September Weather in San Antonio Coyahuacan, Mexico

Last updated: April 22, 2025

September in San Antonio Coyahuacan, Mexico offers a vibrant blend of warm temperatures and substantial rainfall. With a maximum temperature reaching 31°C (87°F) and an average of 22°C (71°F), the days remain pleasantly warm, while nights cool down to a refreshing 15°C (59°F). However, prepare for moisture as the region experiences an impressive 301 mm (11.8 in) of precipitation over 27 days, contributing to a high humidity level of 82%. This combination of warmth and frequent showers enhances the lushness of the landscape, making September a unique and dynamic month to explore.

September Temperature in San Antonio Coyahuacan

In San Antonio Coyahuacan, Mexico, September brings a delightful blend of warmth as summer transitions into fall. The temperatures during this month typically range from a comfortable 15°C (59°F) at night to a daytime high of around 31°C (87°F), maintaining an average of 22°C (71°F). This pattern showcases a slight cooling from the peak summer months, while still offering plenty of sunshine for outdoor activities. The consistent warmth continues into October, hinting at a gradual cooling trend as the year progresses. Overall, September's mild temperatures create a welcoming environment, perfect for enjoying the vibrant culture and stunning landscapes of this charming locale.

September Weather in San Antonio Coyahuacan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Antonio Coyahuacan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec687174767673727171716968
Data source: Temperature data for San Antonio Coyahuacan generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in San Antonio Coyahuacan

September in San Antonio Coyahuacan is a significant month for precipitation, recording an impressive 301 mm (11.8 in) of rain over 27 days. This marks a peak in the rainy season, where cumulative rainfall escalates dramatically over the months. Following a gradual rise from May's 68 mm, the precipitation reaches its zenith, contrasting sharply with the dry months of January and February, which barely register any rainfall. The trend of increasing rainfall in the summer months culminates strikingly in September, setting the stage for a lush and vibrant landscape as the rainy season begins to wane. This month not only embodies the height of the wet season but also prepares the region for the drier spells that follow in the upcoming months.

September Precipitation Trends in San Antonio Coyahuacan

The chart displays monthly precipitation patterns in San Antonio Coyahuacan, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec6361368234199262301132226
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in San Antonio Coyahuacan

As September rolls in, the humidity in San Antonio Coyahuacan, Mexico remains notably high at 82%, mirroring the sultry levels of August. This peak marks the tail end of a gradual upward trend that began in the spring; with humidity levels climbing from 59% in March to 73% in May, the summer months see an increase that reaches its zenith just as autumn approaches. Although October sees a slight dip to 79%, the overall pattern reveals a clear seasonal shift, highlighting the warm and sticky embrace of late summer that makes September particularly memorable. With this humidity, residents and visitors alike can expect a tropical feel, perfect for enjoying the vibrant culture that thrives in the humid air.

September Average Humidity in San Antonio Coyahuacan

This chart illustrates the average monthly humidity levels in San Antonio Coyahuacan, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec65%61%59%62%73%78%79%82%82%79%72%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Antonio Coyahuacan

In September, residents and visitors of San Antonio Coyahuacan, Mexico, should prepare for a consistently high UV Index, recorded at 14, placing it squarely in the extreme exposure category. This trend, which began in March and has persisted through the summer months, highlights a significant need for sun protection, with a minimized burn time of just 10 minutes. As daylight hours remain plentiful, individuals should remain vigilant about their sun safety measures, especially while engaging in outdoor activities. This pattern of elevated UV levels extends into October, although a slight decrease to an Index of 12 is expected. To stay informed about the UV conditions throughout the year, check the full guide on the San Antonio Coyahuacan UV Index.

Maximum UV Index Levels in San Antonio Coyahuacan for September

The chart shows the monthly maximum UV Index (UVI) for San Antonio Coyahuacan in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141414141412109
Data source: San Antonio Coyahuacan September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in San Antonio Coyahuacan

September in San Antonio Coyahuacan, Mexico, marks a gentle transition in sunshine, with 256 hours of sunlight illuminating the month. While this is slightly less than the sun-drenched peak of 320 hours in March, it still resonates with the warmth of early autumn. Following a lively summer, where July basked in 296 hours of radiant light, September settles into a more moderate rhythm, setting the stage for the lush colors of fall. As the days grow shorter, the sun continues to play a vital role, supporting the vibrant atmosphere that characterizes this enchanting locale. This gradual decline in daylight reveals a trend of fluctuating brightness throughout the year, inviting both locals and visitors to savor the unique charm of Coyahuacan under the golden rays of September.

Monthly Sunshine Duration in San Antonio Coyahuacan: September Highlighted

The September sunshine duration represents the total number of hours San Antonio Coyahuacan experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec239h278h320h319h315h261h296h278h256h278h290h295h
Data source: San Antonio Coyahuacan September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Antonio Coyahuacan During September

In San Antonio Coyahuacan, September marks a significant dip in sunny weather, with only a 12% chance of sunshine. This decline follows a summer characterized by much lower probabilities of clear skies, particularly in June through August. Interestingly, the year begins on a promising note with February showcasing a high of 88%, but as we transition into the latter half, the likelihood of sun dramatically decreases, reaching its nadir in September. Looking beyond, October offers a modest improvement at 31%, signaling a gradual return to sunnier days as autumn approaches. Overall, if you’re hoping for bright skies in September, it may be wise to prepare for a more overcast experience.

