Last updated: April 22, 2025
September in Cozumel, Mexico is characterized by warm tropical weather, with temperatures ranging from a maximum of 31°C (89°F) to an average of 28°C (83°F), and dipping to a minimum of 25°C (77°F). Visitors can expect to experience a significant amount of rainfall during this month, averaging 137 mm (5.4 in) spread over 21 days, leading to a humidity level of 76% that adds to the tropical feel. While the lush surroundings are replenished by the frequent showers, it's advisable for travelers to be prepared for sudden rain. Overall, September offers a unique blend of vibrant landscapes and humid weather, making it a captivating time to explore the beauty of Cozumel.
September in Cozumel, Mexico, marks a delightful transition into warmth, characterized by minimum temperatures hovering around 25°C (77°F). As the month progresses, the average temperature reaches a pleasant 28°C (83°F), while daytime highs can soar to a max of 31°C (89°F). This trend reflects a gradual rise in warmth compared to the preceding summer months, with September's temperatures being the highest of the year. Ideal for beachgoers and water sports enthusiasts, the island welcomes visitors to embrace the sun and vibrant marine life, all while basking in comfortably warm conditions.
September marks a significant shift in Cozumel's precipitation patterns, with an average of 137 mm (5.4 in) of rainfall spread over 21 days. This is one of the wettest months of the year, as tropical storms often sweep through the region, leading to increased rainfall. The month stands in contrast to the dryer summer months preceding it, where August sees 122 mm (4.8 in) over 17 days. Following September, October peaks with even more rainfall, averaging 242 mm (9.5 in) over 24 days, highlighting the seasonal transition from summer warmth to the heavier rains of fall. As such, September serves as a bridge between the drier summer and the rainy season, signaling to visitors the lush, vibrant landscape that will flourish in the months to come.
As September rolls in, humidity in Cozumel, Mexico, remains steady at 76%, mirroring the consistent levels seen during the summer months. This stability is part of a broader trend, as the island's humidity gradually decreases from the peak summer months of June, July, and August, where it also hovered around 76%. Following September, humidity is expected to rise again as the year cools, with November and December showing increases to 78% and 80% respectively. Overall, Cozumel's climate offers a fairly humid experience year-round, but September serves as a transitional month where humidity remains comfortably consistent, making it an inviting time for travelers.
September in Cozumel, Mexico, boasts a UV Index of 12, categorizing it under the extreme exposure level, with a burn time as short as 10 minutes. This month continues the trend of high UV levels seen throughout the summer, peaking in June with an Index of 14 and dropping slightly as the year transitions into October. It's crucial for visitors and residents alike to take precautions against sun exposure during this period, as the consistent extreme ratings underscore the need for diligent sun safety. As you enjoy the beautiful beaches and outdoor activities in this tropical paradise, be sure to stay informed and protected by checking the details at Cozumel UV Index.
UV Risk Categories
As September unfolds in Cozumel, Mexico, the island basks in an impressive 309 hours of sunshine, perfectly situated between the summer peak and the onset of autumn. This month reflects a trend where daylight gradually begins to wane after the sun-drenched peaks of May with 343 hours and July with 336 hours. The warm weather continues to entice visitors, ensuring that the vibrant beaches remain lively and inviting. Despite a slight dip, September still enjoys abundant sunshine, allowing travelers to relish the breathtaking sunsets and early fall activities. With 301 hours on the horizon in October, the island promises more opportunities for exploration under the welcoming rays of the sun.
September in Cozumel, Mexico, typically sees a 34% chance of sunny weather, making it one of the cloudier months of the year. This decline in sunshine follows the peak of the sunniest periods from March to April, where the likelihood of clear skies hovers around 71% and 61%, respectively. As summer transitions into autumn, the chance of sun dips lower than in the preceding months of July and August, which boast 56% and 51% respectively. Travelers seeking bright days should be mindful of this trend when planning their September getaways, as the chances for sun are notably thinner compared to earlier months.
