Last updated: April 22, 2025
In September, Nuevo Leon, Mexico, experiences a vibrant mix of weather patterns, characterized by a maximum temperature soaring up to 39°C (103°F) and an average temperature of 27°C (81°F). The evenings bring a welcome respite with a minimum temperature dipping to 17°C (64°F). Although the month is punctuated by 37 mm (1.4 in) of rainfall over 5 days, high humidity levels at 82% often contribute to a tropical feel. This intriguing blend of heat and moisture makes September a unique time to explore the region's rich landscapes and cultural offerings.
In September, Nuevo Leon, Mexico, transitions into the heart of autumn with temperatures offering a mild reprieve from the summer heat. The minimum temperature hovers around 17°C (64°F), while daily averages reach a comfortable 27°C (81°F), providing an inviting atmosphere for outdoor activities. The maximum temperature can still soar to 39°C (103°F), reminiscent of summer's residual warmth, but this month often features more balanced days. As the month progresses, residents and visitors alike begin to enjoy more pleasant evenings, signaling a shift from the intense summer heat and hinting at the cooler months ahead. This blend of warmth and mildness makes September an ideal time to experience all that Nuevo Leon has to offer.
In September, Nuevo Leon experiences a significant uptick in precipitation, receiving 37 mm (1.4 in) of rain over 5 days, marking it as the wettest month of the year. This surge follows the typically drier summer months, with August recording only 13 mm (0.5 in). The increase in rainfall not only rejuvenates the landscape but also signals the transition into the wetter season. This pattern highlights a broader trend of escalating precipitation as the year progresses, contrasting sharply with the near dryness seen in the earlier months, where from January to April, rainfall barely reached 4 mm in total. As September's rains forge ahead, they pave the way for October's 28 mm (1.1 in), further establishing a rhythm of moisture that nurtures the region's climate.
As September rolls in, Nuevo Leon, Mexico, experiences a notable uptick in humidity, reaching 82%, making it one of the most humid months of the year. Following the warm summer months, where humidity peaked at 73% in July and slightly dipped to 71% in August, September's humidity marks a clear transition into the wetter part of the year. This increase is significant considering the gradual decline from 70% in January to the much drier 48% in April. As the region heads into October, humidity levels continue to rise, peaking at 83%, indicating a pattern of elevated moisture that characterizes the late summer and early fall months. This trend not only enriches the atmosphere but also sets the stage for the vibrant colors of autumn foliage that the region is known for.
In September, Nuevo Leon, Mexico, experiences a UV Index of 13, categorized as extreme, with a burn time of just 10 minutes. This level of UV exposure is consistent with the preceding months, showcasing a trend of sustained high intensity from April through September. The region's UV Index tends to peak during the summer, remaining at this extreme status, highlighting the need for diligent sun protection. As temperatures begin to shift in October, a slight reduction to an UV Index of 11 is observed, yet the caution remains paramount. For more detailed insights into UV levels and protection strategies, visit Nuevo Leon UV Index.
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September in Nuevo Leon, Mexico, continues the region's impressive sun-soaked streak, with an average of 298 hours of sunshine. While this marks a dip from the peak sunny months of July and August, which bask in a delightful 356 and 343 hours respectively, it still reflects a vibrant transition into autumn. The sunshine pattern displays a warming trend as the year progresses, peaking in summer before gently tapering off in the fall. This shift not only preserves the charm of the late summer sun but also hints at the gradual coolness that October brings, with its 291 hours of sunlight. As daylight hours wane and temperatures ease, September remains a glorious time, striking a balance between summer's exuberance and autumn's embrace.
In Nuevo Leon, Mexico, September sees a 58% chance of sunny weather, marking a noticeable decline from the sunnier months of late spring and early summer. As we transition from August's 52% to September's slightly improved likelihood, the region begins to shift into fall. This dip in sunshine is framed by a backdrop of higher probabilities earlier in the year, peaking in May at 77%. While September may not boast the brightest days, it's still a month where the sun graces the landscape more often than not, making it a perfect time for outdoor activities—should the clouds permit!
