Last updated: April 22, 2025
September in Alamos, Mexico is characterized by a warm and humid climate, with temperatures soaring to a maximum of 40°C (104°F) and an average hovering around 28°C (82°F). The month experiences a marked increase in rainfall, with a total precipitation of 100 mm (3.9 in) over approximately 14 days, contributing to the humidity level of 82%. This blend of heat and moisture creates a lush atmosphere, making September a unique time to experience the natural beauty and vibrant landscapes of Alamos.
In September, Alamos, Mexico, experiences a delightful blend of warmth as summer begins to fade. With a minimum temperature of 17°C (63°F) and an average of 28°C (82°F), the days are pleasantly warm, while highs can reach up to 40°C (104°F). This month marks a slight drop from the sweltering heat of the preceding summer, yet it retains a vibrant atmosphere perfect for outdoor exploration. The transition into fall brings a refreshing sense of change, making September a unique time to enjoy the region's natural beauty and rich cultural experiences.
September in Alamos, Mexico, marks a significant transition as the rainy season approaches its crescendo. With 100 mm (3.9 in) of precipitation spread across 14 days, it highlights a marked increase compared to the drier spring months. This surge follows a dramatic rainfall pattern, where July and August have already set the stage with 152 mm (6.0 in) and 142 mm (5.6 in), respectively. This trend signals a peak in monsoonal activity, revitalizing the landscape and sustaining local agriculture. While the frequency of rainy days in September decreases slightly from the intense summer months, the substantial amounts of rainfall contribute to a lush, vibrant environment, bridging the gap to the drier autumn months ahead.
In September, Alamos experiences a notable spike in humidity, reaching 82%, as the summer heat begins its transition to more temperate autumn conditions. This increase follows a trend of rising humidity from June's 50% to the peak seen in August at 81%. The elevated levels in September signal the lingering effects of the rainy season, contributing to the overall moisture in the air. As the month progresses, humidity levels remain relatively high compared to earlier months, such as April with just 51%. This gradual ascent emphasizes the climatic shift that defines Alamos, making September one of the most humid times of the year, as it gracefully bridges the intense summer and the cooler fall.
As September rolls around in Alamos, Mexico, the UV Index remains notably high at 11, categorizing it as extreme. This indicates a slight decrease from the summer’s peak of 12, but the risk of harm from unprotected sun exposure is still significant, with a burn time of just 10 minutes. The trend throughout the year shows a consistent increase in UV Index levels, particularly during the peak months of April to August, where values reached their maximum. Post-summer, the index begins to decline gradually, signaling the approach of a milder October. For more detailed information on UV trends and safety, check out Alamos UV Index.
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September in Alamos, Mexico, captures the transition from the vibrant summer months to the gentle embrace of autumn. With 292 hours of sunshine, it marks a slight dip from the peak of 366 hours in May, while still basking in an impressive glow. The month showcases the lingering warmth of summer, as daylight gradually lessens but remains plentiful when compared to the cooler months ahead. This trend of diminishing sunshine continues into October, yet the festive spirit of Alamos thrives on, promising beautiful days and memorable sunsets against the backdrop of its historic charm. As the year progresses, September stands out as a perfect blend of warmth and the anticipation of change, inviting visitors to experience the beauty of the season.
In Alamos, Mexico, the likelihood of sunny weather in September is about 56%, marking a shift towards more variable conditions as the monsoon season begins to wane. This percentage indicates a slight dip in sunny days compared to the peak of 79% in May, but it still shows a gradual improvement from the low points in the summer months of July and August, which see only 37% and 36% sunshine, respectively. As the year progresses into October, the chances of sunshine rebound significantly to 82%, suggesting that while September may offer a mix of sun and clouds, it sets the stage for sunnier days ahead. Overall, those visiting Alamos in September can expect a balanced weather experience, ideal for exploring the town's rich heritage amidst occasional sunbreaks.
