Last updated: April 22, 2025
In September, the weather in Yucatan, Mexico presents a vibrant mix of heat and humidity. With maximum temperatures soaring to 37°C (99°F) and an average of 28°C (83°F), the region can feel quite intense. Nights bring some respite, cooling down to a minimum of 23°C (73°F). The month is marked by significant rainfall, with 232 mm (9.1 in) of precipitation over 23 days, contributing to a humid environment with 86% humidity. This dynamic climate creates a lush backdrop for the stunning landscapes and rich culture of the Yucatan Peninsula during this time of year.
In September, Yucatan, Mexico experiences a transition that hints at the cooler months ahead. With minimum temperatures averaging around 23°C (73°F), visitors can still enjoy warm evenings, while the average temperature holds steady at 28°C (83°F). The maximum temperatures, peaking at 37°C (99°F), indicate that the summer heat lingers, but the gradual decline from the sweltering highs of prior months is palpable. Overall, September serves as a bridge, offering a pleasant mix of summer warmth with the promise of autumn's arrival, making it an ideal time for travelers to explore Yucatan's vibrant culture and stunning landscapes.
In September, Yucatan experiences a significant surge in precipitation, with an impressive 232 mm (9.1 in) of rain typically falling over about 23 days. This marks a notable increase compared to the preceding months, establishing September as one of the wettest times of the year. The combination of tropical weather systems and the shift from the dry season to more humid conditions contributes to this elevated rainfall, making it a vital time for the region’s ecosystems. As the rainy season reaches its peak in September, lush greenery flourishes, and local rivers swell, creating a vibrant landscape that underscores the dynamic weather patterns of the Yucatan Peninsula.
September in Yucatán, Mexico, ushers in a notable shift in humidity levels, marked by an increase to 86%. This rise continues a trend seen through the summer months, where humidity fluctuated between 81% to 82% in July and August. As the region transitions into the fall, the humidity steadily climbs, leading to even higher percentages in the following months, peaking at 91% in November and December. The September humidity, while elevated, reflects the tropical nature of Yucatán, setting the stage for the lush landscapes and vibrant ecosystems that thrive in this sultry climate.
In September, the UV Index in Yucatan peaks at 13, maintaining its status in the extreme exposure category, which means a burn time of just 10 minutes. This trend mirrors the preceding months of June, July, and August, where the UV Index also remained at 13, emphasizing the region's reliance on sun protection during these sweltering summer days. As the year transitions into October, we see a slight decrease to 11, but the importance of vigilance against harmful UV rays remains paramount. With such high UV levels consistently in play, it's essential for both locals and visitors to stay informed about sun safety measures. For more detailed insights, explore the Yucatan UV Index.
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September in Yucatán, Mexico, offers a delightful balance of warmth and sunshine, with an impressive 291 hours of bright daylight. This month marks a gentle transition into autumn, following the summer peak in July, which boasts the highest sun exposure at 324 hours. As the rainy season begins to wane, September shines brightly, just a shade less than the sun-drenched late summer months of August (317 hours). Despite a slight reduction, the sun remains a significant presence, setting the stage for beautiful days filled with exploration and relaxation. This trend of abundant sunshine continues into October, which invites visitors to enjoy the region's stunning natural beauty and rich culture amidst pleasant weather.
September in Yucatan, Mexico, experiences a notable dip in sunny weather, with only a 23% chance of sunshine. This trend marks a shift from the previous months, where the likelihood of sun fluctuates more favorably, peaking at 65% in March. Following the vibrant summer, which holds a high of 41% in August, September tends to embrace the onset of rainy season, leading to a stark contrast. As the year progresses towards October, the chance of sun rises slightly to 36%, indicating an upward trend in sunshine following the humid conditions of September. Overall, September stands out as a month where cloudy skies and rain may take the spotlight, setting a different tone in Yucatan's weather narrative.
