Last updated: April 22, 2025
September in Mérida, Mexico offers a warm and humid experience, with maximum temperatures reaching 36°C (97°F) and an average of 28°C (83°F). Nights provide a respite as temperatures dip to a minimum of 22°C (72°F). Rainfall is notable this month, accumulating to 102 mm (4.0 in) over approximately 18 days, contributing to the region's lush greenery. With humidity levels around 82%, visitors can expect a tropical climate that's both vibrant and challenging, making it essential to stay hydrated and prepared for unexpected showers.
In September, Merida, Mexico, experiences warm and inviting temperatures, maintaining a comfortable average of 28°C (83°F) throughout the month. With nighttime lows around 22°C (72°F), the evenings remain pleasant, inviting outdoor exploration. As the days unfold, temperatures can peak at a balmy 36°C (97°F), typical of the lingering summer heat. Notably, September aligns closely with the preceding months of August and July, which also feature comparable temperature ranges. This consistency showcases Merida's tropical climate, where the warmth invites visitors to soak in the vibrant culture while enjoying the balmy weather.
September in Mérida, Mexico, marks a significant peak in the rainy season, bringing 102 mm (approximately 4.0 in) of precipitation over 18 days. This substantial rainfall, while slightly less than August’s 107 mm, underscores the tail end of the humid summer, contributing to the lush landscape of the Yucatán Peninsula. The consistent rainfall pattern seen throughout the summer months — starting at 47 mm in May and escalating to 151 mm in June — highlights a trend of increasing precipitation, characteristic of tropical climates. As the vibrant green of the region thrives, September’s showers set the stage for a transition into the drier months ahead.
In September, Merida experiences a slight uptick in humidity, reaching 82%, which reflects the city's characteristic tropical climate. Notably, this month marks a continuation of the high humidity trend established in August at 81%, setting the stage for the even more humid months ahead. As the year progresses, humidity levels in Merida generally rise, with October peaking at 83% and November reaching 84%. This gradual increase underscores the transition from the dry heat of earlier months to the more humid conditions typical of the later part of the year, ultimately enhancing the lush surroundings that define this vibrant region.
In September, Merida, Mexico, continues to experience a significant UV Index of 12, categorized as extreme and requiring a cautious approach to sun exposure, with a burn time of just 10 minutes. This figure follows a trend seen throughout the summer months, where the UV Index consistently hovers around the extreme range of 12 to 13. As the season transitions into October, the UV Index remains high at 11, making it crucial for residents and visitors alike to protect their skin during outdoor activities. With this persistent intensity, being informed about the UV levels is essential—discover more about the UV Index in Merida at Merida UV Index.
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As September rolls into Merida, the sun continues to shine brightly, contributing 312 hours of golden daylight to the month. This consistent warmth follows a robust summer, where both July and August basked in their peak sunshine hours of 343 and 335 respectively. It's clear that as the year transitions from the sweltering heat of summer to the cooler embrace of autumn, September maintains a healthy balance of sunlight, outperforming the earlier months like January and February, which start the year with 224 and 275 hours. With each month showcasing a trend of increasing sunlight as we approach the fall, Merida offers an inviting backdrop for those seeking a blessed blend of warmth and beauty even as the seasons change.
September in Mérida, Mexico, marks a notable dip in the likelihood of sunny weather, with only a 34% chance of sunshine gracing the skies. This trend reflects a marked decline in sunny days compared to the preceding months, where the chances hover much higher—peaking at 75% in March and 68% in February and December. As the rainy season progresses, the clouds tend to dominate, nudging the sunshine to the sidelines. This seasonal shift makes fall the ideal time to enjoy the vibrant culture of Mérida under the occasional, yet fleeting, rays of sunlight, a sharp contrast to the summer months where the sun often takes center stage.
