Last updated: April 22, 2025
San Carlos, Mexico in September showcases a warm and inviting climate with maximum temperatures reaching 36°C (98°F) and an average of 23°C (75°F), making it ideal for sun-seekers. The nights offer a cooler respite, with minimum temperatures dipping to 11°C (52°F). However, visitors should be prepared for some moisture, as the region experiences approximately 81 mm (3.2 in) of rainfall over 10 days, paired with a humidity level of 75%. This unique blend of warmth and occasional rain creates a vibrant atmosphere, perfect for enjoying the natural beauty and activities San Carlos has to offer.
In September, San Carlos, Mexico, begins to ease into fall with a noticeable shift in temperatures. The month boasts a minimum of 11°C (52°F) and a comfortable average of 23°C (75°F), peaking at a still-warm 36°C (98°F). Compared to the sweltering summer months, where temperatures regularly exceeded 39°C (102°F), September offers a pleasant change, encouraging outdoor activities amidst the warm sun. This transitional month not only provides a reprieve from the intense heat but also marks the beginning of milder evenings, making it an ideal time to experience the beauty of San Carlos with its stunning landscapes and vibrant sunsets.
September marks a significant shift in precipitation patterns in San Carlos, Mexico, as the region experiences its heaviest rainfall of the year. With 81 mm (3.2 in) of rain spread over 10 days, this month not only surpasses the prior months but also highlights a transition into the wetter season. This increase is particularly notable compared to the preceding months, where rainfall gradually built up from 11 mm (0.4 in) in January to 57 mm (2.2 in) in August. The surge in precipitation during September serves as a reminder of the region's tropical climate, paving the way for lush landscapes and vibrant ecosystems as the year moves towards its close. As the rainfall tapers off in October, it leaves behind a freshened environment, ready to embrace the milder, drier months ahead.
As September arrives in San Carlos, Mexico, the humidity experiences a noticeable uptick, reaching 75%, mirroring the high levels seen in January. This suggests a seasonal shift as summer transitions to fall, bringing with it the increased moisture often associated with the region's warm and humid months. While humidity levels dipped during the mid-summer peak, they remain above 60% consistently throughout the year, with October and November expected to climb even higher, maxing out at 85%. This trend illustrates a general pattern of rising humidity towards the end of the year, hinting at a lush, tropical atmosphere that characterizes the region.
September in San Carlos, Mexico, continues the trend of extreme UV exposure, maintaining a high UV Index of 12. This level indicates a significant risk of harm from unprotected sun exposure, with a burn time of just 10 minutes. Following the peak months of April through August, which also saw an Index of 13, September's UV levels remain notably intense, reminding residents and visitors alike of the importance of sun safety. As autumn approaches, the UV Index begins to decline, but for now, it's crucial to stay protected during those sunny days. For more detailed information, visit the San Carlos UV Index.
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September in San Carlos, Mexico, offers a delightful balance of sunshine, with 304 hours of bright, sunny days illuminating the month. This figure is a graceful tapering from the peak sunlight of July and August, which boast over 360 hours of sun each. The trend in the gradual decline of sunlight hours from the summer peak signals the transition into autumn, yet September retains a significant warmth, making it an ideal time for outdoor activities. As the year progresses, the sunny days begin to wane, but with nearly one-third of the month still basking in golden rays, September perfectly encapsulates the lingering spirit of summer while hinting at the cozy comforts of the approaching fall.
In San Carlos, Mexico, September boasts a promising 71% chance of sunny weather, continuing a trend of relatively high sunshine that begins in late spring. Following the brighter months of May and June, which provide the best odds of sun at 75% and 67% respectively, September holds its ground with statistics comparable to the months that precede and follow it. While August dips to a mere 46%, the return to sunnier days in September and October—both at 71%—indicates that the region enjoys a delightful transition into autumn, perfect for outdoor activities and soaking up the warmth of the sun. This consistent sunshine makes September an appealing choice for those seeking a bright getaway.
