Mexico · 1991–2020

Best time to visit
San Juan Achichilco.

October leads for comfortable weather in San Juan Achichilco: typically 24.9°C by day, 9°C at night, with 49 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high24.9°C

Typical low9°C

Rain in October49 mm

Comfort

October

October · November · January

83climate match

Beach

May

May · April · June

66climate match

Outdoors

November

November · October · January

80climate match

The weakest month is March, scoring 70 against October’s 83 — nights drop to 6.5°C, and days average 28.3°C, 4° 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

7824.4° / 3.6°

Feb

7526° / 4.9°

Mar

7028.3° / 6.5°

Apr

7129.7° / 9.1°

May

7129.6° / 10.6°

Jun

7428° / 12.2°

Jul

7626.7° / 12.1°

Aug

7826.8° / 12°

Sep

7825.9° / 11.7°

Oct

8324.9° / 9°

Nov

8224.6° / 6.4°

Dec

7824.9° / 4.3°

Monthly climate evidence for San Juan Achichilco — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	24.4°C	3.6°C	7 mm	1.1	11 h 02	78	Good coverage
February	26°C	4.9°C	8 mm	0.9	11 h 27	75	Good coverage
March	28.3°C	6.5°C	8 mm	1	11 h 59	70	Good coverage
April	29.7°C	9.1°C	22 mm	2.8	12 h 35	71	Good coverage
May	29.6°C	10.6°C	42 mm	4.5	13 h 05	71	Good coverage
June	28°C	12.2°C	68 mm	6.7	13 h 21	74	Good coverage
July	26.7°C	12.1°C	79 mm	7.3	13 h 14	76	Good coverage
August	26.8°C	12°C	68 mm	6	12 h 49	78	Good coverage
September	25.9°C	11.7°C	76 mm	7.3	12 h 14	78	Good coverage
October	24.9°C	9°C	49 mm	4.9	11 h 39	83	Good coverage
November	24.6°C	6.4°C	21 mm	1.7	11 h 09	82	Good coverage
December	24.9°C	4.3°C	3 mm	0.6	10 h 55	78	Good coverage

Records at PRESA ENDHO, 1970–2012
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	30.6°C24 Jan 2002	-6.1°C14 Jan 1986	32 mm28 Jan 1992	46 mm1992 · driest 0 mm in 1994	40
February	32.8°C25 Feb 2003	-6.1°C26 Feb 1976	31 mm3 Feb 2010	89 mm2010 · driest 0 mm in 1998	40
March	37.2°C30 Mar 1994	-3.3°C12 Mar 1989	24 mm26 Mar 1971	82 mm1997 · driest 0 mm in 1998	41
April	36.7°C27 Apr 1971	0.6°C8 Apr 1987	56 mm13 Apr 1981	127 mm1981 · driest 0 mm in 1991	41
May	38.9°C23 May 2011	5.0°C17 May 1971	69 mm30 May 2006	176 mm1975 · driest 0 mm in 1998	41
June	35.6°C3 Jun 1998	2.8°C4 Jun 1982	87 mm24 Jun 2004	244 mm2004 · driest 2 mm in 1987	40
July	32.8°C23 Jul 2002	5.6°C14 Jul 1974	60 mm11 Jul 1994	238 mm2010 · driest 15 mm in 1997	41
August	32.8°C13 Aug 1998	6.7°C17 Aug 1999	61 mm15 Aug 1980	169 mm1973 · driest 1 mm in 1997	42
September	32.8°C8 Sep 2000	0.6°C25 Sep 1975	74 mm1 Sep 2011	184 mm1998 · driest 5 mm in 1981	40
October	31.7°C29 Oct 1996	-2.2°C18 Oct 1997	56 mm15 Oct 1980	123 mm1998 · driest 0 mm in 1987	41
November	32.8°C12 Nov 2000	-3.3°C30 Nov 1999	139 mm17 Nov 2008	139 mm2008 · driest 0 mm in 1996	42
December	31.7°C2 Dec 1997	-5.0°C20 Dec 1980	21 mm3 Dec 1979	40 mm1979 · driest 0 mm in 2008	39

Typical days per month at PRESA ENDHO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	17	1	3	<1
February	20	5	1	<1
March	28	12	<1	<1
April	28	18	0	<1
May	29	17	0	1
June	27	10	0	2
July	26	4	0	3
August	27	4	0	2
September	22	2	0	3
October	19	2	<1	2
November	18	<1	1	<1
December	19	1	2	<1

How often, not how much — every day in PRESA ENDHO’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	89%	4%	<1%	3%	21.5–26.2°C
February	90%	5%	<1%	2%	22.3–28.1°C
March	93%	5%	<1%	4%	25.5–30.1°C
April	88%	11%	3%	11%	26.3–31.2°C
May	82%	18%	5%	19%	26.4–31.3°C
June	76%	24%	8%	30%	24.7–28.9°C
July	72%	28%	10%	25%	24.0–28.1°C
August	79%	21%	7%	20%	24.1–28.0°C
September	73%	26%	9%	28%	23.1–27.2°C
October	80%	13%	5%	11%	22.9–26.4°C
November	88%	5%	1%	3%	22.4–26.5°C
December	90%	3%	<1%	1%	21.5–26.3°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.

1971Each stripe is one year’s mean temperature against the 33-year average. Warmest: 1998. Coolest: 2004.2011

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3814125
NOAA station: MXN00013080 · PRESA ENDHO
Station distance: 4.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 20.18°, 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 PRESA ENDHO is what differs

Atengo→Santa Ana Ahuehuepan→San Gabriel→General Pedro María Anaya→La Loma→Xiteje de Zapata→

Or put two places side by side: San Juan Achichilco vs Atengo

Best time to visitSan Juan Achichilco.

October

May

November

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
San Juan Achichilco.

The whole year,
without the guesswork.

Nearby, measured,
and named.