Mexico · 1991–2020

Best time to visit
Las Lajas.

December leads for comfortable weather in Las Lajas: typically 30.5°C by day, 19.3°C at night, with 11 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortDecember

Typical high30.5°C

Typical low19.3°C

Rain in December11 mm

Comfort

December

December · February · January

71climate match

Beach

November

November · April · December

94climate match

Outdoors

December

December · February · January

52climate match

The weakest month is June, scoring 10 against December’s 71 — 349 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

6931.1° / 19°

Feb

7030.8° / 19.2°

Mar

6731.2° / 19.8°

Apr

6431.7° / 20.7°

May

5532.7° / 21.8°

Jun

1031.9° / 21.8°

Jul

2131.5° / 21.5°

Aug

1531.4° / 21.6°

Sep

1130.8° / 21.5°

Oct

3930.8° / 21.5°

Nov

6930.4° / 20.3°

Dec

7130.5° / 19.3°

Monthly climate evidence for Las Lajas — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 23 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	31.1°C	19°C	8 mm	0.5	28.5°C	11 h 14	69	Good coverage
February	30.8°C	19.2°C	10 mm	0.4	28.2°C	11 h 35	70	Good coverage
March	31.2°C	19.8°C	1 mm	0	28.0°C	12 h 00	67	Good coverage
April	31.7°C	20.7°C	0 mm	0	28.2°C	12 h 29	64	Good coverage
May	32.7°C	21.8°C	64 mm	2.4	29.1°C	12 h 54	55	Good coverage
June	31.9°C	21.8°C	349 mm	11.9	29.9°C	13 h 07	10	Good coverage
July	31.5°C	21.5°C	279 mm	11.7	30.3°C	13 h 02	21	Good coverage
August	31.4°C	21.6°C	325 mm	12.7	30.5°C	12 h 41	15	Good coverage
September	30.8°C	21.5°C	353 mm	13.9	29.9°C	12 h 12	11	Good coverage
October	30.8°C	21.5°C	200 mm	7.1	29.7°C	11 h 44	39	Good coverage
November	30.4°C	20.3°C	22 mm	1	29.7°C	11 h 20	69	Good coverage
December	30.5°C	19.3°C	11 mm	0.4	29.0°C	11 h 09	71	Good coverage

Records at COPALA, 1961–2012
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	41.7°C1 Jan 2005	8.9°C27 Jan 1965	90 mm25 Jan 1980	160 mm1980 · driest 0 mm in 1970	48
February	41.7°C13 Feb 2005	8.9°C25 Feb 1965	128 mm4 Feb 2010	190 mm2010 · driest 0 mm in 2012	48
March	38.9°C23 Mar 1991	7.8°C3 Mar 1965	19 mm2 Mar 2001	20 mm2001 · driest 0 mm in 1988	47
April	38.9°C10 Apr 1963	10.6°C2 Apr 1966	132 mm5 Apr 1973	140 mm1973 · driest 0 mm in 2012	45
May	39.4°C6 May 1970	13.9°C3 May 1983	195 mm30 May 1978	595 mm2000 · driest 0 mm in 1963	47
June	39.4°C8 Jun 1991	10.6°C16 Jun 1965	320 mm15 Jun 1974	1124 mm1974 · driest 54 mm in 1980	48
July	40.0°C20 Jul 1969	15.0°C18 Jul 1991	184 mm4 Jul 1990	775 mm2011 · driest 0 mm in 1963	48
August	39.4°C21 Aug 1982	15.0°C9 Aug 1977	196 mm22 Aug 2010	899 mm1969 · driest 12 mm in 1982	46
September	37.8°C26 Sep 2004	11.7°C26 Sep 1966	172 mm22 Sep 1982	694 mm1989 · driest 42 mm in 1990	48
October	37.2°C26 Oct 1969	13.9°C16 Oct 1971	226 mm8 Oct 1997	565 mm1997 · driest 7 mm in 1987	48
November	37.2°C30 Nov 1990	12.8°C19 Nov 1964	146 mm3 Nov 2002	409 mm1961 · driest 0 mm in 2001	50
December	41.7°C25 Dec 2004	10.0°C28 Dec 1964	80 mm17 Dec 1997	80 mm1997 · driest 0 mm in 1989	48

Typical days per month at COPALA, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	30	23	<1
February	27	19	<1
March	29	22	<1
April	29	23	0
May	31	28	2
June	30	25	7
July	31	25	6
August	30	23	7
September	29	21	8
October	31	21	4
November	29	21	<1
December	30	22	<1

How often, not how much — every day in COPALA’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%	28.6–33.3°C
February	99%	1%	<1%	<1%	26.6–33.2°C
March	100%	<1%	<1%	0%	27.6–34.1°C
April	100%	<1%	<1%	<1%	28.9–34.2°C
May	92%	7%	4%	9%	30.4–34.7°C
June	63%	38%	22%	51%	29.4–33.4°C
July	64%	37%	17%	48%	29.5–33.7°C
August	62%	39%	22%	55%	28.9–33.2°C
September	57%	44%	26%	58%	28.1–32.9°C
October	79%	21%	11%	18%	27.9–33.3°C
November	95%	5%	3%	2%	27.0–33.2°C
December	99%	1%	<1%	<1%	27.1–32.5°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.

1965Each stripe is one year’s mean temperature against the 34-year average. Warmest: 1990. Coolest: 1965.2010

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 8863831
NOAA station: MXN00012022 · COPALA
Station distance: 8.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 16.58°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 23 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 COPALA is what differs

Copala→Atrixco→El Salto→San Francisco→El Papayo→Los Lirios→

Or put two places side by side: Las Lajas vs Copala

Best time to visitLas Lajas.

December

November

December

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Las Lajas.

The whole year,
without the guesswork.

Nearby, measured,
and named.