Last updated: April 22, 2025
September in San Miguel, Mexico offers a dynamic weather experience, featuring maximum temperatures reaching a sizzling 39°C (103°F) and an average of 27°C (81°F), providing warmth throughout the month. The heat is tempered by cooler nights, dropping to a refreshing 16°C (62°F). With 33 mm (1.3 in) of precipitation over 5 days, this month sees occasional rain and increased humidity levels at 82%, creating a vibrant atmosphere. Visitors can enjoy the lush landscapes and lively culture, all while staying prepared for both sunny days and brief showers.
In September, San Miguel, Mexico, experiences a delightful transition as the summer heat begins to wane. With minimum temperatures around 16°C (62°F) and an average of 27°C (81°F), the weather remains pleasantly warm without the intensity of the preceding months. The highs can still reach a balmy 39°C (103°F), reflecting the lingering summer influence. This trend marks a gradual cooling compared to the scorching peaks of May and June, where temperatures frequently soared above 40°C (104°F). As autumn approaches, September offers a wonderful opportunity to enjoy San Miguel's vibrant culture in comfortable conditions, making it a favored time for visitors seeking a mix of warmth and mild evenings.
In September, San Miguel experiences a notable uptick in precipitation, receiving 33 mm (1.3 in) of rain over the course of five days. This marks a distinct shift from the drier months preceding it, where rainfall remains sparse, with most months averaging less than 10 mm. The early months of the year, like January and February, see no rainfall at all, while the summer months bring only modest showers. September's increased rainfall signals the onset of the wet season, establishing it as a pivotal month in the yearly climate cycle. As the city transitions from the dry heat of summer to the cooler, rain-soaked fall, the landscape flourishes, benefiting from this much-needed hydration.
As summer transitions into fall in San Miguel, September marks a notable shift in humidity levels, soaring to a stuffy 82%. This increase is part of a broader trend observed throughout the year, where humidity starts relatively low in the early months—with January's 70%—but gradually climbs during the warmer summer months. After reaching a peak in September, humidity remains high, slightly rising to 83% in October and then settling around 82% for November. This seasonal uptick reflects the region's shift from the drier heat of summer to the wetter conditions typical of the fall, making September a particularly humid month that serves as a precursor to the even more muggy weeks that follow.
September in San Miguel, Mexico, sees a consistent and intense UV Index of 13, placing it in the extreme exposure category. This trend reflects the peak sun intensity experienced during the summer months, with a short burn time of just 10 minutes, urging residents and visitors alike to take precautions against overexposure. As the year progresses, the UV levels start to decline, notably in October, but September firmly holds its ground as part of a season characterized by high solar radiation. Understanding this pattern is essential for enjoying the sun safely; for more detailed information, visit San Miguel UV Index.
UV Risk Categories
September in San Miguel, Mexico, serves as a delightful transition as summer gently wanes. With an impressive 298 hours of sunshine, this month still holds onto the warmth accumulated through the summer, while gradually yielding to the milder autumn days that follow. The sun-kissed hours reflect a remarkable consistency in weather, peaking at 356 hours in July and steadily tapering into the fall months. Compared to the preceding August with 343 hours, September offers a slightly cooler ambiance while still inviting plenty of outdoor exploration. This picturesque setting ensures that September remains a beloved time for both locals and visitors, celebrating the vibrant charm of San Miguel under a golden sky.
In San Miguel, Mexico, the likelihood of sunny weather in September stands at 61%, reflecting a gradual increase in sunshine as the summer months conclude. Following the diminished probabilities seen in July and August, where chances drop to 55% and 53% respectively, September shows a promising uptick, aligning with the vibrant atmosphere of early fall. This trend continues into October, where sun chances rise further to 70%. As a result, visitors can anticipate enjoyable days filled with sunshine as the lush landscapes transition into their autumn hues. Overall, September emerges as a sweet spot for those seeking a delightful blend of warmth and manageable weather.
