Mexico · 1991–2020

Best time to visit
Xalatlaco.

March leads for comfortable weather in Xalatlaco: typically 23.2°C by day, 10.5°C at night, with 79 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMarch

Typical high23.2°C

Typical low10.5°C

Rain in March79 mm

Comfort

March

March · April · February

77climate match

Beach

April

April · March · February

41climate match

Outdoors

February

February · January · December

84climate match

The weakest month is September, scoring 30 against March’s 77 — 368 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

6620.7° / 9.1°

Feb

7421.6° / 9.5°

Mar

7723.2° / 10.5°

Apr

7624.5° / 11.6°

May

6224.9° / 12.4°

Jun

3524.5° / 12.7°

Jul

3623.9° / 12.1°

Aug

3123.9° / 12°

Sep

3023.5° / 12°

Oct

4922.8° / 11.2°

Nov

6521.7° / 9.9°

Dec

6521.2° / 9.2°

Monthly climate evidence for Xalatlaco — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	20.7°C	9.1°C	78 mm	10.2	11 h 06	66	Good coverage
February	21.6°C	9.5°C	60 mm	7.9	11 h 30	74	Good coverage
March	23.2°C	10.5°C	79 mm	9.7	11 h 59	77	Good coverage
April	24.5°C	11.6°C	108 mm	9.3	12 h 33	76	Good coverage
May	24.9°C	12.4°C	181 mm	14.1	13 h 01	62	Good coverage
June	24.5°C	12.7°C	351 mm	20	13 h 16	35	Good coverage
July	23.9°C	12.1°C	347 mm	20	13 h 10	36	Good coverage
August	23.9°C	12°C	372 mm	21.2	12 h 46	31	Good coverage
September	23.5°C	12°C	368 mm	20.9	12 h 13	30	Good coverage
October	22.8°C	11.2°C	245 mm	15.6	11 h 41	49	Good coverage
November	21.7°C	9.9°C	111 mm	11.1	11 h 13	65	Good coverage
December	21.2°C	9.2°C	88 mm	11.8	10 h 59	65	Good coverage

Records at COSCOMATEPEC (SMN), 1953–2008
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	39.4°C17 Jan 1960	0.0°C11 Jan 1962	47 mm20 Jan 1985	154 mm1992 · driest 7 mm in 1986	54
February	37.8°C23 Feb 1962	0.0°C9 Feb 1971	41 mm23 Feb 1985	127 mm2002 · driest 7 mm in 1962	54
March	38.9°C12 Mar 1954	1.7°C10 Mar 1989	88 mm26 Mar 1965	184 mm1997 · driest 3 mm in 1973	54
April	38.3°C1 Apr 1960	2.8°C1 Apr 1987	200 mm13 Apr 1977	846 mm1977 · driest 8 mm in 1970	53
May	38.3°C1 May 1964	7.8°C8 May 1992	64 mm19 May 1964	333 mm1956 · driest 21 mm in 1983	53
June	37.8°C8 Jun 1974	5.6°C20 Jun 1977	126 mm15 Jun 1981	749 mm1981 · driest 121 mm in 1962	52
July	35.6°C28 Jul 1969	6.7°C8 Jul 1977	159 mm30 Jul 1961	823 mm1961 · driest 74 mm in 1953	54
August	32.2°C25 Aug 1958	6.7°C8 Aug 1977	78 mm9 Aug 1992	686 mm1969 · driest 116 mm in 1974	54
September	33.9°C28 Sep 1959	6.7°C27 Sep 1977	179 mm18 Sep 1957	743 mm1998 · driest 36 mm in 1995	54
October	33.9°C4 Oct 1959	2.8°C24 Oct 1965	98 mm14 Oct 1958	452 mm1958 · driest 28 mm in 1961	54
November	36.7°C26 Nov 1959	1.7°C17 Nov 1970	80 mm4 Nov 1992	203 mm2006 · driest 3 mm in 1988	54
December	35.6°C11 Dec 1961	1.7°C25 Dec 1963	54 mm4 Dec 1981	149 mm1997 · driest 5 mm in 1970	54

Typical days per month at COSCOMATEPEC (SMN), 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	2	0	2
February	5	<1	2
March	10	2	2
April	14	2	4
May	16	2	7
June	14	<1	14
July	12	0	13
August	12	0	14
September	8	0	14
October	6	0	9
November	3	0	4
December	1	0	3

How often, not how much — every day in COSCOMATEPEC (SMN)’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	61%	25%	4%	29%	18.8–25.8°C
February	63%	26%	5%	28%	19.9–26.7°C
March	69%	26%	5%	32%	21.9–28.8°C
April	68%	30%	11%	39%	23.6–30.4°C
May	59%	42%	17%	59%	24.0–30.6°C
June	31%	69%	41%	88%	23.8–28.9°C
July	28%	72%	39%	92%	23.0–27.9°C
August	30%	70%	36%	93%	23.2–28.2°C
September	29%	71%	38%	90%	22.9–27.4°C
October	48%	50%	20%	62%	21.9–27.2°C
November	62%	31%	8%	39%	20.9–26.4°C
December	60%	29%	5%	34%	19.5–25.3°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.

1954Each stripe is one year’s mean temperature against the 51-year average. Warmest: 1980. Coolest: 1987.2007

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 8859439
NOAA station: MXN00030032 · COSCOMATEPEC (SMN)
Station distance: 2.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 19.05°, 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 COSCOMATEPEC (SMN) is what differs

Coscomatepec de Bravo→Chocamán→Tetla→Tetlaxco→Tozongo→Calcahualco→

Or put two places side by side: Xalatlaco vs Coscomatepec de Bravo

Best time to visitXalatlaco.