Average Weather in September in Santa María Chimalapa Mexico
Daily high temperatures are around 88°F, rarely falling below 84°F or exceeding 92°F.
Daily low temperatures are around 74°F, rarely falling below 71°F or exceeding 77°F.
For reference, on May 10, the hottest day of the year, temperatures in Santa María Chimalapa typically range from 76°F to 95°F, while on January 17, the coldest day of the year, they range from 68°F to 81°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 Santa María Chimalapa experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 92% to 87%. The highest chance of overcast or mostly cloudy conditions is 93% on September 13.
The clearest day of the month is September 30, with clear, mostly clear, or partly cloudy conditions 13% of the time.
For reference, on September 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 93%, while on February 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 75%.
Cloud Cover Categories in September
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 Santa María Chimalapa, the chance of a wet day over the course of September is very rapidly decreasing, starting the month at 72% and ending it at 62%.
For reference, the year's highest daily chance of a wet day is 73% on September 13, and its lowest chance is 7% on March 28.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Santa María Chimalapa is rapidly decreasing, starting the month at 9.6 inches, when it rarely exceeds 15.7 inches or falls below 4.1 inches, and ending the month at 7.9 inches, when it rarely exceeds 12.6 inches or falls below 3.4 inches.
The highest average 31-day accumulation is 9.8 inches on September 9.
Average Monthly Rainfall in September
Over the course of September in Santa María Chimalapa, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 27 minutes, implying an average daily decrease of 56 seconds, and weekly decrease of 6 minutes, 33 seconds.
The shortest day of the month is September 30, with 12 hours, 0 minutes of daylight and the longest day is September 1, with 12 hours, 27 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Santa María Chimalapa is 7:05 AM on September 1 and the latest sunrise is 4 minutes later at 7:08 AM on September 30.
The latest sunset is 7:31 PM on September 1 and the earliest sunset is 24 minutes earlier at 7:08 PM on September 30.
Daylight saving time is observed in Santa María Chimalapa 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 6:46 AM and sets 13 hours, 8 minutes later, at 7:54 PM, while on December 21, the shortest day of the year, it rises at 6:43 AM and sets 11 hours, 7 minutes later, at 5:50 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in September
The chance that a given day will be muggy in Santa María Chimalapa is essentially constant during September, remaining within 0% of 100% throughout.
For reference, on July 3, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 18, the least muggy day of the year, there are muggy conditions 66% of the time.
Humidity Comfort Levels in September
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Santa María Chimalapa is increasing during September, increasing from 7.6 miles per hour to 9.2 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 12.3 miles per hour, while on June 21, the calmest day of the year, the daily average wind speed is 7.2 miles per hour.
Average Wind Speed in September
Wind Direction in September
Santa María Chimalapa 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 Santa María Chimalapa is essentially constant during September, remaining within 1°F of 85°F throughout.
Average Water Temperature in September
Temperatures in Santa María Chimalapa 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 Santa María Chimalapa are rapidly increasing during September, increasing by 864°F, from 7,013°F to 7,877°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Santa María Chimalapa 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 13.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Santa María Chimalapa are 16.906 deg latitude, -94.683 deg longitude, and 735 ft elevation.
The topography within 2 miles of Santa María Chimalapa contains significant variations in elevation, with a maximum elevation change of 758 feet and an average elevation above sea level of 713 feet. Within 10 miles contains significant variations in elevation (3,734 feet). Within 50 miles also contains extreme variations in elevation (7,490 feet).
The area within 2 miles of Santa María Chimalapa is covered by cropland (66%) and trees (34%), within 10 miles by trees (93%), and within 50 miles by cropland (52%) and trees (43%).
This report illustrates the typical weather in Santa María Chimalapa 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 Santa María Chimalapa.
For each station, the records are corrected for the elevation difference between that station and Santa María Chimalapa 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 Santa María Chimalapa is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Santa María Chimalapa and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .