September Weather in Jalpan, Mexico

Last updated: April 22, 2025

September in Jalpan, Mexico showcases a climate that balances warmth and moisture, with an average temperature of 21°C (70°F). Daily highs can reach a maximum of 32°C (91°F), while evenings bring a refreshing drop to around 11°C (52°F). Rain is a frequent visitor this month, with 201 mm (7.9 in) of precipitation spread across 23 days, contributing to the town's lush landscape. Coupled with a high humidity level of 84%, the weather creates a vibrant yet challenging environment, perfect for those who appreciate the beauty of the rainy season.

September Temperature in Jalpan

In September, Jalpan, Mexico experiences a delightful transition as temperatures begin to dip slightly after the height of summer. With minimums around 11°C (52°F) and an average of 21°C (70°F), the weather remains comfortably warm while providing a refreshing break from the higher summer heat. Daytime highs reach up to 32°C (91°F), perfect for enjoying outdoor activities without feeling overwhelmed by the oppressive heat. Compared to the sweltering months of May and August, September's cooler evenings invite a cozy atmosphere, marking it as an ideal time for both relaxation and exploration in this captivating region.

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

The chart illustrates September temperature patterns in Jalpan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec576265707372717170666158
Data source: Temperature data for Jalpan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Jalpan

In September, Jalpan, Mexico, experiences a notable surge in precipitation, with an impressive 201 mm (7.9 in) of rain, marking it as the wettest month of the year. This increase is reflected in the number of rainy days, soaring to 23, as the region transitions into its wet season. Following the trend of the preceding months, September's rainfall significantly surpasses the earlier summer months of July and August, which saw 120 mm (4.7 in) and 118 mm (4.6 in), respectively. As the monsoon season peaks, the landscape transforms, nourished by the abundant moisture, underscoring the critical role September plays in replenishing the region's water reserves and fostering its verdant surroundings.

September Precipitation Trends in Jalpan

The chart displays monthly precipitation patterns in Jalpan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec25253542901731201182011735119
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jalpan

In September, Jalpan, Mexico, experiences a noticeable spike in humidity, registering at 84%. This marks a resurgence following the drier summer months of July and August, which saw the humidity dip to 72% and 74% respectively. As the region transitions from the heat of summer to the autumn months, September’s humidity serves as a precursor to the wetter conditions ahead in October, where levels soar to 92%. This pattern underscores a consistent trend of high humidity levels throughout the year, particularly in the latter months, with January and October highlighting the peak at an impressive 88% and 92%. The overall fluctuations indicate a climate rich in moisture, creating a lush environment even as temperatures gradually begin to cool.

September Average Humidity in Jalpan

This chart illustrates the average monthly humidity levels in Jalpan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Jalpan

In September, Jalpan continues to experience high levels of UV exposure, with a UV Index of 13, categorizing the risk as extreme. This trend of intense UV radiation underscores the significance of sun safety, as individuals are urged to limit their sun exposure to just 10 minutes to avoid the risk of burns. Following a summer of consistent extreme levels, with July and August also pegging at a UV Index of 14, it’s clear that strong sun protection remains vital throughout the early fall. As October approaches, there is a slight dip to a UV Index of 12, yet the need for vigilance remains critical. For more information on UV Index trends throughout the year, check out Jalpan UV Index.

Maximum UV Index Levels in Jalpan for September

The chart shows the monthly maximum UV Index (UVI) for Jalpan 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.
JanFebMarAprMayJunJulAugSepOctNovDec811131414141413131297
Data source: Jalpan 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 Jalpan

September in Jalpan, Mexico, brings a delightful blend of sunshine and warmth, accumulating 280 hours of sunshine. This marks a notable dip from the peak of 327 hours in May, yet it still offers plenty of bright days as the summer begins to wane. Following the sunny streak of July and August, September gracefully transitions into fall, with sunlight hours gradually decreasing. It's a reminder of the vibrant life that flourishes in Jalpan, even as the days begin to shorten. As autumn unfolds, the sunshine remains a cherished companion, ensuring that the spirit of summer lingers on just a bit longer.

Monthly Sunshine Duration in Jalpan: September Highlighted

The September sunshine duration represents the total number of hours Jalpan 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.
JanFebMarAprMayJunJulAugSepOctNovDec213h254h300h307h327h307h320h317h280h269h253h273h
Data source: Jalpan September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Jalpan During September

In Jalpan, Mexico, September sees a significant drop in the likelihood of sunny weather, with only a 13% chance of sunshine. This marks the tail-end of a trend where the summer months, particularly June and July, present some of the least favorable conditions for sun-seekers. After a gradual increase during the earlier months of the year, which peak in February with a 56% likelihood, the sunny probability then ebbs in the summer. As autumn approaches, October's chances improve slightly to 32%, suggesting a shift toward more favorable weather ahead. So, while September may not be the best month for sunny escapades, it's a transition point leading towards slightly brighter days.