As September unfolds in Alamos, Mexico, daylight begins to gracefully wane, offering around 12 hours of sunshine each day. This month marks a subtle transition from the peak brightness of summer, which boasts 13 hours of daylight in the preceding months of May through August. Following September, daylight hours steadily decrease, with October and November bringing 11 and 10 hours respectively, hinting at the approaching winter. This rhythmic ebb and flow of daylight not only influences the daily activities of the residents but also showcases the harmonious cycle of nature, reminding us of the fleeting beauty of each season in this charming locale.
September in Alamos, Mexico, brings a gentle embrace of soft breezes, with average wind speeds dropping to 1.2 m/s (3 mph). Following a gradual decline from the higher averages seen in April and May, where the winds reached 2.0 m/s (5 mph), September's calmness is reminiscent of the swaying tranquility of late summer. This respite in wind speed marks a shift in the season, transitioning from the milder gusts of spring and summer into the stillness of autumn. Interestingly, the winds maintain a steady ease that persists into the following months, setting the stage for Alamos's serene landscape as it prepares for the cooler days ahead.
The weather in Alamos 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 Alamos and find detailed weather information for every month.
September and January present strikingly different weather patterns. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 40°C (104°F), with an average of 28°C (82°F). This month also sees significant rainfall, accumulating to about 100 mm (3.9 in) over 14 days, coupled with high humidity levels at 82%. In contrast, January boasts much cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 34°C (93°F), while the average temperature settles at 17°C (63°F). Precipitation is minimal at 17 mm (0.7 in) over just 2 days, and humidity is lower at 74%. For a closer look at the January weather specifics, you can check out Alamos weather in January.
September and February present contrasting weather conditions. In September, temperatures range from a minimum of 17°C (63°F) to a scorching maximum of 40°C (104°F), with an average of 28°C (82°F). This month is characterized by high humidity at 82% and significant precipitation of 100 mm (3.9 in) over 14 days, contributing to a muggy atmosphere. In stark contrast, February enjoys milder temperatures, with a minimum of 1°C (34°F), an average of 18°C (65°F), and a maximum of 35°C (95°F). This month typically experiences much less rainfall, averaging only 18 mm (0.7 in) over 3 days, along with lower humidity at 67%. For a detailed look at February weather, you can visit Alamos weather in February.
In September, the weather is characterized by high temperatures, with a minimum of 17°C (63°F) and an average of 28°C (82°F), reaching up to a scorching 40°C (104°F). This month also sees considerable precipitation, with about 100 mm (3.9 in) spread over 14 days and high humidity levels at 82%. In contrast, March features much cooler temperatures, with a minimum of 5°C (41°F), an average of 21°C (70°F), and a maximum of 36°C (98°F). Additionally, March experiences minimal precipitation of just 10 mm (0.4 in) on a single day, alongside lower humidity levels of 60%. For more insights on the weather in March, check out Alamos weather in March.
September and April present notably different weather patterns. September has a warm climate with minimum temperatures around 17°C (63°F) and average highs reaching up to 28°C (82°F), but it can soar to a maximum of 40°C (104°F). The month is also marked by significant humidity at 82% and frequent precipitation, totaling 100 mm (3.9 in) over 14 days. In contrast, April offers a milder experience, with minimum temperatures dropping to 8°C (48°F) and an average of 24°C (76°F), peaking at a maximum of 39°C (103°F). Notably, April is dry, recording no precipitation and a much lower humidity level of 51%. For more insights on the weather in April, you can check Alamos weather in April.
In comparing the weather between September and May, September tends to be warmer and more humid. With average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 40°C (104°F) and experiencing significant rainfall of about 100 mm (3.9 in) over 14 days, September showcases a lush, albeit sticky climate due to its humidity level of 82%. In contrast, May is slightly cooler with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 43°C (109°F) but boasts a completely dry environment, as it registers no precipitation and humidity sits at a more comfortable 47%. For more details about May weather, check Alamos weather in May.
When comparing the weather in September and June, notable differences emerge. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 40°C (104°F), with an average of 28°C (82°F). This month also sees higher humidity levels at 82% and approximately 100 mm (3.9 in) of precipitation over about 14 days, indicating a wetter season. In contrast, June tends to be hotter, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 44°C (111°F) and an average of 30°C (86°F). Notably, June is much drier, experiencing only 31 mm (1.2 in) of precipitation over just 2 days, along with a significantly lower humidity of 50%. For more detailed information, you can refer to Alamos weather in June.
