Celaya climate

Name: Celaya
Address: MX

Celaya is warmest in May, with average highs of 30 °C, and coldest in January, when nights average 8.0 °C. July is the wettest month (136 mm) and December the driest (3.9 mm). Figures are 1991–2020 climate normals.

Across a full year Celaya averages 642 mm of rain, 222 days above 25 °C and 0 days below freezing.

Mexico · population 340,387 · 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 30 °C
Coldest month January 8.0 °C
Driest month December 4 mm
Wettest month July 136 mm
Least cloud March 30 % cloud
Hottest on record May 37 °C
Coldest on record December -0.8 °C

What to expectCelaya through the year

Celaya has a clear annual cycle: average daily highs run from 23 °C in January to 30 °C in May, a swing of 7.3 °C in mean temperature across the year.

Counted across a normal year, 222 days a year reach 25 °C, 48 of them reach 30 °C, 0 nights drop below freezing. The warmest reading in the 1991–2020 record is 37 °C, in May.

Rain is strongly seasonal. July averages 136 mm against 4 mm in December — 35 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	23.2 °C	10 mm	40 %
February	25.4 °C	13 mm	32 %
March	27.9 °C	10 mm	30 %
April	30.0 °C	11 mm	37 %
May	30.3 °C	43 mm	41 %
June	27.8 °C	122 mm	60 %
July	25.7 °C	136 mm	69 %
August	25.8 °C	120 mm	67 %
September	24.8 °C	117 mm	72 %
October	24.8 °C	44 mm	57 %
November	24.2 °C	12 mm	40 %
December	23.6 °C	4 mm	39 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	23.2 °C	8.0 °C	15.1 °C	27.7 °C	1.5 °C	6	0
February	25.4 °C	9.2 °C	16.9 °C	31.7 °C	1.5 °C	17	0
March	27.9 °C	10.9 °C	19.2 °C	33.6 °C	2.4 °C	28	5
April	30.0 °C	13.2 °C	21.6 °C	35.0 °C	8.4 °C	29	17
May	30.3 °C	14.9 °C	22.4 °C	36.6 °C	8.2 °C	30	18
June	27.8 °C	15.3 °C	21.0 °C	35.3 °C	10.4 °C	24	7
July	25.7 °C	14.6 °C	19.4 °C	31.7 °C	11.2 °C	19	0
August	25.8 °C	14.7 °C	19.5 °C	32.0 °C	11.6 °C	21	0
September	24.8 °C	14.5 °C	18.9 °C	30.4 °C	7.0 °C	13	0
October	24.8 °C	12.8 °C	18.1 °C	30.0 °C	3.9 °C	15	0
November	24.2 °C	10.6 °C	16.8 °C	29.6 °C	1.0 °C	11	0
December	23.6 °C	8.8 °C	15.7 °C	28.2 °C	-0.8 °C	8	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	10 mm	2	11 h/day	40 %	55 %	14 km/h
February	13 mm	2	11 h/day	32 %	50 %	15 km/h
March	10 mm	2	12 h/day	30 %	43 %	17 km/h
April	11 mm	2	13 h/day	37 %	40 %	17 km/h
May	43 mm	7	13 h/day	41 %	49 %	15 km/h
June	122 mm	13	13 h/day	60 %	65 %	14 km/h
July	136 mm	17	13 h/day	69 %	73 %	13 km/h
August	120 mm	16	13 h/day	67 %	72 %	13 km/h
September	117 mm	15	12 h/day	72 %	74 %	13 km/h
October	44 mm	7	12 h/day	57 %	67 %	14 km/h
November	12 mm	2	11 h/day	40 %	61 %	14 km/h
December	4 mm	1	11 h/day	39 %	56 %	13 km/h

How Celaya 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
Celaya	30 °C	8.0 °C	642 mm	222
Salamanca · Mexico	32 °C	8.8 °C	685 mm	264
San Miguel de Allende · Mexico	29 °C	8.2 °C	571 mm	174
Santiago de Querétaro · Mexico	30 °C	8.3 °C	628 mm	205
Irapuato · Mexico	31 °C	8.6 °C	646 mm	256
Morelia · Mexico	28 °C	8.7 °C	696 mm	112
León de los Aldama · Mexico	30 °C	8.3 °C	568 mm	199

Where Celaya ranks

Ranking	Position	Value
The driest places in North America in December	4th of 50	3.9 mm
The driest places in North America in November	19th of 50	12 mm
Places with the best weather in North America in November	21st of 50	95/100
Places with the best weather in North America in December	22nd of 50	94/100
Places with the best weather in North America in January	27th of 50	94/100
Places with the best weather in North America year-round	29th of 50	85/100

Planning a trip? See the best time to visit Celaya.

QuestionsCommon questions about Celaya’s climate

When is the best time to visit Celaya?

That depends on what you want, so the honest answer is a comparison rather than a single month. March, July, 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 Celaya get?

In May, the warmest month, daily highs average 30 °C. About 48 days a year pass 30 °C. The highest value in the 1991–2020 record is 37 °C.

How cold does it get in winter?

Nights average 8.0 °C in January, the coldest month. A normal year has 0 nights below freezing.

Which month is wettest in Celaya?

July, averaging 136 mm over 17 days with rain. The driest month is December with 4 mm. The year as a whole averages 642 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 Celaya 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: 20.522°, -100.814° (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.