September Weather in San Miguel, Mexico

Last updated: April 22, 2025

September in San Miguel, Mexico, brings a cool yet vibrant climate, with temperatures peaking at 27°C (81°F) and sliding to a comfortable average of 18°C (65°F). Nights can be brisk, dipping to a refreshing 10°C (50°F). This month is characterized by significant precipitation, with 227 mm (8.9 in) falling over 24 days, making it the wettest time of the year. With an average humidity of 86%, the air feels rich and invigorating, creating a lush backdrop that enhances the town's charm. Visitors can expect a dynamic blend of mild weather and plentiful rain, perfect for exploring the scenic beauty and cultural delights of San Miguel.

September Temperature in San Miguel

In September, San Miguel, Mexico, experiences mild and pleasant weather, with temperatures showing a gentle transition towards the cooler months. The minimum temperature hovers around 10°C (50°F), rising to an average of 18°C (65°F) by day, while the maximum peaks at 27°C (81°F). This reflects a slight dip in warmth compared to the summer months, with both high and low temperatures gradually decreasing. As the month progresses, the comforting balance of warmth and cooler nights creates a delightful atmosphere, making September an ideal time to explore the vibrant culture and stunning landscapes of this charming town.

September Weather in San Miguel: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Miguel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec576062666765646564636057
Data source: Temperature data for San Miguel generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in San Miguel

September marks a significant shift in San Miguel's precipitation patterns, with rainfall peaking at 227 mm (8.9 in). This month stands out not only for its high volume but also for the frequency of precipitation, occurring on 24 days. This robust precipitation signals the tail end of the rainy season, following a gradual buildup from the wetter months of June and July. The increase in both amount and frequency highlights the region's transition into the fall, as nature enjoys its final flourish before the drier months ahead. With September's rainfall contributing substantially to the area's annual totals, it serves as a crucial period for replenishing water resources and revitalizing the local landscape.

September Precipitation Trends in San Miguel

The chart displays monthly precipitation patterns in San Miguel, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec191423521021981221392271124013
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Miguel

September in San Miguel, Mexico, brings a humidity level of 86%, marking a noticeable uptick from the summer months. As the rainy season approaches its peak, the atmosphere becomes increasingly lush and damp, following a slightly lower humidity trend earlier in the year, where levels hovered around 81-84% from April through August. This shift not only creates a more vibrant landscape but also signals a transition towards a more humid autumn. Interestingly, the humidity climbs even higher in October, reaching 90%, which suggests that San Miguel’s post-summer months are characterized by a rich, tropical feel as the year wraps up.

September Average Humidity in San Miguel

This chart illustrates the average monthly humidity levels in San Miguel, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%84%81%82%81%81%82%86%90%91%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Miguel

September in San Miguel, Mexico, continues the trend of extreme sun exposure seen throughout the summer months. With a UV Index of 14, the exposure category remains at an alarming extreme, necessitating vigilant sun protection. The burn time is limited to just 10 minutes, highlighting the need for sunscreen, hats, and shade during peak hours. As the season transitions toward October, it’s crucial to remain proactive about sun safety, as the UV Index is poised to drop to 12 but will still warrant caution. For more detailed information and updates, visit San Miguel UV Index.

Maximum UV Index Levels in San Miguel for September

The chart shows the monthly maximum UV Index (UVI) for San Miguel in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec10121415151515141412109
Data source: San Miguel September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in San Miguel

September in San Miguel, Mexico, brings a delightful blend of sunshine and warmth, with an average of 291 hours of glorious sunlight gracing the days. As summer winds down, the light begins to recede from its peak in July and May, where residents enjoyed 331 and 325 hours respectively. By September, the days still bask in ample sunshine, reminiscent of the vibrant summer months, yet hinting at the gentle transition into autumn. Interestingly, the trend showcases that while the sunlight may lessen slightly, it remains abundant compared to the cooler months, suggesting that locals and visitors alike can still relish outdoor activities and the picturesque landscapes of this charming town. 🌞

Monthly Sunshine Duration in San Miguel: September Highlighted

The September sunshine duration represents the total number of hours San Miguel experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec238h276h315h315h325h298h331h317h291h306h292h297h
Data source: San Miguel September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Miguel During September

September in San Miguel, Mexico, presents a notable dip in sunny weather, with only a 15% chance of sunshine. This marks a significant shift from the sunnier months earlier in the year, where February peaks at 64% and March maintains a solid 57%. As summer fades and the rainy season takes hold, the likelihood of clear skies continues to decline, reaching its nadir in September before gradually improving in October at 27%. For sun-seekers, September's added cloud cover may mean fewer bright days, making it a month more suited for enjoying the region's lush landscapes and cultural activities rather than basking in the sun.

Percentage of Sunny Days in September in San Miguel

The chart illustrates the percentage of sunny days in San Miguel throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often San Miguel experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec34%64%57%50%37%9%25%26%15%27%34%59%
Data source: San Miguel September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Miguel in September

In San Miguel, Mexico, the month of September brings a delightful balance of daylight, with approximately 12 hours of sunshine shimmering each day. This month marks a smooth transition from the summer months, where daylight peaked at 13 hours in June and July, gradually tapering off as autumn approaches. The steady 12 hours in September is consistent with the longer days seen in the late spring and early summer, emphasizing the region's gentle shift toward shorter daylight hours as the year draws to a close. As the days grow gradually shorter, September offers a perfect blend of warmth and light, inviting outdoor exploration and vibrant community activities before the shorter autumn days settle in.

Average Daylight Hours in San Miguel for September

The chart illustrates the variation in daylight duration in San Miguel throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 8m11h 32m12h 2m12h 33m12h 59m13h 12m13h 5m12h 42m12h 12m11h 41m11h 14m11h 1m
Data source: San Miguel daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in San Miguel

As September arrives in San Miguel, Mexico, the city experiences a gentle whisper of wind with an average speed of 1.7 m/s (4 mph), marking one of the year's calmer months. This decline is evident as the summer winds recede from a bustling 2.3 m/s (5 mph) in August, transitioning into the more tranquil breezes of fall. Interestingly, while September offers a nice respite from the more vigorous gusts of earlier months, it aligns with a trend of generally mild winds that characterize the latter part of the year. The fluctuations throughout the seasons suggest that September serves as a reflective pause, inviting residents and visitors to embrace the serene atmosphere before the winds pick up again in October.

Average September Wind Speed in San Miguel

The chart displays monthly wind speed patterns in San Miguel, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.32.32.22.01.62.22.31.7 m/s2.12.31.9
Data source: San Miguel September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in San Miguel Compares to Other Months

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 generally warmer and wetter, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 27°C (81°F) and an average of 18°C (65°F). The month receives significant rainfall, totaling 227 mm (8.9 in) over approximately 24 days, resulting in high humidity levels of around 86%. In contrast, January experiences cooler temperatures, with a minimum of 1°C (34°F) and an average of 14°C (57°F), peaking at 28°C (82°F). This month sees much less precipitation, with only 19 mm (0.7 in) occurring over about 5 days, and humidity is slightly higher at 88%. For more detailed information, you can check San Miguel weather in January.

When comparing the weather in September and February, notable differences emerge. September typically experiences a temperature range from a minimum of 10°C (50°F) to a maximum of 27°C (81°F), with an average of 18°C (65°F). It is also characterized by significant rainfall, receiving 227 mm (8.9 in) over approximately 24 days, always accompanied by a high humidity level of 86%. In contrast, February presents a cooler climate with minimum temperatures of 2°C (36°F) and a maximum of 31°C (88°F), while the average temperature hovers around 16°C (60°F). The month is much drier, with only 14 mm (0.5 in) of precipitation occurring over about 4 days, yet it still maintains the same high humidity of 86%. For more detailed information, you can check the weather specifics here: San Miguel weather in February.

In comparing the weather of September and March, it's clear that September tends to be wetter and somewhat warmer overall. September experiences average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 27°C (81°F) and sees significant rainfall, with precipitation totaling 227 mm (8.9 in) over 24 days. In contrast, March features a milder climate with an average temperature of 17°C (62°F), a minimum of 5°C (41°F), and a higher maximum of 30°C (87°F), but with considerably less precipitation, totaling only 23 mm (0.9 in) across 7 days. Humidity levels are also slightly lower in March, at 84%, compared to 86% in September. For a more detailed look at March weather specifics, you can visit San Miguel weather in March.

When comparing the weather in September and April, we see notable differences in temperature and precipitation patterns. September has a milder average temperature of 18°C (65°F), with highs reaching up to 27°C (81°F), and experiences significantly higher rainfall, totaling 227 mm (8.9 in) across 24 days, resulting in a high humidity of 86%. In contrast, April features warmer temperatures, with an average of 19°C (66°F) and peaks of 31°C (88°F), but it enjoys much drier conditions, receiving only 52 mm (2.0 in) of rain over 12 days and lower humidity at 81%. For more details on April weather, check out San Miguel weather in April.

In September, temperatures generally range from a minimum of 10°C (50°F) to a maximum of 27°C (81°F), with an average of 18°C (65°F). The month is characterized by high humidity at 86% and substantial rainfall, with about 227 mm (8.9 in) of precipitation over 24 days. In contrast, May typically sees slightly cooler temperatures, with a minimum of 9°C (48°F), an average of 19°C (67°F), and a higher maximum of 31°C (87°F). While the humidity is lower at 82%, May experiences significantly less rainfall, totaling around 102 mm (4.0 in) over 20 days. For more detailed information, you can visit San Miguel weather in May.

September and June share a similar average temperature of 18°C (65°F), but they differ in both extremes and precipitation levels. In June, the temperatures range from a minimum of 11°C (53°F) to a maximum of 29°C (84°F), which makes it slightly warmer than September, where temperatures fluctuate between 10°C (50°F) and 27°C (81°F). Additionally, September experiences more rainfall, with 227 mm (8.9 in) spread across 24 days, compared to June's 198 mm (7.8 in) over 25 days. Humidity is also higher in September at 86%, while June maintains a slightly lower humidity level of 81%. For more insights into the weather in June, you can check San Miguel weather in June.

In comparing the weather of September and July, both months exhibit a similar temperature range, with minimum temperatures around 10°C (50°F) and average temperatures consistently at 18°C (65°F). However, July tends to be slightly warmer, reaching a maximum of 28°C (83°F) compared to September's peak of 27°C (81°F). Precipitation also varies notably; September experiences significantly higher rainfall at 227 mm (8.9 in) over 24 days, while July sees less, with 122 mm (4.8 in) across 17 days. Humidity is generally higher in September at 86%, compared to July’s 81%. For more detailed insights into the weather patterns, you can check San Miguel weather in July.

In comparing the weather between September and August, it's clear that September tends to be slightly cooler, with a minimum temperature of 10°C (50°F) compared to August's 11°C (51°F). Both months share the same average temperature of 18°C (65°F), but August peaks at a higher maximum temperature of 28°C (82°F), while September reaches a maximum of 27°C (81°F). However, September experiences significantly more precipitation, with 227 mm (8.9 in) over 24 days, while August sees only 138 mm (5.5 in) in 21 days. Additionally, September's humidity is higher at 86%, compared to August's 82%. For more details, you can check San Miguel weather in August.

In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 27°C (81°F), with an average of 18°C (65°F). This month experiences significant rainfall, totaling 227 mm (8.9 in) spread over 24 days, accompanied by high humidity levels of 86%. In contrast, October sees slightly cooler temperatures, with a minimum of 7°C (44°F) and an average of 17°C (64°F), reaching a maximum of 30°C (86°F). Precipitation decreases substantially to 112 mm (4.4 in) over 18 days, and humidity rises slightly to 90%. For more specific insights into October weather, you can check San Miguel weather in October.

September and November present contrasting weather patterns. In September, temperatures range from a mild 10°C (50°F) to a warm maximum of 27°C (81°F), with an average of 18°C (65°F). The month is characterized by high humidity at 86% and significant rainfall, receiving 227 mm (8.9 in) over 24 days. In contrast, November cools down, with temperatures averaging 15°C (60°F), peaking at 28°C (83°F) and dropping to a minimum of 5°C (42°F). Moreover, November sees much less rainfall, accumulating only 40 mm (1.6 in) over just 9 days, while the humidity increases slightly to 91%. For more detailed information on the weather in November, you can check San Miguel weather in November.

September and December present contrasting weather patterns. In September, temperatures fluctuate between a minimum of 10°C (50°F) and a maximum of 27°C (81°F), with an average of 18°C (65°F). This month is characterized by significant rainfall, totaling 227 mm (8.9 in) across 24 days and high humidity levels at 86%. In stark contrast, December experiences a cooler climate with temperatures ranging from 0°C (33°F) to 27°C (80°F), averaging 14°C (58°F). Remarkably, December sees only 13 mm (0.5 in) of precipitation over just 3 days, with humidity slightly higher at 91%. For more details on the weather during this month, check out San Miguel weather in December.

Compare San Miguel's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in San Miguel

As September rolls into San Miguel, residents and visitors alike experience a significant shift in weather patterns compared to the drier summer months. The drop in temperatures brings a refreshing coolness, with daily highs peaking at a comfortable 27°C (81°F) and lows dipping to around 10°C (50°F). However, the month is characterized by high humidity levels and considerable rainfall, accumulating around 227 mm (8.9 in) over approximately 24 days, making it a much wetter month than those preceding it. This unique blend of warmth, moisture, and vibrant greenery sets the stage for stunning landscapes and a rejuvenated atmosphere, inviting those in the region to embrace the beauty of an invigorating, albeit rainy, season. For a deeper understanding of what to expect throughout the year, check out San Miguel Climate.