Last updated: April 22, 2025
In September, Celestun, Mexico experiences a warm tropical climate characterized by a maximum temperature reaching 32°C (90°F) and a pleasant average of 28°C (83°F). The minimum temperature hovers around 25°C (77°F), providing a comfortable atmosphere for visitors. However, this month also sees a notable precipitation amount of 44 mm (1.7 in), with rainfall occurring across 9 days, contributing to a humidity level of 75%. This combination of warmth and moisture creates a lush environment, perfect for exploring the natural beauty and unique ecosystems of the region.
In Celestun, Mexico, September brings a delightful warmth that reflects the tail end of summer, with temperatures remaining quite stable. The month sees a minimum temperature of 25°C (77°F) and an average around 28°C (83°F), peaking at a comfortable 32°C (90°F). This consistency in warmth, much like the preceding months, sets a welcoming atmosphere for visitors eager to explore the region’s vibrant natural beauty. As the rainy season hints at arrival, the warm temperatures, combined with occasional showers, provide a refreshing contrast, making September an ideal time to experience the lush landscapes and diverse wildlife of Celestun.
In September, Celestun experiences a notable increase in precipitation, with 44 mm (1.7 in) of rain falling over 9 days. This uptick marks a shift from the drier summer months, as the region transitions into its wetter season. Following the much heavier rains of June, September's rainfall is relatively moderate but still significant compared to the preceding months. The rainfall helps nourish the environment during this crucial transitional period, paving the way for October’s much heavier downpours, which typically bring 111 mm (4.4 in) across 13 days. This rhythm of rainfall underscores Celestun's tropical climate, characterized by distinct wet and dry periods, fostering lush landscapes that thrive in the aftermath of these seasonal rains.
In Celestun, Mexico, September experiences a humidity level of 75%, marking a slight decline from the more humid summer months of July and August, which both peaked at 77%. This trend of gradually decreasing humidity continues into the fall, as October increases slightly to 76%. Overall, the late summer and early autumn months in Celestun reflect a pattern where humidity remains relatively high, hovering between 72% and 80%. The transition to a drier climate becomes more pronounced as the year progresses, culminating in the higher humidity percentages typical of winter, with November and December reaching an impressive 81% and 84%, respectively. This rhythm sets the stage for the region’s lush landscapes and vibrant ecosystems, making Celestun a unique spot throughout the year.
As summer transitions into autumn, September in Celestun, Mexico, sees a UV Index of 12, categorized as extreme. This consistent level of intensity mirrors the high readings from the previous month, with a burn time of just 10 minutes indicating the need for vigilant sun protection. Throughout the year, Celestun experiences a trend of elevated UV levels, particularly from March to August, where the index often peaks at 13. With the incoming autumn months, the UV Index begins to taper slightly, but it's essential to remain cautious. For detailed insights on UV levels, check Celestun UV Index.
UV Risk Categories
September in Celestún, Mexico, boasts a splendid 309 hours of sunshine, continuing the trend of abundant daylight that defines the summer months. Following the sun-drenched peaks of July and May, which each received over 340 hours, September transitions into a slightly cooler, yet still radiant season. The sun continues to shine brightly as autumn approaches, with only a modest decrease compared to August’s impressive 334 hours. This consistent warmth not only enhances the stunning coastal scenery but also invites visitors to enjoy outdoor adventures while basking in the lingering glow of summer before the days gradually shorten into fall.
In Celestun, Mexico, the likelihood of enjoying sunny weather shifts dramatically throughout the year, with September marking a notable dip to just 38% sunshine. This month stands out against the backdrop of a generally increasing trend in sun exposure from January through March, where the chances peak at 84%. However, as the summer months roll in, the probability of sun declines significantly, reaching its lowest point in June at 28%. While September offers a transition into the milder fall months—where the chance of sunny days gradually improves again—travelers should be mindful that this is not the brightest time of the year in Celestun. Overall, visitors can expect a mix of both sunshine and clouds, making it wise to plan for varied weather as the month unfolds.
