Last updated: April 22, 2025
September in San Cristobal, Mexico showcases a unique blend of warmth and moisture, as the maximum temperature reaches a comfortable 29°C (85°F), while the average hovers around 20°C (68°F). However, with minimum temperatures descending to 10°C (50°F), visitors should be prepared for cooler evenings. This month is notably wet, recording 238 mm (9.4 in) of precipitation over 25 days, contributing to the region's lush landscapes. High humidity levels of 84% create a tropical atmosphere, making September a time of vibrant flora and rich, green surroundings, ideal for those who appreciate the beauty of nature in full bloom.
In September, San Cristobal, Mexico, experiences a delightful transition into early autumn, characterized by pleasant temperatures that offer an inviting escape from the summer heat. The month sees a minimum temperature of around 10°C (50°F), which allows for cool, refreshing mornings, while the average temperature hovers at a comfortable 20°C (68°F). As the days warm up, they reach a maximum of 29°C (85°F), creating ideal conditions for exploring the vibrant local culture and stunning landscapes. Compared to the hotter summer months of July and August, September’s temperatures are milder, making outdoor activities more enjoyable. This month effectively balances the warmth of late summer with the crispness of fall, providing a perfect backdrop for visitors to immerse themselves in the enchanting atmosphere of this unique destination.
In September, San Cristobal experiences its peak precipitation, with an impressive 238 mm (9.4 in) of rainfall over the month, making it the wettest time of the year. This substantial amount falls across 25 days, revealing the characteristic rainy season dynamics of the region. The increase in precipitation is part of a broader trend observed from May to September, where rainfall steadily climbs from 110 mm (4.3 in) in May to September’s torrential Total. As the month unfolds, communities prepare for the frequent downpours, which play a crucial role in nourishing the lush landscapes that define this picturesque area. The significant rainfall in September not only highlights this month as a climax of the wet season but also sets the stage for the slightly diminished, yet still notable, precipitation levels that follow in October.
In September, humidity levels in San Cristobal, Mexico experience a notable rise to 84%, creating a distinctly lush atmosphere as the rainy season progresses. This increase follows a downward trend during the summer months, where humidity dipped to its lowest at 72% in July. However, September marks a shift toward more humidity similar to the earlier months of the year, which averaged around 84-88%. As the lush greenery returns after the rains, residents and visitors alike can enjoy the vibrant landscapes, even as they embrace the humidity that signals the end of summer and the approach of the wetter months ahead.
September in San Cristobal, Mexico, continues the trend of extreme UV exposure, with the UV Index holding steady at 13 and a short burn time of just 10 minutes. This follows a summer season marked by persistently high values, with several months reaching a peak UV Index of 14. As we transition into fall, while the UV Index slightly decreases to 12 in October, the overarching trend remains clear: from February through September, residents and visitors should stay vigilant against sun exposure. For more insights and safety tips, check out San Cristobal UV Index.
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In September, San Cristobal basks in a delightful 264 hours of sunshine, a vibrant transition as summer begins to wane. While this marks a notable drop from the sun-drenched May, which boasts 317 hours, it's still a generous offering that keeps the spirit of summer alive. Following the peak sunshine months of July and August, September invites a softer golden light, hinting at the upcoming autumn. Interestingly, this month’s sunshine hours remain robust when compared to earlier in the year, consistently outperforming the winter months of November and December. As the heat of summer gives way to cooler breezes, September shines as a perfect time to explore the enchanting streets of San Cristobal, where every sunbeam brings the vibrant culture to life.
In September, the likelihood of sunny weather in San Cristobal, Mexico, takes a noticeable dip, standing at just 13%. As the summer months progress, the city experiences a significant reduction in sunshine, following the peak of 49% in March. This trend reflects the onset of the rainy season, where clouds and precipitation dominate the horizon. The sharp contrast between September and the sunnier months of January, April, and even October, highlights the transitional climate that characterizes late summer and early fall in this beautiful region. While September may not be the ideal time for sun-seekers, it offers a unique atmosphere as nature comes alive with lush greenery and vibrant landscapes.