Percentage of Sunny Days in September in San Antonio Coyahuacan

The chart illustrates the percentage of sunny days in San Antonio Coyahuacan throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often San Antonio Coyahuacan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%89%76%73%48%8%21%20%12%31%62%83%
Data source: San Antonio Coyahuacan September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Antonio Coyahuacan in September

In San Antonio Coyahuacan, Mexico, September marks a transition in daylight duration, offering 12 hours of light each day. As summer wanes, this month maintains the trend established in June, July, and August, where the days stretched to a generous 12 to 13 hours. Following September, daylight gradually diminishes into the autumn months, tapering down to 11 hours in October. This reflective pattern highlights the shift from longer summer days to the shorter, cozier days of fall, inviting residents to savor the vibrant hues of early autumn without worrying about the descending sun just yet.

Average Daylight Hours in San Antonio Coyahuacan for September

The chart illustrates the variation in daylight duration in San Antonio Coyahuacan throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 11m11h 33m12h 3m12h 32m12h 57m13h 9m13h 2m12h 40m12h 12m11h 42m11h 17m11h 4m
Data source: San Antonio Coyahuacan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in San Antonio Coyahuacan

As September unfolds in San Antonio Coyahuacan, the winds whisper at an average speed of 1.2 m/s (3 mph), marking a gentle breezy transition from the warmth of summer. This subtle shift reflects a broader trend throughout the year: while January through April see a gradual increase in wind speed, the summer months bring a dip, slowing to a steady lull. September's winds echo the calming tones of late summer paired with the anticipation of autumn's arrival, setting a tranquil scene amid the vibrant culture of the region. While the breezes are soft, they carry with them hints of the seasons to come, inviting both locals and visitors to savor the melodic rustle of leaves as the landscape gradually transforms.

Average September Wind Speed in San Antonio Coyahuacan

The chart displays monthly wind speed patterns in San Antonio Coyahuacan, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.91.92.31.81.21.31.31.2 m/s1.41.51.5
Data source: San Antonio Coyahuacan September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in San Antonio Coyahuacan Compares to Other Months

The weather in San Antonio Coyahuacan changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in San Antonio Coyahuacan and find detailed weather information for every month.

September and January present a stark contrast in weather characteristics. In September, temperatures range from a minimum of 15°C (59°F) to a maximum of 31°C (87°F), with an average of 22°C (71°F). The month is marked by significant rainfall, totaling 301 mm (11.8 in) over 27 days, coupled with high humidity levels of 82%. In contrast, January boasts cooler temperatures, with a minimum of 7°C (46°F) and an average of 20°C (68°F), reaching up to 31°C (89°F). The weather is relatively dry, with only 6 mm (0.2 in) of precipitation over just 1 day, and humidity is lower at 65%. For more detailed information, you can check San Antonio Coyahuacan weather in January.

In September, the weather is characterized by higher humidity and frequent rainfall, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 31°C (87°F). The month typically experiences 301 mm (11.8 in) of precipitation over 27 days, creating a lush and verdant environment, though it can feel quite muggy due to the 82% humidity. In contrast, February boasts milder conditions with a temperature range from a minimum of 10°C (50°F) to a maximum of 33°C (92°F). This month sees minimal rainfall, with just 3 mm (0.1 in) and no rainy days, along with lower humidity at 61%, making it a drier and more comfortable time of year. For more detailed insights, you can explore San Antonio Coyahuacan weather in February.

Comparing the weather in September and March reveals notable differences. In September, temperatures range from a minimum of 15°C (59°F) to a maximum of 31°C (87°F), with an average of 22°C (71°F). This month is characterized by high humidity at 82% and substantial rainfall, receiving about 301 mm (11.8 in) spread over 27 days. In contrast, March features slightly cooler temperatures, with a minimum of 13°C (55°F) and a maximum of 35°C (95°F), yielding an average temperature of 23°C (74°F). March is significantly drier, with only 6 mm (0.2 in) of precipitation occurring over just 1 day and a lower humidity level of 59%. For more detailed information about March weather, you can visit San Antonio Coyahuacan weather in March.

In comparing the weather from September to April, notable differences emerge. September typically experiences a temperate range where temperatures fluctuate from a minimum of 15°C (59°F) to a maximum of 31°C (87°F), alongside significant rainfall measuring 301 mm (11.8 in) over approximately 27 days, and high humidity at 82%. In contrast, April boasts warmer conditions, with temperatures ranging from a minimum of 14°C (57°F) to a scorching maximum of 36°C (97°F). Additionally, April is considerably drier, receiving only 13 mm (0.5 in) of precipitation over just 3 days, and it has lower humidity levels at 62%. This stark contrast highlights April as a much drier and hotter month compared to the humid and rainy September. For more detailed information, visit San Antonio Coyahuacan weather in April.

