Mexico · 1991–2020

Best time to visit
Río Grande.

November leads for comfortable weather in Río Grande: typically 23.7°C by day, 11.7°C at night, with 19 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortNovember

Typical high23.7°C

Typical low11.7°C

Rain in November19 mm

Comfort

November

November · January · December

93climate match

Beach

April

April · March · February

76climate match

Outdoors

January

January · December · November

88climate match

The weakest month is September, scoring 66 against November’s 93 — 158 mm of rain falls.

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

9123.8° / 10.3°

Feb

8825.3° / 10.6°

Mar

8327.4° / 11.7°

Apr

8028.6° / 13.7°

May

6927.9° / 14.9°

Jun

6726.1° / 15.3°

Jul

8425.3° / 14.8°

Aug

7926° / 15°

Sep

6626° / 15°

Oct

8224.7° / 13.7°

Nov

9323.7° / 11.7°

Dec

9123.4° / 10.9°

Monthly climate evidence for Río Grande — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	23.8°C	10.3°C	5 mm	1.5	11 h 15	91	Good coverage
February	25.3°C	10.6°C	7 mm	1.6	11 h 35	88	Good coverage
March	27.4°C	11.7°C	17 mm	2	12 h 00	83	Strong coverage
April	28.6°C	13.7°C	39 mm	4.6	12 h 29	80	Good coverage
May	27.9°C	14.9°C	121 mm	9.3	12 h 53	69	Good coverage
June	26.1°C	15.3°C	161 mm	12	13 h 05	67	Good coverage
July	25.3°C	14.8°C	80 mm	9	13 h 00	84	Good coverage
August	26°C	15°C	92 mm	9.7	12 h 40	79	Good coverage
September	26°C	15°C	158 mm	14.4	12 h 12	66	Good coverage
October	24.7°C	13.7°C	88 mm	9.8	11 h 45	82	Strong coverage
November	23.7°C	11.7°C	19 mm	3.4	11 h 21	93	Strong coverage
December	23.4°C	10.9°C	8 mm	1.8	11 h 10	91	Good coverage

Records at COMITAN CHIS., 1979–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	35.0°C7 Jan 1991	0.0°C16 Jan 1996	10 mm1 Jan 2003	13 mm2003 · driest 0 mm in 2002	37
February	33.2°C16 Feb 1992	0.0°C6 Feb 1996	17 mm6 Feb 2012	25 mm2011 · driest 0 mm in 2006	35
March	34.0°C28 Mar 2020	0.0°C3 Mar 1994	41 mm2 Mar 1982	56 mm1997 · driest 0 mm in 2009	37
April	35.8°C2 Apr 2026	8.2°C25 Apr 2012	48 mm26 Apr 1993	137 mm2005 · driest 0 mm in 1998	34
May	36.7°C6 May 2026	9.0°C15 May 2026	87 mm24 May 2010	221 mm2000 · driest 0 mm in 1981	35
June	34.8°C30 Jun 1992	9.2°C17 Jun 2000	90 mm18 Jun 1989	253 mm1998 · driest 26 mm in 1980	39
July	33.8°C12 Jul 2020	10.6°C14 Jul 2026	65 mm22 Jul 2008	218 mm2010 · driest 7 mm in 2018	38
August	32.7°C14 Aug 1991	9.7°C31 Aug 2008	99 mm30 Aug 2017	330 mm1995 · driest 15 mm in 2015	35
September	32.4°C1 Sep 1992	9.6°C3 Sep 2017	95 mm23 Sep 1982	441 mm2004 · driest 14 mm in 1979	35
October	33.0°C14 Oct 2021	5.0°C26 Oct 1999	65 mm6 Oct 2005	171 mm2004 · driest 6 mm in 1981	36
November	33.7°C2 Nov 1995	2.3°C22 Nov 2006	28 mm10 Nov 1989	51 mm1989 · driest 0 mm in 2010	34
December	31.2°C2 Dec 2023	0.0°C22 Dec 1993	23 mm20 Dec 2009	27 mm1991 · driest 0 mm in 2008	33

Typical days per month at COMITAN CHIS., 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	8	<1	0
February	11	1	<1
March	17	4	<1
April	21	7	1
May	23	5	4
June	18	<1	4
July	13	<1	2
August	17	<1	3
September	18	<1	5
October	12	0	2
November	8	0	<1
December	7	0	<1

How often, not how much — every day in COMITAN CHIS.’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	86%	5%	0%	<1%	22.1–25.3°C
February	92%	6%	<1%	1%	23.4–27.0°C
March	94%	5%	2%	<1%	25.7–29.4°C
April	84%	15%	5%	15%	27.0–30.3°C
May	72%	29%	13%	39%	26.6–29.8°C
June	61%	40%	17%	48%	24.7–27.7°C
July	72%	28%	7%	34%	24.0–26.8°C
August	68%	31%	9%	43%	24.4–27.4°C
September	55%	47%	17%	74%	24.4–27.6°C
October	69%	30%	8%	33%	23.2–26.4°C
November	83%	12%	2%	6%	22.2–25.1°C
December	86%	6%	<1%	2%	22.1–25.0°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.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 8860505
NOAA station: MXM00076848 · COMITAN CHIS.
Station distance: 3.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 16.28°, 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 COMITAN CHIS. is what differs

La Trinitaria→San José Yocnajab→Los Riegos→Francisco Sarabia→Cash→Señor del Pozo→

Or put two places side by side: Río Grande vs La Trinitaria

Best time to visitRío Grande.