Last updated: April 22, 2025
September weather in Tenochtitlan, Mexico is marked by a blend of warmth and humidity, with maximum temperatures reaching up to 29°C (85°F) and an average of 20°C (69°F). Though evenings can be cooler, dropping to a minimum of 13°C (57°F), the month is characterized by significant precipitation, totaling 257 mm (10.1 in) across 25 days. This high humidity level of 86% contributes to a lush environment, making September a vibrant time to experience the rich culture and history of Tenochtitlan.
In September, Tenochtitlan experiences a gentle transition into the fall, with temperatures that are generally mild and inviting. The minimum temperature hovers around 13°C (57°F), while the average reaches a comfortable 20°C (69°F), providing a pleasant backdrop for exploring this historic city. With the maximum temperature peaking at 29°C (85°F), the warmth is still reminiscent of summer, yet it feels less intense, making it an ideal time for outdoor activities. This month marks a subtle shift from the warmer months of late summer, reflecting a gradual cooling trend towards October, without losing the vibrant energy of Tenochtitlan.
September marks a peak in precipitation for Tenochtitlan, with an impressive 257 mm (10.1 in) of rainfall over 25 days. This month follows a trend of increasing wetness throughout the summer, transitioning from a moderate 150 mm in May to an even more substantial 221 mm in August. The pattern suggests a climate that intensifies as the rainy season progresses, culminating in September's record rainfall, which makes it one of the wettest months of the year. As the skies open up, the lush landscapes of Tenochtitlan flourish, showcasing the city's remarkable ability to adapt to such abundant moisture, a crucial aspect of its agricultural prosperity.
September in Tenochtitlan, Mexico, brings a notable shift in humidity, registering at 86%—a slight uptick from the preceding months. This rise aligns with the transition into the rainy season, where moisture levels begin to elevate, creating a lush and vibrant atmosphere. Following a pattern seen since the beginning of the year, September’s humidity levels remain elevated as the city approaches the peak of fall, foreshadowing the even more humid months of October and November, which soar to 90% and 91%, respectively. As such, September serves as a reminder of the lush, tropical climate that characterizes this ancient city, bridging the dry summer months with the damp, rich soils of autumn.
As September rolls in Tenochtitlan, Mexico, the UV Index remains high at 14, maintaining its extreme exposure category that characterizes much of the summer months. With a burn time of just 10 minutes, it's essential for residents and visitors alike to take precautions against the sun's powerful rays. This trend of elevated UV levels continues from the peak of summer, indicative of the region's consistent exposure to strong sunlight. With only slight variations across the months, the UV Index throughout the year consistently urges vigilance under the sun. For more insights on UV levels in Tenochtitlan, visit Tenochtitlan UV Index.
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As September arrives in Tenochtitlan, Mexico, the city's vibrant energy is accentuated by 283 hours of sunshine, marking a gentle decline from the sun-drenched peak of 319 hours in May and a robust 321 hours in July. This month transitions the sunny highs of summer into the softer glow of autumn, with a notable drop-off compared to the preceding summer months. However, September’s generosity in sunlight still stands as a comfortable precursor to October's slightly increased 294 hours. Overall, the trend subtly hints at a gradual easing of the summer's radiance, while still providing a warm atmosphere that invites exploration and enjoyment of Tenochtitlan's rich cultural heritage.
In Tenochtitlan, Mexico, the likelihood of sunny weather in September takes a noticeable dip, with only a 20% chance of sunshine. This marks a distinct departure from the warmer months that precede it, particularly August, which boasts a 41% chance and shows a more favorable trend. As summer transitions into autumn, the overall pattern reveals a decline in clear skies, culminating in the much brighter days of December, where sunshine rates soar to 67%. September's lower likelihood reflects the onset of seasonal changes, making it a month where visitors may want to prepare for more overcast skies than sun-soaked adventures.
