Last updated: April 22, 2025
September in San Miguel, Mexico, offers a dynamic blend of weather experiences. With maximum temperatures reaching 30°C (86°F) and an average of 19°C (66°F), the days are pleasantly warm, while nights can cool down to a refreshing 8°C (47°F). This month records 102 mm (4.0 in) of precipitation over 15 days, creating a lush landscape invigorated by the rains. Humidity levels hover around 81%, adding a tropical feel to the vibrant atmosphere. Whether you are exploring the city's rich culture or enjoying the surrounding nature, September's weather in San Miguel offers a captivating backdrop for all activities.
In September, San Miguel, Mexico, welcomes the transition from summer to fall with mild temperatures that create a pleasant atmosphere for both residents and visitors. The minimum temperature dips to a comfortable 8°C (47°F), while the average hovers around a pleasant 19°C (66°F). The days remain warm, reaching a maximum of 30°C (86°F), making it an ideal time for outdoor activities. As the humidity begins to peak, the warmth is balanced by cooler, refreshing evenings. Overall, the month showcases a harmonious blend of warmth and coolness, encapsulating the essence of early autumn in this charming locale.
In September, San Miguel experiences a significant uptick in rainfall, with 102 mm (4.0 in) of precipitation, making it one of the wettest months of the year. This surge is part of a broader trend observed over the summer months, where rainfall increases steadily from May's 43 mm (1.7 in) to August's 63 mm (2.5 in). With around 15 days of rain, September parallels June's precipitation pattern, highlighting a crucial transition towards the dry season. This pattern of gradual increase in rainfall between May and September not only underscores the region’s tropical influence but also sets the stage for the lessening downpours in October, where precipitation drops to 54 mm (2.1 in).
In September, San Miguel experiences a notable rise in humidity, with levels reaching 81%. This increase is part of a broader trend observed as the months transition from summer to fall. The humidity starts to climb significantly from the middle of the year, peaking in October at 83% and maintaining a high level through November. Comparatively, the months preceding September show lower humidity, with figures consistently trailing in the 58% to 76% range. The heightened moisture in the air during September not only contributes to a muggy atmosphere but also heralds the approaching rainy season, creating a lush backdrop for the vibrant landscapes of San Miguel. As the year progresses towards the winter months, humidity levels gradually stabilize, maintaining a generally high moisture content that characterizes the region's climate.
As we transition into September in San Miguel, the UV Index remains significantly high at 14, classified as extreme, with a burn time of just 10 minutes. This trend reflects the overall pattern from the previous months, where levels peaked during the summer season, maintaining a consistent extreme exposure category since February. With such intensity, it’s crucial for residents and visitors alike to take necessary precautions against sun exposure. The high UV Index underscores the importance of protective measures, especially as we approach the end of the year. For more detailed information on UV levels throughout the year, you can check out San Miguel UV Index.
UV Risk Categories
As September unfolds in San Miguel, Mexico, it brings a delightful average of 286 sunshine hours, marking a slight decline from the sun-soaked peak of May, which boasts an impressive 342 hours. This month serves as a gentle transition into the autumn season, with September's sunshine still abundant, yet noticeably fewer hours than the summer months of June, July, and August, all hovering around the 320-hour mark. As daylight begins to wane, the golden sun continues to cast its warm glow over the charming streets and vibrant culture, inviting locals and visitors alike to savor the lingering summer vibes before the cooler months set in.
In September, the likelihood of sunny weather in San Miguel, Mexico, is notably lower than in the preceding months, with only a 21% chance of sunshine. This decline follows the peak sun potential seen in early spring, particularly in February where the sun shines 82% of the time. As summer approaches, the chances dwindle to a mere 24% in June and 23% in July, suggesting a trend towards cloudier and wetter conditions. By September, while locals and visitors may still hope for glimpses of sun, it’s important to prepare for the possibility of overcast skies, marking a significant shift from the brighter days of earlier months.
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.
