Last updated: April 22, 2025
September in Guadalajara, Mexico, showcases a dynamic blend of warmth and moisture, with temperatures reaching a maximum of 31°C (87°F) and an average of 22°C (71°F), while dipping to a minimum of 15°C (60°F) at night. The month is characterized by significant precipitation, accumulating to about 227 mm (8.9 in) over 23 days, contributing to a humid atmosphere with humidity levels averaging 84%. This combination of warmth and rain makes for a lush and vibrant landscape, emphasizing the unique charm of Guadalajara during this transitional month.
In September, Guadalajara experiences a pleasant shift in temperatures, with minimums averaging around 15°C (60°F) and maximums reaching up to 31°C (87°F). This month sees a comfortable average of 22°C (71°F), setting the stage for enjoyable outdoor activities before the cooler months arrive. Compared to the preceding summer months, where high temperatures peaked at 38°C (100°F), September offers a welcome respite, making it an ideal time for visitors to explore the city’s vibrant culture and stunning landscapes. As the rainy season continues, expect refreshing showers that further enhance the city's lush greenery, adding to its charm during this transitional time of year.
In September, Guadalajara experiences a notable peak in precipitation, receiving 227 mm (8.9 in) of rain over approximately 23 days. This heavy rainfall marks a continuation of the city’s summer rainy season, which typically begins in June and culminates in September. The amount of precipitation closely follows the intense downpours seen in July and August, though slightly less than the latter months. The pattern suggests that September remains crucial for replenishing water sources, as the city transitions into a drier autumn. This trend underscores the importance of seasonal rainfall for both the local ecosystem and agricultural practices in the region, highlighting the dramatic shifts that characterize Guadalajara's climate throughout the year.
In September, Guadalajara, Mexico, experiences a notable peak in humidity, reaching 84%, making it one of the most humid months of the year. This increase follows a trend of rising humidity beginning in June, which sees levels jump from a relatively dry 42% in April to a substantial 74% by June. July and August continue to elevate this sticky climate, with humidity levels hitting 79% and 81%, respectively. As the rainy season culminates in September, the air becomes densely saturated, making it a time of palpable moisture before humidity begins to decline again in October to 75%. Overall, September serves as a tipping point, marking the transition from the intense summer humidity to a gradual easing in the months ahead.
In September, Guadalajara experiences a consistent UV Index of 13, maintaining the extreme exposure category that dominated the summer months. With a short burn time of just 10 minutes, the city's sun exposure remains potent even as the heat of summer begins to wane. This trend of high UV levels from June through September demonstrates the need for sun protection throughout these months. As the seasons transition into autumn, residents and visitors alike should stay vigilant against overexposure to sunlight. For more detailed information, check out Guadalajara UV Index.
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September in Guadalajara, Mexico, experiences a gentle transition, with 276 hours of sunshine illuminating the city. This marks a slight dip from the sun-drenched months of May and April, which both soar over 320 hours. As summer gives way to fall, the city still boasts more sunlight than the earlier months of the year, such as January, which only receives 230 hours. This trend reflects a gradual decline in sunshine as the year progresses, yet September retains a warm, vibrant glow, promising ample opportunities for exploration and outdoor enjoyment against the backdrop of the city’s rich cultural tapestry.
As September rolls into Guadalajara, the likelihood of basking in the sun diminishes significantly, with only a 20% chance of sunny weather. This marks a stark contrast to the sun-drenched months of January through May, where probabilities soared above 60%. The descent into the rainy season becomes more pronounced as summer, particularly July and August, yields meager forecasts. Following September, the sun's reemergence is gradually felt in October with a 38% chance, suggesting that while the air may feel cooler and the clouds may gather, hints of sunny days are not entirely lost. For those planning trips or enjoying outdoor activities, keeping an eye on the weather is essential, as September leans heavily toward overcast skies and potential rain.
In Guadalajara, Mexico, the daylight duration exhibits a captivating rhythm throughout the year. September, with its 12 hours of daylight, marks a transition from the warmer summer months, where daylight extends to its peak of 13 hours in May, June, and July. As the year progresses, the days gradually shorten, pairing down to 11 hours by October and slipping further to 10 hours in December. This trend reveals a harmonious cycle, where the vibrant long days of summer give way to a more tempered light in fall, creating a dynamic yet soothing environment as the city gears up for the cooler months.
As September arrives in Guadalajara, Mexico, the wind gently whispers through the city's vibrant streets, maintaining an average speed of 1.2 m/s (3 mph). This marks a slight decline from the warmer months of June and July, which boasted livelier breezes of 1.6 and 1.2 m/s, respectively. The transition into fall brings a subtle calm, as the wind eases from the spring and summer's more invigorating gusts—April peaked at 2.1 m/s (5 mph). Despite this gentler pace, September's winds still offer a refreshing counterpart to the lingering warmth, creating a soothing atmosphere that perfectly complements the onset of the season.
The weather in Guadalajara 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 Guadalajara and find detailed weather information for every month.
September and January present contrasting weather conditions. In September, temperatures range from a minimum of 15°C (60°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 84% and significant rainfall, with 227 mm (8.9 in) of precipitation falling over 23 days. In stark contrast, January experiences much cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 30°C (87°F), averaging around 17°C (63°F). The month is notably drier, receiving only 8 mm (0.3 in) of rain over just 1 day, and has a lower humidity level of 64%. For a more detailed look at the weather during this month, you can visit Guadalajara weather in January.
September and February present contrasting weather conditions in terms of temperature, precipitation, and humidity. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 31°C (87°F), with an average of 22°C (71°F). This month also experiences significant rainfall, with 227 mm (8.9 in) of precipitation over 23 days, contributing to high humidity levels at 84%. In contrast, February features milder temperatures, with a minimum of 6°C (43°F) and a maximum of 32°C (89°F), while the average temperature settles at 19°C (66°F). Notably, February sees much less precipitation, totaling only 14 mm (0.5 in) over just 1 day, and a lower humidity level of 57%. For more details on February weather in Guadalajara, you can visit Guadalajara weather in February.
