Last updated: April 22, 2025
September in El Castillo, Mexico, offers a blend of warm temperatures and considerable humidity, making it a distinctive time of year. With maximum temperatures reaching 31°C (89°F) and an average of 20°C (69°F), the weather remains comfortably warm, while minimums dip to 12°C (53°F) during cooler nights. However, visitors should prepare for the frequent rain, as the region experiences 159 mm (6.3 in) of precipitation over 22 days. The high humidity level of 81% can add to the sultry atmosphere, creating a unique backdrop for the beautiful landscapes of this charming area.
In September, El Castillo, Mexico, enjoys a pleasant transition from summer warmth to cooler autumn days. With minimum temperatures hovering around 12°C (53°F) and averaging 20°C (69°F), the weather remains inviting for outdoor activities. The maximum daytime highs reach 31°C (89°F), providing a comfortable warmth that is characteristic of the late summer months. This month typically marks a slight drop in temperatures compared to the hotter summer peak, yet retains a balance that ensures visitors can appreciate both the warmth of the sun and the crispness of the approaching fall. As the month progresses, the weather begins to hint at the cooler days ahead, making it an ideal time to explore the beautiful landscapes and rich culture that El Castillo has to offer.
September in El Castillo, Mexico, marks a significant transition within the rainy season, characterized by substantial precipitation. With 159 mm (6.3 in) of rainfall over 22 days, the month closely follows the heavy downpours of August and continues the trend of increased moisture. This surge, while slightly less than August’s totals, still underscores September's role as a wet month, contributing to a total rainfall of 468 mm (18.4 in) in the peak summer months of June through September. The steady precipitation creates a vibrant, lush landscape, perfectly capturing the essence of the region's tropical climate. As the rainy season begins to wane in October, the lush surroundings serve as a reminder of the transformative power of September's rains.
In September, El Castillo, Mexico, experiences a notable spike in humidity, reaching 81%, a significant increase from the summer months. This rise is part of a broader trend observed throughout the year, where humidity levels generally fluctuate between a comfortable low in March and April at 58%, to a peak during the fall and winter months, with November and October hitting 84% and 83% respectively. The gradual climb from the lower humidity of earlier months signals a transition into a more humid climate, highlighting how September serves as a precursor to the moist conditions of autumn in this enchanting locale.
September in El Castillo, Mexico, continues the trend of high UV exposure consistent throughout the summer months. With a UV Index of 13, categorized as extreme, sunbathers and outdoor enthusiasts should take caution, as the burn time is still a swift 10 minutes. This month marks a slight decrease from August's peak of 14, but safety remains paramount. As the season transitions toward autumn, vigilance against harmful UV rays is essential. For more detailed information, check out the comprehensive data available at El Castillo UV Index.
UV Risk Categories
September in El Castillo, Mexico, continues the enchanting trend of abundant sunshine that defines its climate. With 288 hours of sun gracing the month, it stands as a vibrant transition from the summer peak, where May reaches a dazzling 343 hours. As the year progresses, sunshine gradually tapers off, but September still enjoys more light than the following months, ensuring plenty of opportunities for outdoor adventures. This golden month beautifully encapsulates the warm embrace of the fading summer, inviting visitors to bask in the sun before autumn's colorful arrival.
In El Castillo, Mexico, September marks a noticeable dip in sunshine, as the likelihood of sunny days drops to 22%. This trend reflects a significant shift from the earlier months of the year, where February boasts a remarkable 91% chance of sunny skies, followed by steady figures in March (82%) and April (72%). As summer progresses, the chances wane significantly, with July and August seeing just 18% and 25%, respectively. By the time September arrives, the cloud cover often prevails, setting the stage for a transition into the more balanced autumn weather. As such, those planning a visit during this month should be prepared for a greater likelihood of cloudy days rather than basking in the sun.
In September, El Castillo enjoys a pleasing 12 hours of daylight, continuing the trend set in August, where the sun graces the skies for the same duration. As the year progresses from the longer days of June and July, which boast 13 hours, September marks a subtle shift towards shorter daylight hours, yet it still offers ample time to soak in the vibrant beauty of the surrounding landscapes. This month serves as a bridge, leading into the cooler autumn months of October and November, where daylight gradually recedes to 11 hours and eventually to 10 by December. The transition from summer to fall creates a captivating atmosphere, inviting both locals and visitors to embrace the changing season while relishing the warmth of the lingering sunlight.
