Mexico · 1991–2020

Best time to visit
San Andrés.

January leads for comfortable weather in San Andrés: typically 25°C by day, 8.5°C at night, with 21 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJanuary

Typical high25°C

Typical low8.5°C

Rain in January21 mm

Comfort

January

January · December · November

85climate match

Beach

November

November · March · October

73climate match

Outdoors

January

January · December · February

82climate match

The weakest month is June, scoring 34 against January’s 85 — days average 37.3°C, 13° 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

8525° / 8.5°

Feb

8326.8° / 10.7°

Mar

7231.7° / 13.6°

Apr

5935.1° / 16.8°

May

4336.7° / 20.1°

Jun

3437.3° / 22.3°

Jul

4137° / 21.8°

Aug

3837.7° / 22.2°

Sep

3735.4° / 20.5°

Oct

6332.2° / 16.9°

Nov

8427.6° / 12.7°

Dec

8525.4° / 8.9°

Monthly climate evidence for San Andrés — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	25°C	8.5°C	21 mm	1.9	10 h 49	85	Good coverage
February	26.8°C	10.7°C	15 mm	1.7	11 h 19	83	Good coverage
March	31.7°C	13.6°C	29 mm	2.4	11 h 57	72	Good coverage
April	35.1°C	16.8°C	47 mm	3.1	12 h 41	59	Good coverage
May	36.7°C	20.1°C	70 mm	4.2	13 h 17	43	Good coverage
June	37.3°C	22.3°C	83 mm	5	13 h 36	34	Good coverage
July	37°C	21.8°C	62 mm	3	13 h 28	41	Good coverage
August	37.7°C	22.2°C	60 mm	3.5	12 h 58	38	Good coverage
September	35.4°C	20.5°C	123 mm	6.7	12 h 15	37	Good coverage
October	32.2°C	16.9°C	72 mm	4.2	11 h 34	63	Good coverage
November	27.6°C	12.7°C	15 mm	1.8	10 h 58	84	Good coverage
December	25.4°C	8.9°C	16 mm	1.7	10 h 40	85	Good coverage

Records at GUEMEZ, 1963–2011
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	40.0°C10 Jan 2006	-7.2°C14 Jan 1975	46 mm18 Jan 1984	136 mm1992 · driest 0 mm in 1986	49
February	45.0°C3 Feb 2006	-5.0°C9 Feb 1973	41 mm24 Feb 2005	82 mm2005 · driest 0 mm in 1976	49
March	47.8°C26 Mar 2006	0.0°C5 Mar 1965	92 mm9 Mar 2002	92 mm2002 · driest 0 mm in 1988	48
April	48.9°C14 Apr 1998	1.7°C9 Apr 2007	77 mm26 Apr 2004	198 mm2004 · driest 0 mm in 1983	49
May	48.9°C16 May 2006	8.9°C4 May 1970	122 mm27 May 1983	519 mm1972 · driest 7 mm in 1989	49
June	46.7°C14 Jun 2003	11.7°C2 Jun 1987	126 mm10 Jun 1972	375 mm1972 · driest 0 mm in 1990	49
July	48.9°C8 Jul 2005	13.9°C11 Jul 1991	116 mm2 Jul 1991	296 mm1975 · driest 0 mm in 1997	48
August	48.9°C26 Aug 2005	15.6°C28 Aug 1979	160 mm3 Aug 1973	362 mm1973 · driest 0 mm in 1993	49
September	48.9°C28 Sep 2005	10.0°C24 Sep 1975	181 mm22 Sep 1974	436 mm1978 · driest 13 mm in 1999	49
October	47.8°C7 Oct 2003	2.8°C31 Oct 1993	211 mm5 Oct 1971	312 mm1966 · driest 0 mm in 1984	48
November	41.7°C1 Nov 2004	-3.3°C26 Nov 1974	60 mm21 Nov 1977	165 mm1976 · driest 0 mm in 1974	48
December	38.9°C9 Dec 2004	-8.3°C24 Dec 1989	81 mm2 Dec 1979	173 mm1979 · driest 0 mm in 2010	49

Typical days per month at GUEMEZ, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	16	9	<1	<1
February	18	12	<1	<1
March	27	23	0	<1
April	29	26	0	2
May	31	30	0	2
June	30	30	0	2
July	31	30	0	2
August	31	31	0	2
September	29	28	0	3
October	28	23	0	2
November	21	13	<1	<1
December	17	9	<1	<1

How often, not how much — every day in GUEMEZ’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	70%	8%	3%	5%	19.4–27.4°C
February	80%	7%	2%	5%	21.0–30.1°C
March	91%	7%	2%	4%	27.1–33.4°C
April	88%	12%	6%	11%	31.6–37.4°C
May	82%	18%	9%	17%	33.1–39.1°C
June	83%	17%	8%	16%	34.3–39.7°C
July	87%	12%	6%	11%	33.2–40.3°C
August	86%	14%	6%	15%	34.1–39.7°C
September	78%	22%	13%	23%	32.0–37.7°C
October	87%	13%	6%	10%	29.2–33.9°C
November	88%	7%	2%	5%	24.1–29.8°C
December	76%	7%	2%	4%	19.5–29.0°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.

1963Each stripe is one year’s mean temperature against the 44-year average. Warmest: 2005. Coolest: 1976.2010

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3519944
NOAA station: MXN00028036 · GUEMEZ
Station distance: 13.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 23.80°, 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 GUEMEZ is what differs

Güémez→Miraflores→Revolución Verde→José López Portillo→Viento Libre→Ricardo Flores Magón→

Or put two places side by side: San Andrés vs Güémez

Best time to visitSan Andrés.

January

November

January

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
San Andrés.

The whole year,
without the guesswork.

Nearby, measured,
and named.