Average Weather in September in Pórticos de San Antonio Mexico
Daily high temperatures decrease by 2°F, from 75°F to 74°F, rarely falling below 67°F or exceeding 83°F.
Daily low temperatures decrease by 3°F, from 63°F to 60°F, rarely falling below 55°F or exceeding 68°F.
For reference, on August 26, the hottest day of the year, temperatures in Pórticos de San Antonio typically range from 63°F to 76°F, while on December 27, the coldest day of the year, they range from 47°F to 64°F.
Average High and Low Temperature in September
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. 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 September
The month of September in Pórticos de San Antonio experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 12% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 10% on September 10.
The clearest day of the month is September 10, with clear, mostly clear, or partly cloudy conditions 90% of the time.
For reference, on February 22, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 44%, while on September 10, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 90%.
Cloud Cover Categories in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Pórticos de San Antonio, the chance of a wet day over the course of September is essentially constant, remaining around 2% throughout.
For reference, the year's highest daily chance of a wet day is 19% on February 22, and its lowest chance is 0% on June 27.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Pórticos de San Antonio is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.9 inches or falling below -0.0 inches.
Average Monthly Rainfall in September
Over the course of September in Pórticos de San Antonio, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 57 minutes, implying an average daily decrease of 1 minute, 58 seconds, and weekly decrease of 13 minutes, 43 seconds.
The shortest day of the month is September 30, with 11 hours, 52 minutes of daylight and the longest day is September 1, with 12 hours, 49 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Pórticos de San Antonio is 6:23 AM on September 1 and the latest sunrise is 18 minutes later at 6:41 AM on September 30.
The latest sunset is 7:12 PM on September 1 and the earliest sunset is 38 minutes earlier at 6:33 PM on September 30.
Daylight saving time is observed in Pórticos de San Antonio during 2018, but it neither starts nor ends during September, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:41 AM and sets 14 hours, 17 minutes later, at 7:58 PM, while on December 21, the shortest day of the year, it rises at 6:45 AM and sets 10 hours, 1 minute later, at 4:46 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Pórticos de San Antonio is rapidly decreasing during September, falling from 20% to 7% over the course of the month.
For reference, on August 24, the muggiest day of the year, there are muggy conditions 22% of the time, while on November 29, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in September
The average hourly wind speed in Pórticos de San Antonio is essentially constant during September, remaining within 0.1 miles per hour of 6.0 miles per hour throughout.
For reference, on December 30, the windiest day of the year, the daily average wind speed is 8.3 miles per hour, while on August 23, the calmest day of the year, the daily average wind speed is 5.9 miles per hour.
The lowest daily average wind speed during September is 5.9 miles per hour on September 9.
Average Wind Speed in September
Wind Direction in September
Pórticos de San Antonio 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 Pórticos de San Antonio is essentially constant during September, remaining within 1°F of 68°F throughout.
Average Water Temperature in September
Temperatures in Pórticos de San Antonio 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 September
The average accumulated growing degree days in Pórticos de San Antonio are rapidly increasing during September, increasing by 500°F, from 2,635°F to 3,136°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Pórticos de San Antonio is decreasing during September, falling by 1.1 kWh, from 7.0 kWh to 5.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Pórticos de San Antonio are 32.443 deg latitude, -117.034 deg longitude, and 751 ft elevation.
The topography within 2 miles of Pórticos de San Antonio contains very significant variations in elevation, with a maximum elevation change of 843 feet and an average elevation above sea level of 775 feet. Within 10 miles contains very significant variations in elevation (2,264 feet). Within 50 miles contains large variations in elevation (6,483 feet).
The area within 2 miles of Pórticos de San Antonio is covered by grassland (68%) and artificial surfaces (32%), within 10 miles by artificial surfaces (32%) and water (27%), and within 50 miles by water (49%) and shrubs (33%).
This report illustrates the typical weather in Pórticos de San Antonio year round, 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 Pórticos de San Antonio.
For each station, the records are corrected for the elevation difference between that station and Pórticos de San Antonio 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 Pórticos de San Antonio is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Pórticos de San Antonio and a given station.
The stations contributing to this reconstruction are: General Abelardo L. Rodríguez International Airport (71%, 13 kilometers, northeast) and Ream Field (29%, 16 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .