Last updated: April 22, 2025
In September, Matamoros, Mexico experiences a vibrant transition as summer begins to give way to autumn. With maximum temperatures soaring to 34°C (94°F) and an average of 21°C (71°F), the warmth persists, though the minimum can dip to a cool 11°C (52°F). Rainfall is notable, with around 97 mm (3.8 in) spread across 13 days, contributing to the region's lush landscape. The air is often thick with humidity, averaging a sticky 86%, creating a tropical ambiance that's both captivating and challenging for visitors. Whether you enjoy warm sun or the occasional rain shower, September in Matamoros offers a unique blend of climate experiences.
In September, Matamoros experiences a pleasant transition as temperatures begin to cool slightly from the summer heat. The minimum temperature settles at a comfortable 11°C (52°F), while the average climbs to a mild 21°C (71°F). Daytime highs can reach up to 34°C (94°F), showcasing a blend of warmth and the refreshing hint of autumn. Compared to the sweltering peaks of the preceding months, September offers a welcome relief, with temperatures that are not only inviting for outdoor adventures but also reflect a steady decline from the intense summer heat, making it an ideal time to explore the vibrant culture and landscapes of the region.
In September, Matamoros experiences a significant uptick in precipitation, receiving 97 mm (3.8 in) of rain over 13 days. This marked increase is a notable contrast to the drier months preceding it, such as May and April, where rainfall remained below 10 mm. The change heralds the onset of the region’s rainier season, following the already substantial downpours seen in July and August. With nearly double the precipitation of the previous month, September's rains play a crucial role in replenishing local water resources, highlighting a trend of heightened rainfall as summer transitions into fall. This pattern underscores the importance of September as a pivotal month for moisture accumulation in the region.
In September, Matamoros experiences a notable rise in humidity, reaching a peak of 86%. This month marks the transition into the fall season, with humidity levels significantly higher than the preceding months. After a gradual decrease from the highs of summer, September's humidity surpasses even the steamy August conditions at 77%, emphasizing the area's tropical climate. As the year progresses into autumn, humidity remains elevated, with October closely trailing behind at 82%. This trend showcases a characteristic pattern in Matamoros, where the late summer and early autumn months tend to be their most humid, inviting a thick, warm atmosphere that envelops the city.
As summer transitions into autumn, September in Matamoros, Mexico maintains a consistently high UV Index of 13, placing it in the extreme exposure category. This level of UV radiation means that the potential for skin damage remains significant, with a rapid burn time of just 10 minutes. The trend this month reflects the intense conditions observed throughout the previous few months, particularly in June through August, where similar UV levels prevailed. As the days shorten and temperatures begin to cool, it's essential to stay vigilant against the sun's rays even in early fall. Whether you're enjoying outdoor activities or just taking a stroll, ensure you’re adequately protected from the sun’s harsh effects. For more details on UV exposure, visit Matamoros UV Index.
UV Risk Categories
September in Matamoros, Mexico, welcomes visitors with a delightful average of 288 hours of sunshine, bridging the gap between the sweltering summer and the cool embrace of autumn. As the summer months peak in brightness, reaching their zenith in May with an impressive 358 hours, the sun gradually starts to yield to the approaching fall. Although September experiences a decrease from the sun-soaked days of July and August, it still maintains a healthy supply of sunshine, offering plenty of opportunities for outdoor activities while the temperatures remain pleasantly warm. This trend of declining sunlight hours continues into October, but September stands out as a transitional month, blending the lingering glow of summer with the promise of autumn's arrival.
As September rolls into Matamoros, Mexico, the likelihood of sunny weather shows a promising 59% chance. While summer months like July and August experience a dip in sunshine, September marks a noticeable uptick compared to those preceding months. The return of clearer skies, coupled with a significant increase in sunshine probability, signals a favorable shift as the region transitions into autumn. This trend not only makes September an ideal time for enjoying outdoor activities but also hints at an inviting climate ahead, setting the stage for the sunnier months that follow in October and November.
As the summer sun begins to wane, September in Matamoros, Mexico ushers in a gentle transition with 12 hours of daylight. This marks a slight decrease from the peak of 13 hours experienced in July and August, suggesting that longer days are giving way to the cooler embrace of autumn. The month maintains a balanced illumination, reminiscent of spring and early summer months like March and April. As daylight gradually shortens, Matamoros residents can savor the lingering, golden hours, while anticipating the cozy shorter days that follow in October and November. This rhythm of daylight not only enhances the area’s vibrancy but also signals the changing seasons, inviting locals and visitors alike to embrace the natural shifts of their beautiful environment.
In September, Matamoros, Mexico, experiences a gentle breeze with an average wind speed of 2.4 m/s (5 mph), marking a slight decrease from the summer's peak. This trend of modest winds continues from the previous months of July and August, both averaging the same. Interestingly, the spring months showcased more lively breezes, particularly March with 3.5 m/s and June at 3.4 m/s. As the region transitions into fall, the winds remain calm, creating a tranquil atmosphere that complements the picturesque landscapes of this vibrant city. Overall, September signals a return to a more serene wind environment after the brisker days of summer.
The weather in Matamoros 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 Matamoros and find detailed weather information for every month.
In September, the weather in Matamoros is significantly warmer, with average temperatures around 21°C (71°F) and a maximum that can reach up to 34°C (94°F). The month is also characterized by higher humidity levels at 86% and considerable rainfall, totaling 97 mm (3.8 in) over 13 days. In contrast, January brings much cooler temperatures, with an average of 11°C (52°F) and nighttime lows dropping to -4°C (25°F). Additionally, January experiences much lower precipitation, averaging just 4 mm (0.2 in) over a single day and a humidity of 75%. For more detailed information on January weather in Matamoros, you can visit Matamoros weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a mild 11°C (52°F) to a scorching 34°C (94°F), with an average of 21°C (71°F). The month is characterized by higher humidity at 86% and significant precipitation, receiving around 97 mm (3.8 inches) over 13 days. In stark contrast, February experiences a much cooler climate, with temperatures dipping to a minimum of -4°C (25°F) and reaching a maximum of 31°C (87°F), averaging at 14°C (57°F). Rainfall in February is minimal, totaling only 5 mm (0.2 inches) over just 1 day, and the humidity is considerably lower at 65%. For a detailed look at the February weather, you can refer to Matamoros weather in February.
In comparing the weather of September and March, it becomes clear that the two months present contrasting climates. September features a wider temperature range, with nighttime lows at 11°C (52°F) and daytime highs averaging around 21°C (71°F), soaring up to a maximum of 34°C (94°F). Additionally, it is characterized by significant humidity at 86% and considerable precipitation of 97 mm (3.8 in) occurring over 13 days, creating a somewhat muggy atmosphere.
In contrast, March exhibits cooler temperatures with a minimum of 0°C (32°F) and an average of 17°C (63°F), enjoying highs that match September’s maximum of 35°C (94°F). However, it is much drier, with only 6 mm (0.2 in) of precipitation over just 2 days, and humidity levels are considerably lower at 58%. For more details on the specific weather conditions in March, you can refer to Matamoros weather in March.
When comparing the weather between September and April, notable differences emerge in both temperature and precipitation. September experiences a wider range of temperatures, with a minimum of 11°C (52°F) and a maximum of 34°C (94°F), resulting in a warm average of 21°C (71°F). In contrast, April starts cooler with a minimum of 3°C (37°F) but still reaches temperatures similar to September, peaking at 34°C (93°F) with an average close to 21°C (70°F). However, September is marked by significantly higher precipitation, receiving 97 mm (3.8 in) over 13 days, while April is much drier with only 5 mm (0.2 in) in just 1 day. Additionally, September is more humid at 86%, compared to April's 48%. For a more detailed look at April's climate, you can check Matamoros weather in April.
When comparing the weather in September and May, notable differences emerge in temperature, precipitation, and humidity. September typically sees a wider temperature range, with a minimum of 11°C (52°F) and a maximum of 34°C (94°F), while May tends to be warmer overall, averaging between 6°C (43°F) and a high of 38°C (100°F). Additionally, September experiences significantly more rainfall, receiving 97 mm (3.8 in) over about 13 days, compared to May's mere 8 mm (0.3 in) spread over just 2 days. Furthermore, September is characterized by high humidity at 86%, whereas May enjoys a much drier atmosphere with a humidity level of 48%. For a detailed look at May weather, you can visit Matamoros weather in May.
September's weather presents a more varied experience compared to June. The average temperature in September is slightly lower at 21°C (71°F) with higher humidity levels at 86%, making it feel more humid and potentially uncomfortable. Additionally, September sees more rainfall, totaling 97 mm (3.8 in) over about 13 days, creating a wetter atmosphere that contrasts sharply with June's dry conditions, which feature only 26 mm (1.0 in) of precipitation over just 4 days. In June, temperatures are warmer, peaking at 38°C (101°F), contributing to a drier, less humid climate, making it ideal for outdoor activities. For more details on June’s warm conditions, you can check out Matamoros weather in June.
In comparing the weather of September and July, we observe distinct differences in temperature and humidity. September features a wider temperature range with minimums dropping to 11°C (52°F) and maximums peaking at 34°C (94°F), whereas July maintains milder minimums at 15°C (59°F) and slightly higher maximums at 36°C (98°F). Additionally, September experiences higher humidity levels at 86%, compared to July’s 72%, contributing to a more muggy atmosphere. Precipitation is also greater in September, with 97 mm (3.8 in) over 13 days, compared to July's 63 mm (2.5 in) over 12 days. For further details, check out Matamoros weather in July.
In comparing the weather between August and September, we see a noticeable shift in temperature and precipitation patterns. August experiences slightly warmer conditions, with average temperatures around 24°C (76°F) and highs reaching 36°C (97°F), while September cools down a bit with averages at 21°C (71°F) and maximums of 34°C (94°F). Precipitation also increases significantly in September, with 97 mm (3.8 in) recorded over 13 days compared to August's 58 mm (2.3 in) over just 8 days. Additionally, September has higher humidity at 86%, compared to 77% in August, creating a more humid atmosphere as summer transitions into fall. For more detailed insights, you can check Matamoros weather in August.
September and October present a striking contrast in weather patterns. In September, temperatures range from a minimum of 11°C (52°F) to an average of 21°C (71°F), peaking at a scorching 34°C (94°F). This month is also marked by considerable rainfall, with 97 mm (3.8 in) of precipitation spread over 13 days, contributing to a high humidity level of 86%.
In contrast, October sees a significant drop in minimum temperatures, dipping to 1°C (34°F), with an average of 19°C (67°F) and a maximum that remains high at 34°C (93°F). Precipitation drops drastically to 33 mm (1.3 in) over just 6 days, resulting in slightly lower humidity at 82%. For a more detailed look at the weather specifics, visit Matamoros weather in October.
In September, the weather is characterized by significantly warmer temperatures, with daytime highs reaching up to 34°C (94°F) and an average temperature of 21°C (71°F). The month also experiences higher humidity at 86% and considerable rainfall totaling 97 mm (3.8 in) over 13 days. In contrast, November brings a notable drop in temperature, with a minimum of -5°C (24°F) and an average of 16°C (60°F). Precipitation is minimal in November, with only 16 mm (0.6 in) falling over just 3 days, and humidity slightly decreases to 85%. For more detailed information, check out Matamoros weather in November.
September and December showcase stark contrasts in weather. In September, temperatures range from a mild 11°C (52°F) at night to a hot 34°C (94°F) during the day, with an average of 21°C (71°F). The month sees considerable precipitation, totaling 97 mm (3.8 inches) over 13 days, accompanied by high humidity of 86%. In contrast, December experiences a much colder climate, with nighttime lows dipping to -12°C (11°F) and daytime highs reaching 28°C (83°F), averaging 11°C (53°F). Precipitation in December is minimal, at just 19 mm (0.7 inches) over only 2 days, and humidity remains similar at 87%. For more details on December weather, check out Matamoros weather in December.
As September unfolds in Matamoros, the weather takes on a distinct character compared to the preceding summer months. Daytime temperatures can soar up to a warm 34°C (94°F), providing ample sunshine, while the nights cool down pleasantly to around 21°C (71°F). This month also witnesses an increase in humidity levels, often peaking at 86%, resulting in a slightly muggy atmosphere. Rainfall becomes more frequent, with 13 rainy days and a total precipitation of 97 mm (3.8 in), contrasting sharply with the drier stretches earlier in the season. For those seeking to explore the unique climate nuances of Matamoros, visit Matamoros Climate for more insights.