Last updated: April 22, 2025
September in San Miguel, Mexico brings a tapestry of warm weather and vibrant humidity, with average temperatures hovering around 26°C (80°F). Residents and visitors can expect maximum highs reaching up to 34°C (93°F), while the evenings cool down to a pleasant minimum of 22°C (71°F). This month is characterized by substantial rainfall, totaling 381 mm (15.0 in) over an average of 28 rainy days, resulting in a humidity level of 83%. Whether you're exploring the historical streets or enjoying local cuisine, be prepared for a mix of sun and showers that adds to the charm of this vibrant city during September.
In September, San Miguel, Mexico experiences a transition from the warmer summer months, showcasing mildly comfortable temperatures. With minimums around 22°C (71°F) and averages peaking at 26°C (80°F), the climate remains inviting for outdoor activities. While maximum temperatures can reach 34°C (93°F), the evenings cool down, allowing for pleasant nights. This month marks a slight dip from the relentless heat of July and August, indicating the approaching fall season. Overall, September offers a balanced blend of warmth and cooling breezes, making it an ideal time to explore this vibrant destination.
September marks a significant moment in San Miguel, Mexico’s climatic narrative, as it receives 381 mm (15.0 in) of precipitation over 28 days—a considerable dip from the torrential deluge of August, which recorded 466 mm (18.4 in) across the entire month. This trend highlights September as a crucial transitional period, where the relentless storms of the summer months begin to wane, yet still deliver ample rainfall. Following a stunning July with 294 mm and August’s peak, residents experience a gradual reduction in rain, signaling the approach of the dryer months ahead. As September wraps up the monsoon season, the lingering showers nourish the landscape, ensuring vibrant growth while offering a reprieve from the summer's intensity.
September in San Miguel, Mexico, marks the culmination of a notably humid season, with levels peaking at 83%. This month, along with the preceding August, showcases some of the highest humidity levels of the year, creating a lush and vibrant atmosphere. After the drier months of April and May, where humidity dropped to the mid-50s, the return of moisture begins in June, leading to a gradual increase that climaxes in late summer. The patterns reveal a distinct rhythmic shift from cooler, drier months into a sultry and humid finale, as autumn approaches and prepares for a slight tapering down in October to 78%. This transition not only enriches the region’s natural beauty but also contributes to its unique charm during the late summer and early fall seasons.
In September, San Miguel experiences a UV Index of 12, categorized as extreme, with a burn time of just 10 minutes. This trend of high UV exposure continues from the summer months, maintaining the serious caution necessary for outdoor activities. As the year progresses from January's lower indices, the UV levels steadily rise, reaching their peak in April to August. Although September shows a slight decrease from August's peak of 12, it remains crucial to take protective measures against the sun's harmful rays. With the UV Index gradually lowering into the fall months, it's important to stay informed and protected, especially during this intense period of solar radiation. For more details on UV levels throughout the year, visit San Miguel UV Index.
UV Risk Categories
In September, San Miguel enjoys a delightful 267 hours of sunshine, marking the transition from the vibrant summer months to the more temperate autumn season. This sunshine figure reflects a decrease from the sunny peak of 355 hours in May, yet remains comfortably above the winter months, showcasing the area's generous climate. As the year progresses, sunshine hours gradually decline, with March to April experiencing the most radiant stretch, while September still offers a warm, welcoming glow ideal for exploring the city's rich culture and stunning landscapes. Overall, the trend underscores San Miguel's allure as a sun-soaked haven throughout the year, continuing to captivate visitors long after the summer sun has set.
When considering the likelihood of sunny weather in San Miguel, Mexico, September stands out as a rather cloudy month, with only a 28% chance of sunshine. This marks a significant dip from the vibrant May, where the sun shines 83% of the time, and follows a trend of declining sunshine from the peak summer months. July and August are particularly gloomy, with chances falling to 21% and 17%, respectively, as the region transitions into the rainy season. However, fortunes brighten again in October, with a 49% chance of sunny days, indicating that while September may not be ideal for sun seekers, clear skies are just around the corner.
