September Weather in Jalapa, Mexico

Last updated: April 22, 2025

September in Jalapa, Mexico showcases a dynamic climate characterized by warm temperatures and frequent rainfall. With a maximum reaching 36°C (97°F) and an average of 26°C (79°F), the month's weather offers a mix of sultry days and cooler evening breezes. Despite an inviting atmosphere, residents and visitors can expect significant rainfall, totaling 349 mm (13.7 in) over approximately 27 days, contributing to the notably high humidity of 82%. This blend of heat and moisture fosters a lush landscape, enhancing the region's vibrant flora while inviting those who embrace the wet season to experience Jalapa's unique charm.

September Temperature in Jalapa

In September, Jalapa, Mexico experiences consistently warm temperatures that hint at the tail end of its summer season. With a minimum of 21°C (70°F) and a maximum of 36°C (97°F), the city remains comfortably warm for outdoor activities and exploration. The average temperature hovers around 26°C (79°F), mirroring the patterns seen in the previous months. As the rainy season progresses, occasional showers may provide a refreshing break from the warmth, but the overall trend shows that September offers a delightful climate, ideal for soaking in the vibrant culture and lush landscapes of Jalapa.

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

The chart illustrates September temperature patterns in Jalapa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec777779808279807979787876
Data source: Temperature data for Jalapa 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 Jalapa

September in Jalapa, Mexico, is characterized by a peak in rainfall, showcasing an impressive 349 mm (13.7 in) of precipitation over 27 days. This significant downpour marks a notable increase compared to the preceding months, particularly following August’s already substantial 277 mm (10.9 in). As the summer transitions into autumn, the region experiences a dramatic surge in wet weather, with the daily rhythm of rain becoming a defining feature of daily life. This trend indicates that September is not just a continuation of the rainy season but rather its climax, setting the stage for October's slightly reduced but still ample 274 mm (10.8 in). The consistent increase in precipitation from May through September suggests a robust monsoon pattern that sustains the area well into the fall.

September Precipitation Trends in Jalapa

The chart displays monthly precipitation patterns in Jalapa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4113342731922773492744738
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Jalapa

As summer transitions into fall, September in Jalapa, Mexico, experiences a peak humidity level of 82%, mirroring the latter part of the rainy season. This month is characterized by a high moisture content in the air, continuing the trend established in August. Observing the year's journey, humidity levels rise sharply from a comfortable 59% in March to an oppressive 82% by September, reflecting the transition from drier, cooler conditions to the lushness brought on by frequent rains. As October approaches, humidity begins to taper slightly to 79%, hinting at the gradual shift towards dryer months ahead, while still retaining a sense of the tropical climate that defines Jalapa.

September Average Humidity in Jalapa

This chart illustrates the average monthly humidity levels in Jalapa, 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 Jalapa

September in Jalapa, Mexico, continues the trend of extreme UV exposure, maintaining an impressive UV Index of 13. This consistent level, prevalent since May, signals that outdoor enthusiasts should exercise caution, as the burn time remains a brisk 10 minutes. With the UV Index beginning to dip only slightly in the following months, individuals are advised to stay shielded and protected during these sun-drenched days. For detailed insights on UV levels throughout the year, visit Jalapa UV Index.

Maximum UV Index Levels in Jalapa for September

The chart shows the monthly maximum UV Index (UVI) for Jalapa 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.
JanFebMarAprMayJunJulAugSepOctNovDec911131314141313131198
Data source: Jalapa 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 Jalapa

As summer winds down, September in Jalapa, Mexico continues to bask in a warm embrace of sunshine, offering 264 hours of bright daylight. This month marks a subtle transition, with sunlight slightly diminishing from the summer peak in May at 329 hours and gradually trailing off towards the cooler months. The pattern showcases a consistent luminosity during the spring and summer, while autumn begins to hint at shorter days ahead. Despite the decrease, September remains a vibrant month, holding on to that joyful summer warmth, making it a delightful time to enjoy the city's natural beauty and cultural richness. As October approaches, the average sunlight hours stabilize again, yet it's the enduring glow of September that keeps the spirit of summer alive just a little longer.

Monthly Sunshine Duration in Jalapa: September Highlighted

The September sunshine duration represents the total number of hours Jalapa 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.
JanFebMarAprMayJunJulAugSepOctNovDec244h282h322h321h329h278h311h282h264h278h295h298h
Data source: Jalapa September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Jalapa During September

As September rolls into Jalapa, Mexico, the chances of basking in sunny weather dip significantly, with only a 9% likelihood of clear skies. This marks the tail end of the rainy season, where earlier months, such as February and March with 85% and 75% chances respectively, boast far more sunshine. Following the bright days of spring, the summer months plummet, with June through August featuring only 12%, 21%, and 14% chances of sun. As the region transitions into October, a gradual recovery begins with a 32% likelihood of sunshine, hinting at the promise of brighter days ahead. If you're planning a visit in September, good luck with those umbrellas!

