Last updated: April 22, 2025
September in San Juan Cosala, Mexico, showcases a mild climate characterized by an average temperature of 21°C (70°F), with daily highs reaching 29°C (84°F) and lows dropping to 16°C (60°F). This month is marked by significant precipitation, totaling 185 mm (7.3 in) over approximately 22 days, contributing to the region's high humidity levels of around 84%. Visitors can expect a vibrant landscape, as the frequent rains nourish the natural beauty of this charming locale, making it a unique time to experience the lush surroundings amidst warm temperatures.
In September, San Juan Cosala experiences mild temperatures that reflect the transitioning seasons. The minimum temperature rises to 16°C (60°F), while the average hovers around 21°C (70°F)—a pleasant, refreshing climate perfect for outdoor activities. With a maximum temperature reaching 29°C (84°F), the warmth is comfortable, allowing for both relaxation and adventure. Compared to the previous summer months, September marks a slight dip in the highest temperatures, but retains a delightful warmth that invites visitors to enjoy the natural beauty of the area before the cooler autumn months set in. As the month progresses, you'll find that the air becomes crisper, hinting at the change of seasons while still basking in the sun's gentle embrace.
In September, San Juan Cosala experiences a notable continuation of the rainy season, with precipitation reaching 185 mm (7.3 in) over 22 days. This not only highlights a slight decrease from August’s peak rainfall of 191 mm (7.5 in) but also indicates the area's consistent pattern of heavy rains from mid-summer into early fall. The significant rainfall is part of a broader trend observed from June through September, where monthly totals remain high, often exceeding 100 mm. As the region transitions into October, a sharp decline in precipitation is expected, dropping to 62 mm (2.4 in), showcasing the typical seasonal shift away from the intense rains of the summer months.
As summer transitions into autumn, September in San Juan Cosala experiences a noticeable rise in humidity, reaching an average of 84%. This marks a peak for the year, following the gradual increase observed from the drier months of April (42%) through to August (81%). The notable jump from August to September signifies a shift, as the lush surroundings are enriched by the consistently high moisture levels, providing a vibrant landscape. After September, humidity levels gradually decline again, settling at 75% in October. This cyclical pattern highlights the region's unique climate, offering both a lush, humid atmosphere during late summer and a mild reduction as fall approaches.
In September, San Juan Cosala experiences a UV Index of 14, placing it in the extreme exposure category with a critical burn time of just 10 minutes. This marks the peak of a summer trend, where UV levels remain high from February through October—consistently urging caution against skin damage. Notably, the UV Index fluctuates from 9 to 14 during the year, reflecting a seasonal pattern that emphasizes the importance of sun protection, particularly in the brighter months. As autumn nears, the UV Index begins to decline, sliding to 12 in October before dropping further in November. For those planning to bask in the sun, it's essential to stay informed and prepared. For more details on the UV Index in this picturesque locale, visit San Juan Cosala UV Index.
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As summer wanes and September unfolds in San Juan Cosala, the region enjoys a delightful 286 hours of sunshine. While this marks a slight decrease from the sun-drenched days of May and June, it still stands as a testament to the area's vibrant climate. The consistency of sunny days throughout the year, peaking in May with 342 hours, shows that residents and visitors alike can savor ample sunlight even as autumn approaches. With sunshine hours progressively tapering off heading into the cooler months, San Juan Cosala remains a charming retreat where the warmth of the sun continues to inspire outdoor adventures and leisurely strolls, making every September day as bright as the last.
In San Juan Cosala, the likelihood of sunny weather varies significantly throughout the year, peaking in the early months. February stands out with an impressive 85% chance of sunshine, gradually tapering off through the spring months, such as March at 81% and April at 73%. As the summer approaches, the sunshine chances plummet dramatically, with June to August experiencing only 20% to 18% likelihood of clear skies. September continues this trend of limited sun, maintaining a minimal 18% chance, signaling that the rainy season persists into early fall. Interestingly, the sunshine probability begins to climb again in October, hinting at a gradual return to sunnier days as autumn settles in. Overall, while September may not offer much sun, the promise of brighter days ahead keeps hopes alive for visitors and locals alike.