In comparing the weather of September and July, September exhibits slightly milder temperatures with a minimum of 17°C (63°F) and an average of 28°C (82°F), while July has warmer overnight lows at 22°C (71°F) and an average of 29°C (85°F). Both months reach similar maximum temperatures, with July peaking at 41°C (105°F) and September at 40°C (104°F). However, September experiences more rainfall, totaling 100 mm (3.9 in) over 14 days compared to July's 152 mm (6.0 in) spread over 20 days. Humidity is higher in September at 82%, compared to July’s 70%, which may influence the overall comfort levels. For more details, refer to Alamos weather in July.
In comparing the weather between August and September, we see some notable differences. While both months experience similar maximum temperatures, with September peaking at 40°C (104°F) and August at 40°C (105°F), September generally has a lower minimum temperature of 17°C (63°F) compared to August's 21°C (71°F). The average temperature in September is slightly lower at 28°C (82°F) compared to August's 29°C (84°F). Additionally, September sees less precipitation, recording 100 mm (3.9 in) over 14 days, while August experiences higher rainfall of 142 mm (5.6 in) on 17 days. Humidity remains fairly consistent, with September at 82% and August at 81%. For a closer look at August weather specifics, you can visit Alamos weather in August.
September weather is characterized by warmer temperatures with a minimum of 17°C (63°F) and an average of 28°C (82°F), peaking at a scorching 40°C (104°F). The month also sees considerable precipitation, averaging 100 mm (3.9 in) over 14 days, along with relatively high humidity at 82%. In contrast, October experiences a significant drop in minimum temperatures, dipping to 8°C (46°F), yet maintaining a similar average of 27°C (80°F) and a maximum temperature that slightly surpasses September at 41°C (105°F). Precipitation falls dramatically to only 23 mm (0.9 in) over just 2 days, with humidity relatively lower at 78%. For more detailed insights, you can check Alamos weather in October.
In September, the weather is significantly warmer, with temperatures ranging from a minimum of 17°C (63°F) to a scorching maximum of 40°C (104°F) and an average temperature of 28°C (82°F). This month also sees higher humidity levels at 82% and more frequent rainfall, with precipitation occurring over 14 days and totaling 100 mm (3.9 in). In contrast, November experiences much cooler conditions, with temperatures dipping to a minimum of 7°C (45°F) and an average of 22°C (72°F), while still reaching a maximum of 39°C (102°F). The month is considerably drier, with only 40 mm (1.6 in) of precipitation over just 2 days, and a slightly lower humidity level at 78%. For more detailed information, check out Alamos weather in November.
September and December showcase stark contrasts in weather patterns. In September, temperatures swing from a minimum of 17°C (63°F) to a sweltering maximum of 40°C (104°F), with an average of 28°C (82°F). This month also experiences significant rainfall, with around 100 mm (3.9 in) of precipitation spread over 14 days, coupled with a high humidity level of 82%. Conversely, December offers much cooler temperatures, ranging from a minimum of 2°C (36°F) to a maximum of 32°C (90°F), with a milder average of 18°C (64°F). Precipitation in December is minimal, at just 23 mm (0.9 in) over 2 days, and humidity remains relatively stable at 80%. For more insights into the weather during this month, you can check out Alamos weather in December.
As September arrives in Alamos, the weather takes a noticeable turn, presenting a blend of warmth and humidity that sets it apart from other months. While the temperatures can soar to a maximum of 40°C, the average remains comfortably at 28°C, providing a warm embrace during the day and cooler nights. With higher humidity levels and an increase in precipitation—notably marked by about 14 rainy days—September offers a unique, lush backdrop that contrasts sharply with the dry seasons. This combination of warmth, moisture, and vibrant greenery makes September an exceptional time to experience Alamos. For more insights into the region's diverse weather patterns, visit Alamos Climate.