Last updated: April 22, 2025
September in Jalisco, Mexico is characterized by mild temperatures and notable precipitation, making it a unique time to experience the region. With maximum temperatures reaching 26°C (79°F) and an average of 18°C (65°F), the climate remains pleasantly warm, while minimums can dip to 11°C (53°F), especially during cooler nights. This month sees significant rainfall, averaging 262 mm (10.3 in) over a staggering 27 days, contributing to a humidity level of approximately 77%. Visitors can expect a lush landscape and a vibrant atmosphere, perfect for exploring the region’s natural beauty amidst the refreshing rains.
In September, Jalisco experiences a mild transition as temperatures begin to cool slightly after the summer months. With minimums around 11°C (53°F) and a comfortable average of 18°C (65°F), the month captures the essence of early autumn. The highs reach a gentle 26°C (79°F), offering pleasant days that are perfect for outdoor activities before the more pronounced chill of October sets in. This subtle shift not only marks a reduction in heat compared to the peak summer months but also invites visitors to enjoy the region's natural beauty and vibrant culture in a more temperate climate.
In September, Jalisco experiences a significant peak in precipitation, with 262 mm (10.3 in) of rain falling over the month, marking one of the wettest periods of the year. This substantial rainfall occurs over approximately 27 days, showcasing the region's transition to the latter part of the rainy season. The increase in precipitation from August (191 mm) indicates a pattern where the monsoon effects reach their climax as September unfolds, making it crucial for agriculture yet also presenting challenges with flooding. As the region moves into October, the rainfall begins to taper to 227 mm (8.9 in), highlighting a seasonal shift that prepares Jalisco for drier months ahead.
September in Jalisco, Mexico, experiences a noticeable rise in humidity, with levels reaching 77%. This increase reflects a shift from the drier months of spring and early summer, where humidity dipped to a low of 52% in April. As the rainy season peaks, September’s humidity highlights the transition from summer’s warm embrace to the cooler, wetter embrace of autumn. Interestingly, humidity levels remain relatively stable as the year progresses, peaking again in November at 82% before gradually declining towards the year's end. This cyclical pattern showcases Jalisco's diverse climate, offering a blend of warm and humid days that characterize its vibrant seasonal shifts.
In September, Jalisco experiences a UV Index of 14, categorizing it as an extreme exposure level, with a burn time of just 10 minutes. This month continues the trend set from June to August, where the UV Index consistently hovered around 15, demonstrating the region's high susceptibility to harmful solar radiation. As the year progresses into October, the UV Index starts to slightly decline to 13, yet vigilance remains essential. With an unwavering pattern of extreme UV levels throughout much of the year, it’s crucial for residents and visitors alike to take proper precautions. For more detailed information, check out the comprehensive Jalisco UV Index.
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As the summer wanes, September brings a delightful balance of warmth and sunshine to Jalisco, Mexico, with an impressive 298 hours of sunlight. This marks a slight dip from the sun-drenched days of July and August, which boast 332 and 322 hours, respectively. However, September's luminous skies still offer plenty of opportunities for outdoor adventures and revelry against a backdrop of vibrant landscapes. Following this month, sunshine remains generous through October and November, maintaining around 300-303 hours of radiant light, ensuring that the transition to fall continues to charm both locals and visitors alike. The overall trend showcases a sunny climate that holds steadfast, inviting everyone to bask in the golden glow year-round.
In Jalisco, Mexico, the likelihood of sunny weather dips significantly in September, with only a 17% chance of clear skies. This trend marks one of the lowest probabilities of sunshine for the year, following a gradual decline from the earlier months. After the relatively sunnier days of February and March, where chances peak at over 50%, the summer months bring a stark contrast, with June through August consistently showcasing very little sun. As the region transitions into fall, sunshine returns slowly, with October slightly improving to a 26% chance. Overall, if you're hoping for beautiful, sunny days in September, you might want to plan for some clouds instead.