In September, San Miguel enjoys a pleasant 12 hours of daylight, showcasing a continuation of the longer days typical of late summer. As the year progresses from March through August, the daylight steadily increases, peaking at 13 hours in the summer months. However, as the fall approaches, daylight begins to gradually wane, transitioning into the equally balanced 11 hours in October and November. This gentle shift signals the onset of shorter days, inviting a cozy atmosphere as daylight hours recede, yet still providing ample time to soak in the sun’s warm embrace before the winter months arrive.
As the September wind sweeps through San Miguel, Mexico, it carries with it a gentle whisper, marked by a slight dip in average wind speed to 1.2 m/s (3 mph). This trend reflects a broader seasonal pattern, where the gusts soften from the spring and early summer months, which boast higher velocities up to 1.8 m/s. The transition into autumn is characterized by a soothing calm, as the winds gradually diminish, creating a serene atmosphere perfect for leisurely strolls through the charming streets. This pattern not only enhances the inviting ambiance of the town but also signals the approach of cooler days ahead, while still embracing the warmth of the sun.
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.
The weather in September is characterized by warm temperatures, with an average of 26°C (80°F) and highs reaching up to 34°C (93°F), but it also brings significant rainfall, totaling 381 mm (15.0 in) over 28 days, resulting in high humidity levels at 83%. In stark contrast, January offers a much cooler climate, with minimum temperatures dropping to 5°C (42°F) and average temperatures around 20°C (69°F), while maximums can reach 32°C (90°F). January is notably drier, with only 15 mm (0.6 in) of precipitation in just 1 day and lower humidity at 74%. For a detailed look at January's climate, you can check San Miguel weather in January.
When comparing the weather in September and February, a notable difference in temperature and precipitation emerges. September experiences warmer temperatures, with a minimum of 22°C (71°F) and an average of 26°C (80°F), while February offers cooler temperatures, with a minimum of 9°C (49°F) and an average of 21°C (70°F). Additionally, September is characterized by high humidity at 83% and significant rainfall, with 381 mm (15.0 in) falling over 28 days. In contrast, February boasts a much drier climate, with only 14 mm (0.6 in) of precipitation spread over just one day and a reduced humidity level of 66%. For more detailed information about the weather in February, you can visit San Miguel weather in February.
In September, temperatures are notably warmer, with a minimum of 22°C (71°F) and an average of 26°C (80°F), peaking at 34°C (93°F). The month is characterized by significant rainfall, totaling 381 mm (15.0 in) over 28 days, contributing to a high humidity level of 83%. In contrast, March experiences much cooler temperatures, with a minimum of 9°C (48°F) and an average of 22°C (72°F), while still reaching a maximum of 34°C (93°F). Remarkably, March sees no rainfall, with 0 mm (0.0 in) over the entire month and a lower humidity of 61%. For more detailed information on March weather, you can visit San Miguel weather in March.
In September, the weather is typically much warmer and more humid than in April, with average temperatures ranging from 22°C (71°F) to a maximum of 34°C (93°F), accompanied by significant rainfall of 381 mm (15.0 in) over 28 days. This high humidity level of 83% makes September feel quite sultry. In contrast, April boasts milder temperatures, with a minimum of 11°C (51°F) and an average of 23°C (73°F), while remaining dry with no precipitation and a lower humidity of 56%. For more detailed information, you can check San Miguel weather in April.
In comparing the weather between September and May, notable differences emerge. September sees higher average temperatures, ranging from a minimum of 22°C (71°F) to a maximum of 34°C (93°F), and an exceptionally high average humidity of 83%. Additionally, it experiences considerable rainfall, with 381 mm (15.0 in) spread across 28 days. In contrast, May is characterized by milder conditions, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 35°C (96°F) and significantly lower humidity at 61%. Remarkably, May experiences very little precipitation, with only 2 mm (0.1 in) recorded over 0 days. For more detailed weather insights, you can check San Miguel weather in May.