In September, Yucatán enjoys 12 hours of daylight, continuing a trend seen throughout the summer months. This month marks a gentle transition, as daylight begins to fade slightly from the peak of summer, where June through August bask in 13 hours of sun. Following September, daylight durations gradually decrease, dipping to 11 hours in October and November, and ultimately reaching a low of 10 hours in December. This rhythmic dance of daylight showcases Yucatán's tropical climate, where the variance remains subtly balanced throughout the year, inviting residents and visitors alike to revel in its warm, sun-kissed days.
As September sweeps across Yucatán, the wind begins to regain its gentle presence after a notably calm summer. With an average speed of 2.3 m/s (5 mph), this month marks a slight increase from the languid breezes of July and August, which fell to their lowest points of the year at 1.8 m/s and 1.9 m/s, respectively. The gradual uptick in wind speed hints at the onset of the fall season, providing a refreshing respite as temperatures remain warm. Compared to the earlier months, September offers a comfortable transition, suggesting a shift towards more invigorating winds in the following months, as seen with October's increase to 2.8 m/s. Overall, September serves as a bridge, renewing the air and enhancing the vibrant atmosphere of this stunning region.
The weather in Yucatan 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 Yucatan and find detailed weather information for every month.
In September, the weather is significantly warmer, with temperatures ranging from a minimum of 23°C (73°F) to a sweltering maximum of 37°C (99°F) and an average of 28°C (83°F). The month is also characterized by high humidity at 86% and frequent rainfall, accumulating 232 mm (9.1 in) over 23 days. In contrast, January brings milder temperatures with a minimum of 15°C (59°F) and an average of 23°C (74°F), although it can still peak at 37°C (99°F). Precipitation is much lower in January, totaling just 26 mm (1.0 in) spread over only 5 days, and humidity is slightly higher at 88%. For more details on January weather, you can visit Yucatan weather in January.
September and February exhibit contrasting weather patterns. In September, temperatures range from a minimum of 23°C (73°F) to a maximum of 37°C (99°F) with an average of 28°C (83°F). However, it is also the wettest month, experiencing 232 mm (9.1 in) of precipitation over 23 days, leading to high humidity levels of 86%. In contrast, February is much drier, with only 26 mm (1.0 in) of rain falling in just 3 days. The temperatures in February range from a cooler minimum of 12°C (54°F) to a high of 39°C (103°F), with an average of 24°C (76°F), while maintaining the same humidity level of 86%. For more details on weather conditions in February, you can visit Yucatan weather in February.
In comparing the weather of September and March, September typically experiences higher humidity and frequent rainfall, with average temperatures ranging from a mild 23°C (73°F) to a hot 37°C (99°F). In contrast, March boasts slightly cooler temperatures with a minimum of 15°C (60°F) and a maximum of 40°C (104°F), but it sees significantly less precipitation, averaging only 20 mm (0.8 in) across just three days. This makes March noticeably drier and more comfortable, despite the potential for high temperatures. For more insights into the weather during this month, you can check out Yucatan weather in March.
In September, the weather is characterized by consistently warm temperatures, with minimums around 23°C (73°F) and maximums reaching up to 37°C (99°F). This month also sees significant rainfall, averaging 232 mm (9.1 in) over 23 days, and maintaining a high humidity level of 86%. In contrast, April experiences slightly cooler minimum temperatures at 19°C (66°F) and can soar to maximum temperatures of 43°C (110°F). Precipitation is minimal during this time, with only 17 mm (0.7 in) over just 4 days, and a lower humidity level of 81%. For more detailed information on April weather, you can visit Yucatan weather in April.
September and May present distinct weather patterns. September generally has a warm range with minimum temperatures around 23°C (73°F) and averages reaching up to 28°C (83°F), but can peak at 37°C (99°F). It is also marked by significant rainfall, with 232 mm (9.1 in) over 23 days, resulting in high humidity levels of 86%. In contrast, May sees slightly cooler minimum temperatures at 21°C (71°F) and a higher average of 30°C (86°F), peaking at 41°C (106°F). Precipitation in May is much lower at 47 mm (1.9 in) across only 9 days, leading to a slightly drier atmosphere with 82% humidity. For more detailed insights, you can check Yucatan weather in May.