Percentage of Sunny Days in September in Jalpan

The chart illustrates the percentage of sunny days in Jalpan 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 Jalpan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec36%56%51%44%37%13%18%25%13%32%33%55%
Data source: Jalpan September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Jalpan in September

As September arrives in Jalpan, Mexico, daylight begins a subtle transition, offering 12 hours of light each day. This marks a continuation of the extended daylight seen throughout the summer months of May, June, and July, when the sun graced the skies for up to 13 hours. Following the vibrant summer, daylight duration gradually tapers off, with October bringing a slight decrease to 11 hours. This rhythmic change in sunlight reflects the region's seasonal cycle, where longer days in the warmer months give way to the shorter, cozier daylight hours of fall and winter, embodying the beauty of nature's progression.

Average Daylight Hours in Jalpan for September

The chart illustrates the variation in daylight duration in Jalpan throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 59m11h 26m12h 2m12h 38m13h 9m13h 23m13h 15m12h 48m12h 13m11h 37m11h 6m10h 50m
Data source: Jalpan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Jalpan

As September unfolds in Jalpan, Mexico, the wind whispers softly, with an average speed dropping to 1.1 m/s (2 mph), making it the calmest month of the year. This gentle breeze contrasts sharply with the slight uptick observed from January through August, where averages steadily hovered around 1.2 to 1.5 m/s (3 mph). The transition into fall brings a more tranquil atmosphere, hinting at the calming changes of the season. As the year progresses towards October, the wind picks up just slightly again, echoing the patterns of earlier months but without the vigor of summer. September’s serene winds invite moments of reflection, providing a peaceful backdrop to the vibrant cultural tapestry of this enchanting town.

Average September Wind Speed in Jalpan

The chart displays monthly wind speed patterns in Jalpan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.31.41.51.51.41.21.21.31.1 m/s1.21.21.3
Data source: Jalpan September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Jalpan Compares to Other Months

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

In September, the weather is warm and humid, with temperatures ranging from a cool 11°C (52°F) at night to a high of 32°C (91°F) during the day, averaging around 21°C (70°F). The month is also characterized by significant rainfall, totaling 201 mm (7.9 in) over 23 days, resulting in an humidity level of 84%. In contrast, January experiences much cooler temperatures, with a minimum of 0°C (33°F) and an average of 14°C (58°F), while still reaching highs of 32°C (90°F). However, precipitation is notably less in January, with only 25 mm (1.0 in) falling over 5 days and humidity remaining slightly higher at 88%. For more details on January weather, you can check Jalpan weather in January.

September and February present contrasting weather profiles. In September, temperatures range from a mild 11°C (52°F) to a warm 32°C (91°F), with an average of 21°C (70°F). The month is characterized by high humidity at 84%, and significant rainfall, totaling 201 mm (7.9 in) over 23 days. In contrast, February experiences cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 34°C (94°F), averaging 16°C (62°F). Although February has less rainfall, accumulating only 25 mm (1.0 in) over just 7 days, the humidity remains high at 86%. For more detailed information, you can check Jalpan weather in February.

When comparing the weather in September and March, notable differences emerge. September typically features a wider temperature range, with minimums around 11°C (52°F) and maximums reaching 32°C (91°F), whereas March has cooler minimums at 3°C (38°F) but can peak at an impressive 36°C (97°F). Precipitation levels in September are significantly higher, totaling 201 mm (7.9 in) over 23 days, compared to March's lighter 35 mm (1.4 in) over just 7 days. Additionally, humidity remains fairly high in both months, hovering around 84% in September and 83% in March. For more detailed insights, check Jalpan weather in March.

September and April present distinct weather patterns, each with its own characteristics. September typically features a range of temperatures from a minimum of 11°C (52°F) to a maximum of 32°C (91°F), with an average temperature of 21°C (70°F). This month is also marked by significant precipitation, totaling 201 mm (7.9 in) over approximately 23 days, contributing to a high humidity level of 84%.

In contrast, April experiences slightly cooler temperatures, with a minimum of 8°C (46°F) and a maximum reaching up to a notable 36°C (98°F), while maintaining a similar average of 21°C (71°F). However, April is considerably drier, with only 42 mm (1.7 in) of rainfall over about 8 days, and a humidity level of 80%. For those interested in a more detailed exploration of April weather, you can find further information here: Jalpan weather in April.