In September, San Juan Cosala enjoys a delightful 12 hours of daylight, maintaining the trend of gradually decreasing sunlight that began in late summer. This month mirrors the daylight durations of both April and August, indicating a balanced transition as the vibrant hues of nature prepare for the cooler months ahead. Following the peak of 13 hours experienced during May through July, the daylight begins to recede, hinting at the approaching autumn. As the days shorten, the shift provides a serene backdrop for visitors and residents alike to relish the beauty of this charming lakeside town amidst its lush surroundings.
In September, the gentle breeze of San Juan Cosala reflects a continuation of the serene summer atmosphere, with average wind speeds holding steady at 1.3 m/s (3 mph). This slight drop from the warmer months signals a transition, as the winds begin to whisper of the approaching autumn. Throughout the year, wind speeds fluctuate modestly—peaking in April at 1.9 m/s (4 mph) before gradually cooling down in the later months. The consistent low winds in September create a tranquil setting, perfect for leisurely walks along the lakeside or enjoying the soft rustle of leaves, enhancing the charm of this picturesque Mexican town.
The weather in San Juan Cosala 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 Juan Cosala and find detailed weather information for every month.
In September, the weather is notably warmer and more humid, with average temperatures ranging from a minimum of 16°C (60°F) to a maximum of 29°C (84°F). This month also sees substantial precipitation, totaling 185 mm (7.3 in) over approximately 22 days, leading to a humidity level of 84%. In stark contrast, January offers a much cooler climate, where temperatures fluctuate between a minimum of 5°C (41°F) and a maximum of 29°C (85°F), with an average of 17°C (62°F). Notably, January experiences minimal precipitation, only 6 mm (0.2 in) over just one day, resulting in lower humidity at 64%. For more detailed information about January weather, you can visit San Juan Cosala weather in January.
September and February present a striking contrast in weather conditions. In September, temperatures range from a minimum of 16°C (60°F) to a maximum of 29°C (84°F), with an average of 21°C (70°F). This month is characterized by high humidity at 84% and considerable rainfall, totaling 185 mm (7.3 inches) over approximately 22 days. In contrast, February sees cooler temperatures, with a minimum of 5°C (42°F) and a maximum of 31°C (87°F), averaging 18°C (65°F). This month enjoys significantly less precipitation, only 10 mm (0.4 inches) over about 2 days, and lower humidity at 57%. For a detailed look at February's climate, you can check San Juan Cosala weather in February.
September and March present contrasting weather patterns. In September, temperatures range from a minimum of 16°C (60°F) to a maximum of 29°C (84°F), with an average of 21°C (70°F). This month is characterized by significant rainfall, with 185 mm (7.3 in) of precipitation occurring over 22 days, and humidity levels hitting 84%. In contrast, March experiences a broader temperature range, with minimums around 9°C (48°F) and maximums reaching 33°C (92°F), while maintaining the same average of 21°C (70°F). Remarkably, March sees minimal rainfall, with only 2 mm (0.1 in) recorded over zero days and a much lower humidity of 46%. For more detailed insights into the weather in March, visit San Juan Cosala weather in March.
The weather in September is characterized by milder temperatures, with a minimum of 16°C (60°F) and a maximum of 29°C (84°F), resulting in an average of 21°C (70°F). However, this month also experiences significant rainfall, with 185 mm (7.3 in) spread over 22 days, coupled with high humidity levels of 84%. In contrast, April boasts a warmer average temperature of 22°C (73°F), with a higher maximum of 33°C (92°F) and a pleasant minimum of 10°C (50°F). Notably, April has very little precipitation, recording just 1 mm (0.0 in) and no rainy days, alongside a much drier humidity level of 42%. For a more comprehensive look at the weather conditions during this month, you can explore San Juan Cosala weather in April.
When comparing the weather in September and May, notable differences emerge. September tends to be more humid, with an average temperature of 21°C (70°F) and high levels of precipitation totaling 185 mm (7.3 in) over 22 days, resulting in a damp atmosphere. In contrast, May showcases warmer temperatures, with averages reaching 24°C (75°F) and maximums soaring to 35°C (96°F), while experiencing significantly less rain at only 17 mm (0.7 in) across just 4 days, leading to a drier, more comfortable ambiance. For more insights on May weather patterns, check out San Juan Cosala weather in May.
