Average Weather in September in Las Choapas Mexico
Daily high temperatures are around 90°F, rarely falling below 84°F or exceeding 96°F.
Daily low temperatures are around 78°F, rarely falling below 76°F or exceeding 81°F.
For reference, on May 14, the hottest day of the year, temperatures in Las Choapas typically range from 79°F to 95°F, while on January 30, the coldest day of the year, they range from 70°F to 82°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
Al Mukallā, Yemen (9,084 miles away); Chennai, India (10,272 miles); and Catayauan, Philippines (8,967 miles) are the far-away foreign places with temperatures most similar to Las Choapas (view comparison).
The month of September in Las Choapas experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 88% to 83%. The highest chance of overcast or mostly cloudy conditions is 89% on September 13.
The clearest day of the month is September 30, with clear, mostly clear, or partly cloudy conditions 17% of the time.
For reference, on September 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 89%, while on February 14, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 74%.
Cloud Cover Categories in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Las Choapas, the chance of a wet day over the course of September is gradually decreasing, starting the month at 79% and ending it at 75%.
For reference, the year's highest daily chance of a wet day is 81% on September 12, and its lowest chance is 15% on March 28.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Las Choapas is rapidly increasing, starting the month at 12.6 inches, when it rarely exceeds 19.1 inches or falls below 6.8 inches, and ending the month at 14.2 inches, when it rarely exceeds 22.0 inches or falls below 6.5 inches.
The highest average 31-day accumulation is 14.4 inches on September 25.
Average Monthly Rainfall in September
Over the course of September in Las Choapas, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 29 minutes, implying an average daily decrease of 60 seconds, and weekly decrease of 6 minutes, 59 seconds.
The shortest day of the month is September 30, with 11 hours, 59 minutes of daylight and the longest day is September 1, with 12 hours, 28 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Las Choapas is 7:02 AM on September 1 and the latest sunrise is 4 minutes later at 7:06 AM on September 30.
The latest sunset is 7:30 PM on September 1 and the earliest sunset is 24 minutes earlier at 7:05 PM on September 30.
Daylight saving time is observed in Las Choapas 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 6:42 AM and sets 13 hours, 12 minutes later, at 7:54 PM, while on December 21, the shortest day of the year, it rises at 6:42 AM and sets 11 hours, 4 minutes later, at 5:46 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in September
The chance that a given day will be muggy in Las Choapas is essentially constant during September, remaining around 100% throughout.
For reference, on June 5, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 13, the least muggy day of the year, there are muggy conditions 84% of the time.
Humidity Comfort Levels in September
The average hourly wind speed in Las Choapas is gradually increasing during September, increasing from 7.1 miles per hour to 8.0 miles per hour over the course of the month.
For reference, on January 6, the windiest day of the year, the daily average wind speed is 9.2 miles per hour, while on August 27, the calmest day of the year, the daily average wind speed is 7.0 miles per hour.
Average Wind Speed in September
Wind Direction in September
Las Choapas 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 Las Choapas is essentially constant during September, remaining around 84°F throughout.
The highest average surface water temperature during September is 84°F on September 12.
Average Water Temperature in September
Temperatures in Las Choapas 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 Las Choapas are very rapidly increasing during September, increasing by 950°F, from 7,466°F to 8,417°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Las Choapas is essentially constant during September, remaining within 0.1 kWh of 4.5 kWh throughout.
The lowest average daily incident shortwave solar energy during September is 4.4 kWh on September 16.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Las Choapas are 17.912 deg latitude, -94.096 deg longitude, and 39 ft elevation.
The topography within 2 miles of Las Choapas contains only modest variations in elevation, with a maximum elevation change of 223 feet and an average elevation above sea level of 59 feet. Within 10 miles contains only modest variations in elevation (548 feet). Within 50 miles contains significant variations in elevation (3,944 feet).
The area within 2 miles of Las Choapas is covered by cropland (81%) and artificial surfaces (12%), within 10 miles by cropland (81%) and trees (17%), and within 50 miles by cropland (66%) and water (22%).
This report illustrates the typical weather in Las Choapas 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 Las Choapas.
For each station, the records are corrected for the elevation difference between that station and Las Choapas 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 Las Choapas is computed as the weighted average of the individual contributions from each station, in addition to a contribution from the MERRA-2 reconstruction, corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Las Choapas.
The station weigths are proportional to the inverse of the distance between Las Choapas and a given station.
The weight assigned to the MERRA-2 value depends on the distance from Las Choapas to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 1%.
Time zones for aiports and weather stations are provided by AskGeo.com .