Percentage of Sunny Days in September in Jalapa

The chart illustrates the percentage of sunny days in Jalapa 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 Jalapa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec59%85%75%74%51%12%21%14%9%32%65%86%
Data source: Jalapa September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Jalapa in September

In Jalapa, Mexico, the rhythm of daylight unfolds beautifully throughout the year. As we transition into September, the city enjoys an abundant 12 hours of daylight, a continuation of the trend established in the late spring and summer months. Following a slight peak in June with 13 hours, the daylight gradually tapers off, settling back to a consistent 12-hour pattern from March through September. This moderate daylight duration reflects the region's temperate climate and offers plenty of opportunities for outdoor exploration before the days shorten again in October, dropping to 11 hours. The gradual shifts in daylight create a vibrant backdrop for the changing seasons, encouraging both locals and visitors to embrace the natural beauty of this lively city.

Average Daylight Hours in Jalapa for September

The chart illustrates the variation in daylight duration in Jalapa throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 14m11h 35m12h 2m12h 31m12h 54m13h 5m12h 59m12h 38m12h 11m11h 43m11h 20m11h 8m
Data source: Jalapa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Jalapa

In Jalapa, Mexico, the September breeze carries a gentle whisper, with an average wind speed of 1.2 m/s (3 mph)—the softest of the year. This month's calm reflects a broader trend observed from June to September, where wind speeds consistently dip, creating a serene atmosphere that's perfect for enjoying the early autumn foliage. As the city transitions into the latter part of the year, October and November see a subtle uptick in wind speeds, hinting at seasonal changes ahead. These shifts, marked by milder winds in the summer months, offer a tranquil prelude to the invigorating breezes that await as Jalapa embraces the vibrant autumn.

Average September Wind Speed in Jalapa

The chart displays monthly wind speed patterns in Jalapa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.71.61.81.81.41.31.41.2 m/s1.31.41.4
Data source: Jalapa September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Jalapa Compares to Other Months

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

September and January present contrasting weather patterns. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 36°C (97°F), with an average of 26°C (79°F). The month is characterized by high humidity at 82% and significant rainfall, totaling 349 mm (13.7 in) across 27 days. In stark contrast, January features milder temperatures, with a minimum of 15°C (59°F) and a maximum of 35°C (95°F), averaging around 25°C (77°F). During this month, precipitation is minimal at only 4 mm (0.2 in) over just one day and humidity drops to a more comfortable 65%. For more insights on the weather during this time, check out Jalapa weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 36°C (97°F), with an average of 26°C (79°F). This month is characterized by significant rainfall, totaling 349 mm (13.7 in) over 27 days and high humidity at 82%. In contrast, February offers a cooler climate with temperatures dipping to a minimum of 14°C (57°F) and reaching a maximum of 36°C (96°F), while maintaining an average of 25°C (78°F). Unlike September, February experiences minimal precipitation, with only 1 mm recorded over 0 days, resulting in a lower humidity level of 61%. For more details on the weather specifics in February, visit Jalapa weather in February.

In comparing the weather between September and March, we see distinct differences. September experiences a warmer atmosphere with average temperatures around 26°C (79°F) and humidity levels at 82%, while March maintains the same average temperature but enjoys a lower minimum of 16°C (62°F) and a comfortable humidity of 59%. Additionally, September is marked by significant rainfall, receiving 349 mm (13.7 in) over 27 days, in stark contrast to the dry conditions of March, which sees virtually no precipitation. For more detailed insights into the weather specifics, you can visit Jalapa weather in March.

In comparing the weather between September and April, significant differences emerge. September experiences higher average temperatures with a minimum of 21°C (70°F) and a maximum reaching up to 36°C (97°F), accompanied by frequent rain, totaling 349 mm (13.7 in) over 27 days, and a high humidity level of 82%. In contrast, April enjoys milder temperatures, with a minimum of 16°C (62°F) and a maximum of 37°C (98°F), but it boasts a remarkably dry climate, with only 2 mm (0.1 in) of precipitation across 0 rainy days and a lower humidity of 62%. This makes April a much drier and more comfortable month compared to the wet and humid conditions of September, especially in places like Jalapa, as detailed in Jalapa weather in April.