As September arrives in Nuevo Leon, Mexico, the days begin to gradually shorten, offering about 12 hours of daylight. This month marks a transition from the peak summer brightness of July and August, which basked in 13 hours of sunshine, to the shorter days of October that will see a decrease to 11 hours. The steady decline in daylight from the long, vibrant summer months reflects a natural ebb, paving the way for the cozy ambiance of autumn. With daylight durations beginning to shift, September invites residents to relish the last vestiges of summer warmth while preparing for the chillier, shorter days ahead.
As September unfolds in Nuevo Leon, Mexico, the air carries a gentle whisper of the wind at an average speed of 3.0 m/s (7 mph). This mild breeze marks a slight decrease from the summer highs of June and July, which feature more robust winds at around 3.8 m/s (8 mph). Interestingly, September serves as a transition point, nestling comfortably between the bustling summer gusts and the quieter breaths of early autumn. The trend of gradually declining wind speeds continues into October, hinting at the calm that accompanies the changing seasons. This consistent yet soothing airflow not only provides a refreshing respite but also sets the stage for the upcoming crispness of fall.
The weather in Nuevo Leon 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 Nuevo Leon and find detailed weather information for every month.
September and January present stark contrasts in weather conditions. In September, temperatures range significantly, with a minimum of 17°C (64°F) and soaring highs of up to 39°C (103°F), making the month feel quite warm overall. The average temperature sits at a comfortable 27°C (81°F), accompanied by higher humidity at 82% and occasional rainfall totaling 37 mm (1.4 in) over about five days. In contrast, January features much cooler temperatures, peaking at a maximum of only 31°C (88°F) and dipping to a chilly minimum of 0°C (33°F). The average temperature for January is a mild 15°C (60°F), with very little precipitation—just 4 mm (0.2 in)—and no rainy days, resulting in a drier atmosphere with lower humidity at 70%. For detailed insights into January weather, you can check Nuevo Leon weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a mild 17°C (64°F) at night to a scorching 39°C (103°F) during the day, with an average of 27°C (81°F). This month also experiences higher humidity at 82% and receives about 37 mm (1.4 in) of precipitation over approximately five days. In contrast, February features a much cooler climate, with temperatures dipping to a minimum of 0°C (33°F) and peaking at 36°C (97°F) during the day, averaging 19°C (66°F). Notably, February is drier, with only 5 mm (0.2 in) of precipitation and no rainy days, accompanied by a lower humidity of 62%. For more detailed insights, check out Nuevo Leon weather in February.
When comparing the weather in September and March, notable differences emerge. September typically experiences warmer temperatures with an average of 27°C (81°F) and high humidity at 82%, while lows rarely drop below 17°C (64°F). In contrast, March offers a cooler climate, with an average temperature of 22°C (72°F) and nighttime lows reaching as low as 6°C (43°F). The rainfall in September is also considerably higher, with 37 mm (1.4 in) over about five days, whereas March boasts little to no precipitation, making it a drier month. Overall, September feels much more humid and warmer compared to the crisp and relatively dry weather of March. For a detailed look at March conditions, you can visit Nuevo Leon weather in March.
In September, the weather is notably warmer and more humid compared to April. With minimum temperatures around 17°C (64°F) and average highs reaching 39°C (103°F), September experiences an average temperature of 27°C (81°F), accompanied by 37 mm of precipitation over five days and a humidity level of 82%. In contrast, April boasts a more comfortable climate, with minimum temperatures dipping to 8°C (47°F) and average highs at 38°C (101°F), but with significantly lower humidity at 48% and virtually no precipitation (only 1 mm). For more details on April weather in the area, check out Nuevo Leon weather in April.
September and May exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 17°C (64°F) to a maximum of 39°C (103°F), with an average of 27°C (81°F). There is also a significant amount of humidity at 82% and precipitation totaling 37 mm (1.4 in) over approximately five days. In contrast, May features slightly cooler temperatures, with a minimum of 14°C (58°F) and a maximum reaching up to 42°C (107°F). The average temperature is a warm 29°C (85°F), but with much lower humidity at 52% and minimal precipitation of just 4 mm (0.2 in) over one day. These differences highlight May as a drier and warmer month compared to the more humid and wetter September. For more details, check out Nuevo Leon weather in May.
