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Average Weather in Heroica Matamoros Mexico

In Heroica Matamoros, the temperature typically varies from 52°F to 94°F over the course of the year, and is rarely below 39°F or above 97°F.

The hot season lasts for 4.0 months, from May 22 to September 23, with an average daily high temperature above 89°F. The hottest day of the year is August 5, with an average high of 94°F and low of 77°F.

The cool season lasts for 2.6 months, from December 4 to February 20, with an average daily high temperature below 75°F. The coldest day of the year is January 5, with an average low of 52°F and high of 70°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature with percentile bands, 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

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDeccoldcoldcoolcoolcomfortablecomfortablewarmwarmhothot
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.

Sun

The length of the day in Heroica Matamoros varies over the course of the year. In 2017, the shortest day is December 21, with 10 hours, 31 minutes of daylight; the longest day is June 21, with 13 hours, 46 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 6:37 AM on June 9, and the latest sunrise is 1 hour, 4 minutes later at 7:42 AM on March 12. The earliest sunset is at 5:38 PM on November 29, and the latest sunset is 2 hours, 48 minutes later at 8:25 PM on July 1.

Daylight saving time (DST) is observed in Heroica Matamoros during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.

Sunrise & Sunset with Twilight and Daylight Saving Time

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.

Clouds

In Heroica Matamoros, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Heroica Matamoros begins around January 30 and lasts for 4.9 months, ending around June 26. On June 3, 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 June 26 and lasts for 7.1 months, ending around January 30. On August 1, the cloudiest day of the year, the sky is overcast or mostly cloudy 60% of the time, and clear, mostly clear, or partly cloudy 40% of the time.

Cloud Cover

clearerclearercloudiercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 160%Aug 160%Jun 326%Jun 326%Jan 3043%Jan 3043%Jun 2643%Jun 2643%overcastovercastmostly cloudymostly cloudymostly clearmostly clearclearclear
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 Heroica Matamoros varies significantly throughout the year.

The wetter season lasts 3.7 months, from June 20 to October 12, with a greater than 22% chance of a given day being a wet day. The chance of a wet day peaks at 38% on September 14.

The drier season lasts 8.3 months, from October 12 to June 20. The smallest chance of a wet day is 7% on February 21.

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 38% on September 14.

Daily Chance of Precipitation

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 in the year. Heroica Matamoros experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Heroica Matamoros. The most rain falls during the 31 days centered around September 16, with an average total accumulation of 4.2 inches.

The least rain falls around December 21, with and average total accumulation of 0.8 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.

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.

Heroica Matamoros experiences very significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 8.4 months, from March 14 to November 26, during which time the comfort level is muggy, oppressive, or miserable at least 36% of the time. The muggiest day of the year is July 24, with muggy conditions 100% of the time.

The least muggy day of the year is January 22, with muggy conditions 15% of the time.

Humidity Comfort Levels

muggymuggy0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 2215%Jan 2215%100%Jul 24100%Jul 24Mar 1436%Mar 1436%Nov 2637%Nov 2637%miserablemiserableoppressiveoppressivemuggymuggycomfortablecomfortabledrydry
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 Heroica Matamoros experiences mildly seasonal variation over the course of the year.

The windier part of the year lasts for 9.1 months, from October 30 to August 1, with average wind speeds of more than 6.0 miles per hour. The windiest day of the year is April 8, with an average hourly wind speed of 7.0 miles per hour.

The calmer time of year lasts for 2.9 months, from August 1 to October 30. The calmest day of the year is September 7, with an average hourly wind speed of 5.0 miles per hour.

Average Wind Speed

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 Heroica Matamoros varies throughout the year.

The wind is most often from the south for 7.9 months, from January 7 to September 3 and for 2.7 months, from October 7 to December 29, with a peak percentage of 76% on July 17. The wind is most often from the east for 1.1 months, from September 3 to October 7, with a peak percentage of 46% on September 8. The wind is most often from the north for 1.3 weeks, from December 29 to January 7, with a peak percentage of 40% on December 31.

Wind Direction

SSEESS0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecsouthsoutheasteastnorthnorthwestwest
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).

Water Temperature

Heroica Matamoros 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 4.4 months, from June 4 to October 16, with an average temperature above 80°F. The day of the year with the warmest water is September 7, with an average temperature of 84°F.

The time of year with cooler water lasts for 3.3 months, from December 24 to April 4, with an average temperature below 70°F. The day of the year with the coolest water is February 18, with an average temperature of 66°F.

Average Water Temperature

The daily average water temperature (purple line) with percentile bands, 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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 2.7 months, from April 10 to July 1, with an average daily incident shortwave energy per square meter above 6.3 kWh. The brightest day of the year is June 3, with an average of 7.1 kWh.

The darker period of the year lasts for 2.6 months, from November 14 to February 2, with an average daily incident shortwave energy per square meter below 4.2 kWh. The darkest day of the year is December 31, with an average of 3.4 kWh.

Average Daily Incident Shortwave Solar Energy

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 Heroica Matamoros are 25.880 deg latitude, -97.504 deg longitude, and 36 ft elevation.

The topography within 2 miles of Heroica Matamoros is essentially flat, with a maximum elevation change of 59 feet, and an average elevation above sea level of 38 feet. Within 10 miles is also essentially flat (75 feet). Within 50 miles contains only modest variations in elevation (295 feet).

The area within 2 miles of Heroica Matamoros is covered by artificial surfaces (79%) and grassland (15%), within 10 miles by artificial surfaces (38%) and cropland (32%), and within 50 miles by cropland (40%) and water (37%).

Data Sources

This report illustrates the typical weather in Heroica Matamoros, 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 Heroica Matamoros.

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

The stations contributing to this reconstruction are: Brownsville-South Padre Island International Airport (91%, 9 kilometers, northeast) and Rio Grande Valley International Airport (9%, 42 kilometers, north).

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 .