Last updated: April 22, 2025
Experience the vibrant weather of Quintana Roo, Mexico in September, where the average temperature hovers around a warm 28°C (83°F). Expect peaks that soar to a sweltering 37°C (99°F), while the evenings cool down to a comfortable 22°C (72°F). This month, the region receives about 88 mm (3.5 in) of rainfall spread over 18 days, making it a time to embrace the lush surroundings. With an 82% humidity level, the air is thick and tropical, creating an atmosphere that is quintessentially Caribbean. Whether you’re basking in the sun or taking shelter from a refreshing shower, September offers a unique contrast of heat and vibrant greenery that defines this stunning destination.
In September, Quintana Roo continues to bask in the warmth of summer, with temperatures lingering comfortably between 22°C (72°F) and a peak of 37°C (99°F). The average temperature remains steady at 28°C (83°F), a hallmark of this tropical paradise as the region embraces its late-season heat. As the month progresses, the nights remain balmy, echoing the summer's lingering embrace. With such consistently warm temperatures, September invites beachgoers and sun-seekers to enjoy its azure waters and vibrant sunsets, showcasing the region's allure even as it transitions towards the cooler months ahead.
In September, Quintana Roo experiences a notable uptick in rainfall, with an average precipitation of 88 mm (3.5 in) occurring over approximately 18 days. This marks a continuation of the wet season that began in June, where the region saw a significant 165 mm (6.5 in) of rain, followed by a steady decline in July and August, yet still sustaining robust totals. Compared to the earlier months, such as April and May, where rainfall ranged between 32 mm (1.3 in) and 47 mm (1.8 in), September’s figures are substantial, indicating a shift towards more pronounced weather patterns characteristic of late summer and early fall. As the month progresses, this trend paves the way for a transition into October, which typically brings even higher precipitation levels, further enhancing the lush landscapes of this tropical paradise.
September in Quintana Roo, Mexico, bears witness to a subtle rise in humidity, reaching 82%, making it one of the more humid months of the year. This period marks the tail end of the rainy season, where the comfort index often dips due to the combination of warmth and moisture. Following a slight decrease in humidity from April to May, levels show an overall upward trajectory, peaking in November at 84%. The summer months of July and August also experience elevated humidity, hinting at a pattern where late summer transitions into early fall bring increased moisture. As the year progresses into the cooler months, a gradual rise continues, culminating in December's lofty 86%, nurturing the lush landscapes that Quintana Roo is renowned for. In essence, September’s humidity is indicative of a broader climatic rhythm, balancing warmth and moisture in a vibrant coastal paradise.
In September, Quintana Roo experiences a UV Index of 12, placing it in the extreme exposure category with a burn time of just 10 minutes. This trend mirrors the intense UV levels seen throughout the summer months, as July and August both recorded similar findings. The region remains under the grip of strong solar radiation, necessitating diligent sun protection for outdoor enthusiasts. Interestingly, this high UV exposure is expected to taper off in October, with the index slightly declining to 11, reminding us that as the seasons change, so do the sun’s rays. Whether basking on the beaches or exploring the vibrant landscapes, it's essential to stay informed about the UV Index for safe sun exposure. For more information, visit Quintana Roo UV Index.
UV Risk Categories
As summer transitions to fall in Quintana Roo, Mexico, September offers a delightful blend of warmth and sunshine, boasting 299 hours of glorious daylight. This month continues the tradition of vibrant summer weather, though slightly less luminous than the peak of May with 335 hours. Throughout the year, sunshine hours show a clear upward trend from January's 223 hours to an impressive high in May, gradually tapering off into the cooler months. September's generous sunlight is perfect for beachgoers and adventurers alike, contributing to the region's reputation as a year-round paradise. With October closely following at 290 hours, it’s evident that Quintana Roo remains a sun-drenched haven as the autumn months approach.
When planning a trip to Quintana Roo, Mexico, in September, it’s important to note that the likelihood of sunny weather dips to 32%, making it one of the cloudier months of the year. This trend follows a broader pattern observed during the summer, where sunshine becomes less reliable, peaking in the months of February and March at a robust 65% to 70% chance of clear skies. As the calendar moves from the vibrant summer towards autumn, the chances of encountering overcast conditions increase significantly. Therefore, travelers seeking sunny beaches might want to consider visiting earlier in the year for the best odds of sun-soaked adventures.