In September, Jalisco, Mexico enjoys a generous 12 hours of daylight, maintaining the trend seen throughout the summer months. Following the peak sunlight of June, which offers the longest days at 13 hours, the daylight duration gradually stabilizes into the autumn season. This consistency from March to September, where daylight remains between 12 to 13 hours, creates an inviting atmosphere for outdoor activities and exploration. As the year progresses into October, the daylight begins to taper off, aligning with the decrease observed in preceding months, but September stands out as a perfect example of Jalisco's rich, vibrant days that invite both adventure and relaxation in the sun.
As summer transitions to autumn in Jalisco, Mexico, September brings with it a gentle shift in the winds. The average wind speed dips to 1.4 m/s (3 mph), marking it as one of the calmer months of the year. This slight decrease follows a generally varied wind pattern from the earlier months, where increased gusts were common, peaking in July at 2.1 m/s (5 mph). While September's breezes are less pronounced, they provide a soothing backdrop to the region's vibrant landscapes, hinting at the upcoming changes of fall with the promise of cooler temperatures and a refreshing atmosphere. The trend of diminishing wind speeds continues into October, maintaining a tranquil ambiance that enhances the beauty of Jalisco's early autumn charm.
The weather in Jalisco 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 Jalisco and find detailed weather information for every month.
September and January exhibit contrasting weather patterns. In September, temperatures range from a minimum of 11°C (53°F) to a maximum of 26°C (79°F), with an average of 18°C (65°F). This month sees significant rainfall, with a total of 262 mm (10.3 in) over 27 days and humidity levels at 77%. In contrast, January is cooler, with temperatures varying from 3°C (38°F) to 27°C (81°F) and an average of 14°C (58°F). Precipitation is substantially lower at 64 mm (2.5 in) across 13 days, and humidity rises slightly to 84%. For more details on January weather, visit Jalisco weather in January.
September and February present contrasting weather patterns, highlighting the transition from late summer to early spring. In September, temperatures range from a minimum of 11°C (53°F) to a maximum of 26°C (79°F), with an average of 18°C (65°F). The month is marked by significant rainfall, totaling 262 mm (10.3 in) over 27 days, contributing to a high humidity level of 77%. In contrast, February brings milder temperatures, with a minimum of 5°C (41°F) and a maximum of 29°C (84°F), averaging around 15°C (60°F). Precipitation is markedly lower at 43 mm (1.7 in) over just 11 days, while humidity sits at 73%. For a closer look at February weather in this region, check out Jalisco weather in February.
September's weather is characterized by milder temperatures, with minimums around 11°C (53°F) and an average high of 26°C (79°F). However, it is also quite wet, averaging 262 mm (10.3 in) of precipitation over 27 days, resulting in a high humidity of 77%. In contrast, March presents a more comfortable climate, with minimum temperatures dipping to around 5°C (42°F) and an average high of 29°C (84°F). Rainfall is minimal during this month, totaling just 36 mm (1.4 in) over 8 days, leading to lower humidity levels of 59%. For more details on March weather in this region, check out Jalisco weather in March.
In September, temperatures range from a minimum of 11°C (53°F) to a maximum of 26°C (79°F), with an average temperature of 18°C (65°F). This month typically sees significant rainfall, averaging 262 mm (10.3 in) over 27 days, accompanied by high humidity levels at 77%. In contrast, April experiences slightly cooler minimum temperatures of 7°C (44°F), but can reach highs of 31°C (88°F), maintaining an average of 18°C (65°F). Precipitation in April is markedly lower, at 79 mm (3.1 in) over just 13 days, with a more comfortable humidity level of 52%. For more details on April weather conditions, you can check Jalisco weather in April.
In comparing the weather between September and May, we find notable differences in temperature and humidity. September tends to be cooler, with average temperatures ranging from a low of 11°C (53°F) to a high of 26°C (79°F), while May experiences a wider temperature range, with a minimum of 10°C (51°F) and a maximum of 31°C (88°F). Additionally, May is characterized by significantly lower humidity at 53%, compared to September's more humid atmosphere at 77%. Precipitation also varies, with September receiving more rain (262 mm or 10.3 in over 27 days) compared to May's 196 mm (7.7 in over 24 days). For more details, you can check Jalisco weather in May.