In September, San Miguel experiences a gentle breeze, with an average wind speed of 2.1 m/s (5 mph), slightly lower than the summer's peak in August at 3.1 m/s (7 mph). This decrease marks a subtle transition towards the milder winds of the upcoming months, as October and November also settle at 2.1 m/s. The trend indicates a calming of the winds as the year approaches its end, creating a serene atmosphere that complements the enchanting charm of San Miguel. Overall, September’s softer breezes invite visitors to indulge in the region's vibrant culture amidst a backdrop of picturesque landscapes.
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.
September and January showcase stark contrasts in weather patterns. September experiences warmer temperatures, with averages around 19°C (66°F) and highs reaching up to 30°C (86°F), accompanied by higher humidity at 81%. The month sees considerable rainfall, with 102 mm (4.0 in) of precipitation spread over 15 days. In contrast, January offers cooler conditions with an average temperature of 13°C (55°F), with minimums dropping to -1°C (31°F) and maximums of 27°C (82°F). This month is much drier, receiving only 6 mm (0.3 in) of rainfall over just 2 days, and has a slightly lower humidity level of 74%. For a closer look at January's climate, visit San Miguel weather in January.
September and February present contrasting weather characteristics. In September, temperatures range from a mild minimum of 8°C (47°F) to a warm maximum of 30°C (86°F), averaging around 19°C (66°F). The month also sees significant rainfall, with 102 mm (4.0 in) of precipitation over approximately 15 days and an average humidity of 81%. In contrast, February's weather is cooler, with minimum temperatures dropping to 1°C (33°F) and averaging at 15°C (60°F), while still reaching a high of 31°C (89°F). Precipitation is considerably lower in February, totaling only 9 mm (0.4 in) over just 3 days, with humidity at a more comfortable 65%. For more details on February weather, you can visit San Miguel weather in February.
When comparing the weather in September to that in March, there are notable differences in temperature and precipitation. September features a broader temperature range, with nighttime lows around 8°C (47°F) and highs reaching up to 30°C (86°F), while March, although warmer on average, starts off much cooler with a minimum of 0°C (33°F) and peaks at 33°C (92°F). In terms of humidity, September is significantly more humid at 81%, while March has a lower humidity level of 58%. Additionally, September receives much more rainfall, averaging 102 mm (4.0 in) over 15 days compared to just 12 mm (0.5 in) over 3 days in March. For more detailed information, check out San Miguel weather in March.
When comparing the weather in September and April, notable differences emerge. In September, temperatures range from a cool minimum of 8°C (47°F) to a warm maximum of 30°C (86°F), with an average of 19°C (66°F). This month also experiences considerable precipitation, totaling 102 mm (4.0 in) over 15 days, resulting in a high humidity level of 81%. In contrast, April boasts slightly cooler minimum temperatures of 6°C (44°F) and higher maximums reaching up to 34°C (93°F), with an average temperature of 20°C (68°F). April is much drier, receiving only 9 mm (0.3 in) of rain over just 2 days, contributing to a more comfortable humidity of 58%. For more detailed insights about April weather, you can check San Miguel weather in April.
In September, the weather experiences a wider temperature range, with minimums around 8°C (47°F) and maximums reaching 30°C (86°F), averaging 19°C (66°F). This month also sees a significant amount of rainfall, with 102 mm (4.0 in) of precipitation over 15 days and a high humidity level of 81%. In contrast, May tends to be warmer, with an average temperature of 21°C (71°F), minimizing at 8°C (46°F) and peaking at 35°C (95°F). Additionally, May is much drier, receiving only 43 mm (1.7 in) of rain across just 7 days and lower humidity at 67%. For more details, check out San Miguel weather in May.
