Last updated: April 22, 2025
September in El Bajio, Mexico, presents a warm and humid climate, with maximum temperatures reaching 38°C (100°F) and an average of 28°C (83°F). The region experiences frequent rain, as indicated by 242 mm (9.5 in) of precipitation over 24 days this month. Humidity levels soar to an average of 87%, creating a sultry atmosphere that characterizes this transitional period. Visitors should be prepared for weather variations, with a mix of sunny skies and scattered showers, making September a dynamic time to explore the vibrant landscapes of El Bajio.
In September, El Bajio, Mexico, maintains a warm profile, characteristic of the late summer season. With minimum temperatures hovering around 23°C (74°F) and averages settling at 28°C (83°F), the month offers a blend of lingering warmth. However, as the month progresses, temperatures peak at a max of 38°C (100°F), mirroring the highs of August. This pattern showcases a slight dip in average temperature, down from the previous month's steady warmth, hinting at the gradual transition towards fall. Although rainfall may begin to increase, the overall warmth ensures that the vibrancy of summer lingers, inviting visitors to enjoy the region's natural beauty before the cooler months set in.
In September, El Bajio experiences a significant surge in precipitation, with an impressive 242 mm (9.5 in) over 24 rain-soaked days, marking it as one of the wettest months of the year. This spike follows the growing rainfall pattern established during the summer, particularly after the heavy downpours of June and August. The trend reveals a persistent rainy season, peaking before the drier months ahead, such as October, which still holds considerable rainfall but averages at 292 mm (11.5 in) despite fewer days of rain. This seasonal pattern underscores the region's transition from the lush, vibrant summer to a more temperate fall, where moisture levels begin to recede.
September in El Bajio, Mexico, marks the peak of humidity, mirroring August's 87% levels. This trend of elevated humidity begins in the summer months, peaking in late summer and early fall as temperatures drop but moisture in the air remains high. Notably, the humidity has a gradual decline from the heavy, moist months of January through April, when it dips to 59%. However, as the year progresses, the humidity rises again, maintaining a consistent high level of around 88% through October to December. This cyclical pattern highlights El Bajio's tropical influences, creating a lush environment that is both inviting and vibrant.
In September, El Bajio, Mexico, maintains a notably high UV Index of 12, indicating a level of extreme exposure where unprotected skin can burn in just 10 minutes. This trend of extreme UV levels has been consistent since February, peaking in June with a UV Index of 14. Throughout the summer months, particularly from May to August, the region experienced persistently high UV readings, encouraging residents and visitors alike to take necessary precautions against sun exposure. As the year transitions into the fall months, the Index shows a slight decline, yet remains significantly high. To stay informed about UV levels and ensure safety, check the detailed information here: El Bajio UV Index.
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In September, El Bajio, Mexico, basks in an impressive 300 hours of sunshine, contributing to a vibrant transition from summer to autumn. This month reflects a slight dip from the peak sunshine of 332 hours in July and 328 hours in August, yet it remains robust compared to the earlier months of the year. The trend shows that as we ease into the fall, sunshine hours decrease gradually, yet September holds strong as one of the sunniest months of the year, effortlessly bridging the warmth of summer with the cooler days ahead. With October bringing a further reduction to 289 hours, September serves as a perfect backdrop for enjoying the lingering warmth and splendor of El Bajio's beauty before the daylight wanes.
In El Bajio, Mexico, the likelihood of sunny weather in September takes a notable dip, with just a 24% chance of sun. This marks a significant decline from the sunnier months earlier in the year, where February and March boast chances of 69% and 71%, respectively. As summer transitions into fall, the region experiences a shift, with June and July already reflecting diminished sunshine at 18% and 36%. While September's probability of clear skies may be less than ideal, it resonates with a broader trend of fluctuating weather patterns that characterize the changing seasons in El Bajio.
