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Mexico · 1991–2020

Best time to visit
Arellano.

October leads for comfortable weather in Arellano: typically 25.9°C by day, 8.7°C at night, with 34 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high25.9°C

Typical low8.7°C

Rain in October34 mm

Comfort

October

October · November · February

82climate match

Beach

May

May · April · June

70climate match

Outdoors

January

January · October · December

81climate match

The weakest month is July, scoring 63 against October’s 82 — 144 mm of rain falls, and days average 27.4°C, 3° 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

7322.3° / 2.9°

Feb

7824.7° / 4.1°

Mar

7427.4° / 6.6°

Apr

7329.6° / 10°

May

7330.7° / 12°

Jun

6829.4° / 13.1°

Jul

6327.4° / 12.5°

Aug

6827.1° / 12.4°

Sep

7526.2° / 11.2°

Oct

8225.9° / 8.7°

Nov

8024.4° / 4.7°

Dec

7522.8° / 3°

Monthly climate evidence for Arellano — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	22.3°C	2.9°C	21 mm	1.5	10 h 56	73	Good coverage
February	24.7°C	4.1°C	13 mm	1	11 h 24	78	Good coverage
March	27.4°C	6.6°C	2 mm	0.2	11 h 58	74	Good coverage
April	29.6°C	10°C	7 mm	0.8	12 h 37	73	Good coverage
May	30.7°C	12°C	30 mm	2.3	13 h 10	73	Good coverage
June	29.4°C	13.1°C	91 mm	5.8	13 h 27	68	Good coverage
July	27.4°C	12.5°C	144 mm	10	13 h 21	63	Good coverage
August	27.1°C	12.4°C	119 mm	8.6	12 h 53	68	Good coverage
September	26.2°C	11.2°C	88 mm	6.3	12 h 15	75	Good coverage
October	25.9°C	8.7°C	34 mm	2.6	11 h 37	82	Good coverage
November	24.4°C	4.7°C	5 mm	0.7	11 h 04	80	Good coverage
December	22.8°C	3°C	7 mm	0.8	10 h 49	75	Good coverage

Records at ARELLANO, 1949–2013
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	35.6°C29 Jan 2006	-9.4°C24 Jan 1955	34 mm1 Jan 2013	225 mm1992 · driest 0 mm in 2008	41
February	32.8°C24 Feb 2008	-4.4°C5 Feb 1952	45 mm1 Feb 2010	153 mm2010 · driest 0 mm in 1951	41
March	35.6°C19 Mar 2004	-3.3°C3 Mar 2001	24 mm2 Mar 2001	24 mm2001 · driest 0 mm in 1986	41
April	37.8°C16 Apr 2003	0.0°C7 Apr 2000	54 mm25 Apr 2001	66 mm2001 · driest 0 mm in 1984	40
May	38.9°C7 May 2003	2.8°C4 May 2000	68 mm20 May 2009	363 mm2009 · driest 0 mm in 1955	40
June	41.7°C20 Jun 2002	3.9°C26 Jun 2000	59 mm15 Jun 1953	258 mm2007 · driest 0 mm in 2005	42
July	35.6°C6 Jul 2011	3.9°C21 Jul 2000	71 mm29 Jul 1988	312 mm1991 · driest 29 mm in 1996	42
August	35.6°C21 Aug 2012	4.4°C1 Aug 1999	45 mm29 Aug 1997	279 mm2008 · driest 33 mm in 2004	42
September	33.9°C4 Sep 1951	1.1°C18 Sep 1951	45 mm25 Sep 1992	179 mm2003 · driest 0 mm in 1956	43
October	33.9°C26 Oct 2010	-1.1°C23 Oct 1952	60 mm9 Oct 1992	158 mm1992 · driest 0 mm in 1987	42
November	31.7°C12 Nov 2012	-4.4°C29 Nov 2011	23 mm13 Nov 1992	44 mm1982 · driest 0 mm in 2004	40
December	30.6°C10 Dec 2011	-4.4°C6 Dec 2000	38 mm10 Dec 1953	58 mm1991 · driest 0 mm in 2003	40

Typical days per month at ARELLANO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	9	<1	4	<1
February	17	1	<1	<1
March	27	8	<1	<1
April	29	16	<1	<1
May	30	21	0	<1
June	28	14	0	4
July	28	6	0	6
August	28	5	0	5
September	24	2	0	4
October	22	4	0	1
November	17	2	2	<1
December	12	<1	5	<1

How often, not how much — every day in ARELLANO’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	82%	4%	2%	5%	19.4–24.8°C
February	92%	3%	1%	2%	22.2–27.0°C
March	98%	1%	<1%	<1%	25.0–29.7°C
April	97%	3%	<1%	2%	27.3–31.8°C
May	93%	7%	3%	5%	28.4–32.5°C
June	79%	21%	11%	28%	27.2–31.5°C
July	67%	33%	18%	39%	25.2–29.1°C
August	71%	29%	15%	31%	25.2–28.3°C
September	80%	20%	10%	20%	24.4–27.7°C
October	91%	8%	4%	6%	23.4–28.5°C
November	91%	2%	<1%	2%	20.9–26.9°C
December	85%	3%	1%	2%	19.6–25.3°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.

1950Each stripe is one year’s mean temperature against the 35-year average. Warmest: 2006. Coolest: 2000.2010

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4021320
NOAA station: MXN00001062 · ARELLANO
Station distance: 0.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 21.80°, 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 ARELLANO is what differs

Hacienda San Marcos [Fraccionamiento]→San Sebastián [Fraccionamiento]→Vista Alegre→Lomas de Nueva York→El Malacate→Los Guerrero→

Or put two places side by side: Arellano vs Hacienda San Marcos [Fraccionamiento]

Best time to visitArellano.

October

May

January

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Arellano.

The whole year,
without the guesswork.

Nearby, measured,
and named.