In San Carlos, Mexico, the daylight duration showcases an intriguing seasonal rhythm throughout the year. Starting at 10 hours in January, daylight gradually increases to a peak of 13 hours from May to August, providing ample time for outdoor activities and exploration. As summer transitions into fall, September witnesses a slight decrease, returning to 12 hours of daylight. This moderate decline continues into October, bringing shorter days as the year progresses again towards winter with 11 hours in October and ultimately settling back to 10 hours in November and December. Overall, the pattern highlights a vibrant summer abundance of sunlight, before gently easing into the shorter days of winter.
As September rolls into San Carlos, Mexico, the winds begin to soften, with average speeds around 2.5 m/s (6 mph). This slight dip follows a summer of stronger breezes, peaking in March at 4.0 m/s (9 mph) before steadily decreasing through the warmer months. With August's winds at 2.4 m/s (5 mph), September maintains this gentle flow, offering a refreshing calmness that hints at the transition into fall. Interestingly, this pattern reveals a seasonal rhythm, where the wind, while consistently mild during September, gradually picks up again into October, echoing the natural ebb and flow of coastal life in this picturesque locale.
The weather in San Carlos 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 Carlos and find detailed weather information for every month.
September and January present starkly contrasting weather conditions. In September, temperatures range from a pleasant 11°C (52°F) to a sweltering 36°C (98°F), with an average of 23°C (75°F). This month experiences significant rainfall, totaling 81 mm (3.2 in) over approximately 10 days, while humidity remains high at 75%, creating a tropical feel.
In comparison, January brings a dramatic drop in temperatures, with a low of -7°C (19°F) and a high of 28°C (82°F), averaging around 10°C (50°F). Precipitation in this month is minimal, averaging just 11 mm (0.4 in) across only 2 days, although humidity stays steady at 75%. This shift from the wet and warm ambiance of September to the crisp and dry characteristics of January is indicative of seasonal change. For more details on January weather, visit San Carlos weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a mild 11°C (52°F) at night to a scorching 36°C (98°F) during the day, with an average of 23°C (75°F). This month also sees significant rainfall, with about 81 mm (3.2 in) of precipitation spread over 10 days and humidity levels at 75%. In stark contrast, February experiences much colder temperatures, ranging from a minimum of -11°C (13°F) to a maximum of 31°C (88°F), with an average of 13°C (56°F). Rain is scarce during this month, accumulating only 9 mm (0.4 in) over just 2 days, and humidity remains relatively low at 72%. For a more detailed look at February's weather, check out San Carlos weather in February.
September and March present a striking contrast in weather patterns. In September, temperatures range from a mild 11°C (52°F) at night to a sweltering maximum of 36°C (98°F) during the day, with an average of 23°C (75°F). The month is characterized by significant humidity at 75% and an average of 81 mm (3.2 in) of precipitation spread over 10 days, making it a wetter and more humid time. In contrast, March experiences cooler temperatures, with a minimum of -2°C (28°F) and a maximum of 34°C (94°F), averaging 18°C (64°F). This month sees much less rainfall, with only 6 mm (0.2 in) over just 2 days and lower humidity at 62%. For more details about the weather in this particular month, you can visit San Carlos weather in March.
When comparing the weather in September and April, notable differences emerge in both temperature and precipitation. September tends to be warmer, with average temperatures around 23°C (75°F) and maximums reaching up to 36°C (98°F), while April features a slightly cooler average of 22°C (71°F) and maximums reaching 35°C (95°F). However, September experiences significantly higher humidity at 75% compared to April's more comfortable 62%. Additionally, September receives more rainfall, with an average of 81 mm (3.2 in) spread over 10 days, whereas April enjoys a much drier climate, only seeing about 9 mm (0.4 in) of rain over just 2 days. For more detailed information on April weather, you can check San Carlos weather in April.
September and May present distinct weather patterns, with September featuring a wider range of temperatures, from a minimum of 11°C (52°F) to a maximum of 36°C (98°F) and an average of 23°C (75°F). In contrast, May typically sees slightly cooler temperatures, with a minimum of 9°C (49°F) and a maximum of 39°C (102°F), along with a higher average of 26°C (79°F). Rainfall is more frequent in September, averaging 81 mm (3.2 in) over about 10 days, whereas May experiences significantly less precipitation at only 16 mm (0.6 in) over 4 days. Humidity levels are also higher in September, at 75%, compared to May's 69%. For more detailed information on weather specifics during May, you can check San Carlos weather in May.