In comparing the weather of September and June, it's clear that both months experience warm temperatures, but with some distinct differences. September sees a minimum temperature of 17°C (64°F) and averages around 27°C (81°F), peaking at 39°C (103°F), while June generally has slightly higher temperatures, starting at a minimum of 18°C (65°F), averaging 30°C (87°F), and reaching a maximum of 42°C (108°F). Additionally, September experiences more humidity at 82% compared to June's 64%, which may contribute to a feeling of heaviness in the air. Precipitation is also more frequent in September with 37 mm (1.4 in) over 5 days, versus June's 14 mm (0.5 in) over just 3 days. For further insights into the June weather, you can explore Nuevo Leon weather in June.
In comparing the weather of September and July, we see that September tends to be slightly cooler, with minimum temperatures of 17°C (64°F) compared to July's minimum of 20°C (69°F). The average temperature in September is 27°C (81°F), while July has a warmer average of 29°C (85°F). Despite having similar maximum temperatures, with July reaching up to 40°C (105°F) and September peaking at 39°C (103°F), September experiences more rainfall, totaling 37 mm (1.4 in) over 5 days, compared to July's 23 mm (0.9 in) over 3 days. Additionally, September's humidity is higher at 82%, in contrast to July's 73%. For a more detailed look at July weather, check out Nuevo Leon weather in July.
In September, the weather begins to shift slightly compared to August, with average temperatures dropping from 30°C (86°F) to 27°C (81°F). Both months experience maximum temperatures peaking at around 39°C (102°F-103°F), but September has a higher minimum temperature of 17°C (64°F) compared to August's 19°C (66°F). September also sees increased humidity levels at 82% and slightly more precipitation, totaling 37 mm (1.4 in) over five days, while August records only 13 mm (0.5 in) over three days. For more detailed information, check the Nuevo Leon weather in August.
In September, temperatures are notably warmer, with a minimum of 17°C (64°F) and an average high reaching up to 39°C (103°F). The month typically sees about 37 mm (1.4 in) of rainfall spread over 5 days, accompanied by high humidity levels at 82%. In contrast, October brings a significant drop in temperature, with a minimum of 9°C (48°F) and an average high of 37°C (99°F). Precipitation also decreases to 28 mm (1.1 in) over just 4 days, while humidity remains slightly elevated at 83%. For more details, visit Nuevo Leon weather in October.
In September, the weather is characterized by warm temperatures, with a minimum of 17°C (64°F) and a scorching maximum of 39°C (103°F), making for an average of 27°C (81°F). With 37 mm (1.4 in) of precipitation over five days, humidity remains consistently high at 82%. In contrast, November brings a notable shift, featuring cooler conditions where the minimum temperature drops to -1°C (31°F) and averages around 19°C (67°F), peaking at 35°C (94°F). Notably, November experiences significantly less precipitation, with only 6 mm (0.2 in) and no rainy days, while humidity remains steady at 82%. For more detailed information, check out Nuevo Leon weather in November.
In September, the weather is characterized by warm temperatures, with a minimum of 17°C (64°F) and an average of 27°C (81°F), peaking at a scorching 39°C (103°F). The month experiences relatively high humidity at 82%, along with 37 mm (1.4 in) of precipitation over about 5 days. Conversely, December brings a dramatic shift, with much cooler temperatures that range from a minimum of -1°C (31°F) to an average of 16°C (61°F) and a maximum of only 31°C (89°F). During this month, the humidity remains high at 84%, but precipitation drops significantly to just 11 mm (0.4 in) over 1 day. For more details on the weather in December, you can visit Nuevo Leon weather in December.
As September rolls into Nuevo Leon, the weather begins to transition from the intense summer heat to more moderate conditions. With an average temperature that dips from the sweltering highs, the month offers a refreshing contrast to the scorching summer months, making it more comfortable for outdoor activities. Although rainfall becomes more frequent, with several precipitation days scattered throughout the month, this moisture supports the lushness of the region. The humidity remains high, lending a tropical feel to the air, but the balance of warm afternoons and cooler evenings makes September a delightful time to experience the beauty of Nuevo Leon. For a deeper dive into the region's climate patterns, be sure to check out Nuevo Leon Climate.