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Average Weather in San Miguel Coatlán Mexico

In San Miguel Coatlán, the wet season is overcast, the dry season is partly cloudy, and it is comfortable year round. Over the course of the year, the temperature typically varies from 46°F to 77°F and is rarely below 41°F or above 81°F.

Based on the tourism score, the best time of year to visit San Miguel Coatlán for warm-weather activities is from early March to mid May.

Climate Summary

comfortablewarmcomfortableJanFebMarAprMayJunJulAugSepOctNovDecNowNow74%74%6%6%clearovercastprecipitation: 6.6 inprecipitation: 6.6 in0.1 in0.1 inmuggy: 9%muggy: 9%0%0%drydrytourism score: 6.5tourism score: 6.53.83.8
Click on each chart for more information.

Temperature

The temperature in San Miguel Coatlán varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.

Average High and Low Temperature

Average High and Low Temperature in San Miguel CoatlánJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 573°FJan 573°FApr 2977°FApr 2977°F46°F46°F55°F55°FMar 2676°FMar 2676°FAug 2472°FAug 2472°FOct 572°FOct 572°F52°F52°F55°F55°F54°F54°FNowNow
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 San Miguel CoatlánJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoolcoolcomfortablewarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Adi Keyh, Eritrea (8,761 miles away) is the far-away foreign place with temperatures most similar to San Miguel Coatlán (view comparison).

Clouds

In San Miguel Coatlán, 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 San Miguel Coatlán begins around November 6 and lasts for 6.0 months, ending around May 6. On February 24, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 74% of the time, and overcast or mostly cloudy 26% of the time.

The cloudier part of the year begins around May 6 and lasts for 6.0 months, ending around November 6. On June 29, the cloudiest day of the year, the sky is overcast or mostly cloudy 94% of the time, and clear, mostly clear, or partly cloudy 6% of the time.

Cloud Cover Categories

Cloud Cover Categories in San Miguel CoatlánclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Feb 2474%Feb 2474%Jun 296%Jun 296%Nov 639%Nov 639%May 640%May 640%NowNowclearmostly clearmostly cloudyovercastpartly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

Precipitation

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

The wetter season lasts 4.7 months, from May 20 to October 11, with a greater than 29% chance of a given day being a wet day. The chance of a wet day peaks at 56% on September 12.

The drier season lasts 7.3 months, from October 11 to May 20. The smallest chance of a wet day is 1% on December 11.

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 56% on September 12.

Daily Chance of Precipitation

Daily Chance of Precipitation in San Miguel CoatlánwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Sep 1256%Sep 1256%Dec 111%Dec 111%May 2029%May 2029%Oct 1129%Oct 1129%NowNowrain
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. San Miguel Coatlán experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 6.9 months, from April 15 to November 12, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around June 25, with an average total accumulation of 6.6 inches.

The rainless period of the year lasts for 5.1 months, from November 12 to April 15. The least rain falls around December 17, with an average total accumulation of 0.1 inches.

Average Monthly Rainfall

Average Monthly Rainfall in San Miguel CoatlánrainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 inJun 256.6 inJun 256.6 inDec 170.1 inDec 170.1 inSep 86.1 inSep 86.1 inJul 314.3 inJul 314.3 inApr 150.5 inApr 150.5 inNov 120.5 inNov 120.5 inNowNow
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 San Miguel Coatlán varies over the course of the year. In 2021, the shortest day is December 21, with 11 hours, 10 minutes of daylight; the longest day is June 20, with 13 hours, 6 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in San Miguel CoatlánJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2013 hr, 6 minJun 2013 hr, 6 minJun 2012 hr, 7 minSep 2212 hr, 7 minSep 2211 hr, 10 minDec 2111 hr, 10 minDec 21nightnightdayNowNow
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 6:20 AM on April 3, and the latest sunrise is 1 hour, 3 minutes later at 7:23 AM on October 30. The earliest sunset is at 5:52 PM on November 21, and the latest sunset is 2 hours, 11 minutes later at 8:03 PM on July 6.

Daylight saving time (DST) is observed in San Miguel Coatlán during 2021, starting in the spring on April 4, lasting 6.8 months, and ending in the fall on October 31.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in San Miguel CoatlánJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMApr 36:20 AMApr 36:20 AM8:03 PMJul 68:03 PMJul 6Nov 215:52 PMNov 215:52 PM7:23 AMOct 307:23 AMOct 30Apr 4DSTApr 4DSTDSTOct 31DSTOct 31daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2021. 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.

Moon

The figure below presents a compact representation of key lunar data for 2021. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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 San Miguel Coatlán, 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, staying within 4% of 4% throughout.

