Last updated: April 22, 2025
In September, San Sebastian del Oeste, Mexico, experiences a captivating blend of warm temperatures and significant rainfall. The maximum temperature can reach a balmy 31°C (87°F), while the average hovers around a comfortable 21°C (71°F), and the minimum can dip to 16°C (61°F). This month witnesses a remarkable precipitation total of 383 mm (15.1 in), occurring over approximately 28 days, resulting in a humidity level of 84% that adds to the region’s lush, verdant landscape. Visitors can expect a lush, tropical atmosphere, making September a unique time to explore the natural beauty of this charming Mexican town.
In September, San Sebastian del Oeste experiences a delightful blend of warmth and coolness, with temperatures ranging from a minimum of 16°C (61°F) to a pleasant maximum of 31°C (87°F). The average temperature hovers around 21°C (71°F), marking a transition from the hottest summer months into the milder weather of fall. As the month progresses, you can expect the warm afternoons to gently cool into refreshing evenings, making it an ideal time for outdoor activities and exploration. This slight dip in evening temperatures signals the changing seasons while still offering plenty of sunshine—perfect for enjoying the vibrant natural beauty of this charming Mexican town.
In September, San Sebastián del Oeste experiences a significant continuation of its rainy season, with 383 mm (15.1 in) of precipitation, nearly matching the record rainfall of the preceding month. This deluge occurs over 28 days, showcasing the area's transition into its wettest period. Following the torrential July and August, September maintains a consistent climate characterized by high moisture levels, contributing to the lush landscapes that define the region. As autumn approaches, the copious rains serve as both a rejuvenation for the local ecosystems and a reminder of the dramatic weather patterns that shape life in this picturesque Mexican town.
In September, San Sebastian del Oeste experiences its most humid month, with levels reaching 84%. This significant uptick follows a gradual increase from the drier months of April and March, where humidity dips to 42% and 46%, respectively. The trend clearly illustrates a shift as the region transitions from the milder humidity of late spring into the lushness of summer. By the time September arrives, the humidity peaks, reflecting the warm, tropical climate typical of this time of year, before starting a slight decline in the following months. This cycle showcases the vibrant interplay between climate and the lush beauty of this charming Mexican town.
In September, San Sebastian del Oeste continues to experience an extreme UV Index of 13, identical to the levels seen in the preceding months of July and August. With a burn time of just 10 minutes, the sun's intensity remains a pressing concern, urging residents and visitors alike to take necessary precautions when enjoying the outdoors. This trend of high UV levels marks a peak during the summer months, following a gradual decline that begins in October. As the year transitions towards winter, the UV Index is expected to drop, entering the very high category in the cooler months. For more detailed insights, check out the full San Sebastian del Oeste UV Index.
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As September rolls into San Sebastian del Oeste, the sun continues to shine, contributing 247 hours of radiant daylight—a charming continuation of the summer's warm embrace. This vibrant town typically experiences a gradual decline in sunshine hours as autumn approaches, showcasing a retreat from the peak of 348 hours in May. Following a summer of abundance, September’s light still holds a significant glow, even though it dips below the monthly averages seen earlier in the year. The transition from the lush green of summer to the vivid hues of autumn is beautifully punctuated by these sunlit days, making it an ideal time to enjoy the outdoors under the rich, golden sun of early fall.
As September rolls around in San Sebastian del Oeste, the chances of enjoying sunny weather dip significantly, with only a 15% likelihood of clear skies. This marks a stark contrast to the sunnier months earlier in the year, such as March, when the probability of sunshine peaks at 79%. Following the hot summer months, which see even lower chances with 15% in July and August, September settles into a pattern of overcast skies. While the crisp air might be refreshing, sun-seekers may want to temper their expectations as they embrace the transition into the cooler fall months, where the likelihood of sunshine gradually increases again in October to 32% and continues to rise through the year.
In September, San Sebastian del Oeste enjoys about 12 hours of daylight, a continuation of the trend seen through the late summer months when the days remain longer and vibrant. Following the peak brightness of May through July, which bask in 13 hours of sunlight, September marks a gentle transition as daylight begins to wane, echoing the shift towards autumn. This month’s consistent daylight mirrors the shortening hours experienced in both August and October, highlighting a gradual descent into the shorter days of the latter part of the year. As the landscape transforms with the changing seasons, visitors can still revel in ample sunshine before the days shorten further.