In comparing the weather patterns of September and June, we observe some interesting similarities and differences. Both months experience warm temperatures, with September averaging 28°C (83°F) and June slightly warmer at an average of 29°C (84°F). June tends to have a higher maximum temperature, reaching up to 39°C (103°F), compared to September's peak of 37°C (99°F). Precipitation is more significant in September, with 232 mm (9.1 in) of rainfall over 23 days, compared to June's 178 mm (7.0 in) across 22 days. Humidity levels in September are also higher at 86%, while June has a slightly lower humidity of 81%. For a closer look at the typical weather conditions for June, you can check Yucatan weather in June.
When comparing the weather in September to July, we see some notable differences. September experiences slightly cooler temperatures, with an average of 28°C (83°F) compared to July's average of 29°C (84°F), although both months can reach high maximums, with July peaking at 38°C (100°F) and September at 37°C (99°F). Precipitation levels are also higher in September, with 232 mm (9.1 in) over 23 days, surpassing July's 195 mm (7.7 in) over 20 days. Additionally, September has a higher humidity level at 86% compared to July's 81%, making it feel more muggy. For specific insights into July weather, you can check Yucatan weather in July.
In August, the weather tends to be slightly hotter with an average temperature of 29°C (84°F), peaking at a maximum of 38°C (100°F), compared to September's average of 28°C (83°F) and maximum of 37°C (99°F). Both months experience a high level of humidity, with September being slightly more humid at 86% versus August's 82%. Precipitation is more frequent in September, totaling 232 mm (9.1 in) over 23 days, compared to August's 180 mm (7.1 in) over the same number of days. For more detailed insights, you can explore Yucatan weather in August.
In comparing the weather between September and October, September tends to be hotter with maximum temperatures peaking at 37°C (99°F), while October sees a slight decrease with maximums around 36°C (98°F). Both months share a similar average temperature of 28°C (82°F) to 28°C (83°F), but September is characterized by higher humidity levels at 86% compared to October's 90%. Additionally, September experiences significantly more rainfall, with 232 mm (9.1 in) over 23 days, whereas October has only 111 mm (4.4 in) of precipitation across 18 days. For more on October's weather specifics, you can check Yucatan weather in October.
September and November present a striking contrast in weather conditions. In September, temperatures are higher, with a minimum of 23°C (73°F), an average of 28°C (83°F), and a maximum reaching 37°C (99°F). It is also a particularly wet month, receiving 232 mm (9.1 in) of precipitation over 23 days, combined with high humidity at 86%. In stark contrast, November sees cooler temperatures, with a minimum of 13°C (56°F), an average of 25°C (78°F), and a maximum of 34°C (93°F). Precipitation drops significantly to 46 mm (1.8 in) over just 8 days, while humidity increases slightly to 91%. For a deeper look into what to expect, you can check out this resource: Yucatan weather in November.
In September, the weather is hot and humid, with average temperatures around 28°C (83°F) and maximum highs reaching up to 37°C (99°F). This month sees significant rainfall, with about 232 mm (9.1 in) of precipitation spread over 23 days, making it a notably wet month with humidity levels averaging 86%.
In contrast, December offers a much milder climate, where temperatures drop to an average of 24°C (75°F), with minimums around 13°C (56°F) and maximums reaching 35°C (96°F). Precipitation is substantially lower during this month, totaling just 14 mm (0.5 in) over 2 days, and the humidity rises slightly to 91%. For more detailed information, you can check Yucatan weather in December.
September in Yucatan brings a distinct blend of warm temperatures and high humidity, making it notably different from the drier months that precede it. With frequent rain showers—often resulting in over two-thirds of the month being wet—it’s a time when the landscape flourishes. Travelers can expect both the heat and occasional cooling relief from the rains, transforming the environment into a vibrant tropical paradise. As the average temperature sits comfortably around 28°C, this month is a great time to experience the lush beauty of Yucatan, albeit with the need for a thoughtful approach to planning outdoor activities. For a deeper understanding of what to expect throughout the year, check out Yucatan Climate.