In September, Merida, Mexico enjoys 12 hours of daylight, continuing the trend of abundant light that peaks in the summer months. As the year transitions from the intense heat of summer to the cooler embrace of autumn, daylight duration remains consistent, paralleling August's 12 hours. This stability sets the stage for a gradual decline in sunlight as October approaches, where daylight will once again shift to 11 hours. Overall, September stands at a sweet spot, where the balance of sunlit hours provides an ideal opportunity for both exploration and relaxation in this vibrant city.
In September, the winds in Mérida, Mexico take a gentle turn, with an average speed of 2.4 m/s (5 mph), marking the start of a noticeable decline from the earlier months. This soft breeze hints at the transition into the cooler fall months, as it follows a pattern of reducing wind speeds seen since the peak in March at 3.6 m/s (8 mph). As summer fades and autumn approaches, the calming winds create a serene atmosphere, inviting residents and visitors alike to enjoy the city’s vibrant culture and outdoor spaces in a more tranquil setting. Although September's breezes are lighter, they carry with them the promise of change and new experiences that the coming months will bring.
The weather in Merida 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 Merida and find detailed weather information for every month.
September and January present quite contrasting weather patterns. In September, temperatures often range from a minimum of 22°C (72°F) to a maximum of 36°C (97°F), averaging around 28°C (83°F). This month also experiences considerable rainfall, with 102 mm (4.0 in) over 18 days, contributing to a high humidity level of 82%. In stark contrast, January features cooler temperatures, with a minimum of 12°C (54°F) and a maximum of 34°C (93°F), averaging 23°C (74°F). Precipitation is significantly reduced, totaling only 25 mm (1.0 in) over just 3 days, and humidity remains relatively low at 81%. For more details about January weather in Merida, visit Merida weather in January.
September and February present contrasting weather conditions. In September, temperatures range from a minimum of 22°C (72°F) to a maximum of 36°C (97°F), with an average of 28°C (83°F). This month experiences significant rainfall, with 102 mm (4.0 in) of precipitation over 18 days, leading to high humidity levels at 82%. In contrast, February offers a cooler climate, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 36°C (98°F) and an average of 25°C (77°F). Notably, February has much lower precipitation, totaling only 10 mm (0.4 in) across just 1 day, and a slightly lower humidity of 78%. For more details on February weather, you can visit Merida weather in February.
In September, the weather is characterized by warm temperatures with a minimum of 22°C (72°F) and an average of 28°C (83°F), peaking at a high of 36°C (97°F). This month also sees notable rainfall, with 102 mm (4.0 in) of precipitation over 18 days and relatively high humidity at 82%. In contrast, March offers a cooler climate with a minimum temperature of 13°C (56°F) and an average of 26°C (80°F), reaching a maximum of 38°C (101°F). The month is much drier, featuring only 6 mm (0.2 in) of rain over just one day and lower humidity at 71%. For more details on the pleasant weather conditions in March, check out Merida weather in March.
In September, the weather is typically warm, with average temperatures around 28°C (83°F) and a notable range from a minimum of 22°C (72°F) to a maximum of 36°C (97°F). This month also experiences significant rainfall, with precipitation amounting to 102 mm (4.0 in) over 18 days, contributing to a high humidity level of 82%. In contrast, April boasts similar average temperatures of 28°C (83°F), but with a broader maximum temperature reaching up to 40°C (105°F). Rain is less frequent in April, with only 29 mm (1.2 in) of precipitation over just 4 days, and the humidity level is slightly lower at 70%. For those interested in exploring April's climate in more detail, visit Merida weather in April.
When comparing the weather in September and May, several key differences emerge. September tends to have more humidity, averaging 82%, and features a broader range of temperatures, with minimums around 22°C (72°F) and maximums reaching up to 36°C (97°F). In contrast, May offers slightly cooler minimum temperatures at 19°C (66°F) and can soar to maximums of 39°C (103°F), but with lower average humidity at 68%. Additionally, September experiences more rainfall, with precipitation of 102 mm (4.0 in) over 18 days, while May sees significantly less rainfall at 47 mm (1.9 in) over just 7 days. For those specifically interested in May's climate, you can find more details here: Merida weather in May.
