September Weather in Coatepec, Mexico

Last updated: April 22, 2025

September in Coatepec, Mexico showcases a climate characterized by warm temperatures and significant rainfall. With a maximum temperature peaking at 29°C (85°F) and an average of 21°C (69°F), the month offers a pleasant yet humid atmosphere, averaging 82% humidity. Rain is a prominent feature, as 314 mm (12.4 in) of precipitation falls over 26 days, creating a lush landscape. Visitors can expect to experience the vibrant greenery that emerges from this abundant moisture, making September a unique time to explore the natural beauty of Coatepec.

September Temperature in Coatepec

In September, Coatepec, Mexico, continues to embrace the warm embrace of late summer, with temperatures ranging from a mild 13°C (56°F) at night to a comfortable 29°C (85°F) during the day. The average temperature hovers around 21°C (69°F), reflecting a slight dip from the peak warmth of previous months while still maintaining a pleasant climate for outdoor activities. As the rainy season begins to wane, residents and visitors alike can expect refreshing afternoons perfect for exploring the lush surroundings, making September a delightful time to experience the vibrant culture and natural beauty of this charming town. The transition into autumn brings with it a hint of cooler averages, inviting opportunities to enjoy Coatepec's rich tapestry of flavors and sights.

September Weather in Coatepec: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Coatepec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec646771747471717169696764
Data source: Temperature data for Coatepec 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 Coatepec

September marks the peak of precipitation in Coatepec, Mexico, with a striking 314 mm (12.4 in) of rain falling over 26 days. This significant increase from the preceding months underscores the arrival of the wet season, which typically begins in May and intensifies through the summer. As August's rainfall starts to recede, September's downpours create a lush, vibrant landscape, making the region come alive with greenery. The 29% rise in precipitation from August to September reflects the region's climatic pattern, where the transition from dry to wet brings not only moisture but also an invigorating freshness to the atmosphere.

September Precipitation Trends in Coatepec

The chart displays monthly precipitation patterns in Coatepec, 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.
JanFebMarAprMayJunJulAugSepOctNovDec561336132277198254315120364
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Coatepec

In September, Coatepec, Mexico, experiences a notable increase in humidity, reaching 82%. This rise comes after a summer period characterized by lower humidity levels, especially in July at just 68%. As autumn unfolds, the trend shifts towards higher humidity, which continues into the coming months; October peaks at 91%, reflecting the region's transition into its wetter season. The fluctuation in humidity throughout the year highlights the distinct climatic patterns in Coatepec, where the lushness of nature thrives amid the seasonal changes. While September is relatively humid, it's a precursor to the even more saturated months ahead, setting the stage for the vibrant growth that defines the area.

September Average Humidity in Coatepec

This chart illustrates the average monthly humidity levels in Coatepec, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Coatepec

As September rolls in Coatepec, Mexico, residents and visitors alike should brace for a consistently high UV Index, which remains at 14—classified as extreme—throughout the month. This trend mirrors the preceding summer months, where the UV levels have peaked, demanding acute awareness for sun safety with a burn time of just 10 minutes. Notably, as the year transitions into October, the UV Index dips to 12, still signifying extreme exposure, but indicating a gradual reprieve. With such persistent intensity from January through September, understanding these patterns is vital for protecting skin health. For more detailed insights, check out the Coatepec UV Index.

Maximum UV Index Levels in Coatepec for September

The chart shows the monthly maximum UV Index (UVI) for Coatepec 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: Coatepec 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 Coatepec

September in Coatepec, Mexico, offers a delightful blend of warmth and sunlight, boasting 291 hours of sunshine. As summer transitions into autumn, the sun continues to shine brightly, though slightly less than the peak months of May and July, which recorded 332 and 329 hours, respectively. Following the vibrant highs of the summer, September gently descends from the sunny excess of those months but still maintains a generous offering of light. This month’s sunshine reflects the beautiful rhythm of Coatepec’s climate, where the golden rays linger warmly before the gradual approach of the cooler fall days in October and November. Overall, September's sunshine serves as a splendid reminder of the area's lush beauty and vibrant atmosphere, inviting visitors to bask in its mellow warmth.

Monthly Sunshine Duration in Coatepec: September Highlighted

The September sunshine duration represents the total number of hours Coatepec 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.
JanFebMarAprMayJunJulAugSepOctNovDec244h278h320h320h332h303h329h316h291h304h294h298h
Data source: Coatepec September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Coatepec During September

As summer gives way to autumn in Coatepec, Mexico, the likelihood of sunny weather takes a noticeable dip in September, falling to just 19%. This trend is part of a broader pattern, where the sunniest months tend to cluster in the early part of the year—February stands out with a striking 90% chance of sunshine, while the late months of the year, such as November and December, re-emerge as prime for sun seekers. Consequently, those looking to bask in the warmth should plan their visits earlier in the year, as September’s mild but cloudy outlook invites a mix of cool breezes rather than bright, sunny days.