In El Bajio, Mexico, the sunlight begins to wane as September arrives, offering a 12-hour day that mirrors the longer days of the preceding summer months. The trend from June through August showcases a gradual peak of 13 hours, as long, sun-drenched days captivate locals and visitors alike. However, as the transition into fall takes hold, daylight durations decrease slightly, settling back to 12 hours in September before dipping again in October. This seasonal shift reflects the region's rhythmic embrace of both light and darkness, transitioning smoothly from the vibrant summer to the cooler months ahead.
In September, the winds in El Bajio, Mexico, tend to whisper more softly, with an average speed of just 1.8 m/s (4 mph), marking the calm before autumn truly settles in. This gentle breeze contrasts with the lively gusts that pick up during the summer months, particularly July, which boasts an average speed of 3.2 m/s (7 mph). As the year progresses, it's interesting to note the overall decline in wind speed from the peak summer days, suggesting a transition towards the more tranquil rhythm of fall. With the wind's quiet demeanor in September, residents and visitors can embrace the serene atmosphere, making it a perfect time for leisurely outdoor activities amidst stunning sunsets and warm temperatures.
The weather in El Bajio 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 El Bajio and find detailed weather information for every month.
In September, the weather is notably warmer, with average temperatures reaching 28°C (83°F) and highs soaring to 38°C (100°F). The month also experiences significant rainfall, totaling 242 mm (9.5 in) over 24 days, contributing to high humidity levels of 87%. In contrast, January brings milder conditions with temperatures averaging 23°C (75°F), peaking at a maximum of 34°C (93°F). The rainfall is considerably less in January, at 73 mm (2.9 in) spread across only 10 days, and the humidity drops slightly to 83%. For more detailed insights, check El Bajio weather in January.
In September, the weather is notably warmer and more humid, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 38°C (100°F). This month experiences considerable precipitation, with an average of 242 mm (9.5 in) over 24 days, contributing to a humidity level of 87%. In contrast, February offers a milder climate, with temperatures ranging from a minimum of 15°C (58°F) to a maximum of 35°C (96°F). Rainfall is significantly lower at just 30 mm (1.2 in) over 5 days, and the humidity drops to 76%. For a more detailed look at February weather, you can check El Bajio weather in February.
September and March exhibit contrasting weather patterns. In September, the temperatures range from a minimum of 23°C (74°F) to a maximum of 38°C (100°F), with an average of 28°C (83°F). This month is characterized by significant rainfall, totaling 242 mm (9.5 in) over 24 days, alongside high humidity levels at 87%. In stark contrast, March offers milder conditions, with temperatures ranging from 17°C (63°F) to 37°C (99°F) and an average of 27°C (80°F). Precipitation is notably lower in March, at just 31 mm (1.2 in) over 6 days, and humidity drops to 66%. For a detailed look at March weather specifics, you can refer to El Bajio weather in March.
When comparing the weather in September and April, notable differences emerge. September typically experiences a minimum temperature of 23°C (74°F) and can peak at 38°C (100°F), with an average temperature of 28°C (83°F). The month is characterized by high humidity at 87% and significant rainfall, totaling 242 mm (9.5 in) over 24 days. In contrast, April tends to be slightly warmer, with a minimum of 19°C (66°F) and a maximum reaching 41°C (106°F), while the average temperature remains at 29°C (84°F). April boasts lower precipitation, only 45 mm (1.8 in) over about 6 days, and has a much more comfortable humidity level of 59%. For more details on April's weather, you can visit El Bajio weather in April.
When comparing the weather in September and May, we find notable differences in temperature and humidity. September typically experiences a minimum temperature of 23°C (74°F) and an average of 28°C (83°F), with daytime highs soaring up to 38°C (100°F). This month is also characterized by significant rainfall, accumulating around 242 mm (9.5 in) over approximately 24 rainy days, contributing to a high humidity level of 87%. In contrast, May sees slightly cooler minimum temperatures at 20°C (69°F) and a higher average temperature of 30°C (87°F), with maximum temperatures reaching as high as 41°C (106°F). Rainfall in May is notably less, with only about 90 mm (3.5 in) over 11 days, and the humidity is more comfortable at 64%. For more detailed insights, you can check El Bajio weather in May.