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 graces San Cristobal, the gentle whispers of the wind continue to dance through the streets, averaging a subtle 1.2 m/s (3 mph). This slight drop in wind speed marks a transition from the summer months, where breezes lingered at a steadier pace of 1.4 m/s. While the winds are at their calmest this month, they mirror the tranquil atmosphere of early autumn, inviting locals and visitors alike to relish in the peaceful surroundings. As the year progresses, the consistency of the 3 mph winds from January through December creates a comforting backdrop, reinforcing the charm of San Cristobal's weather, where each month brings a gentle, rhythmic breeze.
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 present quite different weather patterns. In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 29°C (85°F), with an average of 20°C (68°F). This month is quite wet, marked by 238 mm (9.4 in) of precipitation over 25 days, resulting in a high humidity level of 84%. In contrast, January is much cooler, featuring temperatures that range from a low of 2°C (35°F) to a high of 30°C (86°F), with an average of 13°C (56°F). Precipitation drops significantly to 39 mm (1.5 in) over just 7 days, while humidity increases slightly to 88%. For more information on January’s weather, you can check out San Cristobal weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a cooler minimum of 10°C (50°F) to a warm maximum of 29°C (85°F), with an average of 20°C (68°F). This month is characterized by frequent rainfall, with 238 mm (9.4 in) spread over 25 days and a humidity level of 84%. Conversely, February offers milder conditions with temperatures ranging from a low of 1°C (34°F) to a warm high of 32°C (90°F), and an average temperature of 15°C (60°F). Precipitation is much lighter, totaling just 35 mm (1.4 in) over 8 days while maintaining a slightly higher humidity of 86%. For more details on February weather, you can visit San Cristobal weather in February.
When comparing the weather in September and March, it's clear that both months offer distinct experiences. September typically shows a wider temperature range, with a minimum of 10°C (50°F) and a maximum of 29°C (85°F), averaging around 20°C (68°F). It is also characterized by high humidity at 84% and significant rainfall, accumulating 238 mm (9.4 in) over 25 days. In contrast, March features milder temperatures, with a minimum of 4°C (40°F) and a maximum of 33°C (92°F), averaging 17°C (63°F). March is notably drier, receiving only 43 mm (1.7 in) of precipitation over just 9 days, while maintaining a similarly high humidity level at 83%. For more detailed insights into March weather, you can visit San Cristobal weather in March.
September and April present distinct weather patterns, with notable differences in temperature and precipitation. In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 29°C (85°F), while April shows a broader range with a minimum of 7°C (45°F) and a peak of 35°C (96°F). Both months share an average temperature of 20°C (68°F). However, September experiences significantly more rainfall, totaling 238 mm (9.4 in) over 25 days, compared to April's lighter precipitation of 79 mm (3.1 in) over just 12 days. Humidity levels are also comparable, with September at 84% and April at 80%. For more details on April weather, you can visit San Cristobal weather in April.
In comparing the weather of September and May, we can observe distinct differences. September experiences a temperature range with a minimum of 10°C (50°F) and a maximum of 29°C (85°F), averaging around 20°C (68°F). Additionally, this month is marked by significant rainfall, accumulating 238 mm (9.4 in) over 25 rainy days, along with higher humidity levels at 84%.
On the other hand, May boasts slightly warmer temperatures, with a minimum of 10°C (51°F) and a peak of 34°C (93°F), averaging 21°C (71°F). Rainfall is notably lower during this month, with 110 mm (4.3 in) across 19 days and slightly less humidity at 82%. This creates a more comfortable atmosphere, making May a preferred month for outdoor activities. For more detailed insights, check out San Cristobal weather in May.