September and May present contrasting weather patterns. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 36°C (97°F), with an average of 26°C (79°F). This month is also characterized by high humidity at 82% and significant rainfall, receiving 349 mm (13.7 in) over 27 days. In contrast, May boasts a slightly lower minimum temperature of 18°C (65°F) and a higher average of 28°C (82°F), peaking at 38°C (100°F). Additionally, May experiences much less precipitation, with only 34 mm (1.3 in) falling over just 7 days and humidity levels at a moderate 73%. For more detailed information, visit Jalapa weather in May.

When comparing the weather in September and June, we see some notable similarities and differences. Both months have an average temperature of around 26°C (79°F to 80°F) and reach maximums of 36°C (97°F in September and 96°F in June). However, September tends to be wetter, with 349 mm (13.7 in) of rainfall over 27 days, compared to June's 273 mm (10.7 in) over 24 days. Additionally, September has a slightly higher humidity level at 82%, while June sits at 78%. For a detailed look at June weather, you can check Jalapa weather in June.

In comparing the weather between September and July, both months showcase similar daily temperature ranges, with minimums around 21°C (70°F) and maximums reaching up to 36°C (97°F in September and 98°F in July). However, July tends to be slightly warmer on average at 27°C (80°F) compared to September's average of 26°C (79°F). Additionally, September experiences significantly higher precipitation, with 349 mm (13.7 in) over 27 days, while July has a more moderate 192 mm (7.6 in) spread across 24 days. Humidity levels are also higher in September at 82%, compared to 79% in July. For more details on July weather, you can visit Jalapa weather in July.

In comparing the weather patterns of September and August, we notice that both months experience similar temperature ranges, with minimums at 21°C (70°F), average temperatures around 26°C (79°F in September and 80°F in August), and maximums reaching up to 36°C (97°F). However, September stands out with higher precipitation, totaling 349 mm (13.7 in) over 27 days, compared to August's 277 mm (10.9 in) over 26 days. Additionally, while humidity remains constant at 82% for both months, the increased rainfall in September suggests a wetter and potentially more uncomfortable climate. For more detailed insights on August conditions, you can refer to Jalapa weather in August.

In September, the weather is characterized by higher temperatures, with a maximum reaching up to 36°C (97°F) and substantial precipitation of 349 mm (13.7 in) over 27 days, resulting in high humidity levels at 82%. In contrast, October sees a slight drop in maximum temperatures to 33°C (92°F) while maintaining the same minimum and average temperatures as September. The month experiences less rainfall, totaling 274 mm (10.8 in) over 26 days, and a decrease in humidity to 79%. For more details on October weather in the region, visit Jalapa weather in October.

In comparing the weather of September and November, September tends to be hotter and significantly wetter. With minimum temperatures around 21°C (70°F) and maximums reaching up to 36°C (97°F), September experiences an average temperature of 26°C (79°F) alongside heavy rainfall, totaling 349 mm (13.7 in) over 27 days. In contrast, November shows a slight decrease in both minimum and maximum temperatures, with lows of 18°C (65°F) and highs remaining at 36°C (97°F), but an average still around 26°C (78°F). Additionally, November benefits from much less rainfall, averaging only 47 mm (1.9 in) over just 6 days, which also contributes to a lower humidity level of 72%. For a more detailed look, you can check the Jalapa weather in November.

September weather is characterized by warmer temperatures, with a minimum of 21°C (70°F) and an average of 26°C (79°F), peaking at 36°C (97°F). The month is also notably wet, experiencing 349 mm (13.7 in) of precipitation over 27 days, coupled with high humidity levels of 82%. In contrast, December sees cooler conditions, with a minimum temperature of 16°C (60°F) and an average of 25°C (77°F), reaching a maximum of 34°C (93°F). Rainfall is significantly reduced in December to just 38 mm (1.5 in) over 2 days, and humidity drops to 70%. For more details, you can check Jalapa weather in December.

Compare Jalapa's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Jalapa

As September unfolds in Jalapa, the city experiences a unique blend of warmth and moisture that sets it apart from other months. Average temperatures hover around a comfortable 26°C (79°F), but they can spike to a sweltering 36°C (97°F), providing a stark contrast to the milder conditions of previous months. Rainfall is abundant, with nearly 27 days seeing precipitation, leading to a significant 349 mm (13.7 in) of rain that contributes to the region's lush vegetation. The high humidity, averaging 82%, creates a heavy, tropical atmosphere that is felt throughout the day. This combination of heat and moisture not only distinguishes September from the drier months but also plays a vital role in the local ecosystem. For more detailed insights into the weather patterns, visit Jalapa Climate.