In Celestun, Mexico, September marks a subtle transition in daylight duration, with the sun gracing the sky for 12 hours each day. This month continues the pattern established in the summer, where longer days bathe the region in warmth and light. As daylight begins to retreat slightly from the peak of 13 hours seen during the summer months of May through August, it signals an impending shift towards shorter days as summer fades into fall. Looking ahead, October will bring another decrease to 11 hours, illustrating the natural ebb and flow of daylight throughout the year, with the sun gifting Celestun bright days for much of the late summer and early autumn.
As September rolls into Celestun, Mexico, the gentle embrace of the wind begins to soften, with average speeds dipping to 5.0 m/s (11 mph). This marks the culmination of a slow, gradual decline in wind intensity since the summer months, when breezes reached up to 6.6 m/s (15 mph) in March. In September, the lighter winds create a serene atmosphere, perfect for relaxing by the coast or enjoying a tranquil boat ride through the region's stunning natural vistas. While the breezes may be less vigorous, they still carry the sweet scent of the ocean, inviting visitors to savor every moment in this picturesque locale. As autumn approaches, Celestun's wind continues to whisper softly, transitioning the landscape into a quieter, yet equally enchanting, season.
The weather in Celestun 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 Celestun and find detailed weather information for every month.
In September, temperatures are typically warmer, with a minimum of 25°C (77°F), an average of 28°C (83°F), and a maximum of 32°C (90°F). The month experiences higher precipitation levels, with 44 mm (1.7 in) over about 9 days, accompanied by a humidity of 75%. In contrast, January brings milder temperatures, ranging from a minimum of 18°C (65°F) to a maximum of 29°C (85°F), with an average of 23°C (74°F). Precipitation is significantly lower at 17 mm (0.7 in) over just 3 days, and humidity rises slightly to 79%. For a detailed look at conditions in January, check out Celestun weather in January.
In September, the weather tends to be hotter and more humid compared to February, with average temperatures around 28°C (83°F) and maximums reaching up to 32°C (90°F). This month also experiences relatively higher precipitation, totaling 44 mm (1.7 in) over approximately 9 days, resulting in a humidity level of 75%. In contrast, February offers a milder climate, with average temperatures around 24°C (76°F) and maximum temperatures peaking at 30°C (86°F). Precipitation is significantly lower during this month, with only 6 mm (0.2 in) falling on just 1 day, and a slightly higher humidity of 80%. For a more detailed look at February weather, you can check Celestun weather in February.
September and March exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 32°C (90°F), with an average of 28°C (83°F). This month experiences approximately 44 mm (1.7 in) of precipitation over 9 days, coupled with a humidity level of 75%. In contrast, March enjoys milder conditions, with lower minimum temperatures averaging 19°C (67°F) and a maximum temperature of 33°C (92°F), resulting in an overall average of 25°C (78°F). The month is quite dry, receiving only 2 mm (0.1 in) of rain, and features no rainy days, with humidity at a similar level of 76%. For a detailed look at the March weather, check out Celestun weather in March.
In comparing the weather between September and April, September tends to be warmer overall, with average temperatures reaching up to 28°C (83°F) and a maximum of 32°C (90°F), while April experiences slightly cooler average conditions at 27°C (81°F). The humidity is fairly consistent between the two months, with September at 75% and April just a notch lower at 74%. However, September is notably wetter, receiving about 44 mm (1.7 in) of precipitation over 9 days, in contrast to April's much drier conditions with only 5 mm (0.2 in) of rain over just 1 day. For more specifics on April's weather in Celestun, you can visit Celestun weather in April.
In comparing the weather of September and May, both months exhibit warm average temperatures of around 28°C (83°F). However, September tends to be slightly warmer at times, reaching maximum temperatures of up to 32°C (90°F), compared to May's peak of 34°C (93°F). Precipitation is significantly higher in September, with 44 mm (1.7 in) falling over 9 days, while May enjoys a drier climate with just 13 mm (0.5 in) across 2 days. Humidity levels are similar, but September is a touch more humid at 75%, compared to May's 72%. For more detailed insights, you can check Celestun weather in May.
