Last updated: April 22, 2025
September in San Cristobal, Mexico, showcases a vibrant transition into the rainy season, characterized by temperatures ranging from a maximum of 32°C (89°F) to a cool minimum of 10°C (50°F), with an average temperature of 21°C (69°F). The month experiences substantial precipitation, accumulating 151 mm (5.9 in) over approximately 18 days, contributing to the lush greenery of the region. Visitors can expect a high humidity level of 81%, making the air feel warmer and creating a dynamic atmosphere that highlights the beauty of this charming location. Whether you're exploring the local culture or enjoying nature, September offers a unique blend of warmth and refreshing rainfall.
September in San Cristobal, Mexico, marks a delightful transition in temperatures as summer begins to wane. With minimum temperatures around 10°C (50°F) and average highs reaching 32°C (89°F), the weather offers a pleasant blend of warmth and mildness. During this month, the average temperature stabilizes at a comfortable 21°C (69°F), reminiscent of the comfortable conditions seen in both July and August. As this tranquil month unfolds, it invites visitors to enjoy the charming streets and rich culture amidst a backdrop of moderate temperatures, hinting at the cooler days ahead in October.
In September, San Cristobal experiences a notable continuation of its rainy season, characterized by substantial precipitation averaging 151 mm (5.9 in) over 18 days. This volume reflects a slight decrease from the summer peak months of June, July, and August, which saw heavy rainfall, especially in July with 169 mm. However, September’s consistent rainfall reinforces the region's lush landscapes and vibrant ecosystems. As the month progresses, the frequency of rain begins to taper off, setting the stage for a transition into drier seasons, with October poised to bring a sharp decline in both rainfall and rainy days. This ongoing trend underscores the variable climate that San Cristobal experiences, illustrating how the rainy season weaves through the year’s narrative.
As September unfolds in San Cristobal, Mexico, the air swells with a noticeable hygrometric embrace, as humidity reaches 81%. This peak in moisture marks a significant rise from the drier months of March and April, which hover around 58%. The summer months contribute to this trend, with June maintaining a high of 76% and gradually giving way to August's 68%. However, it's in September where humidity really asserts itself, setting the stage for the wetter months ahead. Following this trend, October and November will see an even greater uptick, culminating at 84%, hinting at a season filled with lush greenery. As the humidity rises, so does the vibrant life that thrives in this charming locale.
In September, San Cristobal, Mexico, continues to experience an extreme UV Index of 13, with a burn time of just 10 minutes. This marks a slight decline from the peak indices seen in earlier months, but the threat of harmful UV radiation remains significant. Throughout the year, the UV Index consistently stays high, often reaching extreme levels from February through August, with March, April, May, and June peaking at an intense 14. As the year progresses towards October, there's a gradual decrease, yet the priority for skin protection remains essential. For more detailed insights on UV conditions, visit San Cristobal UV Index.
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September in San Cristobal offers a delightful balance of sunshine, with 294 hours of bright daylight gracing the city. While this marks a slight dip from the bustling months of summer, when residents and visitors enjoyed an impressive 327 hours in July and 323 hours in August, it still remains a robust invitation to enjoy the beauty of fall. The trend reveals that as the year progresses, sunshine hours generally peak from May to August, before settling into a gentler rhythm in the autumn months. With autumn's arrival, San Cristobal continues to bask in plenty of sunshine, making September a beautiful time for exploring its vibrant culture and stunning landscapes.
In San Cristobal, Mexico, the likelihood of sunny weather in September is relatively low, with only a 23% chance of sunshine. This trend follows the significantly drier months of June and July, which also see a mere 23% and 24% chance, respectively. As the rainy season progresses, the sun often takes a back seat, making way for increased cloud coverage and potential rainfall. However, just before the sun re-emerges more frequently in October at 45%, September stands as one of the cloudier months, setting a stark contrast with the brighter, sunnier days that characterize February's impressive 89% chance of sun.