As September unfolds in Tenochtitlan, the city enjoys a delightful 12 hours of daylight, mirroring the previous months of August and April. The trend of gradually increasing daylight from January through May peaks in the summer months, with 13 hours basking the land during June and July. Following this summer pinnacle, daylight begins its slow descent, returning to 12 hours in September before tapering down into the shorter days of the fall. This rhythmic cycle of light not only marks the changing seasons but also echoes the rich tapestry of life and activity in this ancient city, as its inhabitants adapt and thrive with the shifting sun.
As September arrives in Tenochtitlan, the city feels a gentle shift in the air, with average wind speeds settling at 1.4 m/s (3 mph). This slight dip marks the continuation of a trend observed throughout the summer months, where winds have gradually decreased from 1.7 m/s (4 mph) in March and April to their current whisper. The consistent tranquility of September's breezes provides a serene backdrop for the bustling life of the city, reflecting an annual rhythm that ensures the essence of Tenochtitlan is felt even in the softest of winds. As autumn approaches, this gentle flow of air serves as a reminder of the seasonal transitions, inviting the inhabitants to embrace the calm before the change.
The weather in Tenochtitlan 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 Tenochtitlan and find detailed weather information for every month.
When comparing the weather between September and January, there are notable differences in temperature and precipitation. September experiences a milder average temperature of 20°C (69°F), with maximums reaching up to 29°C (85°F), making it feel relatively warm. In contrast, January has a cooler average of 15°C (59°F), although it shares a similar maximum temperature of 29°C (84°F). Additionally, September sees significantly more rainfall, with 257 mm (10.1 in) over 25 days, compared to January’s 78 mm (3.1 in) across only 10 days. Humidity remains fairly high in both months, with September at 86% and January slightly higher at 88%. For more specifics on January weather, you can check Tenochtitlan weather in January.
September and February showcase contrasting weather patterns. In September, temperatures range from a minimum of 13°C (57°F) to a maximum of 29°C (85°F), with an average of 20°C (69°F). This month experiences significant rainfall, with 257 mm (10.1 in) falling over 25 days, contributing to high humidity levels of 86%. In contrast, February presents milder conditions, featuring a temperature range from 3°C (37°F) to a warmer maximum of 32°C (89°F), with an average of 16°C (62°F). Precipitation is notably lower in February, at just 55 mm (2.2 in) over 8 days, yet humidity remains high at 86%. For more details on February weather patterns, visit Tenochtitlan weather in February.
When comparing the weather in September and March, we see distinct differences in temperature and precipitation patterns. September boasts a warmer climate with average temperatures around 20°C (69°F), peaking at 29°C (85°F), but it also experiences high humidity at 86% and significant rainfall, totaling 257 mm (10.1 in) across 25 days. In contrast, March shows a cooler profile with an average temperature of 18°C (64°F) and a maximum of 31°C (88°F), but with much less rainfall, only 83 mm (3.2 in) over 11 days and slightly lower humidity at 84%. For more specific details about March weather, check Tenochtitlan weather in March.
When comparing the weather in September and April, notable differences emerge. September typically features a mild range of temperatures, with a minimum of 13°C (57°F), an average of 20°C (69°F), and a maximum of 29°C (85°F). This month is also characterized by high humidity at 86% and significant rainfall, receiving 257 mm (10.1 in) over 25 days. In contrast, April showcases slightly cooler minimum temperatures at 9°C (48°F) and reaches higher maximums up to 32°C (90°F), with an average of 20°C (68°F). Precipitation in April is much lower at 94 mm (3.7 in) across 16 days and humidity is still relatively high at 81%. For more detailed insights, you can check Tenochtitlan weather in April.
In comparing the weather of September and May, we find both months experiencing mild temperatures, though with distinct differences. September tends to be slightly warmer on average, with temperatures ranging from a minimum of 13°C (57°F) to a maximum of 29°C (85°F), while May sees comparable averages with temperatures from 12°C (54°F) to 31°C (87°F). However, September is considerably wetter, receiving 257 mm (10.1 in) of precipitation over 25 days, compared to May's 150 mm (5.9 in) on 21 days. Humidity levels are also higher in September at 86%, compared to 82% in May. For more specifics about May's climate, you can check out Tenochtitlan weather in May.
