Mexico · 1991–2020

Best time to visit
Coatlaco.

November leads for comfortable weather in Coatlaco: typically 28.3°C by day, 12.4°C at night, with 13 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortNovember

Typical high28.3°C

Typical low12.4°C

Rain in November13 mm

Comfort

November

November · December · January

81climate match

Beach

November

November · February · March

74climate match

Outdoors

December

December · January · November

76climate match

The weakest month is August, scoring 45 against November’s 81 — 218 mm of rain falls, and days average 29.3°C, 5° 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

7927.9° / 10.3°

Feb

7729.1° / 11.6°

Mar

7131.9° / 13.3°

Apr

6733.7° / 15.5°

May

5933.3° / 16.9°

Jun

4929.9° / 16.8°

Jul

4629.3° / 15.5°

Aug

4529.3° / 15.4°

Sep

4928° / 15.4°

Oct

7128.5° / 14.1°

Nov

8128.3° / 12.4°

Dec

8127.5° / 10.8°

Monthly climate evidence for Coatlaco — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	27.9°C	10.3°C	11 mm	0.7	11 h 10	79	Good coverage
February	29.1°C	11.6°C	3 mm	0.5	11 h 32	77	Good coverage
March	31.9°C	13.3°C	3 mm	0.1	12 h	71	Good coverage
April	33.7°C	15.5°C	11 mm	1	12 h 31	67	Good coverage
May	33.3°C	16.9°C	74 mm	5	12 h 57	59	Good coverage
June	29.9°C	16.8°C	182 mm	11.6	13 h 11	49	Good coverage
July	29.3°C	15.5°C	209 mm	15.6	13 h 06	46	Good coverage
August	29.3°C	15.4°C	218 mm	15	12 h 43	45	Good coverage
September	28°C	15.4°C	224 mm	14.4	12 h 13	49	Good coverage
October	28.5°C	14.1°C	97 mm	7.4	11 h 43	71	Good coverage
November	28.3°C	12.4°C	13 mm	1.2	11 h 17	81	Good coverage
December	27.5°C	10.8°C	10 mm	0.8	11 h 04	81	Good coverage

Records at CUALAC, 1980–2012
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	35.0°C8 Jan 2011	0.6°C28 Jan 1987	85 mm13 Jan 2002	85 mm2002 · driest 0 mm in 2011	26
February	36.1°C6 Feb 2011	1.1°C15 Feb 1999	19 mm21 Feb 1982	46 mm1983 · driest 0 mm in 2001	28
March	45.6°C31 Mar 1996	3.9°C2 Mar 1998	42 mm14 Mar 2005	42 mm2005 · driest 0 mm in 2010	28
April	45.6°C5 Apr 1996	8.9°C7 Apr 1998	49 mm26 Apr 2001	104 mm1986 · driest 0 mm in 2003	30
May	41.1°C4 May 1996	8.9°C4 May 1998	130 mm13 May 2004	329 mm2004 · driest 0 mm in 1998	28
June	39.4°C15 Jun 1983	10.6°C4 Jun 1997	100 mm29 Jun 2004	557 mm2003 · driest 5 mm in 2005	27
July	36.1°C10 Jul 1996	10.0°C19 Jul 1986	94 mm2 Jul 2002	560 mm2001 · driest 31 mm in 2006	24
August	35.6°C26 Aug 1993	8.3°C10 Aug 1998	129 mm24 Aug 2001	692 mm2001 · driest 54 mm in 1982	26
September	36.1°C4 Sep 1996	5.0°C1 Sep 1997	120 mm1 Sep 2001	740 mm2001 · driest 54 mm in 2008	26
October	34.4°C22 Oct 2004	6.1°C13 Oct 1996	55 mm1 Oct 2002	190 mm2007 · driest 0 mm in 2010	24
November	35.0°C1 Nov 2004	1.7°C28 Nov 1998	32 mm13 Nov 2006	90 mm2006 · driest 0 mm in 1981	28
December	32.8°C2 Dec 2010	0.0°C23 Dec 1997	40 mm30 Dec 1995	86 mm1995 · driest 0 mm in 2010	28

Typical days per month at CUALAC, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	26	9	<1
February	26	13	<1
March	30	25	<1
April	30	28	<1
May	31	28	2
June	28	17	7
July	30	15	8
August	30	14	8
September	27	9	8
October	29	10	4
November	29	7	<1
December	27	6	<1

How often, not how much — every day in CUALAC’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	97%	2%	<1%	2%	24.8–30.0°C
February	97%	3%	<1%	<1%	26.2–31.2°C
March	99%	1%	<1%	0%	29.1–33.9°C
April	95%	5%	1%	2%	31.0–34.8°C
May	82%	18%	8%	20%	31.0–35.6°C
June	56%	42%	22%	63%	27.3–32.3°C
July	49%	51%	24%	67%	26.0–31.0°C
August	53%	48%	24%	72%	27.1–30.9°C
September	50%	48%	23%	63%	26.1–30.2°C
October	79%	20%	10%	18%	27.1–29.9°C
November	96%	4%	1%	1%	26.6–30.0°C
December	98%	2%	<1%	1%	25.4–29.1°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

Nearby, measured,
and named.

Place identity: GeoNames 3822050
NOAA station: MXN00012185 · CUALAC
Station distance: 3.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 17.70°, 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 CUALAC is what differs

Cualác→Chiepetlán (San Miguel Chiepetlán)→Zacualpan→San Martín Jolalpan→El Cuahulote→Acatenco→

Or put two places side by side: Coatlaco vs Cualác

Best time to visitCoatlaco.

November

November

December

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Coatlaco.

The whole year,
without the guesswork.

Nearby, measured,
and named.