Percentage of Sunny Days in September in Coatepec

The chart illustrates the percentage of sunny days in Coatepec 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 Coatepec experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec58%90%77%72%44%9%26%31%19%38%67%86%
Data source: Coatepec September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Coatepec in September

In Coatepec, Mexico, the rhythm of daylight throughout the year reveals a captivating trend. September, offering 12 hours of daylight, stands as a bridge between the sun-drenched peak of the summer months and the gradual retreat into shorter days. Following the bright thirteen-hour days of May through July, sunlight begins to wane slightly, as seen in the last stages of the summer with August's comforting 12 hours. This pattern highlights a steady march from the longer days of early spring into the more modest daylight of autumn. As the year progresses, daylight gently recedes, reverting back to eleven-hour days by October, but September’s balance between light and shadow makes it a particularly appealing time, as nature prepares for the transitions ahead.

Average Daylight Hours in Coatepec for September

The chart illustrates the variation in daylight duration in Coatepec throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 8m11h 31m12h 2m12h 34m13h13h 13m13h 6m12h 43m12h 12m11h 41m11h 14m11h
Data source: Coatepec daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Coatepec

As September arrives in Coatepec, Mexico, the gentle breeze of the season is marked by an average wind speed of 1.5 m/s (3 mph), continuing the trend of mild winds that have characterized the summer months. This slight decline in wind speed from previous months reflects a calming transition as the region shifts from the warmth of summer to the more temperate fall. Interestingly, September shares its wind speed with both June and August, indicating a consistent tranquility that envelops the town during this time. While the winds remain gentle, they carry the fresh scents of the coming season, inviting residents and visitors alike to savor the beauty of Coatepec during this serene month.

Average September Wind Speed in Coatepec

The chart displays monthly wind speed patterns in Coatepec, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.22.02.21.81.51.61.51.5 m/s1.71.91.9
Data source: Coatepec September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Coatepec Compares to Other Months

The weather in Coatepec 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 Coatepec and find detailed weather information for every month.

September and January present strikingly different weather patterns. In September, temperatures range from a cool minimum of 13°C (56°F) to a warm maximum of 29°C (85°F), with an average around 21°C (69°F). This month is characterized by high precipitation, totaling 314 mm (12.4 in) over 26 days, contributing to a humidity level of 82%. In contrast, January features cooler temperatures, with a minimum of 5°C (41°F) and a similar maximum of 30°C (86°F), but boasts a much drier climate, experiencing only 4 mm (0.2 in) of precipitation over just one day, while maintaining a slightly higher humidity of 84%. For a closer look at January's weather specifics, you can check Coatepec weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a cooler 13°C (56°F) at night to a warm 29°C (85°F) during the day, with an average of 21°C (69°F). This month is notably wet, experiencing substantial rainfall of 314 mm (12.4 in) over 26 days, and high humidity at 82%. In stark contrast, February brings milder nights with a minimum of 7°C (45°F) but can reach maximums of 31°C (88°F) and an average temperature of 20°C (68°F). Significantly drier than September, February sees only 6 mm (0.2 in) of precipitation across just 2 days, with humidity slightly lower at 78%. For more specifics on February weather, visit Coatepec weather in February.

In September, the weather tends to be milder with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (85°F), accompanied by high humidity at 82%. The month experiences significant rainfall, with approximately 314 mm (12.4 in) spread over 26 days, making it one of the wetter months. In contrast, March typically boasts warmer temperatures, with a minimum of 9°C (48°F) and peaks reaching 34°C (93°F), while maintaining a comfortable average of 22°C (71°F). Precipitation is minimal during March, totaling only 13 mm (0.5 in) over just 3 days, and humidity levels are slightly lower at 75%. For more details on the weather conditions in March, you can check Coatepec weather in March.

When comparing the weather in September and April, notable differences emerge. September typically features a cooler minimum temperature of around 13°C (56°F) and averages 21°C (69°F), but can reach highs of 29°C (85°F). It is also marked by significant rainfall, with an average precipitation of 314 mm (12.4 in) spread over 26 days, and humidity levels are relatively high at 82%. Conversely, April presents a warmer climate with a minimum temperature of 10°C (50°F) and an average of 23°C (74°F), peaking at 34°C (93°F). This month experiences much less rainfall, averaging only 36 mm (1.4 in) over 7 days, and lower humidity at 70%. For those interested in more details, check out Coatepec weather in April.

