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Average Weather in Mexico City Mexico

In Mexico City, the wet season is warm and overcast and the dry season is comfortable and partly cloudy. Over the course of the year, the temperature typically varies from 43°F to 80°F and is rarely below 37°F or above 86°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

Average Hourly Temperature in Mexico City12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDeccoldcoolcomfortablewarmchilly
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

In Mexico City, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year in Mexico City begins around October 30 and lasts for 7.0 months, ending around May 31. On February 24, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 68% of the time, and overcast or mostly cloudy 32% of the time.

The cloudier part of the year begins around May 31 and lasts for 5.0 months, ending around October 30. On September 12, the cloudiest day of the year, the sky is overcast or mostly cloudy 89% of the time, and clear, mostly clear, or partly cloudy 10% of the time.

Cloud Cover

Cloud Cover in Mexico Cityclearerclearercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecSep 1289%Sep 1289%Feb 2432%Feb 2432%Oct 3062%Oct 3062%May 3161%May 3161%overcastmostly cloudypartly cloudyclear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Mexico City varies very significantly throughout the year.

The wetter season lasts 4.4 months, from May 28 to October 9, with a greater than 41% chance of a given day being a wet day. The chance of a wet day peaks at 79% on July 3.

The drier season lasts 7.6 months, from October 9 to May 28. The smallest chance of a wet day is 2% on December 8.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 79% on July 3.

Daily Chance of Precipitation

Daily Chance of Precipitation in Mexico Citywetdrydry0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 379%Jul 379%Dec 82%Dec 82%May 2841%May 2841%Oct 941%Oct 941%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Mexico City experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 6.9 months, from April 14 to November 11, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 2, with an average total accumulation of 5.4 inches.

The rainless period of the year lasts for 5.1 months, from November 11 to April 14. The least rain falls around December 12, with and average total accumulation of 0.1 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Sun

The length of the day in Mexico City varies over the course of the year. In 2017, the shortest day is December 21, with 10 hours, 58 minutes of daylight; the longest day is June 21, with 13 hours, 18 minutes of daylight.

Hours of Daylight and Twilight

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 6:30 AM on April 1, and the latest sunrise is 1 hour, 6 minutes later at 7:35 AM on October 28. The earliest sunset is at 5:56 PM on November 25, and the latest sunset is 2 hours, 23 minutes later at 8:19 PM on July 4.

Daylight saving time (DST) is observed in Mexico City during 2017, starting in the spring on April 2, lasting 6.8 months, and ending in the fall on October 29.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in Mexico City2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecApr 16:30 AMApr 16:30 AM8:19 PMJul 48:19 PMJul 4Nov 255:56 PMNov 255:56 PM7:35 AMOct 287:35 AMOct 28Apr 2DSTApr 2DSTDSTOct 29DSTOct 29daynightnightnightnight
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Mexico City, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.

Humidity Comfort Levels

Humidity Comfort Levels in Mexico City0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecFeb 280%Feb 280%Aug 300%Aug 300%comfortablecomfortabledrydry
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Mexico City does not vary significantly over the course of the year, remaining within 0.4 miles per hour of 2.5 miles per hour throughout.

Average Wind Speed

Average Wind Speed in Mexico City0.0 mph0.5 mph1.0 mph1.5 mph2.0 mph2.5 mph3.0 mph3.5 mph4.0 mph4.5 mph5.0 mph5.5 mphJanFebMarAprMayJunJulAugSepOctNovDecMar 132.9 mphMar 132.9 mphMay 312.2 mphMay 312.2 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Mexico City varies throughout the year.

The wind is most often from the south for 5.0 days, from March 5 to March 10; for 2.3 months, from March 12 to May 22; and for 2.5 months, from December 8 to February 22, with a peak percentage of 39% on April 2. The wind is most often from the north for 1.6 weeks, from May 22 to June 2 and for 2.2 months, from October 1 to December 8, with a peak percentage of 46% on October 29. The wind is most often from the east for 4.0 months, from June 2 to October 1, with a peak percentage of 70% on July 24.

Wind Direction

Wind Direction in Mexico CitySWSNENS0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecwestsoutheastnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 2.8 months, from March 7 to June 2, with an average daily incident shortwave energy per square meter above 6.8 kWh. The brightest day of the year is April 19, with an average of 7.3 kWh.

The darker period of the year lasts for 2.5 months, from November 8 to January 25, with an average daily incident shortwave energy per square meter below 5.5 kWh. The darkest day of the year is December 22, with an average of 5.0 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in Mexico Citybrightdarkdark0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhJanFebMarAprMayJunJulAugSepOctNovDecApr 197.3 kWhApr 197.3 kWhDec 225.0 kWhDec 225.0 kWhMar 76.8 kWhMar 76.8 kWhJun 26.9 kWhJun 26.9 kWhNov 85.5 kWhNov 85.5 kWhJan 255.5 kWhJan 255.5 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Mexico City are 19.428 deg latitude, -99.128 deg longitude, and 7,343 ft elevation.

The topography within 2 miles of Mexico City contains only modest variations in elevation, with a maximum elevation change of 105 feet and an average elevation above sea level of 7,344 feet. Within 10 miles contains only modest variations in elevation (1,726 feet). Within 50 miles contains very significant variations in elevation (14,606 feet).

The area within 2 miles of Mexico City is covered by artificial surfaces (100%), within 10 miles by artificial surfaces (87%), and within 50 miles by cropland (39%) and trees (25%).

Data Sources

This report illustrates the typical weather in Mexico City, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Mexico City.

For each station, the records are corrected for the elevation difference between that station and Mexico City according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Mexico City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Mexico City and a given station.

The stations contributing to this reconstruction are: Benito Juárez International Airport (97%, 5.9 kilometers, east) and Licenciado Adolfo López Mateos International Airport (3.2%, 47 kilometers, west).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.