In September, San Cristobal enjoys a brisk 12 hours of daylight, marking a transition as the sun slowly begins to retreat. This duration is consistent with the preceding month of August, where the days are slightly longer, with 12 hours of light as well. As the year progresses, daylight hours peak in May and June with 13 hours—the longest stretch—and gradually decline towards the end of the year. This ebb and flow create a rhythm of vibrant days in spring and summer, leading into the softer, shorter days of autumn and winter, making September a delightful crossover month in San Cristobal's year.
As September unfolds in San Cristobal, Mexico, the gentle caress of the wind begins to soften, with an average speed of just 1.6 m/s (4 mph). This slight decrease comes on the heels of a summer characterized by relatively consistent breezes hovering around 1.7 to 2.2 m/s. Interestingly, while the late summer months showcased a mild charm, September's winds whisper hints of approaching autumn, further mellowing as the year progresses. With the wind speed falling to its lowest point of the year, San Cristobal invites visitors to experience its serene landscapes, where the tranquil air mirrors the ease of the vibrant local culture, setting the stage for a peaceful transition toward the cooler months ahead.
The weather in San Cristobal 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 San Cristobal and find detailed weather information for every month.
September and January showcase a stark contrast in weather patterns. In September, temperatures range from a cool 10°C (50°F) at night to a warm 32°C (89°F) during the day, with an average of 21°C (69°F). This month is also characterized by higher humidity at 81% and significant rainfall, receiving about 151 mm (5.9 in) over 18 days. Conversely, January presents milder conditions with minimum temperatures dropping to 3°C (37°F) and a comfortable average of 16°C (61°F), peaking at 30°C (87°F). Notably, January is much drier, with only 3 mm (0.1 in) of precipitation over just one day and a slightly lower humidity of 74%. For more details, you can check San Cristobal weather in January.
September and February present contrasting weather patterns. September boasts a wider temperature range with minimums around 10°C (50°F) and maximums peaking at 32°C (89°F), while February's temperatures are slightly cooler, ranging from a minimum of 6°C (43°F) to a maximum of 32°C (90°F). Precipitation is significantly higher in September, with 151 mm (5.9 in) falling over 18 days, creating a rather humid environment at 81%. In stark contrast, February sees just 4 mm (0.2 in) of rain over only 1 day, leading to a much drier atmosphere with lower humidity levels of 65%. For more insights about February's climate, you can refer to San Cristobal weather in February.
September and March exhibit notable differences in weather patterns. September boasts a wider temperature range, with minimums at 10°C (50°F) and maximums reaching 32°C (89°F), while average temperatures are around 21°C (69°F). However, it is also a rainy month, with 151 mm (5.9 in) of rainfall across 18 days and high humidity at 81%. In contrast, March features slightly cooler minimum temperatures at 6°C (42°F) and warmer maximum temperatures at 34°C (94°F), but with significantly less rainfall of only 6 mm (0.2 in) over just 1 day and a lower humidity level of 58%. For those looking to explore weather specifics, you can find more details here: San Cristobal weather in March.
When comparing the weather in September and April, distinct differences emerge. September features a broader temperature range, with minimums around 10°C (50°F) and maximums reaching 32°C (89°F), alongside notable precipitation of 151 mm (5.9 in) over 18 rainy days and high humidity levels at 81%. In contrast, April enjoys a milder climate with an average temperature of 23°C (74°F), peaking at 36°C (97°F) but experiencing minimal rainfall, just 3 mm (0.1 in) across no rainy days and lower humidity at 58%. For a closer look at April conditions, visit San Cristobal weather in April.
In comparing the weather between September and May, it is evident that May tends to be warmer and drier. May boasts an average temperature of 25°C (77°F) with maximums reaching up to 38°C (100°F), compared to September's average of 21°C (69°F) and maximums of 32°C (89°F). Additionally, May experiences significantly less precipitation, with only 32 mm (1.3 in) falling over 6 days, whereas September is much wetter, receiving 151 mm (5.9 in) over 18 days. The humidity levels also differ, with September maintaining a higher average of 81% compared to May's 67%. For more detailed information on May weather, you can check San Cristobal weather in May.