As September sweeps through San Sebastián del Oeste, the air takes on a gentle tranquility, with an average wind speed dipping to 1.1 m/s (2 mph). This marks the continuation of a gradual decline in wind intensity since the peak months of March and April, where breezes reached 1.7 m/s (4 mph), offering a refreshing contrast to the warmer days. The transition into autumn signifies not only a welcome relief from the summer heat but also a shift in the surrounding atmosphere, as wind patterns settle, creating a serene backdrop for the enchanting landscapes of this picturesque town. Despite the softer gusts, the essence of the September wind remains a soothing companion, rustling through the trees and inviting introspection amidst the natural beauty.
The weather in San Sebastian del Oeste 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 Sebastian del Oeste and find detailed weather information for every month.
September and January showcase stark differences in weather patterns. September typically experiences warmer temperatures, with a minimum of 16°C (61°F) and an average around 21°C (71°F), peaking at a maximum of 31°C (87°F). However, it is also characterized by significant rainfall, receiving 383 mm (15.1 in) over 28 days and high humidity at 84%. In contrast, January is much cooler, with a minimum temperature of 3°C (37°F) and an average of 17°C (62°F), reaching a maximum of 30°C (85°F). This month sees minimal precipitation of only 28 mm (1.1 in) over just 4 days, alongside lower humidity at 64%. For a detailed look at January weather in this region, visit San Sebastian del Oeste weather in January.
September and February showcase contrasting weather patterns in San Sebastian del Oeste. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 31°C (87°F), with an average of 21°C (71°F). The month is characterized by high humidity at 84% and considerable rainfall, totaling 383 mm (15.1 in) over 28 days. In stark contrast, February presents milder temperatures, with a minimum of 6°C (43°F), an average of 17°C (64°F), and a peak of 32°C (89°F). Precipitation is minimal in February at just 36 mm (1.4 in) over 3 days, accompanied by lower humidity at 57%. For more detailed information, visit San Sebastian del Oeste weather in February.
September and March present stark contrasts in weather conditions. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 31°C (87°F), with an average of 21°C (71°F). The month is notably wet, experiencing 383 mm (15.1 in) of precipitation over 28 days, along with high humidity levels at 84%. In contrast, March enjoys milder weather, with temperatures ranging from a low of 6°C (44°F) to the same maximum of 31°C (87°F), averaging 19°C (67°F). Precipitation is significantly lower at just 8 mm (0.3 in) over 2 days, and humidity drops to a comfortable 46%. For more detailed information, you can check out the San Sebastian del Oeste weather in March.
In comparing the weather conditions of September and April, it's evident that September is much wetter and more humid. With an average temperature of 21°C (71°F) and a maximum of 31°C (87°F), September experiences a significant amount of rainfall, totaling 383 mm (15.1 in) over 28 days, resulting in a humidity level of 84%. In contrast, April features milder temperatures, with a minimum of 7°C (45°F) and an average of 20°C (69°F). April is notably drier, receiving only 4 mm (0.2 in) of precipitation across the month, and boasts a much lower humidity of 42%. This stark difference highlights April’s pleasant and dry climate, making it an ideal time for outdoor activities. For more details on April weather, visit San Sebastian del Oeste weather in April.
In comparing the weather between September and May, notable differences emerge. September experiences a warmer average temperature of 21°C (71°F), peaking at a maximum of 31°C (87°F), while May has a similar average of 22°C (71°F) but can reach a higher maximum of 33°C (91°F). However, September is characterized by much heavier precipitation, totaling 383 mm (15.1 inches) over 28 days, which contrasts sharply with May's much drier climate, receiving only 25 mm (1.0 inch) over just 4 days. Additionally, September's humidity level is significantly higher at 84%, compared to May's more comfortable 51%. For a detailed look at the weather in May, visit San Sebastian del Oeste weather in May.
