Average Weather in September in San Pedro Cuitlapan Mexico
Daily high temperatures are around 82°F, rarely falling below 77°F or exceeding 87°F. The lowest daily average high temperature is 82°F on September 14.
Daily low temperatures are around 64°F, rarely falling below 60°F or exceeding 67°F. The highest daily average low temperature is 64°F on September 12.
For reference, on April 18, the hottest day of the year, temperatures in San Pedro Cuitlapan typically range from 62°F to 90°F, while on January 14, the coldest day of the year, they range from 56°F to 84°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 San Pedro Cuitlapan experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 90% throughout the month. The highest chance of overcast or mostly cloudy conditions is 92% on September 14.
The clearest day of the month is September 30, with clear, mostly clear, or partly cloudy conditions 11% of the time.
For reference, on June 29, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 93%, while on February 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.
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 San Pedro Cuitlapan, the chance of a wet day over the course of September is very rapidly decreasing, starting the month at 70% and ending it at 57%.
For reference, the year's highest daily chance of a wet day is 71% on September 4, and its lowest chance is 1% on December 8.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in San Pedro Cuitlapan is rapidly decreasing, starting the month at 8.2 inches, when it rarely exceeds 14.4 inches or falls below 3.6 inches, and ending the month at 6.4 inches, when it rarely exceeds 13.0 inches or falls below 2.3 inches.
The highest average 31-day accumulation is 8.3 inches on September 7.
Average Monthly Rainfall in September
Over the course of September in San Pedro Cuitlapan, 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, 35 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, 27 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in San Pedro Cuitlapan is 7:19 AM on September 1 and the latest sunrise is 4 minutes later at 7:23 AM on September 30.
The latest sunset is 7:45 PM on September 1 and the earliest sunset is 24 minutes earlier at 7:22 PM on September 30.
Daylight saving time is observed in San Pedro Cuitlapan during 2021, 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 7:00 AM and sets 13 hours, 9 minutes later, at 8:09 PM, while on December 21, the shortest day of the year, it rises at 6:57 AM and sets 11 hours, 7 minutes later, at 6:04 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in September
The figure below presents a compact representation of key lunar data for September 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 September
The chance that a given day will be muggy in San Pedro Cuitlapan is gradually decreasing during September, falling from 67% to 62% over the course of the month.
The highest chance of a muggy day during September is 68% on September 12.
For reference, on September 12, the muggiest day of the year, there are muggy conditions 68% of the time, while on January 26, the least muggy day of the year, there are muggy conditions 2% 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 San Pedro Cuitlapan is essentially constant during September, remaining around 4.3 miles per hour throughout.
For reference, on April 1, the windiest day of the year, the daily average wind speed is 6.5 miles per hour, while on August 14, the calmest day of the year, the daily average wind speed is 4.2 miles per hour.
Average Wind Speed in September
The hourly average wind direction in San Pedro Cuitlapan throughout September is predominantly from the south, with a peak proportion of 55% on September 10.
Wind Direction in September
San Pedro Cuitlapan 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 San Pedro Cuitlapan is essentially constant during September, remaining around 86°F throughout.
Average Water Temperature in September
Temperatures in San Pedro Cuitlapan 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 San Pedro Cuitlapan are rapidly increasing during September, increasing by 637°F, from 5,418°F to 6,055°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in San Pedro Cuitlapan is essentially constant during September, remaining within 0.1 kWh of 5.0 kWh throughout.
The lowest average daily incident shortwave solar energy during September is 4.9 kWh on September 14.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of San Pedro Cuitlapan are 16.973 deg latitude, -98.252 deg longitude, and 2,513 ft elevation.
The topography within 2 miles of San Pedro Cuitlapan contains large variations in elevation, with a maximum elevation change of 2,638 feet and an average elevation above sea level of 2,948 feet. Within 10 miles contains large variations in elevation (6,473 feet). Within 50 miles also contains extreme variations in elevation (11,047 feet).
The area within 2 miles of San Pedro Cuitlapan is covered by trees (53%) and cropland (38%), within 10 miles by trees (75%) and shrubs (14%), and within 50 miles by trees (51%) and cropland (30%).
This report illustrates the typical weather in San Pedro Cuitlapan, 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 Juan N. Álvarez International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of San Pedro Cuitlapan.
At a distance of 162 kilometers from San Pedro Cuitlapan, further than our threshold of 150 kilometers, this station is deemed insufficiently nearby to be relied upon as our primary source for temperature and dew point records. Consequently, the station records are blended with interpolated values from NASA's MERRA-2 satellite-era reanalysis , and both are corrected for elevation differences according to the International Standard Atmosphere .
The weight assigned to the MERRA-2 value depends on the distance from San Pedro Cuitlapan to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 19%, making the weight assigned to the weather station 81%.
Time zones for airports and weather stations are provided by AskGeo.com .