Mexico · 1991–2020

Best time to visit
Piedras Negras.

November leads for comfortable weather in Piedras Negras: typically 25.4°C by day, 10.8°C at night, with 18 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortNovember

Typical high25.4°C

Typical low10.8°C

Rain in November18 mm

Comfort

November

November · February · March

88climate match

Beach

October

October · April · May

81climate match

Outdoors

December

December · January · February

93climate match

The weakest month is August, scoring 31 against November’s 88 — days average 39.6°C, 16° 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

7120.2° / 5.6°

Feb

8623.4° / 8.2°

Mar

8328.1° / 12.8°

Apr

7032.4° / 16.3°

May

4735.7° / 20.8°

Jun

3538.2° / 23.4°

Jul

3239.3° / 24.3°

Aug

3139.6° / 24.6°

Sep

4036.2° / 22°

Oct

7331.4° / 16.7°

Nov

8825.4° / 10.8°

Dec

7120.2° / 6.1°

Monthly climate evidence for Piedras Negras — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	20.2°C	5.6°C	14 mm	1.7	10 h 30	71	Good coverage
February	23.4°C	8.2°C	12 mm	1.8	11 h 08	86	Good coverage
March	28.1°C	12.8°C	23 mm	2.4	11 h 55	83	Strong coverage
April	32.4°C	16.3°C	24 mm	2.3	12 h 49	70	Strong coverage
May	35.7°C	20.8°C	58 mm	3.4	13 h 34	47	Strong coverage
June	38.2°C	23.4°C	53 mm	2.9	13 h 58	35	Strong coverage
July	39.3°C	24.3°C	39 mm	3.1	13 h 48	32	Strong coverage
August	39.6°C	24.6°C	30 mm	2.2	13 h 10	31	Strong coverage
September	36.2°C	22°C	74 mm	4.1	12 h 18	40	Strong coverage
October	31.4°C	16.7°C	30 mm	2.4	11 h 26	73	Strong coverage
November	25.4°C	10.8°C	18 mm	2.4	10 h 41	88	Good coverage
December	20.2°C	6.1°C	14 mm	1.6	10 h 19	71	Good coverage

Records at PIEDRAS NEGRAS (OBS), 1955–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	37.2°C12 Jan 2000	-9.4°C13 Jan 1956	28 mm3 Jan 2007	88 mm1958 · driest 0 mm in 1993	47
February	40.0°C24 Feb 2008	-9.4°C25 Feb 1960	34 mm4 Feb 2010	54 mm1958 · driest 0 mm in 1999	47
March	40.0°C29 Mar 1998	-7.2°C27 Mar 1955	71 mm6 Mar 1999	126 mm2004 · driest 0 mm in 2021	49
April	42.8°C27 Apr 2011	-1.1°C2 Apr 1955	128 mm18 Apr 1957	321 mm1957 · driest 0 mm in 1955	47
May	45.0°C15 May 2003	5.6°C8 May 1960	136 mm26 May 1957	250 mm2015 · driest 0 mm in 1998	46
June	48.3°C27 Jun 1998	10.0°C5 Jun 1955	160 mm15 Jun 2013	226 mm1958 · driest 0 mm in 2005	45
July	46.7°C28 Jul 1995	16.7°C7 Jul 1995	158 mm22 Jul 1992	267 mm1992 · driest 0 mm in 2022	47
August	46.2°C29 Aug 2011	15.0°C24 Aug 1957	119 mm24 Aug 1999	203 mm1999 · driest 0 mm in 2015	47
September	46.1°C4 Sep 2000	8.9°C22 Sep 1995	176 mm9 Sep 2001	270 mm2018 · driest 0 mm in 2015	44
October	41.2°C11 Oct 2020	-3.3°C30 Oct 1955	112 mm15 Oct 1960	244 mm1958 · driest 0 mm in 2013	44
November	36.2°C2 Nov 2016	-7.2°C27 Nov 1956	48 mm5 Nov 1983	99 mm2004 · driest 0 mm in 2006	49
December	33.6°C15 Dec 2019	-10.6°C30 Dec 1983	75 mm11 Dec 1991	99 mm1991 · driest 0 mm in 2019	44

Typical days per month at PIEDRAS NEGRAS (OBS), 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	7	1	3	<1
February	10	4	1	<1
March	18	9	<1	<1
April	22	18	0	<1
May	24	23	0	2
June	25	25	0	1
July	26	26	0	1
August	26	26	0	<1
September	25	24	0	2
October	22	17	<1	1
November	14	5	<1	<1
December	6	<1	3	<1

How often, not how much — every day in PIEDRAS NEGRAS (OBS)’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	54%	7%	2%	5%	16.3–24.1°C
February	69%	7%	2%	3%	19.1–26.1°C
March	83%	8%	1%	3%	23.8–30.6°C
April	90%	9%	3%	4%	27.7–34.1°C
May	88%	12%	6%	5%	31.5–37.8°C
June	91%	9%	4%	8%	35.2–40.6°C
July	91%	10%	4%	6%	35.9–41.5°C
August	92%	8%	3%	6%	36.3–41.5°C
September	87%	13%	6%	10%	33.5–38.7°C
October	89%	9%	3%	8%	28.3–34.4°C
November	78%	9%	2%	7%	21.1–28.6°C
December	57%	6%	<1%	2%	16.8–22.1°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 3992619
NOAA station: MXM00076243 · PIEDRAS NEGRAS (OBS)
Station distance: 0.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 28.70°, 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 PIEDRAS NEGRAS (OBS) is what differs

Eagle Pass→Eidson Road→Colonia Venustiano Carranza→Rosita North→Las Quintas Fronterizas→Las Quintas Fronterizas Colonia→

Or put two places side by side: Piedras Negras vs Eagle Pass

Best time to visitPiedras Negras.