In comparing the weather between September and March, one can observe notable differences. September experiences a mild average temperature of 22°C (71°F), with daily highs reaching up to 31°C (87°F) and lows around 15°C (60°F). However, it is also characterized by high humidity at 84% and frequent rainfall, with approximately 227 mm (8.9 in) of precipitation over 23 days. In contrast, March showcases a similar average temperature of 22°C (71°F), but with warmer highs that can reach 35°C (95°F). The month is much drier, seeing virtually no precipitation (only about 3 mm or 0.1 in) and a significantly lower humidity level of 46%. For more details on March weather, you can visit Guadalajara weather in March.
When comparing the weather in September and April, notable differences emerge. September tends to be much wetter, with an average temperature of 22°C (71°F) and a high of 31°C (87°F), accompanied by a significant 227 mm (8.9 in) of precipitation over 23 days, resulting in 84% humidity. In contrast, April boasts a higher maximum temperature of 35°C (96°F) but enjoys minimal precipitation, with just 1 mm (0.0 in) and no rainy days, leading to a much drier atmosphere and lower humidity at 42%. For more detailed information on the weather during April, you can visit Guadalajara weather in April.
September's weather is characterized by a warmer average temperature of 22°C (71°F) and maxing out at 31°C (87°F), but it also brings significant rainfall, with 227 mm (8.9 in) spread over 23 days and high humidity at 84%. In contrast, May boasts an average temperature of 25°C (77°F) with maximum highs reaching up to 38°C (100°F), yet it experiences minimal precipitation at just 14 mm (0.5 in) over 3 days, resulting in a much lower humidity level of 51%. For more detailed insights, you can refer to Guadalajara weather in May.
September weather is characterized by slightly cooler temperatures compared to June, with average daily highs reaching 31°C (87°F) versus June's maximum of 38°C (100°F). While the minimum temperatures are somewhat similar, with September starting at 15°C (60°F) and June at 16°C (61°F), September experiences much higher humidity at 84% compared to June's 74%. Additionally, September is notably wetter, receiving 227 mm (8.9 in) of rain over 23 days, while June has only 99 mm (3.9 in) across 15 days. For more details about June weather conditions, visit Guadalajara weather in June.
In comparing the weather between July and September, both months exhibit similar average temperatures, hovering around 22°C (72°F). However, July typically experiences slightly higher maximum temperatures, reaching up to 33°C (91°F), compared to September's peak of 31°C (87°F). Precipitation levels are notable in both months, with July receiving about 243 mm (9.6 in) over 27 days and September slightly less at 227 mm (8.9 in) over 23 days. Humidity remains relatively high in both months, with September being slightly more humid at 84% compared to July’s 79%. For a closer look at July weather patterns, you can refer to Guadalajara weather in July.
In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 31°C (87°F), maintaining an average temperature similar to that of August, which also has a range of 14°C (57°F) to 31°C (88°F). Both months experience significant precipitation, with September seeing slightly higher rainfall at 227 mm (8.9 in) compared to August's 225 mm (8.8 in). However, September has more rainy days, totaling 23, while August has 27 days of precipitation, contributing to a higher humidity level of 84% in September compared to 81% in August. For more detailed information on August weather, you can visit Guadalajara weather in August.
September tends to be warmer and more humid than October, with average temperatures peaking at 22°C (71°F) and reaching a maximum of 31°C (87°F). It also sees significantly more rainfall, averaging 227 mm (8.9 in) over 23 days, leading to a high humidity level of 84%. In contrast, October experiences slightly cooler temperatures with a minimum of 10°C (51°F) and averages around 21°C (71°F). Moreover, it has a much drier climate, receiving only 73 mm (2.9 in) of precipitation over about 10 days and a lower humidity of 75%. For more details on the weather in October, you can check Guadalajara weather in October.
In September, weather conditions are typically warmer with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 31°C (87°F), accompanied by high humidity levels at 84%. This month also sees considerable rainfall, totaling 227 mm (8.9 in) over approximately 23 days, making it one of the wetter months of the year. In contrast, November experiences cooler temperatures, with a minimum of 7°C (45°F) and an average of 19°C (67°F), yet it shares a similar maximum temperature of 31°C (88°F). Notably, November is much drier, receiving only 21 mm (0.8 in) of precipitation across just 3 days and lower humidity levels at 71%. For a more detailed look at November’s climate, you can check Guadalajara weather in November.
In comparing the weather of September and December, it's evident that September experiences significantly warmer temperatures, with a minimum of 15°C (60°F) and an average of 22°C (71°F), peaking at 31°C (87°F). This month also sees considerable rainfall, with 227 mm (8.9 in) over 23 days, resulting in high humidity levels of 84%. In contrast, December offers much cooler conditions, featuring a minimum temperature of 3°C (38°F) and averaging 17°C (63°F), while the maximum can reach 29°C (84°F). Rainfall is minimal in December, with only 10 mm (0.4 in) over just one day, contributing to a lower humidity level of 74%. For further details, you can visit Guadalajara weather in December.
September in Guadalajara presents a notable contrast to other months, characterized by warm temperatures paired with high humidity, creating a sultry atmosphere. As the rainy season peaks, the city experiences frequent downpours, contributing to a lush landscape and cooler evenings. This month, with its considerable precipitation and cloud cover, stands apart from the drier periods, making it essential for visitors and locals alike to prepare for the wet weather. For a deeper understanding of the city's climate throughout the year, explore Guadalajara Climate.