Humidity Comfort Levels

Humidity Comfort Levels in San Miguel CoatlánJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 20%Feb 20%Jun 89%Jun 89%NowNowhumidhumidcomfortablecomfortabledrydrymuggymuggy
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 San Miguel Coatlán experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.8 months, from October 27 to April 21, with average wind speeds of more than 6.0 miles per hour. The windiest day of the year is January 13, with an average hourly wind speed of 7.0 miles per hour.

The calmer time of year lasts for 6.2 months, from April 21 to October 27. The calmest day of the year is September 18, with an average hourly wind speed of 4.9 miles per hour.

Average Wind Speed

Average Wind Speed in San Miguel CoatlánwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphJan 137.0 mphJan 137.0 mphSep 184.9 mphSep 184.9 mphOct 276.0 mphOct 276.0 mphApr 216.0 mphApr 216.0 mphNowNow
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 San Miguel Coatlán varies throughout the year.

The wind is most often from the south for 1.9 months, from April 21 to June 18, with a peak percentage of 35% on May 30. The wind is most often from the east for 3.0 months, from June 18 to September 18, with a peak percentage of 42% on July 23. The wind is most often from the north for 6.7 months, from September 18 to April 10, with a peak percentage of 55% on January 1.

Wind Direction

Wind Direction in San Miguel CoatlánNSENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

San Miguel Coatlán is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.8 months, from May 28 to September 20, with an average temperature above 85°F. The day of the year with the warmest water is August 5, with an average temperature of 86°F.

The time of year with cooler water lasts for 3.2 months, from December 26 to March 31, with an average temperature below 82°F. The day of the year with the coolest water is January 23, with an average temperature of 81°F.

Average Water Temperature

Average Water Temperature in San Miguel CoatlánwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec80°F80°F82°F82°F84°F84°F86°F86°F88°F88°FAug 586°FAug 586°F81°FJan 2381°FJan 23May 2885°FMay 2885°FSep 2085°FSep 2085°FDec 2682°FDec 2682°FMar 3182°FMar 3182°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Best Time of Year to Visit

To characterize how pleasant the weather is in San Miguel Coatlán throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit San Miguel Coatlán for general outdoor tourist activities is from early March to mid May, with a peak score in the second week of April.

Tourism Score

Tourism Score in San Miguel Coatlánbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.56.53.83.85.15.14.54.53.93.9NowNowprecipitationprecipitationcloudscloudstemperaturetemperature tourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit San Miguel Coatlán for hot-weather activities is from late March to mid May, with a peak score in the third week of April.

Beach/Pool Score

Beach/Pool Score in San Miguel Coatlánbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810102.92.91.21.22.32.31.71.71.31.3NowNowprecipitationprecipitationcloudscloudstemperaturetemperature beach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Growing Season

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in San Miguel Coatlán are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in San Miguel CoatlánJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 15100%Jan 1599%Dec 2899%Dec 28Jun 28100%Jun 28100%NowNowcoldcoolcomfortablewarmvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Growing Degree Days

Growing Degree Days in San Miguel CoatlánJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°F4,000°F4,000°F4,500°F4,500°FJan 1090°FJan 1090°FMar 20900°FMar 20900°FMay 191,800°FMay 191,800°FDec 314,712°FDec 314,712°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

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 2.1 months, from February 27 to April 29, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest day of the year is March 31, with an average of 7.1 kWh.

The darker period of the year lasts for 2.3 months, from August 6 to October 16, with an average daily incident shortwave energy per square meter below 5.1 kWh. The darkest day of the year is September 12, with an average of 4.6 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in San Miguel CoatlánbrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhMar 317.1 kWhMar 317.1 kWhSep 124.6 kWhSep 124.6 kWhAug 65.1 kWhAug 65.1 kWhNowNow
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 San Miguel Coatlán are 16.197 deg latitude, -96.695 deg longitude, and 6,152 ft elevation.

The topography within 2 miles of San Miguel Coatlán contains extreme variations in elevation, with a maximum elevation change of 3,917 feet and an average elevation above sea level of 6,752 feet. Within 10 miles also contains extreme variations in elevation (7,251 feet). Within 50 miles also contains extreme variations in elevation (12,211 feet).

The area within 2 miles of San Miguel Coatlán is covered by trees (75%) and shrubs (25%), within 10 miles by shrubs (48%) and trees (46%), and within 50 miles by trees (45%) and shrubs (21%).

Data Sources

This report illustrates the typical weather in San Miguel Coatlán, 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 San Miguel Coatlán.

For each station, the records are corrected for the elevation difference between that station and San Miguel Coatlán 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 San Miguel Coatlán is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between San Miguel Coatlán and a given station.

The stations contributing to this reconstruction are: Oaxaca - Xoxocotlán International Airport (81%, 89 kilometers, north) and Ixtepec Ox (19%, 173 kilometers, east).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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 airports 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.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.