As September arrives in Cozumel, Mexico, the daylight duration settles at a pleasant 12 hours, offering a perfect balance of sunshine for both beachgoers and adventurers. Following the peak of summer, where daylight stretched to a glorious 13 hours in the preceding months of May, June, and July, September marks a gentle tapering off, akin to nature’s graceful transition into fall. This month of equal sunlight invites visitors to soak in the warm rays of summer while still enjoying the fading light of autumn, all before the daylight dwindles further to 11 hours in October and November. With such a wealth of sunny hours, September in Cozumel is a fantastic time to explore the vibrant marine life and lush landscapes the island has to offer.
As September rolls into Cozumel, Mexico, the gentle breeze becomes a soothing backdrop to the island's vibrant scenery. With an average wind speed of 5.0 m/s (11 mph), September sees a subtle dip in wind intensity compared to the summer months. This transition marks a notable shift from the peak winds of January through April, which hover around 6.5 m/s (15 mph), fostering the lively atmosphere of high season. The cooling trade winds gradually begin to lighten, hinting at the calmness of approaching fall. While July and August experience slightly higher winds, September's gentle gusts create the perfect conditions for leisurely beach days and tranquil excursions, showcasing the island's stunning waters in a more serene light.
The weather in Cozumel 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 Cozumel and find detailed weather information for every month.
In September, the weather is notably warmer, with average temperatures reaching around 28°C (83°F) and maximums soaring up to 31°C (89°F). This month also experiences higher precipitation, totaling 137 mm (5.4 in) over about 21 days, contributing to a humidity level of 76%. In contrast, January offers a milder climate, with average temperatures of 25°C (77°F) and maximums peaking at 28°C (82°F). The rainfall in January is significantly less, totaling 71 mm (2.8 in) over about 13 days, and the humidity experiences a slight uptick to 79%. For more details, you can explore Cozumel weather in January.
In comparing the weather of September and February, September emerges as the warmer and wetter month. With average temperatures reaching up to 28°C (83°F) and a maximum of 31°C (89°F), it is noticeably hotter than February, where temperatures peak at around 28°C (82°F) and average around 25°C (78°F). Additionally, September experiences significant rainfall, with 137 mm (5.4 in) spread over 21 days, compared to just 32 mm (1.3 in) over 11 days in February. Humidity levels are quite similar, hovering around 76% in September and 78% in February, but the clearer skies of February provide a different atmosphere. For more detailed information, you can check this link: Cozumel weather in February.
In September, the weather is typically warmer, with average temperatures reaching up to 28°C (83°F) and maximum temperatures hitting 31°C (89°F). This month experiences significant rainfall, with 137 mm (5.4 in) of precipitation over 21 days, contributing to a humid environment with a consistent humidity level of 76%. In contrast, March features milder conditions, with average temperatures around 26°C (78°F) and a maximum of 28°C (82°F). Precipitation is significantly lower in March, totaling only 30 mm (1.2 in) over just 6 days, while the humidity remains stable at 76%. For more detailed insights, check out Cozumel weather in March.
In comparing the weather between September and April, September tends to be warmer with average temperatures around 28°C (83°F), peaking at a maximum of 31°C (89°F). In contrast, April features slightly cooler temperatures, averaging 26°C (80°F) and reaching a maximum of 28°C (83°F). Additionally, September experiences significantly more rainfall, with 137 mm (5.4 in) over 21 days, while April is much drier, averaging only 38 mm (1.5 in) of precipitation across just 6 days. Both months see a consistent humidity level of 76%, but the increased rainfall in September makes it feel more humid overall. For more specific details about the weather in April, check out Cozumel weather in April.
When comparing the weather in September and May, September tends to be slightly warmer, with average temperatures reaching 28°C (83°F) and maximums hitting 31°C (89°F). In contrast, May has an average temperature of 27°C (81°F) and a maximum of 29°C (84°F). Precipitation is also higher in September, with 137 mm (5.4 in) spread over 21 days, compared to May's 97 mm (3.8 in) over 17 days. Humidity levels are quite similar in both months, with September at 76% and May at 75%. For more details, you can check Cozumel weather in May.