When comparing the weather in September and June, both months exhibit similar temperature ranges, with minimums around 23°C (73-74°F) and maximums peaking at 38°C (100°F). However, September tends to be slightly cooler on average at 28°C (83°F) compared to June's average of 29°C (84°F). Precipitation differs notably; September receives 242 mm (9.5 in) over 24 days, making it a wetter month than June, which has 284 mm (11.2 in) over 19 days. Additionally, September's humidity is significantly higher at 87%, while June has a more comfortable humidity level of 69%. For a detailed look at June weather in the area, you can visit El Bajio weather in June.
September and July exhibit notable differences in weather patterns, despite having similar minimum temperatures of around 23°C (74°F). In July, the average temperature is slightly higher at 29°C (85°F), with a maximum reaching 39°C (102°F). This warmth is accompanied by less precipitation, totaling 86 mm (3.4 in) over 15 days, and a humidity level of 82%. In contrast, September sees a decrease in average temperature to 28°C (83°F) but can peak at a similar maximum of 38°C (100°F). However, it experiences significantly more rainfall, amounting to 242 mm (9.5 in) across 24 days, and higher humidity at 87%. For more details on July weather, you can check out El Bajio weather in July.
In comparing the weather between August and September, we see that both months experience high temperatures, with a minimum of 23°C (74°F) and a maximum reaching 38°C (100°F) in each month. However, September sees a slight dip in average temperature, dropping from 29°C (85°F) in August to 28°C (83°F). Notably, September is significantly wetter, with 242 mm (9.5 in) of precipitation over 24 days compared to August’s 152 mm (6.0 in) over 21 days. Despite the increased rainfall, both months maintain a consistent humidity level of 87%. This makes September a month of higher precipitation and slightly cooler temperatures, enhancing the contrast with August. For more details on August's weather, you can visit El Bajio weather in August.
In comparing the weather patterns of September and October, September tends to be slightly hotter, with average temperatures reaching 28°C (83°F) and a maximum of 38°C (100°F). In contrast, October sees a slight dip in temperatures, averaging around 27°C (81°F) and peaking at 36°C (96°F). Rainfall increases in October, with a total of 292 mm (11.5 in) over 22 days, compared to September's 242 mm (9.5 in) over 24 days. Humidity remains high in both months, with October registering at 88%, just marginally higher than September's 87%. For more detailed insights, you can visit El Bajio weather in October.
September and November present distinct weather contrasts. In September, the temperatures are significantly warmer, with a minimum of 23°C (74°F) and an average of 28°C (83°F), peaking at 38°C (100°F). This month also experiences high humidity at 87% and substantial rainfall, totaling 242 mm (9.5 in) over 24 days. In contrast, November sees cooler temperatures, with a minimum of 17°C (64°F) and an average of 25°C (77°F), with a maximum of 34°C (94°F). The precipitation in November is lower at 153 mm (6.0 in) and occurs over just 17 days, while humidity slightly increases to 88%. For more specific details, you can check El Bajio weather in November.
In September, the weather is characterized by much warmer temperatures, with nightly lows around 23°C (74°F) and highs soaring up to 38°C (100°F). The month experiences significant rainfall, totaling 242 mm (9.5 in) over 24 days, and the humidity remains high at 87%. In contrast, December brings cooler, more comfortable temperatures, with a minimum of 14°C (58°F) and a maximum of 33°C (92°F), averaging 24°C (75°F). Precipitation decreases notably to 76 mm (3.0 in) across 12 days, while humidity remains slightly elevated at 88%. For more details on December weather, you can visit El Bajio weather in December.
As September unfolds in El Bajio, the weather takes a distinct turn, showcasing increased humidity and frequent rainfall that sets it apart from the drier months of the year. With an average temperature that balances between warmth and comfort, this month often feels more sultry due to the substantial precipitation over nearly every day. The vibrant green landscapes and refreshing atmosphere can be a welcome escape from the heat of summer, making September a unique time to experience the region's charm. For a deeper dive into the year-round climate shifts, visit El Bajio Climate.