Last updated: April 22, 2025
In September, Tulum, Mexico, experiences warm temperatures that contribute to its tropical charm. With a maximum of 32°C (90°F) and a comfortable average of 28°C (83°F), visitors can enjoy pleasant days and enchanting sunsets. However, be prepared for the humid conditions, as humidity levels soar to 82%, creating a sticky atmosphere. The region sees considerable rainfall, with 154 mm (6.1 in) scattered over 23 days, making September one of the wetter months. Whether you’re exploring ancient ruins or lounging on sandy beaches, packing an umbrella is a wise move for those looking to soak in all that Tulum has to offer this season.
In September, Tulum, Mexico, experiences warm tropical temperatures that are characteristic of its late summer season. With minimums hovering around 24°C (76°F) and maximums peaking at 32°C (90°F), the climate remains consistently inviting. The average temperature settles at a balmy 28°C (83°F), making it a perfect time for beach lovers and adventure seekers alike. As the month progresses, the warmth continues to embrace visitors, making September an ideal month to explore Tulum's beautiful coastline and vibrant culture. While temperatures remain high, the increase in humidity may signal the approach of the rainy season, reminding travelers to stay prepared for occasional showers. Overall, September offers an enticing blend of warmth and lush greenery, encouraging unforgettable experiences in this enchanting destination.
September marks a significant transition in Tulum's weather, as the region experiences one of its highest precipitation levels of the year, with 154 mm (6.1 in) of rain over 23 days. This uptick in moisture follows a particularly wet summer, where both June and August saw substantial rainfall, heralding the peak of the rainy season. While the slightly increased precipitation in September can be seen as part of a broader trend, it also lays the groundwork for October's even heavier rainfall. This month is characterized not just by quantity but also frequency, as rain falls on more than two-thirds of the month’s days, emphasizing the importance of preparation for visitors and locals alike. As the humidity rises and storms become more frequent, September truly embodies the essence of Tulum's tropical climate.
In September, Tulum experiences a notable increase in humidity, reaching 82%—a slight rise from August's 81%. This trend suggests a gradual buildup of moisture as the region transitions from summer to fall. Following September, October brings an even higher humidity level at 83%, indicating that Tulum’s tropical climate is firmly established, with a continued trend of rising humidity into November and December, peaking at 86%. Overall, the humidity in Tulum displays a clear pattern of increasing levels toward the end of the year, fostering the lush landscapes and vibrant ecosystems that define this beautiful coastal paradise.
As September rolls into Tulum, Mexico, the UV Index remains high at 12, categorizing the sun exposure as extreme. With a burn time of just 10 minutes, this month continues the trend established over the summer, where high UV levels peaked in June but remained consistently perilous through August and into October. The risk of skin damage is significantly elevated, underscoring the importance of protection during outdoor activities. As you plan your days in the sun, it’s crucial to stay informed about the UV Index and take precautions like wearing sunscreen or seeking shade. For more details on UV levels year-round, check out Tulum UV Index.
UV Risk Categories
September in Tulum, Mexico, offers a delightful balance of sunshine, boasting 298 hours of glorious daylight. As summer fades, the days remain bright and inviting, though slightly less sun-kissed than the peak months of May and July, which shine with over 330 hours. This shift marks the transition into the milder months of autumn, providing a perfect opportunity for visitors to enjoy the vibrant natural beauty and rich culture without the intense heat of high summer. With September's abundant light, travelers can revel in Tulum’s stunning beaches and lush landscapes, making it an ideal time to explore this enchanting destination while still enjoying a generous share of sunshine.
In Tulum, Mexico, September brings a notable decrease in sunny weather, with a 33% chance of sun—one of the lowest probabilities of the year. Following the vibrant summer months, where sunny days lingered around 50%, travelers may find the shift to September's overcast skies a bit surprising. This trend reflects the transition into the rainy season, where humidity rises and cloud cover increases. As autumn approaches, October shows a slight rebound with a 51% chance of sun, hinting that while September might not be ideal for sun-seekers, the weather improves soon after.