When comparing the weather in September and June, we notice some distinct differences. September offers a wider temperature range, with minimums around 11°C (52°F) and maximums reaching up to 36°C (98°F), while June typically experiences warmer averages, ranging from a minimum of 15°C (59°F) to a maximum of 40°C (104°F). Additionally, September sees more precipitation, with 81 mm (3.2 in) falling over approximately 10 days, compared to June's 45 mm (1.8 in) over just 6 days. Humidity levels are quite similar, with September slightly higher at 75% compared to June's 73%. For a more detailed look at June's climate, check out San Carlos weather in June.
When comparing the weather in September and July, September tends to be cooler overall, with minimum temperatures dropping to 11°C (52°F) and average temperatures at 23°C (75°F). In contrast, July features warmer conditions, with minimum temperatures around 17°C (63°F) and average temperatures reaching 27°C (81°F). Additionally, July experiences higher maximum temperatures, peaking at 39°C (103°F) compared to September's maximum of 36°C (98°F). Precipitation is also notably different; September receives more rainfall at 81 mm (3.2 in) across 10 days, while July has only 32 mm (1.3 in) over 7 days. Humidity levels are higher in September at 75%, compared to July's 67%. For more detailed information about July weather, you can visit San Carlos weather in July.
In comparing the weather between September and August, September is characterized by slightly cooler temperatures, with a minimum of 11°C (52°F) and an average of 23°C (75°F), while August experiences a higher minimum of 15°C (59°F) and an average of 27°C (80°F). The maximum temperatures are also higher in August, reaching 38°C (100°F) compared to September's maximum of 36°C (98°F). Additionally, September sees increased precipitation, totaling 81 mm (3.2 in) over 10 days, compared to 57 mm (2.2 in) over 9 days in August. The humidity is higher in September at 75%, compared to August's 62%. For more detailed information on August weather, you can visit San Carlos weather in August.
September and October present a notable shift in weather characteristics. September typically features warmer temperatures, with a minimum of 11°C (52°F) and an average of 23°C (75°F), reaching highs of 36°C (98°F). It also experiences significant rainfall, totaling 81 mm (3.2 in) across about 10 days, resulting in a humidity level of 75%. In contrast, October sees cooler temperatures, with a minimum dipping to -1°C (31°F) while maintaining a mild average of 20°C (68°F) and a maximum of 34°C (93°F). Precipitation decreases considerably to 28 mm (1.1 in), occurring over just 5 days, with humidity slightly higher at 78%. For more detailed insights into October's climate, visit San Carlos weather in October.
In September, the weather is notably warmer, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 36°C (98°F), and an average temperature of 23°C (75°F). It also experiences significant rainfall, with 81 mm (3.2 in) of precipitation spread across about 10 days, combined with a humidity of 75%. In contrast, November brings a cooler climate, with temperatures dropping to a minimum of -5°C (24°F) and a maximum of 30°C (87°F), averaging 15°C (60°F). Rainfall is much lighter in November, totaling only 13 mm (0.5 in) over just 2 days, although humidity increases slightly to 85%. For more detailed information on November's weather, you can check out San Carlos weather in November.
In September, the weather is typically warm and humid, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 36°C (98°F), averaging around 23°C (75°F). The month experiences fairly consistent precipitation, with about 81 mm (3.2 in) spread over 10 days. In contrast, December brings much colder temperatures, dipping to a low of -10°C (14°F) and averaging around 11°C (53°F), with a high of 28°C (82°F). The winter month sees significantly less rainfall, accumulating only 24 mm (0.9 in) over just 2 days, while the humidity remains slightly higher at 85%. For further details, check San Carlos weather in December.
As September unfolds in San Carlos, visitors can expect a unique blend of warm temperatures and increased rainfall compared to the preceding summer months. While the maximum heat lingers, the average temperature shifts to a more moderate level, offering relief from the peak summer highs. Rain becomes a key player this month, with about a third of the days experiencing precipitation, which contributes to the lush greenery of the landscape. The humidity, sitting at a noticeable 75%, adds a tropical feel, contrasting sharply with the drier months that precede it. For those looking to understand the intricate nuances of San Carlos weather throughout the year, be sure to explore San Carlos Climate.