September and June exhibit notable differences in weather patterns. September tends to have cooler temperatures, with a minimum of 10°C (50°F) compared to June's minimum of 13°C (56°F). The average temperature in September is also slightly lower at 21°C (69°F), while June boasts a warmer average of 23°C (74°F). Interestingly, June can reach a maximum of 37°C (99°F), significantly higher than September's max of 32°C (89°F). Both months experience similar levels of precipitation, with September recording 151 mm (5.9 in) over 18 days, while June has 145 mm (5.7 in) over 15 days, resulting in September being slightly wetter. Humidity levels are higher in September at 81% compared to June’s 76%. For more detailed insights, check the link: San Cristobal weather in June.
In comparing the weather of September and July, we see that July has a slightly higher minimum temperature at 13°C (55°F) compared to September's 10°C (50°F), while both months share the same average temperature of 21°C (70°F) and maximum temperature at 32°C (90°F). However, September experiences more rainfall, totaling 151 mm (5.9 in) over 18 days, whereas July's precipitation is slightly greater at 169 mm (6.7 in) over 20 days. Additionally, humidity is notably higher in September at 81%, compared to July's more moderate 67%. For more detailed insights into July's weather, you can check San Cristobal weather in July.
In comparing the weather between August and September, we find that both months experience similar average temperatures, hovering around 21°C (70°F). However, September sees slightly cooler minimum temperatures at 10°C (50°F), compared to 12°C (54°F) in August. Precipitation is quite comparable, with September receiving 151 mm (5.9 in) over 18 days, while August records 153 mm (6.0 in) over 17 days. Notably, September experiences a higher humidity level of 81%, contrasted with August's 68%. For a more detailed look at August weather, visit San Cristobal weather in August.
September typically experiences a wider range of temperatures, with minimums reaching 10°C (50°F) and maximums peaking at 32°C (89°F), while October sees slightly cooler nights with a minimum of 8°C (47°F) and a maximum of 33°C (91°F). Despite the average temperatures being similar, September is marked by significantly higher precipitation, totaling 151 mm (5.9 in) over 18 days, compared to October's much drier 51 mm (2.0 in) spread across just 7 days. Humidity levels remain fairly high in both months, with September at 81% and October slightly higher at 83%. For a more detailed look at October's weather conditions, you can check San Cristobal weather in October.
September and November present contrasting weather conditions. In September, temperatures range from a cool 10°C (50°F) at night to a warm 32°C (89°F) during the day, with an average of 21°C (69°F). This month is characterized by significant rainfall, with 151 mm (5.9 in) of precipitation over 18 days, contributing to a high humidity level of 81%.
In contrast, November sees a drop in nighttime temperatures to a minimum of 4°C (39°F) while daytime highs remain similar at 32°C (89°F), leading to an average of 18°C (65°F). Notably, November experiences much less rainfall, with only 17 mm (0.7 in) over just 1 day, and humidity slightly increasing to 84%. This shift signifies a transition to drier and cooler conditions as the year comes to a close. For more details on November weather, you can visit San Cristobal weather in November.
In September, the weather is warm with average temperatures ranging from a low of 10°C (50°F) to a high of 32°C (89°F), accompanied by significant rainfall of 151 mm (5.9 in) over 18 days. The humidity remains high at 81%, creating a rather tropical atmosphere. In contrast, December experiences much cooler temperatures, with a minimum of 1°C (35°F) and an average of 16°C (61°F). Notably, December boasts very little precipitation, only 3 mm (0.1 in) throughout the month, and not a single rainy day. Despite the temperature drop, humidity remains consistent at 81%, reflecting a distinct seasonal transition. For more details, you can check San Cristobal weather in December.
In September, San Cristobal experiences a noticeable shift in weather compared to other months. With average temperatures sitting around a comfortable 21°C, the summer heat begins to taper off; however, the temperatures can still soar to a maximum of 32°C during the day, creating warm afternoons. This month is marked by increased humidity levels and roughly 18 days of rainfall, contributing to a total precipitation of 151 mm. These conditions can make the atmosphere feel quite tropical. As you prepare for your visit, be sure to check out the detailed climate patterns at San Cristobal Climate to make the most of your experience in this vibrant destination.