September and May present contrasting weather patterns. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 32°C (91°F), with an average of 21°C (70°F). The month sees considerable rainfall, totaling 201 mm (7.9 in) over 23 days, combined with a high humidity level of 84%. In contrast, May boasts warmer temperatures, with a minimum of 11°C (52°F), an average of 23°C (73°F), and a peak of 37°C (98°F). Despite being warmer, May experiences less precipitation, totaling 90 mm (3.5 in) over 16 days, and slightly lower humidity at 82%. For more detailed insights, check out Jalpan weather in May.

In comparing the weather of September and June, September tends to be slightly cooler, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 32°C (91°F), while June features higher daytime temperatures, with a minimum of 14°C (57°F) and a maximum that can peak at 36°C (97°F). Rainfall is more pronounced in September, accumulating 201 mm (7.9 in) over 23 days, compared to June's 173 mm (6.8 in) recorded over 22 days. Additionally, September experiences higher humidity levels at 84%, while June's humidity is somewhat lower at 79%. For a more detailed look into June's climate, visit Jalpan weather in June.

When comparing the weather in September and July, we see notable differences in both temperature and precipitation. September offers a wider range of temperatures, with a minimum of 11°C (52°F) and a maximum of 32°C (91°F), averaging 21°C (70°F). It is also considerably wetter, with 201 mm (7.9 in) of rain spread over 23 days and an average humidity of 84%. In contrast, July maintains a slightly warmer average at 22°C (71°F) and a maximum of 32°C (90°F), but with significantly less precipitation at 120 mm (4.7 in) over 21 days, and lower humidity at 72%. This makes September feel quite humid and wet compared to the relatively drier July. For more information on July's weather specifically, you can visit Jalpan weather in July.

In comparing the weather of September and August, September brings slightly cooler temperatures with a minimum of 11°C (52°F) and an average of 21°C (70°F), compared to August's minimum of 14°C (58°F) and average of 22°C (72°F). Both months experience maximum temperatures around 32°C (90-91°F); however, September is significantly wetter, recording 201 mm (7.9 in) of precipitation over 23 days, whereas August sees only 118 mm (4.6 in) across 19 days. Humidity levels are also higher in September at 84%, compared to 74% in August, contributing to a more humid atmosphere during the former month. For more detailed insights about August weather, check out Jalpan weather in August.

In September, the weather tends to be warmer, with average temperatures around 21°C (70°F) and maximum highs reaching up to 32°C (91°F). It is also a notably wet month, experiencing 201 mm (7.9 in) of rainfall over about 23 days, accompanied by a humidity level of 84%. In contrast, October brings slightly cooler temperatures, with an average of 19°C (67°F) and a maximum of 30°C (87°F). While it remains humid at 92%, it experiences less precipitation at 173 mm (6.8 in) over 17 days. For more detailed information, you can check out Jalpan weather in October.

September and November showcase a notable shift in weather patterns. September experiences warmer temperatures, with averages around 21°C (70°F) and highs reaching up to 32°C (91°F), while November sees cooler conditions, with average temperatures of 16°C (62°F) and maximums of 30°C (87°F). Precipitation levels also differ significantly; September is much wetter, receiving 201 mm (7.9 in) of rain over 23 days, compared to November's relatively dry 51 mm (2.0 in) spread across just 9 days. Moreover, humidity remains high in both months, peaking at 91% in November, while September maintains a slightly lower humidity of 84%. For more specifics on November weather, you can check Jalpan weather in November.

In September, the weather is characterized by warmer temperatures, with a minimum of 11°C (52°F) and an average of 21°C (70°F), peaking at 32°C (91°F). This month experiences significant rainfall, with 201 mm (7.9 in) of precipitation spread across 23 days, accompanied by a high humidity level of 84%. In contrast, December brings much cooler weather, with temperatures dropping to a minimum of -1°C (30°F) and a comfortable average of 15°C (58°F), reaching a maximum of 29°C (84°F). Rainfall is minimal in December, amounting to only 19 mm (0.7 in) over just 5 days, while humidity slightly increases to 91%. For a closer look at December weather specifics, check out Jalpan weather in December.

Compare Jalpan's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Jalpan

September in Jalpan presents a unique blend of warmth and moisture, standing out from the drier months that precede it. With average temperatures lingering around 21°C (70°F) and a maximum of 32°C (91°F), the month feels both warm and inviting. However, it is the higher humidity levels of 84% and significant precipitation, with rain occurring on 23 days, that truly characterize this month. This transition towards a wetter climate not only enhances the lush surroundings but also marks the beginning of a refreshing change as the area prepares for the coming months. For a deeper dive into Jalpan's weather patterns throughout the year, visit Jalpan Climate.