In September, San Miguel enjoys a delightful 12 hours of daylight, continuing the trend of ample sunlight that peaks in the summer months. Following a gradual increase that begins in January with just 10 hours, daylight reaches its zenith in May, June, and July at 13 hours. As summer wanes, the light begins to taper off slightly, with August and September holding steady at 12 hours before the days start to shorten further in the fall. This pattern showcases the region’s balanced climate, offering residents and visitors alike the perfect backdrop for outdoor activities as the vibrant hues of the changing season unfold.
As September unfolds in San Miguel, the gentle winds continue to make their presence felt, averaging 3.7 m/s (8 mph). This breeze, consistent with the preceding months of July and August, suggests a delightful transition as the summer heat gives way to the more moderate temperatures of early autumn. Interestingly, the wind speed in September mirrors that of August, highlighting a calm yet refreshing atmosphere ideal for leisurely outdoor activities. The trend of increasing wind speeds observed from January through June peaks this month, before gradually tapering off into the quieter months of October and November. This creates a perfect backdrop for enjoying the vibrant culture and stunning vistas that San Miguel has to offer.
The weather in San Miguel 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 San Miguel and find detailed weather information for every month.
In September, the weather is characterized by warm temperatures, with minimums averaging 16°C (62°F) and highs reaching up to 39°C (103°F). The month sees a fair amount of humidity at 82% and experiences an average of 33 mm (1.3 in) of precipitation over about 5 days. In stark contrast, January brings much cooler conditions, where temperatures range from a minimum of 0°C (33°F) to a maximum of 32°C (89°F), with an average of 15°C (60°F). Additionally, January is notably drier, with only 4 mm (0.1 in) of precipitation over no rainy days and a lower humidity level of 70%. For more detailed information, you can check San Miguel weather in January.
September and February exhibit contrasting weather patterns. In September, temperatures range from a minimum of 16°C (62°F) to a maximum of 39°C (103°F), with an average of 27°C (81°F) and a relatively high humidity level of 82%. The month experiences about 33 mm (1.3 in) of precipitation over five days, suggesting a more humid and rainy climate. Conversely, February presents a cooler climate, with temperatures dipping as low as -1°C (31°F) at night but averaging 19°C (67°F) and reaching up to 36°C (97°F) during the day. Remarkably, February has minimal rainfall with only 5 mm (0.2 in) spread across no rainy days and a humidity level of 62%. For more detailed insights into February weather, you can visit San Miguel weather in February.
When comparing the weather in September and March, September tends to be much warmer with average temperatures reaching 27°C (81°F) and a maximum of 39°C (103°F). In contrast, March experiences a cooler average of 22°C (73°F) and a minimum temperature of 6°C (43°F). Precipitation is also more frequent in September, with 33 mm (1.3 in) over 5 days, while March sees significantly lower rainfall of just 9 mm (0.3 in) in only 1 day. Additionally, September has a higher humidity level at 82%, compared to March's more comfortable 53%. For more detailed insights, you can check out San Miguel weather in March.
When comparing the weather in September and April, notable differences emerge. September typically showcases warmer days with an average temperature of 27°C (81°F) and peaks reaching up to 39°C (103°F), accompanied by a higher humidity level of 82%. Conversely, April sees slightly cooler conditions, with an average temperature of 26°C (79°F) and a maximum of 38°C (101°F), but boasts much lower humidity at 48%. Additionally, September experiences more rainfall, registering about 33 mm (1.3 in) over five days, while April is relatively dry with only 2 mm (0.1 in) of precipitation over no rainy days. For a more detailed look at April conditions, you can check out San Miguel weather in April.
When comparing the weather in September and May, it is evident that both months exhibit warm temperatures, but with notable differences. September enjoys temperatures ranging from a minimum of 16°C (62°F) to a maximum of 39°C (103°F), with an average of 27°C (81°F). This month also experiences higher humidity at 82% and receives some precipitation, totaling 33 mm (1.3 in) over approximately five days. In contrast, May boasts a slightly lower minimum temperature of 14°C (58°F) but has a higher average of 29°C (85°F) and can peak at 42°C (108°F). Additionally, May is characterized by low humidity at 52% and almost no precipitation, with only 4 mm (0.2 in) recorded over zero days. For more detailed insights into May's weather, you can visit San Miguel weather in May.