As September arrives in El Castillo, Mexico, the wind begins to whisper gently, reflecting the typically lower average wind speed of 1.4 m/s (3 mph). This subtle shift marks a continuation of a gradual decline observed since the blustery heights of April, where the winds were at 2.2 m/s (5 mph). Unlike the summer months which brought only slight breezes, September's tranquil air invites a calm ambiance, perfect for enjoying the scenic landscapes. After the mild fluctuations in wind speeds during the year, this slight dip in September seems to signal the onset of more serene autumn days, setting the stage for the cooler, crisper winds that will follow in October and beyond.
The weather in El Castillo 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 El Castillo and find detailed weather information for every month.
September and January present strikingly different weather conditions. In September, temperatures range from a minimum of 12°C (53°F) to a maximum of 31°C (89°F), with an average of 20°C (69°F). This month sees significant rainfall, with an average precipitation of 159 mm (6.3 in) over 22 days and a humidity level of 81%. In contrast, January experiences milder temperatures, with a minimum of 3°C (37°F) and an average of 16°C (61°F), while still reaching up to 31°C (87°F). Precipitation is minimal, with only 6 mm (0.2 in) falling across just 1 day, and humidity levels drop to 74%. For more detailed information, you can check El Castillo weather in January.
September and February present contrasting weather conditions, with each month offering a unique experience. In September, temperatures range from a mild 12°C (53°F) to a warm 31°C (89°F), with an average of 20°C (69°F). This month also sees significant rainfall, totaling 159 mm (6.3 in) spread over 22 days, resulting in high humidity levels at 81%. In contrast, February enjoys cooler temperatures, with a minimum of 4°C (40°F), an average of 18°C (65°F), and a maximum of 32°C (90°F). Notably, February experiences much less precipitation, with only 10 mm (0.4 in) over just 2 days, leading to lower humidity at 65%. For details on February weather in the area, you can check out El Castillo weather in February.
In September, temperatures range from a minimum of 12°C (53°F) to a maximum of 31°C (89°F), with an average of 20°C (69°F). The month is characterized by high humidity at 81% and considerable rainfall, totaling 159 mm (6.3 in) over 22 days, making it a wet and humid season. In contrast, March offers a more temperate climate, with temperatures between 7°C (46°F) and 35°C (95°F), averaging at 21°C (70°F). This month experiences significantly less rainfall, with only 4 mm (0.2 in) falling over just 1 day, and lower humidity at 58%. For more specific weather conditions during March, you can explore El Castillo weather in March.
In comparing the weather between September and April, it's clear that April enjoys warmer temperatures overall, with an average of 23°C (73°F) and highs reaching up to 35°C (95°F), compared to September's average of 20°C (69°F) and maximum temperatures of 31°C (89°F). Additionally, April is significantly drier, experiencing just 2 mm (0.1 in) of precipitation across zero days, whereas September sees much more rain, with a total of 159 mm (6.3 in) over 22 days. The humidity levels also differ, as September has a higher humidity of 81%, while April's humidity is a more comfortable 58%. For more insights into April weather patterns, you can check out El Castillo weather in April.
In September, the weather tends to be more humid and rainy, with average temperatures around 20°C (69°F) and a maximum of 31°C (89°F). The month sees significant precipitation, totaling 159 mm (6.3 in), spread over 22 days, resulting in a humidity level of 81%. In contrast, May offers warmer and drier conditions, with an average temperature of 24°C (76°F) and highs reaching up to 36°C (98°F). Precipitation is minimal in May, amounting to only 27 mm (1.1 in) over just 5 days, contributing to a lower humidity of 67%. For a detailed look at May conditions, you can check El Castillo weather in May.
