day, 12°C at night, with 44 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortFebruary

Typical high23.5°C

Typical low12°C

Rain in February44 mm

Comfort

February

February · March · December

89climate match

Beach

April

April · March · February

67climate match

Outdoors

January

January · December · February

84climate match

The weakest month is June, scoring 30 against February’s 89 — 362 mm of rain falls.

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

8222.1° / 11.5°

Feb

8923.5° / 12°

Mar

8525.7° / 12.8°

Apr

7827.7° / 14.2°

May

6328.1° / 15.5°

Jun

3027.4° / 15.9°

Jul

4126.4° / 15.9°

Aug

3626.6° / 15.8°

Sep

3525.9° / 15.8°

Oct

6224.8° / 14.7°

Nov

8123.4° / 12.9°

Dec

8422.2° / 11.7°

Monthly climate evidence for San Martín Comalapa — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	22.1°C	11.5°C	52 mm	6.6	11 h 05	82	Good coverage
February	23.5°C	12°C	44 mm	6	11 h 29	89	Good coverage
March	25.7°C	12.8°C	56 mm	5.3	11 h 59	85	Good coverage
April	27.7°C	14.2°C	73 mm	6.2	12 h 33	78	Good coverage
May	28.1°C	15.5°C	158 mm	9.2	13 h 02	63	Good coverage
June	27.4°C	15.9°C	362 mm	15.4	13 h 17	30	Good coverage
July	26.4°C	15.9°C	310 mm	15.2	13 h 11	41	Good coverage
August	26.6°C	15.8°C	345 mm	14.8	12 h 47	36	Good coverage
September	25.9°C	15.8°C	361 mm	15.9	12 h 14	35	Good coverage
October	24.8°C	14.7°C	229 mm	12.1	11 h 40	62	Good coverage
November	23.4°C	12.9°C	90 mm	8.8	11 h 12	81	Good coverage
December	22.2°C	11.7°C	44 mm	6.6	10 h 58	84	Good coverage

Records at COSAUTLAN, 1976–2011
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	36.7°C21 Jan 2010	5.0°C29 Jan 1986	47 mm31 Jan 1992	207 mm1992 · driest 0 mm in 1995	35
February	35.6°C7 Feb 2010	3.9°C22 Feb 1989	48 mm3 Feb 2007	156 mm2007 · driest 0 mm in 1995	35
March	38.9°C30 Mar 1991	5.0°C3 Mar 1980	161 mm11 Mar 2008	189 mm2008 · driest 7 mm in 2010	34
April	37.8°C11 Apr 2009	5.0°C1 Apr 1987	68 mm30 Apr 2006	185 mm1979 · driest 0 mm in 1999	36
May	38.9°C8 May 2010	7.8°C7 May 1999	116 mm26 May 1980	330 mm2001 · driest 1 mm in 1998	36
June	37.8°C5 Jun 2010	8.9°C17 Jun 1999	144 mm24 Jun 1991	742 mm1981 · driest 143 mm in 2005	36
July	35.6°C3 Jul 2010	10.0°C11 Jul 1994	153 mm1 Jul 2011	632 mm2010 · driest 130 mm in 2007	35
August	33.9°C23 Aug 2008	10.0°C4 Aug 1999	227 mm20 Aug 1978	722 mm1995 · driest 87 mm in 1991	35
September	31.7°C10 Sep 2008	8.9°C26 Sep 1999	209 mm17 Sep 2010	643 mm2009 · driest 87 mm in 1997	34
October	32.2°C16 Oct 1979	6.7°C23 Oct 2011	100 mm17 Oct 2002	466 mm2002 · driest 46 mm in 1989	35
November	35.0°C5 Nov 1988	1.7°C26 Nov 2006	106 mm14 Nov 2004	175 mm1998 · driest 12 mm in 1981	35
December	32.8°C28 Dec 1996	0.6°C21 Dec 1994	57 mm30 Dec 1984	118 mm1986 · driest 0 mm in 1999	34

Typical days per month at COSAUTLAN, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	9	<1	1
February	13	2	1
March	20	5	2
April	24	10	3
May	27	11	4
June	26	7	10
July	25	2	9
August	27	1	10
September	24	<1	10
October	19	1	6
November	11	1	3
December	9	1	1

How often, not how much — every day in COSAUTLAN’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	62%	24%	4%	30%	19.4–25.5°C
February	67%	25%	4%	28%	20.6–26.5°C
March	77%	20%	5%	22%	23.1–27.7°C
April	75%	24%	8%	28%	25.0–29.7°C
May	69%	30%	14%	39%	25.4–30.1°C
June	46%	54%	35%	75%	25.3–28.7°C
July	48%	52%	31%	75%	25.2–27.5°C
August	49%	51%	29%	72%	24.8–27.8°C
September	44%	56%	34%	73%	24.6–27.1°C
October	59%	40%	19%	49%	22.8–26.3°C
November	66%	28%	8%	34%	21.1–26.7°C
December	64%	25%	5%	29%	19.5–25.4°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.

1977Each stripe is one year’s mean temperature against the 29-year average. Warmest: 1997. Coolest: 1999.2011

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 9091460
NOAA station: MXN00030311 · COSAUTLAN
Station distance: 5.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 19.27°, 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 COSAUTLAN is what differs

Cosautlán→San Miguel Tlapéxcatl→Pinillo→Barranca Nueva→Vaquería→Cetlalpan→

Or put two places side by side: San Martín Comalapa vs Cosautlán

Best time to visitSan Martín Comalapa.