When comparing the weather in September and June, September tends to be slightly cooler with average temperatures ranging from a minimum of 16°C (62°F) to a maximum of 39°C (103°F), while June offers warmer conditions with temperatures averaging between 19°C (66°F) and 42°C (108°F). Additionally, September experiences higher humidity at 82%, compared to June's more comfortable 64%. Precipitation is also more frequent in September, with about 33 mm (1.3 in) falling over 5 days, whereas June sees only 12 mm (0.5 in) over just 3 days. For more detailed information, you can visit San Miguel weather in June.
In comparing the weather between September and July, we note some distinct differences. September typically experiences a slightly lower minimum temperature of 16°C (62°F) compared to July’s minimum of 20°C (69°F). The average temperatures are also close, with September averaging 27°C (81°F) and July averaging 29°C (85°F). July, however, reaches a higher maximum temperature of 40°C (104°F) than September's 39°C (103°F). Precipitation is more frequent in September, with 33 mm (1.3 in) falling over 5 days, whereas July sees only 22 mm (0.9 in) over 3 days. Additionally, September is more humid, with levels around 82%, compared to July's 73%. For more detailed information on July weather, you can visit San Miguel weather in July.
In comparing the weather between September and August, September experiences slightly cooler minimum temperatures, with a low of 16°C (62°F) compared to August's 18°C (65°F). However, the average temperature in August is warmer at 30°C (85°F), while September's average is 27°C (81°F). Both months can reach the same maximum temperature of 39°C (103°F). September sees more precipitation, with 33 mm (1.3 in) over 5 days, in contrast to August's minimal 8 mm (0.3 in) over just 2 days. Additionally, September has higher humidity levels at 82%, compared to August's 71%. For more detailed information on August's weather, visit San Miguel weather in August.
September experiences warmer temperatures, with averages ranging from a minimum of 16°C (62°F) to a scorching maximum of 39°C (103°F). In contrast, October sees cooler conditions, with temperatures dipping to a minimum of 9°C (48°F) and a maximum of 37°C (98°F). Both months have relatively high humidity, around 82-83%, but October is slightly cooler with less precipitation, totaling 24 mm (1.0 in) over just 4 days compared to September's 33 mm (1.3 in) over 5 days. For more detailed information, you can visit San Miguel weather in October.
September and November present starkly contrasting weather conditions. In September, temperatures usually range from a minimum of 16°C (62°F) to a maximum of 39°C (103°F), with an average of 27°C (81°F) and relatively high humidity at 82%. Precipitation is moderate, with about 33 mm (1.3 in) falling over approximately five days. In contrast, November features much cooler temperatures, with a minimum of -1°C (31°F), an average of 19°C (67°F), and a maximum of 34°C (94°F). The month experiences significantly less rainfall, totaling just 5 mm (0.2 in) over a single day, while humidity remains consistent at 82%. For a detailed look at November's weather, you can check San Miguel weather in November.
September's weather is characterized by warm temperatures, with a minimum of 16°C (62°F) and an average of 27°C (81°F), peaking at a high of 39°C (103°F). The month also sees relatively high humidity at 82% and some rainfall, totaling 33 mm (1.3 in) over about 5 days. In contrast, December brings a stark change, with temperatures dropping significantly, featuring a minimum of -1°C (30°F) and averaging around 16°C (61°F), with a maximum of 32°C (90°F). The month experiences much lower precipitation, with only 11 mm (0.4 in) over a single day, and humidity slightly increasing to 84%. For more detailed insights, you can check out the San Miguel weather in December.
As September unfolds in San Miguel, it brings a notable transition in weather patterns compared to the summer months. The average temperature settles at a comfortable 27°C (81°F), offering a reprieve from the intense heat, while maximum temperatures can still soar to 39°C (103°F) during the day. With an average humidity of 82% and occasional precipitation, this month introduces a hint of moisture to the otherwise dry climate, leading to refreshing changes after the hot summer. The rain typically graces the city for about five days, providing a much-needed break from the relentless sun. To explore more about what San Miguel has to offer in terms of weather throughout the year, visit the San Miguel Climate page.