Mexico · 1991–2020

Best time to visit
El Carmen.

December leads for comfortable weather in El Carmen: typically 31.9°C by day, 19.8°C at night, with 9 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortDecember

Typical high31.9°C

Typical low19.8°C

Rain in December9 mm

Comfort

December

December · January · February

65climate match

Beach

December

December · January · February

88climate match

Outdoors

December

December · January · February

46climate match

The weakest month is June, scoring 5 against December’s 65 — 430 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

6432.4° / 19.6°

Feb

6432.4° / 19.5°

Mar

6232.9° / 19.5°

Apr

6133.2° / 19.9°

May

5233.3° / 20.5°

Jun

533° / 20.4°

Jul

532.8° / 20.1°

Aug

832.6° / 20.1°

Sep

532.9° / 20.1°

Oct

2832.2° / 20.2°

Nov

6332.6° / 19.9°

Dec

6531.9° / 19.8°

Monthly climate evidence for El Carmen — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 44 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	32.4°C	19.6°C	16 mm	0.7	28.4°C	11 h 13	64	Good coverage
February	32.4°C	19.5°C	10 mm	0.4	28.1°C	11 h 34	64	Good coverage
March	32.9°C	19.5°C	1 mm	0	27.7°C	12 h	62	Good coverage
April	33.2°C	19.9°C	0 mm	0	27.9°C	12 h 30	61	Good coverage
May	33.3°C	20.5°C	81 mm	3.9	28.9°C	12 h 54	52	Good coverage
June	33°C	20.4°C	430 mm	12.6	29.8°C	13 h 07	5	Good coverage
July	32.8°C	20.1°C	390 mm	13	30.3°C	13 h 02	5	Good coverage
August	32.6°C	20.1°C	354 mm	14	30.5°C	12 h 41	8	Good coverage
September	32.9°C	20.1°C	456 mm	14.1	30.0°C	12 h 13	5	Good coverage
October	32.2°C	20.2°C	261 mm	7.3	29.7°C	11 h 44	28	Good coverage
November	32.6°C	19.9°C	36 mm	1.2	29.7°C	11 h 19	63	Good coverage
December	31.9°C	19.8°C	9 mm	0.5	29.0°C	11 h 08	65	Good coverage

Records at SAN LUIS ACATLAN, 1962–2012
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	37.8°C18 Jan 1966	10.0°C5 Jan 1976	120 mm16 Jan 2004	143 mm2004 · driest 0 mm in 1994	41
February	38.3°C27 Feb 1976	5.6°C14 Feb 1976	67 mm25 Feb 1983	100 mm2010 · driest 0 mm in 1975	44
March	39.4°C17 Mar 1966	10.0°C26 Mar 1965	29 mm15 Mar 1983	42 mm1983 · driest 0 mm in 1989	44
April	38.9°C30 Apr 1969	10.0°C12 Apr 1992	40 mm3 Apr 1966	90 mm1984 · driest 0 mm in 2010	46
May	38.9°C8 May 1969	10.6°C24 May 1975	103 mm30 May 1978	633 mm2000 · driest 0 mm in 1988	43
June	38.9°C9 Jun 1971	10.0°C12 Jun 1976	210 mm26 Jun 1993	1098 mm2003 · driest 0 mm in 1965	44
July	38.9°C5 Jul 1969	11.7°C3 Jul 1968	126 mm4 Jul 1988	778 mm2011 · driest 20 mm in 2012	41
August	40.0°C26 Aug 1962	11.7°C31 Aug 1976	160 mm13 Aug 1969	913 mm1969 · driest 66 mm in 1982	44
September	38.9°C21 Sep 1962	11.7°C9 Sep 1968	180 mm7 Sep 1998	1323 mm1998 · driest 61 mm in 2007	44
October	38.9°C4 Oct 1966	12.8°C12 Oct 1970	280 mm8 Oct 1997	1120 mm1998 · driest 0 mm in 2001	44
November	38.9°C1 Nov 1970	11.7°C23 Nov 1968	120 mm3 Nov 1998	472 mm1964 · driest 0 mm in 1967	45
December	38.9°C11 Dec 1969	10.6°C17 Dec 1967	80 mm16 Dec 1977	93 mm1977 · driest 0 mm in 1971	40

Typical days per month at SAN LUIS ACATLAN, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	30	28	<1
February	28	26	<1
March	31	29	<1
April	30	29	0
May	31	30	2
June	30	29	10
July	30	29	10
August	31	30	11
September	30	29	11
October	30	27	5
November	30	28	<1
December	30	25	<1

How often, not how much — every day in SAN LUIS ACATLAN’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	98%	2%	1%	1%	31.2–34.7°C
February	99%	1%	<1%	<1%	31.2–34.9°C
March	100%	<1%	<1%	<1%	31.8–35.4°C
April	99%	1%	<1%	<1%	32.6–36.1°C
May	89%	11%	6%	14%	32.2–36.2°C
June	57%	43%	28%	60%	31.4–36.4°C
July	54%	46%	28%	65%	30.4–35.1°C
August	51%	49%	30%	70%	30.4–34.2°C
September	46%	53%	30%	72%	29.9–34.2°C
October	75%	26%	14%	26%	30.2–34.7°C
November	93%	6%	3%	4%	30.9–34.0°C
December	99%	1%	<1%	<1%	29.1–34.8°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.

1966Each stripe is one year’s mean temperature against the 25-year average. Warmest: 1993. Coolest: 1968.2011

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 8860282
NOAA station: MXN00012068 · SAN LUIS ACATLAN
Station distance: 6.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 16.81°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 44 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 LUIS ACATLAN is what differs

San Luis Acatlán→Yoloxóchitl→Cuanacaxtitlán→Horcasitas→Jolotichán→Miahuichán→

Or put two places side by side: El Carmen vs San Luis Acatlán

Best time to visitEl Carmen.

December

December

December

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
El Carmen.

The whole year,
without the guesswork.

Nearby, measured,
and named.