When comparing the weather in September to that of May, noticeable differences emerge. September typically sees a cooler temperature range, with a minimum of 13°C (56°F) and an average of 21°C (69°F), while May starts off slightly warmer, with minimum temperatures around 14°C (57°F) and an average of 23°C (74°F). Additionally, May experiences a much higher maximum temperature of 35°C (95°F), contrasting sharply with September's peak of 29°C (85°F).

Precipitation also varies significantly between the two months. September is notably wetter, averaging 314 mm (12.4 in) over 26 days, whereas May is less rainy, with only 131 mm (5.2 in) falling over 17 days. Humidity levels are fairly close, with September at 82% and May at 77%, but the higher rainfall in September contributes to a more humid atmosphere overall. For more specifics on May weather, feel free to check out Coatepec weather in May.

When comparing the weather in September and June, we see distinct differences. September experiences slightly cooler temperatures, with averages ranging from a minimum of 13°C (56°F) to a maximum of 29°C (85°F), while June is warmer, boasting a minimum of 14°C (57°F) and a maximum of 35°C (94°F). Both months are characterized by high humidity levels, but September is more humid at 82%, compared to June's 76%. Additionally, September receives more rainfall, with 314 mm (12.4 in) over 26 days, whereas June has 277 mm (10.9 in) over 24 days. For more specific details on June weather, visit Coatepec weather in June.

In comparing the weather between September and July, September tends to be slightly cooler, with average temperatures around 21°C (69°F) and a maximum of 29°C (85°F) compared to July's higher maximum of 32°C (91°F). Despite having similar minimum temperatures, September is characterized by significantly higher rainfall, receiving 314 mm (12.4 in) over 26 days, while July sees less precipitation at 198 mm (7.8 in) over 22 days. Additionally, September's humidity levels are higher at 82%, contributing to a muggy atmosphere, whereas July has a more comfortable humidity of 68%. For more detailed insights on July weather, you can check Coatepec weather in July.

In comparing the weather of September and August, both months share a similar minimum temperature of around 13°C, but August tends to be warmer overall, with average and maximum temperatures reaching 21°C and 32°C, respectively. September, on the other hand, sees a slight dip in the maximum temperature to 29°C. Precipitation is another notable difference; September receives significantly more rainfall, with 314 mm over 26 days compared to August's 254 mm over 25 days. Additionally, the humidity levels in September are higher at 82%, whereas August experiences a more comfortable 70%. For more details, you can refer to Coatepec weather in August.

September sees warmer temperatures with a minimum of 13°C (56°F) and a maximum of 29°C (85°F), while October experiences cooler evenings with a minimum of 9°C (49°F) but retains a similar average temperature of 20°C (69°F). Precipitation is significantly higher in September, totaling 314 mm (12.4 in) over 26 days, compared to October's 120 mm (4.7 in) over just 16 days. Additionally, October brings increased humidity at 91%, slightly above September's 82%. For a detailed overview of October conditions, you can check Coatepec weather in October.

In September, temperatures tend to be warmer, with an average of 21°C (69°F) and highs reaching up to 29°C (85°F). However, it is also the wettest month, with significant rainfall of 314 mm (12.4 in) spread over 26 days, resulting in high humidity levels of 82%. In contrast, November experiences cooler temperatures, with a minimum of 9°C (48°F) and an average of 19°C (67°F), while still allowing for a peak maximum temperature of 30°C (86°F). This month is markedly drier, receiving only 36 mm (1.4 in) of rain over just 5 days, albeit with slightly higher humidity at 89%. For more detailed insights, refer to Coatepec weather in November.

September typically experiences warmer temperatures, with daily averages around 21°C (69°F) and maximums reaching 29°C (85°F). In contrast, December sees cooler temperatures, especially at night when it can drop to a minimum of 5°C (41°F), although it still has occasional highs of 29°C (85°F). September is also characterized by significant rainfall, averaging 314 mm (12.4 in) over 26 days, while December is much drier, registering only 4 mm (0.1 in) and boasting an impressive lack of rainfall over the entire month. Humidity remains high in both months, with September slightly lower at 82% compared to December's 88%. For more detailed information, check out Coatepec weather in December.

Compare Coatepec's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Coatepec

September in Coatepec brings a notable shift in weather patterns, characterized by higher humidity and ample precipitation compared to other months. With an average temperature around 21°C (69°F), it feels refreshing despite the frequent rain showers on 26 days of the month. This combination of warmth and moisture creates a lush landscape, making it a vibrant time for nature. As the region transitions into the fall, the overall atmosphere remains more dynamic and invigorating. For an in-depth look at how September stands out in the annual climate, check out Coatepec Climate.