When comparing the weather in September and June, it's clear that both months experience mild temperatures, but September tends to be slightly cooler and wetter. In September, temperatures range from a minimum of 13°C (57°F) to a maximum of 29°C (85°F), with an average of 20°C (69°F). The month also sees significant precipitation, with about 257 mm (10.1 in) falling across 25 days, contributing to a high humidity level of 86%.
In contrast, June has a slightly warmer temperature range, with a minimum of 14°C (57°F) and a maximum of 30°C (87°F), and an average of 21°C (70°F). The total precipitation is lower than in September at around 213 mm (8.4 in), also spread across 25 days, resulting in a slightly lower humidity of 81%. For more detailed insights on the conditions typical for June, you can visit Tenochtitlan weather in June.
In comparing the weather of September and July, we see some notable differences. September experiences slightly cooler temperatures, with an average of 20°C (69°F) compared to July's average of 21°C (69°F). However, July has a lower minimum temperature of 14°C (58°F) compared to September's 13°C (57°F). Rainfall is significantly higher in September, with 257 mm (10.1 in) over 25 days, in contrast to July’s 144 mm (5.7 in) over 22 days. Additionally, September tends to be more humid at 86% relative to July’s 81%. For a detailed look at July’s climate, refer to this link: Tenochtitlan weather in July.
September weather is slightly cooler than August, with minimum temperatures averaging 13°C (57°F) compared to August's low of 14°C (58°F). Both months experience similar maximum temperatures, reaching around 29°C (85°F) in September and 29°C (84°F) in August. However, September sees a marked increase in precipitation, with 257 mm (10.1 in) over 25 days, compared to August's 221 mm (8.7 in) over 26 days. Additionally, September is more humid, with an average humidity of 86%, whereas August has a slightly lower humidity of 82%. For more details, you can check Tenochtitlan weather in August.
September and October exhibit notable differences in weather patterns. In September, the temperatures range with a minimum of 13°C (57°F) and an average of 20°C (69°F), peaking at a maximum of 29°C (85°F). This month also sees a higher precipitation level of 257 mm (10.1 in) across 25 days, coupled with an average humidity of 86%. In contrast, October brings slightly cooler temperatures, with a minimum of 11°C (53°F), an average of 19°C (67°F), and a maximum of 29°C (84°F). Precipitation decreases to 166 mm (6.5 in) over 21 days, while humidity rises slightly to 90%. For more detailed insights, you can check Tenochtitlan weather in October.
September and November present contrasting weather patterns. In September, temperatures range from a mild minimum of 13°C (57°F) to a warm maximum of 29°C (85°F), with an average of 20°C (69°F). The month is characterized by high humidity at 86% and significant rainfall, receiving a total of 257 mm (10.1 in) across 25 days. In stark contrast, November experiences cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 27°C (81°F), averaging 17°C (62°F). The precipitation decreases notably to 90 mm (3.5 in), spread over just 13 days, and humidity slightly rises to 91%. For more detailed insights into November weather, check Tenochtitlan weather in November.
In September, the weather is characterized by warm temperatures, with minimums around 13°C (57°F) and maximums reaching up to 29°C (85°F). The month sees significant rainfall, averaging 257 mm (10.1 in) over 25 days, and a high humidity of 86%. In contrast, December experiences cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 26°C (80°F), leading to a much milder average of 15°C (60°F). Precipitation drops dramatically to just 38 mm (1.5 in) across 8 days, and humidity increases slightly to 91%. For those interested in more details, you can check out the Tenochtitlan weather in December.
As September unfolds in Tenochtitlan, the transition to the rainy season becomes unmistakable. With a significant increase in humidity, the air feels particularly heavy, and the city often experiences prolonged spells of rain. This month stands out from others not only due to its higher precipitation rates—making it one of the wettest times of the year—but also thanks to the warm temperatures that linger throughout the day. While maximums reach a pleasant warmth, the consistent moisture contributes to an overall damp environment, setting September apart as a unique chapter in Tenochtitlan's climatic story. For a more in-depth look at the weather patterns throughout the year, check out Tenochtitlan Climate.