In September, Tulum enjoys a delightful 12 hours of daylight, matching the length of August as summer begins to transition into fall. This month marks a shift from the longer daylight hours of late spring and summer months, which basked in up to 13 hours of sunlight. As the year progresses towards October, the daylight gradually decreases, creating a cozy atmosphere perfect for exploring Tulum's stunning beaches and ancient ruins. Overall, the gradual decline in daylight hours reflects the rhythmic interplay of seasons in this vibrant coastal paradise, where nature invites both relaxation and adventure amid its warm, sun-kissed days.
As September rolls into Tulum, Mexico, the gentle breezes signal a transition in the season with an average wind speed of 3.8 m/s (8 mph)—the lightest of the year. Following a steady increase leading up to this month, where winds peaked around 5.0 m/s (11 mph) in April, a softening occurs as summer wanes. This trend of decreasing wind speeds continues into October, reaching its lowest point at 3.0 m/s (7 mph). The tranquil atmosphere invites visitors to enjoy leisurely strolls along the beach, while the slightly calmer winds create the perfect backdrop for indulging in Tulum's vibrant culture and stunning landscapes.
The weather in Tulum 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 Tulum and find detailed weather information for every month.
September and January exhibit contrasting weather patterns. In September, temperatures are typically warmer, with averages around 28°C (83°F), peaking at 32°C (90°F), while January presents a cooler climate, boasting average temperatures of 24°C (75°F) and a maximum of 30°C (86°F). Precipitation is notably higher in September, with 154 mm (6.1 in) over 23 days, compared to a much drier January with only 55 mm (2.2 in) occurring over 11 days. Additionally, humidity levels remain relatively high in both months, slightly dipping from 82% in September to 81% in January. For more specific information, check out Tulum weather in January.
September and February present contrasting weather patterns. In September, temperatures are notably warmer, with minimums around 24°C (76°F) and maximums reaching up to 32°C (90°F), while averaging about 28°C (83°F). This month also experiences significant rainfall, totaling 154 mm (6.1 inches) over 23 days, contributing to a high humidity level of 82%. In contrast, February offers cooler and drier conditions, with minimum temperatures dropping to 16°C (61°F) and maximums peaking at 29°C (85°F), leading to an average of 25°C (77°F). Precipitation is reduced to just 33 mm (1.3 inches) over only 10 days, resulting in slightly lower humidity at 78%. For more detailed insights on February weather, you can check out Tulum weather in February.
In comparing the weather between September and March, September tends to be much warmer and more humid. With average temperatures reaching 28°C (83°F) and maximums soaring to 32°C (90°F), it contrasts sharply with March's milder average of 25°C (78°F) and a maximum of 29°C (85°F). Additionally, September experiences significantly higher precipitation, totaling 154 mm (6.1 in) over 23 rainy days, compared to March’s 29 mm (1.1 in) spread across just 7 days. This leads to a higher humidity level in September at 82%, while March enjoys a more comfortable 71%. For a closer look at the weather specifics during March, visit Tulum weather in March.
Comparing the weather in September and April reveals notable differences. September tends to be warmer, with average temperatures around 28°C (83°F) and maximums reaching 32°C (90°F), while April's average is slightly lower at 27°C (80°F) and max temperatures peaking at 31°C (88°F). Additionally, September experiences significantly higher precipitation, with 154 mm (6.1 in) over 23 days, compared to April's milder 35 mm (1.4 in) across just 7 days. Humidity levels are also higher in September, averaging 82%, while April sees a more comfortable 70%. For more details, you can check Tulum weather in April.
September and May exhibit notable differences in weather patterns. September tends to be warmer with average temperatures reaching 28°C (83°F), while May is slightly cooler, averaging 27°C (81°F). Rainfall is more prevalent in September, with 154 mm (6.1 in) over 23 days, compared to May's 92 mm (3.6 in) across 19 days. Additionally, humidity levels are higher in September at 82%, making the atmosphere feel muggier than in May, where humidity stands at a more comfortable 68%. For more information on May weather in Tulum, you can check out Tulum weather in May.