In June, the weather closely resembles that of September, as both months feature a low of 25°C (77°F) and an average temperature of 28°C (83°F). However, June tends to be hotter, with a maximum temperature reaching 34°C (94°F) compared to September's peak of 32°C (90°F). Additionally, June experiences significantly more rainfall, with a total precipitation of 128 mm (5.0 in) over 11 days, compared to September's 44 mm (1.7 in) over 9 days. Humidity levels are slightly higher in September at 75%, compared to 73% in June. For more details on June weather, you can check Celestun weather in June.
In comparing the weather of September and July, both months feature similar minimum temperatures around 25°C (77°F) and average highs of 28°C (83°F). However, September experiences slightly higher maximum temperatures with a peak of 32°C (90°F), compared to July's 33°C (91°F). Notably, September sees significantly more precipitation, with 44 mm (1.7 in) falling over 9 days, while July is much drier, receiving only 13 mm (0.5 in) over 3 days. The humidity is relatively consistent, hovering around 75% in September and 77% in July. For a detailed look at July weather, visit Celestun weather in July.
In comparing the weather of September to that of August, both months exhibit similar temperature ranges with September recording a minimum of 25°C (77°F), an average of 28°C (83°F), and a maximum of 32°C (90°F), mirroring August's temperatures. However, September sees slightly reduced precipitation, with 44 mm (1.7 in) falling over 9 days, compared to August’s 51 mm (2.0 in) over 5 days. Humidity levels are also comparable, with September at 75% and August slightly higher at 77%. For more detailed insights into August's weather, you can visit Celestun weather in August.
In comparing the weather between September and October, September typically experiences slightly warmer temperatures, with an average of 28°C (83°F), compared to October's average of 27°C (82°F). While both months see a maximum temperature of 32°C (90°F), October does feature a notable increase in rainfall, with precipitation rising from 44 mm (1.7 in) over 9 days in September to 111 mm (4.4 in) over 13 days in October. Additionally, humidity levels remain quite similar, with September at 75% and October slightly higher at 76%. For a more detailed look at October's weather, check out Celestun weather in October.
September weather is characterized by warmer temperatures, with minimums around 25°C (77°F) and daily averages reaching up to 28°C (83°F). It experiences more precipitation, totaling 44 mm (1.7 in) over approximately 9 days, alongside a humidity level of 75%. In contrast, November brings a slight drop in temperature, featuring minimums of 21°C (71°F) and average highs of 25°C (78°F). The month sees reduced rainfall, totaling 33 mm (1.3 in) over just 7 days, while humidity increases slightly to 81%. For more specific insights about weather in November, you can check Celestun weather in November.
In September, the weather is warm and humid, with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 32°C (90°F), accompanied by 44 mm (1.7 in) of precipitation over about 9 days. The humidity sits at a comfortable 75%, making it feel quite tropical. In contrast, December brings cooler temperatures, with averages dropping to a minimum of 18°C (65°F) and a maximum of 29°C (85°F). The month sees significantly less rainfall, totaling only 19 mm (0.8 in) over 4 days, although humidity increases to 84%. This shift creates a more refreshing atmosphere compared to the sultry conditions of September. For a detailed look at the December climate, you can visit Celestun weather in December.
As September arrives in Celestun, the weather shifts subtly, presenting a blend of warmth and moisture that sets it apart from the drier months. With average temperatures around 28°C (83°F) and bouts of humidity reaching 75%, the atmosphere feels distinctly tropical. While some might find the 44 mm of rain over 9 days refreshing, others may consider it a stark contrast to the arid conditions of the preceding summer months. For those planning a visit, embracing the warmth and occasional showers can lead to unique experiences in this beautiful coastal paradise. For a deeper dive into the annual weather patterns, check out Celestun Climate.