Fall Weather in Villa Unión Mexico
Daily high temperatures decrease by 6°F, from 89°F to 84°F, rarely falling below 80°F or exceeding 93°F.
Daily low temperatures decrease by 16°F, from 76°F to 60°F, rarely falling below 55°F or exceeding 79°F.
For reference, on June 27, the hottest day of the year, temperatures in Villa Unión typically range from 76°F to 91°F, while on January 23, the coldest day of the year, they range from 55°F to 80°F.
Average High and Low Temperature in the Fall in Villa Unión
The figure below shows you a compact characterization of the hourly average fall temperatures. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in the Fall in Villa Unión
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
Nova Iguaçu, Brazil (5,283 miles away); Behompy, Madagascar (10,551 miles); and Yujing, Taiwan (7,966 miles) are the far-away foreign places with temperatures most similar to Villa Unión (view comparison).
The fall in Villa Unión experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 88% to 41%. The lowest chance of overcast or mostly cloudy conditions is 35% on November 12.
The clearest day of the fall is November 12, with clear, mostly clear, or partly cloudy conditions 65% of the time.
For reference, on August 23, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 88%, while on June 2, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.
Cloud Cover Categories in the Fall in Villa Unión
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Villa Unión, the chance of a wet day over the course of the fall is very rapidly decreasing, starting the season at 68% and ending it at 7%.
For reference, the year's highest daily chance of a wet day is 70% on August 23, and its lowest chance is 1% on April 8.
Probability of Precipitation in the Fall in Villa Unión
To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during the fall in Villa Unión is very rapidly decreasing, starting the season at 7.7 inches, when it rarely exceeds 11.4 inches or falls below 4.3 inches, and ending the season at 0.9 inches, when it rarely exceeds 2.5 inches or falls below -0.0 inches.
Average Monthly Rainfall in the Fall in Villa Unión
Over the course of the fall in Villa Unión, the length of the day is rapidly decreasing. From the start to the end of the season, the length of the day decreases by 1 hour, 45 minutes, implying an average daily decrease of 1 minute, 10 seconds, and weekly decrease of 8 minutes, 12 seconds.
The shortest day of the fall is November 30, with 10 hours, 49 minutes of daylight and the longest day is September 1, with 12 hours, 35 minutes of daylight.
Hours of Daylight and Twilight in the Fall in Villa Unión
The latest sunrise of the fall in Villa Unión is 7:09 AM on October 30 and the earliest sunrise is 59 minutes earlier at 6:09 AM on October 31.
The latest sunset is 7:21 PM on September 1 and the earliest sunset is 2 hours, 4 minutes earlier at 5:18 PM on November 28.
Daylight saving time (DST) ends at 1:00 AM on October 31, 2021, shifting sunrise and sunset to be an hour earlier.
For reference, on June 21, the longest day of the year, the Sun rises at 6:19 AM and sets 13 hours, 34 minutes later, at 7:53 PM, while on December 21, the shortest day of the year, it rises at 6:41 AM and sets 10 hours, 43 minutes later, at 5:24 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in the Fall in Villa Unión
The figure below presents a compact representation of key lunar data for the fall of 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
Moon Rise, Set & Phases in the Fall in Villa Unión
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 chance that a given day will be muggy in Villa Unión is very rapidly decreasing during the fall, falling from 99% to 21% over the course of the season.
The highest chance of a muggy day during the fall is 100% on September 10.
For reference, on September 8, the muggiest day of the year, there are muggy conditions 100% of the time, while on March 23, the least muggy day of the year, there are muggy conditions 2% of the time.
Humidity Comfort Levels in the Fall in Villa Unión
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Villa Unión is essentially constant during the fall, remaining within 0.1 miles per hour of 5.1 miles per hour throughout.
For reference, on June 2, the windiest day of the year, the daily average wind speed is 6.4 miles per hour, while on August 6, the calmest day of the year, the daily average wind speed is 4.9 miles per hour.
The highest daily average wind speed during the fall is 5.2 miles per hour on September 8.
Average Wind Speed in the Fall in Villa Unión
The wind direction in Villa Unión during the fall is predominantly out of the west from September 1 to October 26 and the north from October 26 to November 30.
Wind Direction in the Fall in Villa Unión
Villa Unión 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 surface water temperature in Villa Unión is decreasing during the fall, falling by 7°F, from 86°F to 79°F, over the course of the season.
Average Water Temperature in the Fall in Villa Unión
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 Villa Unión 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 in the Fall in Villa Unión
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.
The average accumulated growing degree days in Villa Unión are very rapidly increasing during the fall, increasing by 2,484°F, from 5,969°F to 8,453°F, over the course of the season.
Growing Degree Days in the Fall in Villa Unión
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 in Villa Unión is essentially constant during the fall, remaining within 0.4 kWh of 4.6 kWh throughout.
The highest average daily incident shortwave solar energy during the fall is 5.0 kWh on October 23.
Average Daily Incident Shortwave Solar Energy in the Fall in Villa Unión
For the purposes of this report, the geographical coordinates of Villa Unión are 23.190 deg latitude, -106.219 deg longitude, and 69 ft elevation.
The topography within 2 miles of Villa Unión contains only modest variations in elevation, with a maximum elevation change of 148 feet and an average elevation above sea level of 47 feet. Within 10 miles contains only modest variations in elevation (2,293 feet). Within 50 miles contains large variations in elevation (9,203 feet).
The area within 2 miles of Villa Unión is covered by cropland (93%), within 10 miles by cropland (60%) and trees (25%), and within 50 miles by water (42%) and trees (41%).
This report illustrates the typical weather in Villa Unión, 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 is only a single weather station, General Rafael Buelna International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Villa Unión.
At a distance of 6 kilometers from Villa Unión, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Villa Unión according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
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.
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.