San Miguel de Allende climate

Name: San Miguel de Allende
Address: MX

San Miguel de Allende is warmest in May, with average highs of 29 °C, and coldest in January, when nights average 8.2 °C. July is the wettest month (115 mm) and December the driest (4.8 mm). Figures are 1991–2020 climate normals.

Across a full year San Miguel de Allende averages 571 mm of rain, 174 days above 25 °C and 0 days below freezing.

Mexico · population 174,615 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month May 29 °C
Coldest month January 8.2 °C
Driest month December 5 mm
Wettest month July 115 mm
Least cloud March 33 % cloud
Hottest on record May 35 °C
Coldest on record December -1.7 °C

What to expectSan Miguel de Allende through the year

San Miguel de Allende has a clear annual cycle: average daily highs run from 22 °C in January to 29 °C in May, a swing of 7.0 °C in mean temperature across the year.

Counted across a normal year, 174 days a year reach 25 °C, 30 of them reach 30 °C, 0 nights drop below freezing. The warmest reading in the 1991–2020 record is 35 °C, in May.

Rain is strongly seasonal. July averages 115 mm against 5 mm in December — 24 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	22.1 °C	12 mm	42 %
February	24.3 °C	13 mm	35 %
March	26.7 °C	12 mm	33 %
April	28.8 °C	15 mm	39 %
May	29.1 °C	44 mm	41 %
June	26.7 °C	99 mm	57 %
July	24.9 °C	115 mm	66 %
August	25.1 °C	103 mm	64 %
September	23.8 °C	104 mm	70 %
October	23.9 °C	38 mm	56 %
November	23.3 °C	11 mm	42 %
December	22.6 °C	5 mm	42 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	22.1 °C	8.2 °C	14.4 °C	27.0 °C	0.7 °C	2	0
February	24.3 °C	9.5 °C	16.2 °C	30.0 °C	1.8 °C	13	0
March	26.7 °C	11.1 °C	18.4 °C	33.0 °C	1.1 °C	25	2
April	28.8 °C	13.4 °C	20.8 °C	33.6 °C	6.9 °C	28	10
May	29.1 °C	14.8 °C	21.4 °C	35.4 °C	7.7 °C	28	13
June	26.7 °C	15.0 °C	20.1 °C	34.2 °C	8.2 °C	20	5
July	24.9 °C	14.6 °C	18.8 °C	31.3 °C	10.8 °C	13	0
August	25.1 °C	14.7 °C	18.9 °C	31.2 °C	10.5 °C	15	0
September	23.8 °C	14.3 °C	18.2 °C	30.1 °C	6.7 °C	8	0
October	23.9 °C	12.5 °C	17.3 °C	29.4 °C	2.6 °C	11	0
November	23.3 °C	10.6 °C	16.1 °C	28.7 °C	0.3 °C	8	0
December	22.6 °C	9.1 °C	15.1 °C	27.1 °C	-1.7 °C	4	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	12 mm	2	11 h/day	42 %	54 %	16 km/h
February	13 mm	2	11 h/day	35 %	50 %	17 km/h
March	12 mm	2	12 h/day	33 %	44 %	19 km/h
April	15 mm	3	13 h/day	39 %	41 %	19 km/h
May	44 mm	7	13 h/day	41 %	51 %	17 km/h
June	99 mm	11	13 h/day	57 %	66 %	17 km/h
July	115 mm	15	13 h/day	66 %	73 %	17 km/h
August	103 mm	13	13 h/day	64 %	73 %	17 km/h
September	104 mm	12	12 h/day	70 %	76 %	16 km/h
October	38 mm	6	12 h/day	56 %	69 %	16 km/h
November	11 mm	2	11 h/day	42 %	62 %	15 km/h
December	5 mm	1	11 h/day	42 %	55 %	15 km/h

How San Miguel de Allende compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
San Miguel de Allende	29 °C	8.2 °C	571 mm	174
Celaya · Mexico	30 °C	8.0 °C	642 mm	222
Santiago de Querétaro · Mexico	30 °C	8.3 °C	628 mm	205
Salamanca · Mexico	32 °C	8.8 °C	685 mm	264
Irapuato · Mexico	31 °C	8.6 °C	646 mm	256
León de los Aldama · Mexico	30 °C	8.3 °C	568 mm	199
San Luis Potosí · Mexico	29 °C	6.7 °C	487 mm	163

Where San Miguel de Allende ranks

Ranking	Position	Value
Places with the best weather in North America in December	8th of 50	95/100
Places with the best weather in North America in November	9th of 50	96/100
Places with the best weather in North America year-round	10th of 50	88/100
The driest places in North America in December	10th of 50	4.8 mm
The driest places in North America in November	11th of 50	11 mm
Places with the best weather in North America in February	20th of 50	93/100

Planning a trip? See the best time to visit San Miguel de Allende.

QuestionsCommon questions about San Miguel de Allende’s climate

When is the best time to visit San Miguel de Allende?

That depends on what you want, so the honest answer is a comparison rather than a single month. April, June, August sit closest to 20 °C on average, May is the warmest month and December the driest. The month-by-month table above has the full picture.

How hot does San Miguel de Allende get?

In May, the warmest month, daily highs average 29 °C. About 30 days a year pass 30 °C. The highest value in the 1991–2020 record is 35 °C.

How cold does it get in winter?

Nights average 8.2 °C in January, the coldest month. A normal year has 0 nights below freezing.

Which month is wettest in San Miguel de Allende?

July, averaging 115 mm over 15 days with rain. The driest month is December with 5 mm. The year as a whole averages 571 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in San Miguel de Allende rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: 20.915°, -100.744° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.