In comparing the weather of September and June, one can observe some notable differences. September generally has a warmer minimum temperature of 22°C (71°F), while June starts slightly cooler at a minimum of 17°C (63°F). The average temperatures are comparable, with September averaging 26°C (80°F) and June at 27°C (81°F). However, June tends to be hotter at its maximum, reaching 36°C (97°F) compared to September's peak of 34°C (93°F). Rainfall is significantly higher in September, with 381 mm (15.0 in) over 28 days, indicating a more humid and wet month, while June sees only 108 mm (4.3 in) over 11 days, resulting in lower humidity levels of 73%. For more detailed insights about June weather, visit San Miguel weather in June.
When comparing the weather in September and July, both months exhibit warm temperatures, with September experiencing slightly cooler averages. In September, temperatures range from a minimum of 22°C (71°F) to a maximum of 34°C (93°F), while July sees a higher peak, reaching up to 38°C (101°F) and an average of 27°C (81°F). Precipitation is significantly higher in September, totaling 381 mm (15.0 in) over 28 days compared to July's 294 mm (11.6 in) over 26 days. Humidity remains relatively consistent between the two months, with September at 83% and July at 82%. For a more detailed look, you can refer to San Miguel weather in July.
Comparing the weather in September and August reveals some notable similarities and differences. Both months experience warm temperatures, with September averaging 26°C (80°F) and August slightly warmer at 27°C (81°F). The maximum temperatures remain high in both months, peaking at 34°C (93°F) in September and 34°C (94°F) in August. However, September is characterized by slightly lower precipitation, recording 381 mm (15.0 in) over 28 days compared to August's 466 mm (18.4 in) over 30 days. Despite this, both months share a high humidity level of 83%. For more detailed insights into August weather, you can check San Miguel weather in August.
In comparing the weather of September and October, September exhibits warmer temperatures, with nighttime lows averaging 22°C (71°F) and a maximum of 34°C (93°F), while October sees slight cooling, with minimum temperatures around 18°C (65°F). Both months share the same average temperature of 26°C (79°F), but October is significantly drier, receiving only 175 mm (6.9 in) of precipitation over 17 days compared to September's heavy rainfall of 381 mm (15.0 in) spread over 28 days. Additionally, October's humidity is a bit more comfortable at 78%, compared to September's higher 83%. For more details, you can check out San Miguel weather in October.
September and November showcase distinct weather characteristics. In September, temperatures range from a minimum of 22°C (71°F) to a scorching maximum of 34°C (93°F), with an average of 26°C (80°F). This month experiences significant rainfall, accumulating 381 mm (15.0 in) over 28 days, and high humidity levels at 83%. In contrast, November features cooler temperatures, with a minimum of 13°C (55°F) and an average of 24°C (75°F), while still reaching a maximum of 34°C (93°F). Rainfall dramatically decreases to just 10 mm (0.4 in) over a single day, and humidity lowers slightly to 77%. For more details on the weather during this month, you can view San Miguel weather in November.
September and December present strikingly different weather conditions. In September, temperatures range from a min of 22°C (71°F) to a max of 34°C (93°F), with an average of 26°C (80°F). The month is characterized by high humidity at 83% and considerable rainfall, totaling 381 mm (15.0 in) over 28 days. In contrast, December boasts much cooler temperatures, with a minimum of 10°C (51°F) and a maximum of 31°C (89°F), averaging 21°C (70°F). Precipitation is minimal in December, with only 9 mm (0.3 in) falling across the month and no rainy days. Humidity also decreases somewhat to 78%. For more details, visit San Miguel weather in December.
As summer transitions to fall, September in San Miguel brings a unique blend of warmth and humidity, distinguishing it from the drier months that precede it. With temperatures averaging a comfortable 26°C (80°F) and a noteworthy amount of rainfall, this month experiences diverse weather patterns, characterized by nearly daily showers. The humidity tends to rise, creating a lush environment as nature thrives in the wetness. The shift in weather not only cools the air but also enhances the vibrant landscapes, making it a beautiful time to visit. For a deeper understanding of the local climate, check out San Miguel Climate.