Mexico City climate

Name: Mexico City
Address: MX

Mexico City is warmest in April, with average highs of 25 °C, and coldest in January, when nights average 6.9 °C. September is the wettest month (179 mm) and December the driest (15 mm). Figures are 1991–2020 climate normals.

Across a full year Mexico City averages 1,006 mm of rain, 60 days above 25 °C and 0 days below freezing.

Mexico · population 12,294,193 · 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 April 25 °C
Coldest month January 6.9 °C
Driest month December 15 mm
Wettest month September 179 mm
Least cloud March 33 % cloud
Hottest on record May 33 °C
Coldest on record January -0.4 °C

What to expectMexico City through the year

Mexico City has a clear annual cycle: average daily highs run from 20 °C in January to 25 °C in April, a swing of 5.3 °C in mean temperature across the year.

Counted across a normal year, 60 days a year reach 25 °C, 2 of them reach 30 °C, 0 nights drop below freezing. The warmest reading in the 1991–2020 record is 33 °C, in May.

Rain is strongly seasonal. September averages 179 mm against 15 mm in December — 12 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	20.2 °C	22 mm	39 %
February	22.3 °C	19 mm	33 %
March	24.3 °C	29 mm	33 %
April	25.4 °C	49 mm	40 %
May	25.0 °C	76 mm	49 %
June	23.0 °C	152 mm	70 %
July	21.3 °C	169 mm	76 %
August	21.4 °C	168 mm	77 %
September	20.5 °C	179 mm	81 %
October	20.4 °C	96 mm	67 %
November	20.3 °C	32 mm	49 %
December	20.4 °C	15 mm	40 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	20.2 °C	6.9 °C	13.1 °C	26.2 °C	-0.4 °C	0	0
February	22.3 °C	8.0 °C	14.8 °C	29.6 °C	0.1 °C	4	0
March	24.3 °C	9.4 °C	16.6 °C	31.6 °C	1.0 °C	13	0
April	25.4 °C	11.1 °C	18.1 °C	31.7 °C	4.3 °C	18	0
May	25.0 °C	12.1 °C	18.4 °C	33.4 °C	5.7 °C	15	1
June	23.0 °C	12.8 °C	17.4 °C	31.0 °C	7.4 °C	7	0
July	21.3 °C	12.0 °C	16.1 °C	26.6 °C	8.2 °C	1	0
August	21.4 °C	12.2 °C	16.2 °C	26.7 °C	9.0 °C	0	0
September	20.5 °C	12.1 °C	15.7 °C	26.7 °C	6.1 °C	0	0
October	20.4 °C	10.5 °C	14.8 °C	27.6 °C	1.4 °C	1	0
November	20.3 °C	8.7 °C	14.0 °C	28.5 °C	0.3 °C	1	0
December	20.4 °C	7.6 °C	13.5 °C	27.1 °C	-0.4 °C	0	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	22 mm	4	11 h/day	39 %	59 %	13 km/h
February	19 mm	4	12 h/day	33 %	53 %	14 km/h
March	29 mm	6	12 h/day	33 %	48 %	15 km/h
April	49 mm	9	13 h/day	40 %	49 %	15 km/h
May	76 mm	13	13 h/day	49 %	57 %	14 km/h
June	152 mm	18	13 h/day	70 %	70 %	14 km/h
July	169 mm	23	13 h/day	76 %	77 %	12 km/h
August	168 mm	23	13 h/day	77 %	78 %	13 km/h
September	179 mm	21	12 h/day	81 %	80 %	12 km/h
October	96 mm	14	12 h/day	67 %	76 %	13 km/h
November	32 mm	7	11 h/day	49 %	69 %	12 km/h
December	15 mm	3	11 h/day	40 %	61 %	12 km/h

How Mexico City 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
Mexico City	25 °C	6.9 °C	1,006 mm	60
Gustavo Adolfo Madero · Mexico	25 °C	5.9 °C	786 mm	55
Coyoacán · Mexico	25 °C	6.3 °C	1,298 mm	58
Iztapalapa · Mexico	25 °C	7.0 °C	1,460 mm	62
Ciudad Nezahualcoyotl · Mexico	26 °C	6.5 °C	729 mm	79
Magdalena Contreras · Mexico	25 °C	5.8 °C	1,298 mm	41
Tlalpan · Mexico	25 °C	7.0 °C	1,291 mm	49

Where Mexico City ranks

Ranking	Position	Value
Places with the best weather in North America in March	8th of 50	93/100

Planning a trip? See the best time to visit Mexico City.

QuestionsCommon questions about Mexico City’s climate

When is the best time to visit Mexico City?

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

How hot does Mexico City get?

In April, the warmest month, daily highs average 25 °C. About 2 days a year pass 30 °C. The highest value in the 1991–2020 record is 33 °C.

How cold does it get in winter?

Nights average 6.9 °C in January, the coldest month. A normal year has 0 nights below freezing.

Which month is wettest in Mexico City?

September, averaging 179 mm over 21 days with rain. The driest month is December with 15 mm. The year as a whole averages 1,006 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 Mexico City 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: 19.428°, -99.128° (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.