In September, the weather exhibits a mild temperature range, with minimums around 11°C (53°F), average temperatures at 18°C (65°F), and maximums reaching 26°C (79°F). The month is characterized by higher humidity levels at 77% and significant rainfall, accumulating 262 mm (10.3 inches) over 27 days. In contrast, June sees slightly warmer temperatures, with a similar minimum (11°C, 52°F), an average of 18°C (66°F), but higher maximums of 29°C (85°F). June also experiences more precipitation, totaling 331 mm (13.0 inches) over the same number of rainy days, yet with lower humidity levels at 55%. For more detailed insights into June's weather patterns, visit Jalisco weather in June.
In terms of weather, September tends to be slightly warmer than July, with minimum temperatures around 11°C (53°F) compared to July's 10°C (50°F). Both months feature similar average and maximum temperatures, hovering around 18°C (64°F) and 26°C (79°F), respectively. However, September experiences significantly more precipitation, with 262 mm (10.3 in) falling over 27 days, compared to July's 114 mm (4.5 in) over 22 days. Additionally, September's humidity level is higher at 77%, in contrast to July's 61%. For a more detailed look at July's weather, you can visit Jalisco weather in July.
In September, temperatures remain relatively stable with a minimum of 11°C, averaging 18°C, and peaking at 26°C, which is similar to August's range of 10°C to 27°C. However, September experiences significantly higher precipitation, totaling 262 mm over 27 days, compared to August's 191 mm over 24 days. Humidity also rises in September to 77%, above August's 71%. For a closer look at August conditions, you can visit Jalisco weather in August.
In September, temperatures range from a minimum of 11°C (53°F) to a maximum of 26°C (79°F), with an average of 18°C (65°F). The month is marked by considerable rainfall, totaling 262 mm (10.3 in) over 27 days, and a humidity level of 77%. In contrast, October experiences slightly cooler temperatures, with a minimum of 9°C (49°F) and a maximum of 27°C (81°F), while maintaining an average of 18°C (64°F). Precipitation decreases to 227 mm (8.9 in) over 24 days, along with a similar humidity level of 78%. Overall, October offers a milder climate with less rainfall compared to September. For more details, you can explore Jalisco weather in October.
September and November present distinct weather patterns. September enjoys warmer temperatures, with a minimum of 11°C (53°F) and an average of 18°C (65°F), while November's temperatures drop slightly, reaching a minimum of 5°C (42°F) and an average of 16°C (61°F). Interestingly, both months share a maximum temperature of 26°C (79°F) in September and 26°C (80°F) in November. Precipitation levels are much higher in September, totaling 262 mm (10.3 in) over 27 days, compared to November's 103 mm (4.1 in) across just 16 days. Humidity remains relatively high in both months, with November slightly edging out September at 82% compared to 77%. For more details on the weather in November, you can check Jalisco weather in November.
In September, the weather is generally warmer, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 26°C (79°F), and an average of 18°C (65°F). The month is also characterized by high humidity at 77% and substantial rainfall, totaling 262 mm (10.3 in) over 27 days. In contrast, December presents cooler temperatures, with a minimum of 2°C (36°F), an average of 15°C (59°F), and a maximum that can still reach 26°C (79°F). Precipitation drops significantly to 52 mm (2.0 in) over just 12 days, while humidity increases slightly to 86%. For more detailed insights, you can explore Jalisco weather in December.
As September rolls in, Jalisco experiences a shift in its weather patterns, marked by a notable rise in humidity and frequent precipitation. The month can feel quite different from the drier summer months, as rainfall becomes prevalent, with nearly every day seeing some drizzle or downpour. This increase in moisture leads to a cooler average temperature, providing a refreshing break from the heat. While it’s certainly a time of lush landscapes and vibrant greenery, travelers should come prepared for wet conditions. For a deeper dive into Jalisco's climate throughout the year, check out Jalisco Climate.