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Mexico · 1991–2020

Best time to visit
San Antonio.

October leads for comfortable weather in San Antonio: typically 24.2°C by day, 6.5°C at night, with 29 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high24.2°C

Typical low6.5°C

Rain in October29 mm

Comfort

October

October · September · March

84climate match

Beach

May

May · April · June

64climate match

Outdoors

January

January · December · November

84climate match

The weakest month is January, scoring 65 against October’s 84 — nights drop to 1.6°C.

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

6520.6° / 1.6°

Feb

7422.6° / 3.2°

Mar

7725.8° / 5.5°

Apr

7029° / 7.6°

May

6930.4° / 9.5°

Jun

6829.6° / 10.5°

Jul

6726.8° / 10.3°

Aug

7326.2° / 9.8°

Sep

7924.5° / 9.2°

Oct

8424.2° / 6.5°

Nov

7522.6° / 3.9°

Dec

6721.1° / 1.9°

Monthly climate evidence for San Antonio — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	20.6°C	1.6°C	20 mm	1.5	10 h 54	65	Good coverage
February	22.6°C	3.2°C	10 mm	1	11 h 23	74	Good coverage
March	25.8°C	5.5°C	2 mm	0.4	11 h 58	77	Good coverage
April	29°C	7.6°C	4 mm	0.5	12 h 38	70	Good coverage
May	30.4°C	9.5°C	17 mm	2.6	13 h 11	69	Good coverage
June	29.6°C	10.5°C	53 mm	5.9	13 h 29	68	Good coverage
July	26.8°C	10.3°C	102 mm	9.4	13 h 22	67	Good coverage
August	26.2°C	9.8°C	82 mm	7.8	12 h 54	73	Good coverage
September	24.5°C	9.2°C	75 mm	7	12 h 15	79	Good coverage
October	24.2°C	6.5°C	29 mm	2.9	11 h 36	84	Good coverage
November	22.6°C	3.9°C	5 mm	0.6	11 h 03	75	Good coverage
December	21.1°C	1.9°C	6 mm	0.9	10 h 47	67	Good coverage

Records at RINCON DE ROMOS, 1979–2013
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	27.8°C22 Jan 1997	-8.3°C16 Jan 1998	46 mm1 Jan 2013	200 mm1992 · driest 0 mm in 1996	32
February	31.7°C12 Feb 1982	-5.0°C1 Feb 2004	45 mm2 Feb 2010	68 mm2010 · driest 0 mm in 2013	32
March	35.0°C31 Mar 1982	-4.4°C2 Mar 2013	17 mm2 Mar 2001	17 mm2001 · driest 0 mm in 2008	34
April	36.7°C23 Apr 2008	0.0°C8 Apr 1991	25 mm6 Apr 1988	38 mm1988 · driest 0 mm in 2013	33
May	40.0°C26 May 2011	2.8°C4 May 2005	30 mm29 May 2000	90 mm1992 · driest 0 mm in 2012	34
June	37.8°C11 Jun 1982	3.9°C26 Jun 2005	49 mm5 Jun 2004	175 mm2004 · driest 0 mm in 1982	33
July	35.6°C26 Jul 2003	5.0°C12 Jul 1985	80 mm29 Jul 2003	351 mm1991 · driest 21 mm in 2009	34
August	35.0°C14 Aug 2013	5.0°C29 Aug 2006	73 mm16 Aug 2002	195 mm1995 · driest 5 mm in 1999	33
September	35.6°C7 Sep 2010	0.0°C30 Sep 1979	52 mm17 Sep 2013	193 mm2013 · driest 1 mm in 1982	33
October	31.7°C4 Oct 1983	-4.4°C29 Oct 2003	50 mm20 Oct 1985	118 mm1992 · driest 0 mm in 1999	33
November	30.6°C5 Nov 2000	-6.1°C29 Nov 2011	34 mm3 Nov 2002	34 mm2002 · driest 0 mm in 2005	33
December	27.8°C2 Dec 1981	-13.3°C15 Dec 1997	23 mm3 Dec 1989	46 mm1989 · driest 0 mm in 1998	33

Typical days per month at RINCON DE ROMOS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	4	0	11	<1
February	9	<1	4	<1
March	21	4	2	0
April	27	15	<1	<1
May	30	19	0	<1
June	28	16	0	2
July	23	8	0	3
August	21	5	0	3
September	15	1	0	2
October	14	1	<1	1
November	8	<1	5	<1
December	5	0	11	<1

How often, not how much — every day in RINCON DE ROMOS’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	65%	5%	2%	5%	18.3–22.8°C
February	84%	4%	<1%	3%	19.9–25.1°C
March	96%	1%	<1%	<1%	23.0–28.1°C
April	97%	2%	<1%	<1%	24.5–31.4°C
May	92%	8%	1%	6%	27.3–32.7°C
June	81%	19%	6%	23%	26.2–32.7°C
July	69%	30%	10%	35%	23.0–30.2°C
August	76%	24%	8%	28%	22.9–29.4°C
September	76%	22%	7%	21%	22.0–27.0°C
October	87%	10%	3%	7%	21.9–27.2°C
November	86%	3%	<1%	2%	20.6–25.0°C
December	72%	4%	<1%	2%	18.7–23.5°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 29-year average. Warmest: 2011. Coolest: 2004.2012

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3987877
NOAA station: MXN00001082 · RINCON DE ROMOS
Station distance: 5.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 22.23°, 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 RINCON DE ROMOS is what differs

Rincón de Romos→Pablo Escaleras→El Bajío→El Saucillo→El Gigante→Morelos→

Or put two places side by side: San Antonio vs Rincón de Romos

Best time to visitSan Antonio.

October

May

January

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
San Antonio.

The whole year,
without the guesswork.

Nearby, measured,
and named.