Mexico · 1991–2020

Best time to visit
La Concepción.

December leads for comfortable weather in La Concepción: typically 26.7°C by day, 15.9°C at night, with 22 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortDecember

Typical high26.7°C

Typical low15.9°C

Rain in December22 mm

Comfort

December

December · January · February

90climate match

Beach

March

March · November · April

89climate match

Outdoors

December

December · January · February

69climate match

The weakest month is September, scoring 29 against December’s 90 — days average 32.3°C, 8° above the 24°C the score treats as ideal, and 216 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

8826.7° / 15.8°

Feb

8527.5° / 16.4°

Mar

7530° / 18.2°

Apr

6232.8° / 20.2°

May

5234.5° / 21.7°

Jun

3634.6° / 22.5°

Jul

3733.2° / 22°

Aug

3733.4° / 21.9°

Sep

2932.3° / 21.6°

Oct

5330.8° / 19.5°

Nov

7628.8° / 17.9°

Dec

9026.7° / 15.9°

Monthly climate evidence for La Concepción — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 43 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	26.7°C	15.8°C	30 mm	4.4	22.3°C	10 h 59	88	Good coverage
February	27.5°C	16.4°C	35 mm	3.7	22.0°C	11 h 26	85	Good coverage
March	30°C	18.2°C	20 mm	2.5	23.1°C	11 h 58	75	Good coverage
April	32.8°C	20.2°C	35 mm	2.5	24.8°C	12 h 36	62	Good coverage
May	34.5°C	21.7°C	42 mm	2.9	26.7°C	13 h 07	52	Good coverage
June	34.6°C	22.5°C	118 mm	7.1	28.1°C	13 h 23	36	Good coverage
July	33.2°C	22°C	145 mm	8.5	28.4°C	13 h 17	37	Good coverage
August	33.4°C	21.9°C	145 mm	8	29.0°C	12 h 51	37	Good coverage
September	32.3°C	21.6°C	216 mm	10.4	29.3°C	12 h 14	29	Good coverage
October	30.8°C	19.5°C	130 mm	6.8	28.0°C	11 h 38	53	Good coverage
November	28.8°C	17.9°C	50 mm	4.3	25.9°C	11 h 07	76	Good coverage
December	26.7°C	15.9°C	22 mm	2.6	23.8°C	10 h 52	90	Good coverage

Records at ALAMO, 1978–2011
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	36.7°C13 Jan 2000	2.8°C9 Jan 2010	50 mm11 Jan 1981	177 mm1981 · driest 2 mm in 1987	30
February	35.6°C27 Feb 1993	4.4°C5 Feb 2011	85 mm11 Feb 1999	140 mm2007 · driest 1 mm in 1986	30
March	40.0°C31 Mar 2009	6.1°C31 Mar 1987	50 mm27 Mar 1997	117 mm1997 · driest 0 mm in 1993	30
April	45.6°C17 Apr 1998	7.2°C1 Apr 1987	112 mm27 Apr 2008	304 mm1985 · driest 0 mm in 2011	31
May	45.6°C16 May 1980	10.6°C10 May 1997	83 mm21 May 1985	191 mm1984 · driest 0 mm in 1996	31
June	45.0°C14 Jun 2005	15.0°C24 Jun 1997	247 mm16 Jun 1981	558 mm1981 · driest 18 mm in 1983	31
July	42.8°C24 Jul 1979	15.0°C8 Jul 1997	143 mm29 Jul 1985	752 mm2010 · driest 18 mm in 1979	31
August	41.7°C9 Aug 1980	15.0°C27 Aug 1997	193 mm30 Aug 2007	575 mm2007 · driest 0 mm in 1991	31
September	38.3°C13 Sep 1978	11.7°C27 Sep 2000	188 mm17 Sep 1981	645 mm1984 · driest 27 mm in 1995	31
October	38.9°C22 Oct 2006	8.9°C28 Oct 1997	160 mm4 Oct 1999	372 mm1999 · driest 3 mm in 1996	31
November	37.8°C1 Nov 2001	8.9°C7 Nov 2010	95 mm9 Nov 2011	110 mm1986 · driest 0 mm in 1988	31
December	36.7°C29 Dec 1999	0.0°C25 Dec 1983	63 mm15 Dec 2009	112 mm2009 · driest 0 mm in 1992	31

Typical days per month at ALAMO, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	22	12	<1
February	22	12	<1
March	28	20	<1
April	29	25	<1
May	31	30	1
June	30	29	3
July	31	29	4
August	31	30	4
September	29	26	6
October	29	23	4
November	26	14	2
December	21	10	<1

How often, not how much — every day in ALAMO’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	77%	15%	3%	15%	21.6–30.4°C
February	82%	15%	4%	12%	23.5–31.1°C
March	89%	10%	2%	7%	27.7–31.7°C
April	90%	10%	3%	8%	29.7–34.1°C
May	88%	13%	5%	10%	32.8–37.6°C
June	75%	28%	12%	38%	32.2–36.5°C
July	70%	31%	16%	34%	30.9–34.9°C
August	72%	30%	16%	37%	32.3–34.6°C
September	64%	36%	20%	48%	30.4–33.7°C
October	80%	22%	11%	22%	29.0–33.2°C
November	83%	17%	6%	15%	25.7–31.6°C
December	82%	12%	2%	9%	23.3–30.5°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.

1979Each stripe is one year’s mean temperature against the 25-year average. Warmest: 1994. Coolest: 2010.2011

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3824492
NOAA station: MXN00030006 · ALAMO
Station distance: 6.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 20.86°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 43 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 ALAMO is what differs

Álamo→Potrero del Llano→Castillo de Teayo→Estero del Ídolo→Chapopote Núñez→Temapache→

Or put two places side by side: La Concepción vs Álamo

Best time to visitLa Concepción.

December

March

December

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
La Concepción.

The whole year,
without the guesswork.

Nearby, measured,
and named.