When comparing the weather in September and June, there are notable differences in temperature and precipitation. September has a minimum temperature of 16°C (60°F) and reaches an average of 21°C (70°F), peaking at 29°C (84°F), with high humidity at 84%. In contrast, June is slightly warmer, with a minimum of 15°C (60°F), an average of 23°C (73°F), and a maximum of 35°C (96°F). Precipitation is also greater in September, totaling 185 mm (7.3 in) over 22 days, compared to June's 112 mm (4.4 in) over 16 days. For more detailed information on June weather, you can visit San Juan Cosala weather in June.
When comparing the weather in September and July, both months exhibit similar average temperatures, with September having a minimum of 16°C (60°F) and an average of 21°C (70°F), while July has a slightly lower minimum of 15°C (60°F) and the same average. July peaks at a maximum of 30°C (87°F), which is slightly higher than September's maximum of 29°C (84°F). Precipitation levels in September reach 185 mm (7.3 in) over 22 days, while July sees marginally less rain at 179 mm (7.0 in) but over more days—26 in total. Additionally, September's humidity is higher at 84%, compared to July's 79%. For a detailed look at the weather patterns, you can visit San Juan Cosala weather in July.
In comparing the weather of September and August, both months reveal a similar average temperature of 21°C (70°F), but September experiences slightly warmer minimum and maximum temperatures, ranging from 16°C (60°F) to 29°C (84°F) compared to August's 14°C (58°F) to 29°C (85°F). However, September is characterized by increased rainfall, with 185 mm (7.3 in) over 22 days, while August has 191 mm (7.5 in) across 26 days, making both months quite wet, though August sees a bit more precipitation overall. Interestingly, September also has a higher humidity level at 84%, compared to August's 81%. For a detailed look at August weather, you can visit San Juan Cosala weather in August.
September and October present a noticeable shift in weather patterns. In September, temperatures range from a minimum of 16°C (60°F) to a maximum of 29°C (84°F), with an average of 21°C (70°F). However, this month is characterized by significant rainfall, totaling 185 mm (7.3 in) over 22 days, and high humidity at 84%. In contrast, October experiences slightly cooler temperatures, with a minimum of 12°C (53°F), an average of 20°C (69°F), and a peak of 30°C (86°F). Precipitation also decreases substantially to 62 mm (2.4 in) over just 11 days, and humidity drops to 75%. For more detailed insights into October's weather specifics, check out San Juan Cosala weather in October.
September and November present contrasting weather conditions. In September, temperatures range from a minimum of 16°C (60°F) to a maximum of 29°C (84°F), with an average of 21°C (70°F). This month is marked by significant rainfall, receiving 185 mm (7.3 in) over 22 days, and a high humidity level of 84%. In contrast, November experiences cooler temperatures, with a minimum of 7°C (45°F), an average of 19°C (66°F), and a similar maximum of 29°C (85°F). However, it enjoys much drier conditions, with only 18 mm (0.7 in) of precipitation over just 2 days and a lower humidity of 71%. For more details on the weather in November, visit San Juan Cosala weather in November.
September and December present contrasting weather patterns. September features warm temperatures, with a minimum of 16°C (60°F) and an average of 21°C (70°F), peaking at 29°C (84°F). This month also sees considerable rainfall, totaling 185 mm (7.3 in) across 22 days, accompanied by high humidity at 84%. In contrast, December experiences cooler conditions, with temperatures dropping to a minimum of 5°C (42°F) and averaging 17°C (63°F), while still reaching a pleasant maximum of 28°C (83°F). Rainfall is scarce, with only 5 mm (0.2 in) over just 1 day, and humidity decreases to 74%. For more details about December weather, check out San Juan Cosala weather in December.
September in San Juan Cosala ushers in a distinct climate profile, marked by increased humidity and frequent rainfall, setting it apart from the drier months of the year. With temperatures averaging around 21°C, residents and visitors experience a mild warmth that contrasts with the cooler breezes often felt in the winter months. The significant precipitation, averaging 185 mm over 22 days, transforms the landscape, nurturing vibrant greenery and creating a lush environment. This month encapsulates a tropical ambiance, making it a unique time to appreciate the natural beauty of San Juan Cosala. For a deeper understanding of the region's yearly climate patterns, explore San Juan Cosala Climate.