In comparing the weather of September and June, both months see a similar temperature range, with minimums around 24°C and averages close to 28°C. However, June is slightly cooler at its maximum with 31°C compared to September's peak of 32°C. Notably, September experiences higher humidity levels at 82%, whereas June has a more comfortable 69%. Additionally, September has a higher precipitation rate of 154 mm over 23 days, compared to June's 253 mm over 21 days, making June generally wetter despite the fewer rain days. For more details, you can check Tulum weather in June.
In comparing the weather of September and July, both months have similar temperature ranges, with September experiencing a minimum of 24°C (76°F), an average of 28°C (83°F), and a maximum of 32°C (90°F), closely mirroring July's figures of a minimum of 24°C (76°F), an average of 28°C (83°F), and a slightly lower maximum of 31°C (88°F). However, September is notably wetter, recording 154 mm (6.1 in) of precipitation over 23 days, whereas July sees significantly less rainfall at 68 mm (2.7 in) over just 15 days. Additionally, the humidity in September is higher at 82%, compared to 74% in July, contributing to a more muggy atmosphere during the former month. For a more detailed look at July weather, you can visit Tulum weather in July.
In comparing the weather of September to that of August, both months maintain similar temperature ranges, with September averaging a minimum of 24°C (76°F), a comfortable average of 28°C (83°F), and a maximum of 32°C (90°F). However, September is slightly wetter, receiving 154 mm (6.1 in) of precipitation over 23 days, compared to August’s 130 mm (5.1 in) over 21 days. Additionally, September has a marginally higher humidity level of 82%, while August sits at 81%. This slight increase in rainfall and humidity in September may lead to a more muggy feel compared to the previous month. For more detailed insights, you can check Tulum weather in August.
In comparing the weather of September and October, it's clear that both months are characterized by warm temperatures and high humidity. September experiences slightly higher average temperatures, with a minimum of 24°C (76°F) and a maximum of 32°C (90°F), while October sees a reduction in the minimum temperature to 20°C (68°F), though the maximum remains close at 31°C (88°F). Rainfall increases in October, with total precipitation reaching 207 mm (8.2 in) over 24 days, compared to September's 154 mm (6.1 in) over 23 days. Humidity levels remain comparable, with September at 82% and October slightly higher at 83%. For more details on the weather in October, you can visit Tulum weather in October.
In September, the weather is notably warmer, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 32°C (90°F) and an average of 28°C (83°F). The month is characterized by significant rainfall, receiving 154 mm (6.1 in) over 23 days, contributing to high humidity levels of 82%.
In contrast, November experiences cooler temperatures, with a minimum of 19°C (67°F), an average of 25°C (78°F), and a maximum of 30°C (87°F). This month sees less precipitation at 97 mm (3.8 in) across 14 days, and the humidity remains relatively high at 84%. For those looking for more detailed information about the climate, you can check Tulum weather in November.
September and December exhibit contrasting weather patterns. In September, temperatures typically range from a minimum of 24°C (76°F) to a maximum of 32°C (90°F), with an average of 28°C (83°F). This month experiences significant rainfall, accumulating 154 mm (6.1 in) over 23 days, and humidity remains high at 82%.
In contrast, December sees milder weather with lower temperatures, ranging from a minimum of 17°C (63°F) to a maximum of 29°C (85°F) and an average of 25°C (77°F). Precipitation is significantly reduced, with only 53 mm (2.1 in) over 13 days, and humidity rises slightly to 86%. For a more detailed look at the climate, you can check Tulum weather in December.
As September rolls into Tulum, visitors can expect warm and humid weather, with temperatures averaging around 28°C (83°F), peaking at a sultry 32°C (90°F). This month stands out with its heightened chance of rain, averaging 154 mm over approximately 23 days, making it one of the wetter months of the year. The high humidity levels of 82% can make the sultry heat feel more intense, setting September apart from the drier and cooler months. Those planning a trip should be prepared for both sunshine and showers, offering a unique glimpse into Tulum's lush landscape during the rainy season. For a more comprehensive understanding of Tulum's weather patterns throughout the year, check out Tulum Climate.