When comparing the weather in September and June, we see some interesting contrasts. September experiences a minimum temperature of 8°C (47°F) and can reach a maximum of 30°C (86°F), averaging around 19°C (66°F). The month is characterized by significant precipitation, totaling 102 mm (4.0 in) over 15 days, with a relatively high humidity of 81%. In contrast, June starts off slightly warmer, with a minimum of 9°C (49°F) and a maximum of 34°C (93°F), and an average temperature of 20°C (69°F). This month has even higher rainfall, with 111 mm (4.4 in) recorded over the same number of days, and slightly lower humidity at 76%. For a more in-depth look at June weather, you can check San Miguel weather in June.
When comparing the weather in September to that of July, we notice a few key differences. September tends to have slightly cooler temperatures, with a minimum of 8°C (47°F) compared to July’s minimum of 11°C (52°F). Both months share an average temperature of around 19°C (66°F), while July tops out at a slightly higher maximum of 31°C (88°F) compared to September's 30°C (86°F). Additionally, September experiences more precipitation, totaling 102 mm (4.0 in) over 15 days, contrasting with July’s 82 mm (3.2 in) over 12 days. This results in a noticeably higher humidity level in September, averaging 81%, compared to July’s 67%. For more details on July weather, you can visit San Miguel weather in July.
In comparing the weather of September and August, September tends to be cooler, with a minimum temperature of 8°C (47°F) and an average of 19°C (66°F), while August features higher minimum temperatures starting at 12°C (53°F) and an average of 20°C (68°F). The maximum temperatures are comparable, reaching up to 30°C (86°F) in September and 31°C (89°F) in August. Precipitation also increases in September, totaling 102 mm (4.0 in) over 15 days, compared to August's 63 mm (2.5 in) over 11 days, leading to higher humidity levels in September at 81% versus August's 68%. For a closer look at August conditions, check out San Miguel weather in August.
In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 30°C (86°F), with an average temperature of 19°C (66°F). The month sees significant rainfall, with 102 mm (4.0 in) spread over 15 days, resulting in a humidity level of 81%. In contrast, October brings slightly cooler weather, with temperatures dipping to a minimum of 3°C (37°F) and a maximum of 28°C (84°F), averaging 17°C (63°F). Rainfall decreases significantly to 54 mm (2.1 in) over just 10 days, while humidity remains relatively high at 83%. For more detailed information, check out San Miguel weather in October.
September showcases a wider temperature range, with minimums around 8°C (47°F) and maximums reaching up to 30°C (86°F), averaging at 19°C (66°F). It is also quite humid at 81% and experiences significant rainfall with 102 mm (4.0 in) over 15 days. In contrast, November brings cooler conditions, with temperatures ranging from a chilly 0°C (32°F) at night to a maximum of 29°C (84°F), averaging at 15°C (59°F). The month is much drier, receiving only 20 mm (0.8 in) of precipitation over just 3 days, and sees a slightly higher humidity level of 84%. For more details, check out San Miguel weather in November.
September and December present contrasting weather patterns. In September, temperatures typically range from a minimum of 8°C (47°F) to an average of 19°C (66°F), peaking at a maximum of 30°C (86°F). The month is characterized by relatively high humidity at 81% and significant precipitation, with about 102 mm (4.0 in) spread over 15 days. In contrast, December sees cooler temperatures, with a minimum dipping to -3°C (28°F) and an average of 13°C (55°F), while maximums reach 27°C (81°F). Rainfall is minimal, totaling just 7 mm (0.3 in) over a single day, maintaining the same humidity level of 81%. For more detailed insights, visit San Miguel weather in December.
As September wraps up the summer season in San Miguel, it brings a distinct transition in weather that sets it apart from other months. With average temperatures hovering around a pleasant 19°C (66°F), the city experiences warmer days that can reach up to a maximum of 30°C (86°F), providing a welcome warmth before autumn settles in. However, the month is also characterized by increased humidity levels nearing 81% and a notable amount of rainfall, with precipitation on around 15 days contributing to a lush environment. This blend of warmth and moisture not only refreshes the landscape but also marks the beginning of a new season, making September a unique time to experience the vibrant beauty of San Miguel. For a deeper look into the climate nuances throughout the year, check out San Miguel Climate.