In comparing the weather of September and June, both months exhibit warm average temperatures, hovering around 28°C (83°F). However, June tends to be slightly hotter, with maximum temperatures reaching up to 39°C (102°F), compared to September's peak of 36°C (97°F). Additionally, June experiences a higher amount of rainfall, with 151 mm (6.0 in) over 17 days, while September has 102 mm (4.0 in) spread across 18 days. Humidity levels also differ, as September boasts a higher humidity of 82%, in contrast to June's 69%. For more detailed insights on June weather, you can visit Merida weather in June.
In comparing the weather of September and July, we see some notable differences. Both months feature similar average temperatures, with September reaching a minimum of 22°C (72°F) and a maximum of 36°C (97°F), while July has slightly warmer lows at 23°C (73°F) and highs at 37°C (98°F). Precipitation is more frequent in September, with 102 mm (4.0 in) falling over 18 days, compared to July's 71 mm (2.8 in) over 14 days. Additionally, September experiences higher humidity at 82%, while July's humidity is around 74%. For a closer look at July's weather specifics, check out Merida weather in July.
In comparing the weather between August and September, we see that both months share similar temperature ranges, with a minimum of 22°C (72°F), an average of 28°C (83°F), and a maximum of 36°C (97°F). However, September experiences slightly less precipitation, receiving 102 mm (4.0 in) compared to August's 107 mm (4.2 in). Both months also have the same number of rainy days at 18, yet September has a marginally higher humidity level at 82%, while August sits at 81%. For more details, you can check Merida weather in August.
In September, the weather is typically warmer with an average temperature of 28°C (83°F) and a higher minimum of 22°C (72°F), while October sees a slight drop with an average of 27°C (81°F) and a minimum of 16°C (61°F). Both months experience similar maximum temperatures, peaking at 36°C (97°F) in September and 36°C (96°F) in October. Rainfall increases slightly in October, with 117 mm (4.6 in) over 17 days compared to September's 102 mm (4.0 in) over 18 days. Humidity remains relatively high in both months, at 82% in September and 83% in October. For more detailed information, check out Merida weather in October.
September weather is characterized by warmer temperatures, with minimums around 22°C (72°F) and maximums reaching as high as 36°C (97°F). The month experiences significant precipitation, with an average of 102 mm (4.0 in) spread over 18 days, coupled with high humidity at 82%. In contrast, November sees a noticeable drop in temperatures, with minimums of 14°C (57°F) and maximums peaking at 33°C (92°F). This month also experiences less rainfall, totaling only 39 mm (1.5 in) over 8 days, while humidity slightly increases to 84%. For a more detailed look, you can check out Merida weather in November.
In September, Merida experiences significantly warmer temperatures, with average highs reaching up to 36°C (97°F) and a humidity level of 82%. The month sees frequent rainfall, accumulating around 102 mm over approximately 18 days, creating a humid and tropical atmosphere. In contrast, December brings much cooler weather, featuring average highs of 34°C (94°F) and lower average temperatures, with minimums dropping to 12°C (54°F). This month enjoys substantially less rainfall, with only 17 mm occurring over just 4 days, while humidity slightly increases to 86%. For those interested in more details, check out Merida weather in December.
September in Merida brings a blend of warm temperatures and high humidity, setting it apart from other months. With an average of 28°C (83°F), the days can feel quite sultry, especially as temperatures can peak at 36°C (97°F). This month also experiences significant rainfall, averaging 102 mm over 18 days, making it one of the wetter months. The elevated humidity levels, around 82%, add to the tropical feel, encouraging visitors to seek respite in the shade or enjoy the refreshing local cuisine. For a deeper dive into Merida's weather patterns throughout the year, check out Merida Climate.