In comparing the weather of September and June, we observe distinct differences in temperature and precipitation patterns. September generally experiences a wider range of temperatures, with minimums around 12°C (53°F) and maximums reaching up to 31°C (89°F), while June tends to be warmer, ranging from a minimum of 14°C (58°F) to a scorching maximum of 36°C (97°F), averaging 23°C (73°F). When it comes to rainfall, September is the wetter month, receiving 159 mm (6.3 in) of precipitation over 22 days, compared to June’s 122 mm (4.8 in) over 17 days. Additionally, humidity levels are slightly higher in September at 81%, compared to 76% in June. For more detailed insights on June weather conditions, visit El Castillo weather in June.
When comparing the weather in September to that of July, we notice some subtle yet significant differences. September tends to have a slightly wider temperature range, with minimums dipping to 12°C (53°F) and maximums reaching up to 31°C (89°F), while July features a minimum of 13°C (56°F) and a maximum of 32°C (90°F). Precipitation levels are quite similar, with September receiving 159 mm (6.3 in) across 22 days and July experiencing 168 mm (6.6 in) over 23 days. Notably, September also has a higher humidity level at 81%, compared to July's 67%, contributing to a potentially more uncomfortable feel during the former month. For those interested in more detailed insights, check out El Castillo weather in July.
In comparing the weather patterns of September and August, September experiences slightly cooler temperatures with an average of 20°C (69°F) compared to August's 21°C (70°F). Both months share similar maximum temperatures, with September hitting 31°C (89°F) and August reaching 31°C (87°F). However, September is characterized by increased precipitation, totaling 159 mm (6.3 in) over 22 days, while August records slightly more rainfall at 168 mm (6.6 in) across 23 days. Additionally, September's humidity is notably higher at 81%, compared to August's 68%. For a detailed look at August's weather, visit El Castillo weather in August.
In comparing the weather between September and October, we see notable differences despite the average temperature remaining constant at 20°C (69°F). September experiences a wider temperature range with minimums around 12°C (53°F) and maximums soaring to 31°C (89°F), accompanied by substantial rainfall of 159 mm (6.3 in) over 22 days and a high humidity of 81%. In contrast, October presents slightly cooler nights with minimum temperatures dropping to 8°C (47°F) and slightly warmer days reaching a maximum of 32°C (89°F). The precipitation significantly decreases to 65 mm (2.5 in) spread over just 10 days, while humidity remains relatively stable at 83%. For a more detailed look at October weather, visit El Castillo weather in October.
September and November showcase contrasting weather patterns. In September, temperatures range from a minimum of 12°C (53°F) to a comfortable average of 20°C (69°F) and can peak at a warm 31°C (89°F). However, this month experiences significant rainfall, with 159 mm (6.3 in) spread over 22 days, alongside humidity levels reaching 81%. In contrast, November offers a cooler climate, with minimum temperatures dropping to 5°C (41°F), an average of 18°C (65°F), and still maintaining highs of 31°C (89°F). This month sees markedly less precipitation, totaling only 22 mm (0.9 in) over just 3 days, accompanied by slightly higher humidity at 84%. For more specifics about November weather, you can visit El Castillo weather in November.
In September, the weather is significantly warmer, with average temperatures around 20°C (69°F) and highs reaching up to 31°C (89°F). The month is marked by considerable precipitation, totaling 159 mm (6.3 in) over 22 days, contributing to a humid environment with 81% humidity. In contrast, December brings cooler temperatures, with an average of 16°C (61°F) and maximums peaking at 30°C (86°F). Notably, December experiences minimal rainfall, with just 3 mm (0.1 in) and no rainy days, while the humidity remains constant at 81%. For more detailed information on December weather, visit El Castillo weather in December.
As September rolls into El Castillo, the weather transforms, signaling a shift from the dry heat of summer to a more humid, rain-soaked climate. With an average temperature of 20°C (69°F), residents and visitors alike experience a welcome reprieve from the scorching highs, which can peak at 31°C (89°F). However, September is also the wettest month of the year, bringing 159 mm (6.3 in) of rainfall over 22 days, leading to an overall humidity level of 81%. This increase in moisture can make the air feel heavier but also nourishes the local landscape, enhancing its lush beauty. For a deeper understanding of the nuances in seasonal shifts, explore the comprehensive details on El Castillo Climate.