Mexico · 1991–2020

Best time to visit
San Cristóbal.

October leads for comfortable weather in San Cristóbal: typically 25.4°C by day, 6.1°C at night, with 33 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high25.4°C

Typical low6.1°C

Rain in October33 mm

Comfort

October

October · November · September

79climate match

Beach

June

June · May · April

58climate match

Outdoors

October

October · January · November

76climate match

The weakest month is May, scoring 62 against October’s 79 — days average 31.4°C, 7° 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

7022.8° / 0.7°

Feb

7325° / 1.6°

Mar

6627.6° / 2.9°

Apr

6330° / 5.3°

May

6231.4° / 7.9°

Jun

6529.1° / 10.7°

Jul

6727° / 10.7°

Aug

7226.8° / 10.6°

Sep

7525.5° / 10°

Oct

7925.4° / 6.1°

Nov

7624.4° / 2.4°

Dec

7223.3° / 0.6°

Monthly climate evidence for San Cristóbal — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	22.8°C	0.7°C	9 mm	1.5	11 h 00	70	Good coverage
February	25°C	1.6°C	15 mm	1.5	11 h 26	73	Good coverage
March	27.6°C	2.9°C	9 mm	1.1	11 h 58	66	Good coverage
April	30°C	5.3°C	10 mm	1.3	12 h 36	63	Good coverage
May	31.4°C	7.9°C	26 mm	4.3	13 h 06	62	Good coverage
June	29.1°C	10.7°C	78 mm	8.1	13 h 23	65	Good coverage
July	27°C	10.7°C	107 mm	8.9	13 h 16	67	Good coverage
August	26.8°C	10.6°C	76 mm	8.3	12 h 50	72	Good coverage
September	25.5°C	10°C	89 mm	7.3	12 h 14	75	Good coverage
October	25.4°C	6.1°C	33 mm	3.4	11 h 38	79	Good coverage
November	24.4°C	2.4°C	6 mm	0.8	11 h 08	76	Good coverage
December	23.3°C	0.6°C	4 mm	0.5	10 h 53	72	Good coverage

Records at SAN ISIDRO, 1980–2012
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	29.4°C30 Jan 1996	-10.6°C24 Jan 1999	17 mm31 Jan 2010	38 mm2004 · driest 0 mm in 1982	29
February	32.8°C17 Feb 2006	-10.0°C3 Feb 1998	57 mm3 Feb 2010	118 mm2010 · driest 0 mm in 1985	29
March	36.7°C16 Mar 1980	-8.3°C12 Mar 1989	30 mm19 Mar 1997	65 mm1997 · driest 0 mm in 2008	27
April	36.1°C4 Apr 2001	-2.8°C7 Apr 2000	42 mm22 Apr 2006	53 mm1981 · driest 0 mm in 1984	28
May	37.8°C30 May 2012	-0.6°C1 May 1998	36 mm26 May 2000	90 mm2004 · driest 0 mm in 1999	28
June	36.7°C4 Jun 2005	3.9°C12 Jun 2006	57 mm10 Jun 1999	183 mm1994 · driest 8 mm in 2005	28
July	32.8°C14 Jul 1998	3.9°C18 Jul 2000	67 mm5 Jul 2003	238 mm2008 · driest 10 mm in 1980	28
August	32.8°C16 Aug 2009	0.6°C8 Aug 1981	65 mm6 Aug 1989	214 mm2008 · driest 23 mm in 2007	28
September	32.8°C28 Sep 1997	0.0°C26 Sep 1989	66 mm7 Sep 2003	209 mm2003 · driest 0 mm in 1980	28
October	33.9°C31 Oct 2011	-6.1°C24 Oct 2007	42 mm1 Oct 1998	129 mm1998 · driest 0 mm in 1987	29
November	30.6°C1 Nov 1997	-13.3°C29 Nov 2011	23 mm8 Nov 1983	37 mm1980 · driest 0 mm in 2011	27
December	30.0°C20 Dec 1998	-11.1°C26 Dec 2006	18 mm14 Dec 2004	29 mm1989 · driest 0 mm in 1996	26

Typical days per month at SAN ISIDRO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	10	0	13	<1
February	19	3	9	<1
March	27	9	5	<1
April	28	20	<1	<1
May	30	25	<1	<1
June	28	15	0	3
July	26	6	0	3
August	26	5	0	3
September	20	2	0	3
October	21	3	3	1
November	17	<1	7	<1
December	12	<1	14	<1

How often, not how much — every day in SAN ISIDRO’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	79%	5%	<1%	4%	19.8–24.1°C
February	89%	6%	1%	3%	21.9–26.5°C
March	96%	3%	<1%	<1%	25.3–29.0°C
April	95%	5%	1%	4%	27.7–32.1°C
May	87%	12%	2%	13%	28.7–32.6°C
June	75%	25%	8%	31%	26.1–30.9°C
July	72%	28%	11%	32%	25.1–28.3°C
August	74%	26%	9%	30%	24.9–28.5°C
September	78%	21%	9%	22%	24.2–27.2°C
October	85%	11%	4%	8%	24.0–26.5°C
November	90%	4%	1%	2%	22.4–25.7°C
December	85%	2%	<1%	<1%	20.1–24.8°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.

1983Each stripe is one year’s mean temperature against the 21-year average. Warmest: 1996. Coolest: 1984.2011

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3987383
NOAA station: MXN00011160 · SAN ISIDRO
Station distance: 11.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 20.66°, 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 SAN ISIDRO is what differs

Rancho Nuevo de la Cruz→Estación Joaquín→Loma de la Esperanza→Las Masas (La Luz Masas)→Guadalupe de Rivera→Purísima de Covarrubias→

Or put two places side by side: San Cristóbal vs Rancho Nuevo de la Cruz

Best time to visitSan Cristóbal.

October

June

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
San Cristóbal.

The whole year,
without the guesswork.

Nearby, measured,
and named.