Mexico · 1991–2020

Best time to visit
San Juan Chámacua.

January leads for comfortable weather in San Juan Chámacua: typically 35.6°C by day, 15.9°C at night, with 7 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJanuary

Typical high35.6°C

Typical low15.9°C

Rain in January7 mm

Comfort

January

January · December · February

60climate match

Beach

November

November · February · October

71climate match

Outdoors

January

January · December · February

42climate match

The weakest month is June, scoring 13 against January’s 60 — days average 38.2°C, 14° 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

6035.6° / 15.9°

Feb

5336.7° / 18.1°

Mar

4239° / 19.8°

Apr

3141° / 22.4°

May

2641.5° / 24°

Jun

1338.2° / 23.1°

Jul

1436.6° / 22.2°

Aug

1335.4° / 21.5°

Sep

1835.9° / 21.8°

Oct

4136.7° / 21.1°

Nov

5236.5° / 18.6°

Dec

5736.3° / 16.2°

Monthly climate evidence for San Juan Chámacua — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	35.6°C	15.9°C	7 mm	0.7	11 h 08	60	Good coverage
February	36.7°C	18.1°C	9 mm	0.3	11 h 31	53	Good coverage
March	39°C	19.8°C	2 mm	0.2	11 h 59	42	Good coverage
April	41°C	22.4°C	0 mm	0	12 h 32	31	Good coverage
May	41.5°C	24°C	19 mm	1.6	12 h 59	26	Good coverage
June	38.2°C	23.1°C	156 mm	12	13 h 13	13	Good coverage
July	36.6°C	22.2°C	197 mm	13	13 h 08	14	Good coverage
August	35.4°C	21.5°C	229 mm	15	12 h 45	13	Good coverage
September	35.9°C	21.8°C	194 mm	11.8	12 h 13	18	Good coverage
October	36.7°C	21.1°C	66 mm	5.2	11 h 42	41	Good coverage
November	36.5°C	18.6°C	10 mm	0.8	11 h 15	52	Good coverage
December	36.3°C	16.2°C	1 mm	0.2	11 h 02	57	Good coverage

Records at TERRONES, 1972–2013
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	42.8°C1 Jan 2011	7.8°C13 Jan 1997	65 mm24 Jan 1980	130 mm1980 · driest 0 mm in 1985	37
February	46.1°C19 Feb 2011	8.9°C4 Feb 1998	80 mm2 Feb 2010	164 mm2010 · driest 0 mm in 1979	38
March	46.7°C22 Mar 2011	12.2°C1 Mar 2005	31 mm2 Mar 2001	44 mm2001 · driest 0 mm in 1999	38
April	47.8°C17 Apr 2013	16.1°C1 Apr 2005	7 mm1 Apr 1976	7 mm1976 · driest 0 mm in 1983	36
May	48.9°C27 May 2011	15.0°C29 May 1972	47 mm16 May 1973	81 mm1977 · driest 0 mm in 1998	38
June	46.1°C17 Jun 2005	16.1°C1 Jun 2005	90 mm8 Jun 2001	327 mm1984 · driest 59 mm in 1983	38
July	42.8°C2 Jul 2005	16.7°C13 Jul 1989	112 mm20 Jul 1998	476 mm1998 · driest 89 mm in 2013	39
August	42.2°C31 Aug 2012	15.6°C31 Aug 1984	88 mm24 Aug 1977	384 mm2006 · driest 73 mm in 1982	36
September	41.7°C2 Sep 2012	13.9°C27 Sep 1978	133 mm4 Sep 2010	637 mm2010 · driest 67 mm in 1982	36
October	42.2°C21 Oct 2006	10.0°C27 Oct 1996	57 mm9 Oct 2003	157 mm1994 · driest 0 mm in 1987	36
November	42.8°C20 Nov 2005	8.9°C3 Nov 1996	31 mm20 Nov 2005	54 mm2002 · driest 0 mm in 2010	35
December	41.1°C27 Dec 1979	7.8°C27 Dec 1996	22 mm2 Dec 1986	22 mm1986 · driest 0 mm in 1973	35

Typical days per month at TERRONES, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	31	29	<1
February	28	27	<1
March	31	31	<1
April	30	30	0
May	31	31	<1
June	30	30	5
July	31	31	7
August	31	29	8
September	30	29	6
October	31	31	2
November	30	30	<1
December	31	31	0

How often, not how much — every day in TERRONES’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	98%	2%	1%	2%	30.8–38.9°C
February	99%	1%	<1%	<1%	30.8–40.0°C
March	99%	<1%	<1%	0%	34.0–42.1°C
April	100%	<1%	0%	0%	37.1–43.8°C
May	95%	6%	2%	5%	38.5–45.0°C
June	62%	38%	17%	54%	34.2–40.7°C
July	60%	40%	23%	59%	31.1–38.1°C
August	56%	44%	22%	64%	30.4–37.2°C
September	63%	36%	19%	44%	30.5–37.6°C
October	84%	16%	7%	12%	31.3–38.4°C
November	98%	2%	<1%	<1%	31.8–38.7°C
December	99%	<1%	<1%	0%	30.9–38.6°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.

1972Each stripe is one year’s mean temperature against the 29-year average. Warmest: 2007. Coolest: 1988.2010

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 8861525
NOAA station: MXN00012139 · TERRONES
Station distance: 2.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 18.27°, 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 TERRONES is what differs

Tanganhuato→Amuco de la Reforma→Sinahua→San Lorenzo→San Juan de la Cruz→La Bajada→

Or put two places side by side: San Juan Chámacua vs Tanganhuato

Best time to visitSan Juan Chámacua.

January

November

January

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
San Juan Chámacua.

The whole year,
without the guesswork.

Nearby, measured,
and named.