In comparing the weather of September and June, September experiences slightly cooler temperatures with a minimum of 10°C (50°F) and an average of 20°C (68°F), while June offers warmer conditions with minimums around 13°C (55°F) and an average of 21°C (70°F). The maximum temperatures in June can reach up to 32°C (90°F), compared to September’s maximum of 29°C (85°F). Additionally, September sees more rainfall, accumulating 238 mm (9.4 in) across 25 days, whereas June has less precipitation at 192 mm (7.6 in) over 24 days. Humidity levels are also higher in September at 84%, compared to June's 79%. For a detailed look at the weather in June, visit San Cristobal weather in June.
In comparing the weather of September and July, we can see some notable differences. September tends to be slightly cooler, with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 29°C (85°F), while July offers milder weather with minimums of 14°C (57°F) and maximums around 28°C (83°F). Additionally, September experiences more frequent rain, with a total precipitation of 238 mm (9.4 in) over 25 days compared to July's 165 mm (6.5 in) over 26 days. Furthermore, the humidity in September is higher at 84%, compared to 72% in July, making the latter feel a bit more comfortable. For more detailed insights into July's weather, you can check San Cristobal weather in July.
September weather tends to be slightly cooler and wetter compared to August. In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 29°C (85°F), with an average of 20°C (68°F). In contrast, August experiences a narrower temperature range with minimums at 12°C (55°F) and maximums at 28°C (82°F), while also sharing a similar average temperature of 20°C (69°F). Rainfall in September is significantly higher, totaling 238 mm (9.4 in) over 25 days, compared to 188 mm (7.4 in) over 26 days in August. Additionally, September has a higher humidity level at 84%, making it feel more humid than August's 74%. For more details on August weather, check out San Cristobal weather in August.
September and October weather displays notable differences while still sharing some similarities. In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 29°C (85°F), with an average temperature of 20°C (68°F). This month experiences higher precipitation levels, with 238 mm (9.4 in) over 25 days and a humidity of 84%. In contrast, October sees a slight drop in temperatures, with minimums of 7°C (45°F) and an average of 18°C (65°F), yet it maintains the same maximum of 29°C (85°F). Precipitation decreases slightly to 232 mm (9.1 in) but occurs over fewer days, totaling 19, while humidity rises to 92%. For a detailed look at the weather in October, you can visit San Cristobal weather in October.
September and November showcase distinct differences in weather patterns. In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 29°C (85°F), with an average of 20°C (68°F). This month is characterized by high precipitation, totaling 238 mm (9.4 in), spread across 25 days, and an average humidity level of 84%. In contrast, November presents cooler temperatures, with minimums dropping to 0°C (32°F) and maximums reaching 28°C (82°F), yielding an average of 16°C (61°F). Notably, November experiences significantly less precipitation at 75 mm (2.9 in) over only 11 days, accompanied by a slightly higher humidity level of 91%. For further details, you can explore San Cristobal weather in November.
In September, the weather tends to be much warmer with an average temperature of 20°C (68°F), reaching highs of 29°C (85°F), and is characterized by high humidity at 84% and frequent rainfall, with precipitation occurring on 25 days and totaling 238 mm (9.4 in). In contrast, December brings a significant drop in temperature, with averages around 14°C (57°F) and a minimum of -2°C (29°F), despite having a maximum similar to September's at 28°C (82°F) on warmer days. Additionally, December experiences far less rain, with only 26 mm (1.0 in) falling over just 6 days, while humidity slightly increases to 91%. For more detailed information, check out San Cristobal weather in December.
As September arrives in San Cristobal, the weather distinctly shifts, bringing both warmth and significant rainfall. With average temperatures around 20°C, this month feels pleasantly mild, yet it's marked by high humidity levels of 84% which can lead to a muggy atmosphere. Unlike the drier months, September experiences frequent rain, averaging 238 mm across approximately 25 days, making it one of the wettest times of the year. This combination of warmth and moisture creates a lush and vibrant landscape, perfect for exploration, but travelers should be prepared for unexpected showers. For more insights into weather patterns, visit San Cristobal Climate.