In comparing the weather between September and June, September tends to be more humid and wetter, with an average humidity of 84% and significant rainfall of 383 mm over 28 days. In contrast, June experiences a slightly lower average humidity of 74% and less precipitation at 195 mm, spread over 21 days. While daytime temperatures peak at a maximum of 33°C (92°F) in June, September offers a more moderate maximum of 31°C (87°F), with average temperatures closely aligned at 21°C (71°F) in September and 22°C (72°F) in June. For a detailed look into what to expect, check out San Sebastian del Oeste weather in June.
September and July exhibit similar average temperatures, with both months hovering around 21°C (71°F). However, September tends to be slightly warmer at its maximum, reaching up to 31°C (87°F), compared to July's maximum of 30°C (87°F). Precipitation is more prevalent in September, with 383 mm (15.1 in) over 28 days, compared to July's 360 mm (14.2 in) across 30 days. Additionally, September features higher humidity at 84%, compared to July's 79%. For a more detailed look at the weather trends, you can visit San Sebastian del Oeste weather in July.
In comparing the weather of September and August, we can observe a few noteworthy differences. September experiences slightly cooler temperatures, with an average of 21°C (71°F) compared to August's 22°C (71°F). Both months have similar maximum temperatures, peaking at around 30-31°C (87°F), but September has a higher minimum temperature of 16°C (61°F) versus August's 16°C (60°F). Precipitation levels are almost identical, with September receiving 383 mm (15.1 in) over 28 days, while August has 384 mm (15.1 in) spread across 30 days. Additionally, September exhibits higher humidity at 84%, compared to August's 81%. For a more detailed look at August weather, visit San Sebastian del Oeste weather in August.
In September, the weather in San Sebastian del Oeste is characterized by warmer temperatures, with minimums averaging around 16°C (61°F) and maximums reaching up to 31°C (87°F). The month sees significant rainfall, totaling 383 mm (15.1 inches) over 28 days, accompanied by high humidity levels of 84%. In contrast, October experiences slightly cooler temperatures, with minimums dropping to 13°C (55°F) while maintaining similar maximums of 31°C (88°F). Precipitation in October decreases significantly to 171 mm (6.7 inches) over 21 days, and humidity levels also lower to 75%. For more detailed weather information, you can visit San Sebastian del Oeste weather in October.
September in San Sebastian del Oeste is characterized by warmer temperatures, with a minimum of 16°C (61°F), an average of 21°C (71°F), and a maximum reaching up to 31°C (87°F). However, this month is also quite rainy, experiencing 383 mm (15.1 in) of precipitation over 28 days, resulting in high humidity levels of 84%. In contrast, November offers a cooler climate, with a minimum temperature of 9°C (48°F), an average of 19°C (67°F), and a maximum of 30°C (86°F). Precipitation drops significantly to just 42 mm (1.7 in) across 6 days, and the humidity decreases to 71%. For a more detailed look at the weather in November, check out San Sebastian del Oeste weather in November.
September and December present contrasting weather patterns in San Sebastian del Oeste. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 31°C (87°F), with an average of 21°C (71°F). This month also sees significant rainfall, with 383 mm (15.1 in) of precipitation occurring over 28 days and humidity levels reaching a high of 84%. In contrast, December experiences milder temperatures, ranging from a minimum of 6°C (44°F) to a maximum of 29°C (85°F), with an average of 17°C (63°F). The month is characterized by much lower rainfall, totaling only 34 mm (1.3 in) across just 4 days, and a decrease in humidity to 74%. For more detailed information, you can read about San Sebastian del Oeste weather in December.
As September unfolds in San Sebastian del Oeste, the weather notably shifts, bringing a blend of warmth and humidity that sets it apart from other months. The temperatures typically hover around a comfortable average, but the high humidity—at an impressive 84%—can create a sultry atmosphere. The month is characterized by frequent rainfall, with showers gracing nearly every day, contributing to a substantial increase in precipitation. This lush, wet environment contrasts sharply with the drier and sunnier conditions prevalent in the preceding summer months. For an in-depth exploration of the climate nuances in this enchanting destination, visit San Sebastian del Oeste Climate.