As summer fades into autumn in Quintana Roo, Mexico, September boasts approximately 12 hours of daylight, maintaining the longer days experienced over the warmer months. This gradual transition marks a slight decrease from the peak of 13 hours in June through August, hinting at the approach of shorter days as the year progresses. Interestingly, the daylight hours in September remain steady, reflecting a consistent rhythm in the region’s tropical climate. As daylight continues to wane into October, locals and visitors alike can revel in the vibrant evenings that follow these sun-filled days, making the most of the enduring warmth before winter draws near.
As summer transitions into fall, the September wind in Quintana Roo, Mexico, maintains a gentle embrace, with an average speed of 2.3 m/s (5 mph). This calmness is consistent with the fading winds of August and marks a warm closing to the high season, as the region experiences some of its lightest breezes of the year. Interestingly, while January through May witness a gradual increase in wind speed, the summer months transition into a more tranquil landscape. As October approaches, the winds are projected to soften further, settling to 1.9 m/s (4 mph), suggesting that September serves as a serene interlude before the cooler months begin to arrive. This pattern not only enhances the tropical ambience cherished by locals and visitors alike but also makes it an ideal time for water activities in the beautiful Caribbean Sea.
The weather in Quintana Roo 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 Quintana Roo and find detailed weather information for every month.
September and January offer contrasting weather experiences. In September, temperatures range from a warm minimum of 22°C (72°F) to an average of 28°C (83°F) and can peak at a hot 37°C (99°F). This month also sees significant precipitation, with 88 mm (3.5 in) over 18 days, resulting in high humidity around 82%. In contrast, January brings milder conditions, featuring a minimum temperature of 12°C (53°F) and an average of 23°C (74°F), with a maximum reaching 36°C (97°F). Precipitation drops dramatically to 24 mm (0.9 in) over just 4 days, and humidity remains relatively stable at 81%. For more detailed insights, check out Quintana Roo weather in January.
September and February present stark contrasts in weather patterns. In September, temperatures range from a minimum of 22°C (72°F) to a scorching maximum of 37°C (99°F), with an average of 28°C (83°F). This month also experiences significant precipitation, with 88 mm (3.5 in) falling over 18 days, accompanied by high humidity levels of 82%. In comparison, February offers a much cooler climate, with minimum temperatures dipping to 10°C (50°F) and a maximum reaching 36°C (96°F). The average temperature is a mild 25°C (78°F), and rainfall is minimal, with only 8 mm (0.3 in) recorded over just 1 day, along with slightly lower humidity at 78%. For more information, you can visit Quintana Roo weather in February.
In comparing the weather between September and March, a distinct difference in temperature and precipitation can be observed. September experiences higher temperatures, with a minimum of 22°C (72°F) and an average of 28°C (83°F), while March is cooler, starting at a minimum of 13°C (55°F) and averaging 26°C (80°F). Both months can reach the same maximum temperature of 37°C (99°F), but September is notable for its significant rainfall, averaging 88 mm (3.5 in) over 18 days, in stark contrast to March, which sees only 7 mm (0.3 in) of precipitation over just 2 days. Additionally, humidity levels are higher in September at 82%, compared to 71% in March, suggesting a more comfortable climate during the latter month. For more details about the weather in March, visit Quintana Roo weather in March.
When comparing the weather between September and April, both months feature similar average temperatures of 28°C (83°F), but their extremes differ significantly. In April, the maximum temperature can soar up to 40°C (105°F), while September sees a maximum of 37°C (99°F). Additionally, September is much wetter, with 88 mm (3.5 in) of precipitation spread over 18 days, compared to April's lighter rainfall of 32 mm (1.3 in) over just 4 days. Humidity levels also tend to be higher in September at 82%, compared to April's 70%. For further details on April weather conditions, you can check out Quintana Roo weather in April.
When comparing the weather in September and May, September tends to be warmer with average temperatures around 28°C (83°F), peaking at 37°C (99°F), while May features a slightly higher average of 29°C (84°F) but reaches a maximum of 39°C (103°F). September experiences higher humidity at 82% and significantly more rainfall, with 88 mm (3.5 in) spread over 18 days, as opposed to May's 47 mm (1.8 in) over just 8 days. This makes September feel more oppressive, whereas May offers a drier and slightly cooler experience. For more detailed information, visit Quintana Roo weather in May.