When comparing the weather in September and June, we see some interesting similarities and differences. Both months have a minimum temperature of 25°C (77°F) and an average temperature around 28°C (82°F to 83°F), making them consistently warm. However, September tends to be slightly warmer with a maximum temperature reaching 31°C (89°F), compared to June's maximum of 29°C (85°F). When it comes to precipitation, June is noticeably wetter, with 219 mm (8.6 in) of rain over 19 days, while September sees less rainfall at 137 mm (5.4 in) across 21 days, despite having a higher number of rainy days. Both months maintain a humidity level of 76%, contributing to the tropical feel. For a closer look, you can explore Cozumel weather in June.
In comparing the weather between September and July, both months exhibit similar temperature ranges, with minimums around 25°C (77°F) and average highs of about 28°C (83°F). However, September typically sees a higher maximum temperature of 31°C (89°F) compared to July's peak of 29°C (85°F). Precipitation is significantly greater in September, totaling 137 mm (5.4 in) over 21 days, whereas July experiences only 56 mm (2.2 in) over 12 days. Both months maintain consistent humidity levels at 76%, contributing to the tropical feel. For a more detailed look, you can check Cozumel weather in July.
In comparing the weather between September and August, both months exhibit similar temperature patterns, with average temperatures remaining around 28°C (83°F). However, September experiences slightly warmer minimum and maximum temperatures, with minimums of 25°C (77°F) and maximums reaching 31°C (89°F), compared to August's minimum of 26°C (79°F) and maximum of 30°C (86°F). Additionally, September sees a notable increase in precipitation, with 137 mm (5.4 in) over 21 days, while August has 122 mm (4.8 in) over 17 days. Humidity levels remain consistent at 76% for both months, creating a similarly tropical ambiance. For more details, check out Cozumel weather in August.
In comparing the weather between September and October, September features slightly warmer temperatures, with average highs of 31°C (89°F) compared to October’s maximum of 29°C (85°F). However, October brings increased precipitation, recording 242 mm (9.5 in) over 24 days versus September’s 137 mm (5.4 in) across 21 days. Humidity remains constant at 76% for both months, resulting in a similar muggy feel. Overall, October can be expected to be a bit cooler but wetter as the rainy season continues. For more detailed information, you can check out Cozumel weather in October.
September typically features warmer temperatures, with minimums around 25°C (77°F) and maximums reaching up to 31°C (89°F), while November sees slightly cooler weather, with temperatures ranging from a minimum of 22°C (71°F) to a maximum of 29°C (84°F). In terms of precipitation, September experiences more rainfall, accumulating 137 mm (5.4 in) over 21 days, compared to November's 129 mm (5.1 in) over 16 days. Both months maintain high humidity levels, with September at 76% and November slightly higher at 78%. For a more detailed comparison, you can check out Cozumel weather in November.
In September, the weather is generally warmer, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 31°C (89°F) and an average of 28°C (83°F). The month also experiences higher rainfall, with a total of 137 mm (5.4 in) over 21 days, along with humidity levels around 76%.
In contrast, December brings cooler temperatures, with a minimum of 21°C (70°F) and a maximum of 28°C (83°F), averaging 25°C (78°F). Precipitation decreases significantly to 66 mm (2.6 in) over 15 days, and humidity rises slightly to 80%. For more detailed information, you can check Cozumel weather in December.
September in Cozumel brings a unique blend of warmth and humidity that sets it apart from other months. With average temperatures hovering around 28°C (83°F), the days are often balmy, yet the significant 76% humidity can amplify the heat, making the atmosphere feel more tropical than usual. Notably, September is also characterized by increased rainfall, with 21 days of precipitation contributing to a total of 137 mm—an experience that contrasts sharply with the drier months that precede and follow it. While the allure of Cozumel’s beaches remains, visitors should be prepared for occasional showers and enjoy the lush, vibrant landscape that this month nurtures. For a comprehensive look at what to expect throughout the year, visit Cozumel Climate.