In comparing the weather between September and May, September exhibits a wider range of temperatures, with averages peaking at 31°C (87°F) compared to May's slightly higher maximum of 36°C (97°F). Despite the warmer peak, May features a more temperate average temperature of 25°C (76°F), making it feel more pleasant overall. Humidity levels are notably higher in September at 82%, compared to May's 73%, which can make the former feel more oppressive. Additionally, September experiences significantly more rainfall, with 301 mm (11.8 in) over 27 days, in stark contrast to May's 68 mm (2.7 in) spread over just 13 days. For further details about May weather, you can check San Antonio Coyahuacan weather in May.

When comparing the weather in September and June, we find that both months are characterized by warm temperatures, but with some notable differences. September typically experiences slightly cooler conditions, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 31°C (87°F), whereas June sees temperatures starting from 16°C (61°F) and peaking at 33°C (92°F). Additionally, September is marked by higher precipitation, averaging 301 mm (11.8 in) over 27 rainy days, compared to June’s 234 mm (9.2 in) over 24 days. Humidity levels are also a bit higher in September at 82%, while June maintains a humidity of 78%. For a more detailed look at weather specifics during June, you can visit San Antonio Coyahuacan weather in June.

When comparing the weather in September and July, we find some intriguing similarities and notable differences. Both months feature similar average temperatures, with July averaging around 22°C (72°F) and September remaining at the same average. However, September tends to be slightly warmer at its maximum temperature of 31°C (87°F) compared to July's peak of 31°C (89°F), which highlights that July can still get a bit warmer even with a comparable average.

Precipitation is significantly higher in September, with 301 mm (11.8 in) falling over 27 days, while July experiences only 199 mm (7.8 in) across 24 days. The humidity level also varies, being a bit higher in September at 82%, compared to 79% in July, resulting in a more humid feel during the former. For a closer look at July's weather patterns, you can check San Antonio Coyahuacan weather in July.

In comparing the weather of September and August, both months exhibit similar temperature ranges, with September experiencing a slightly higher maximum temperature of 31°C (87°F) compared to August's maximum of 30°C (87°F). The average temperatures remain nearly identical, hovering around 22°C (72°F) in both months. However, September is characterized by increased rainfall, receiving 301 mm (11.8 in) over 27 days, while August sees less precipitation at 262 mm (10.3 in) across 28 days. Despite similar humidity levels of 82%, the greater rainfall in September contributes to a noticeably wetter atmospheric condition. For a more detailed look at August weather, visit San Antonio Coyahuacan weather in August.

September and October share similar average temperatures, around 22°C (71°F), but the overall weather experience differs notably. In September, temperatures can range from a minimum of 15°C (59°F) to a maximum of 31°C (87°F), alongside significant rainfall of 301 mm (11.8 in) over 27 days, contributing to a high humidity of 82%. In contrast, October sees a slight decrease in minimum temperature to 12°C (54°F) while maintaining the same maximum temperature of 31°C (87°F). Precipitation significantly drops to 132 mm (5.2 in) over 17 days, resulting in lower humidity levels at 79%. This transition marks October as a drier, albeit still warm, month. For more detailed insights on the weather in October, you can visit San Antonio Coyahuacan weather in October.

In September, the weather is characterized by warmer temperatures and significantly higher humidity, with minimums around 15°C (59°F) and maximums reaching up to 31°C (87°F). This month experiences frequent rainfall, averaging 301 mm (11.8 in) over 27 days, resulting in a humid environment with an average humidity of 82%. In contrast, November brings a noticeable shift, with cooler minimum temperatures of 11°C (51°F) and very little precipitation, totaling just 22 mm (0.9 in) over only 4 days. Though it retains a warm maximum temperature of 32°C (89°F), the humidity drops to 72%, making for a much drier and more comfortable climate overall. For more detailed insights, check out San Antonio Coyahuacan weather in November.

September weather is characterized by warmer temperatures, with a minimum of 15°C (59°F) and an average of 22°C (71°F), reaching up to 31°C (87°F). This month also sees significant rainfall, with 301 mm (11.8 in) over 27 days and an average humidity of 82%. In contrast, December offers a much cooler climate, featuring a minimum of 6°C (43°F) and an average of 20°C (68°F), yet it can still peak at 31°C (87°F). Rainfall is virtually nonexistent, with only 6 mm (0.2 in) of precipitation and no rainy days, resulting in lower humidity at 70%. For a detailed comparison of December weather in San Antonio Coyahuacan, you can visit San Antonio Coyahuacan weather in December.

Compare San Antonio Coyahuacan's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in San Antonio Coyahuacan

As September unfolds in San Antonio Coyahuacan, the weather takes on a unique character, blending warmth with frequent rainfall. Unlike the drier months, this time features a lively mix of high humidity and persistent precipitation, resulting in a lush and vibrant landscape. The temperatures remain moderate, making outdoor activities enjoyable, albeit with the occasional shower. Overall, September sets itself apart with its tropical ambiance, inviting residents and visitors alike to experience the rich natural beauty of this season. For a deeper dive into weather trends throughout the year, check out San Antonio Coyahuacan Climate.