When comparing the weather in September and June, both months share similar minimum and average temperatures, with lows around 22°C (72°F) and averages reaching 28°C (83°F). However, June tends to be hotter overall, with a maximum temperature peaking at 39°C (102°F), compared to September’s 37°C (99°F). Precipitation is significantly higher in June, with 165 mm (6.5 in) over 17 days, compared to September's 88 mm (3.5 in) over 18 days. Additionally, September's humidity is notably higher at 82%, while June maintains a more comfortable 69%. For a detailed look at June's weather, visit Quintana Roo weather in June.
When comparing the weather in September and July, both months feature similar temperature ranges, with minimums at 22°C (72°F), average highs of 28°C (83°F), and maximum temperatures reaching 37°C (99°F). However, September experiences higher precipitation levels, with 88 mm (3.5 in) spread over 18 days, compared to July's 64 mm (2.5 in) over 15 days. Additionally, the humidity is noticeably higher in September at 82%, whereas July maintains a lower humidity level of 74%. For more detailed information on July weather, you can visit Quintana Roo weather in July.
In comparing the weather between August and September, we can see some notable similarities and slight differences. Both months feature a minimum temperature of 22°C (72°F), an average temperature of 28°C (83°F), and a maximum temperature reaching 37°C (99°F). However, September experiences slightly less precipitation at 88 mm (3.5 in) over 18 days, compared to August, which has 107 mm (4.2 in) over 16 days. Furthermore, September has a marginally higher humidity level at 82%, while August's humidity is at 81%. For more detailed information, you can check Quintana Roo weather in August.
In comparing the weather between September and October, we see a gradual shift towards cooler temperatures and increased rainfall. September boasts a minimum temperature of 22°C (72°F) and an average of 28°C (83°F), peaking at a maximum of 37°C (99°F). The month experiences around 88 mm (3.5 in) of rainfall over 18 days, with humidity levels averaging 82%.
In contrast, October brings a cooler minimum temperature of 16°C (60°F) and a slightly lower average of 27°C (81°F), while the maximum remains close at 36°C (97°F). However, it experiences higher precipitation at 126 mm (4.9 in) over 17 days, with humidity slightly elevated at 83%. Overall, October marks a transition toward more temperate conditions, making it a noteworthy month in terms of weather patterns. For more information, check out the Quintana Roo weather in October.
September and November present contrasting weather patterns. In September, temperatures range from a minimum of 22°C (72°F) to a scorching maximum of 37°C (99°F), with an average temperature of 28°C (83°F). The month is characterized by high humidity at 82% and significant rainfall, with 88 mm (3.5 in) of precipitation spread over 18 days. In contrast, November offers a more moderate climate, with temperatures dropping to a minimum of 14°C (58°F) and peaking at 33°C (93°F), averaging 25°C (77°F). Rainfall is also less frequent, totaling 39 mm (1.6 in) across just 9 days, while humidity slightly increases to 84%. For a detailed look at November weather patterns, visit Quintana Roo weather in November.
In September, the weather is typically warm and humid, with average temperatures hovering around 28°C (83°F) and highs reaching up to 37°C (99°F). The month sees considerable rainfall, with about 88 mm (3.5 in) spread over 18 days, contributing to the high humidity level of 82%. In contrast, December offers a cooler and drier climate, with average temperatures of 24°C (75°F) and a maximum of 34°C (94°F). Rainfall decreases significantly to only 19 mm (0.8 in) over just 5 days, although humidity remains relatively high at 86%. For more detailed information, check out Quintana Roo weather in December.
As the vibrant shores of Quintana Roo transition into September, the weather takes on a unique character. Unlike the hotter, drier summer months, September introduces a more humid atmosphere and a notable increase in precipitation, with rain gracing the region on nearly two-thirds of the days. Temperatures remain high, yet the combination of warmth and humidity creates a lush, tropical environment that is distinctly different from the earlier months. This blend of factors makes September a time of rejuvenation for nature, even as humidity levels peak at an inviting 82%. For those looking to understand the broader climate patterns of this captivating region, detailed insights can be found at Quintana Roo Climate.