Last updated: April 22, 2025
Experience the vibrant September weather in Santiago Atitlán, Mexico, where temperatures paint a delightful picture of the season. With a maximum of 29°C (85°F) and an average of 19°C (67°F), the days are warm, while minimums drop to a cool 13°C (55°F), inviting cozy evenings. However, prepare for a lush landscape as precipitation amounts reach 345 mm (13.6 in), occurring on 26 days throughout the month. With an average humidity level of 84%, the air is rich and vibrant, creating an enchanting atmosphere for both locals and visitors alike. Embrace the unique charm that September brings to this beautiful lakeside town!
In September, Santiago Atitlán enjoys a pleasant mix of temperatures that reflect the transition towards the cooler months. With minimums around 13°C (55°F) and averages reaching 19°C (67°F), the days are comfortably warm yet refreshing. The maximums peak at 29°C (85°F), creating an ideal environment for outdoor adventures and cultural exploration. This month maintains a similar vibe to the preceding summer, with consistent temperatures that encourage leisurely activities by the stunning shores of Lake Atitlán. As the month progresses, you can sense the subtle shift toward autumn, providing an inviting backdrop for visitors and locals alike.
In September, Santiago Altitlan experiences a peak in precipitation, with an impressive 345 mm (13.6 in) of rainfall over 26 days, marking a continuation of the heavy wet season. This month consistently ranks among the highest for rainfall, following closely behind the also-soggy months of June and August. Notably, this year’s September figures extend the pattern of significant precipitation, contributing to the lush landscapes typical of this time of year. As the rainy season begins to taper off into October, the pattern reveals a gradual decline in both total rainfall and rainy days, underscoring the shift from the peak of the wet season to the drier months ahead.
In September, Santiago Altitlan experiences a notable spike in humidity, reaching 84%, which mirrors the elevated levels seen in January and August. This trend suggests that as summer transitions into fall, the air retains its moisture, creating a lush and vibrant atmosphere. Following September, humidity levels peak again in October at 89%, signaling the onset of the rainy season. Overall, the data illustrates a steady rhythm of humidity throughout the year, characterized by higher levels during the summer months and a gradual increase as the year progresses towards the wetter autumn, perfect for appreciating the region's scenic beauty.
In September, Santiago Altitlan experiences a UV Index of 14, categorizing it as extreme with a minimal burn time of just 10 minutes. This month continues the trend of high UV exposure that peaks during the summer months, where values frequently reach above 14. As the year progresses, the UV Index starts to taper down in October but remains a significant concern for sun safety. Notably, the consistent extreme levels from February through September prompt caution for outdoor activities; protective measures are essential to avoid harmful effects. To learn more about the UV Index in Santiago Altitlan, visit Santiago Altitlan UV Index.
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September in Santiago Atitlán, Mexico, offers a delightful balance of sunshine with 285 hours of glorious sunlight, marking a slight dip from the peak summer months. As the vibrant summer days of May and July boast over 320 hours, September welcomes the onset of fall while maintaining quite a generous amount of sun compared to the traditionally gloomy months ahead. This sunny reprieve is part of a broader trend of generally high sunlight hours from March through August, illustrating the region's penchant for basking in bright days during much of the year. With autumn on the horizon, September serves as a gentle reminder of the warm days fading yet still celebrated in this picturesque lakeside town.
In September, Santiago Altitlan experiences one of its lowest chances of sunny weather, with only a 9% likelihood of clear skies. This marks a significant dip from the sunnier months earlier in the year, particularly February and March, which each boast a robust 59% chance of sunshine. The trend indicates a gradual decrease in sunny opportunities as summer transitions into fall, with June and July already dipping to 9% and 18% respectively. As September rolls in, the persistent cloud cover can cast a shadow over outdoor plans, making it one of the least favorable months for sun seekers.
In Santiago Atitlán, September marks the transition into autumn with a consistent 12 hours of daylight. Following a gradual increase in daylight from 11 hours in January and February to a peak of 13 hours during the summer months of June and July, the daylight begins to taper off slightly as the year progresses. August maintains the same 12-hour duration, setting a steady rhythm that continues into September. This stability in daylight duration hints at the region’s temperate climate, making it a captivating time for both locals and visitors to appreciate the natural beauty of the area as daylight begins to shift towards the shorter days of fall.
In Santiago Atitlán, Mexico, the winds tell a gentle story as they shift throughout the year. As summer fades into autumn, September experiences a notable decrease in average wind speed, dipping to 1.5 m/s (3 mph), the calmest month of the year. This subtle transition marks a departure from the mild breezes of earlier months, with wind speeds gradually declining from 2.2 m/s (5 mph) in March to this softer current in September. The cooling air serves as a reminder of the approaching fall, while November promises a revival, with wind speeds picking up again to 2.4 m/s (5 mph). Overall, the steady ebb and flow of winds throughout the year reflect a serene rhythm, capturing the tranquil essence of this picturesque lakeside village.
The weather in Santiago Altitlan 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 Santiago Altitlan and find detailed weather information for every month.
September and January present contrasting weather patterns. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 29°C (85°F), with an average of 19°C (67°F). This month also sees significant rainfall, totaling 345 mm (13.6 in) over 26 days, contributing to high humidity levels at 84%. In contrast, January experiences cooler temperatures, with a minimum of 4°C (39°F) and an average of 15°C (59°F), peaking at 30°C (86°F). The precipitation is much lower, at just 25 mm (1.0 in) across 7 days, while humidity remains consistent at 84%. This showcases the transition from a wet and warm September to a drier and cooler January. For more details, you can explore Santiago Altitlan weather in January.
September and February present quite contrasting weather patterns. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 29°C (85°F), with an average of 19°C (67°F). This month is marked by significant rainfall, receiving 345 mm (13.6 in) over 26 days, contributing to a high humidity level of 84%. In contrast, February boasts a milder temperature profile, with a minimum of 4°C (40°F) and a maximum of 33°C (91°F), averaging at 17°C (63°F). The precipitation in February is considerably less, amounting to only 25 mm (1.0 in) across just 6 days, and the humidity is slightly lower at 80%. This makes February a drier and generally warmer month compared to the more humid and rainier September. For a closer look at February's weather specifics, you can visit Santiago Altitlan weather in February.
September and March present contrasting weather patterns. In September, temperatures range from a mild minimum of 13°C (55°F) to a steamy maximum of 29°C (85°F), with an average of 19°C (67°F). This month is notably wet, experiencing significant rainfall of 345 mm (13.6 in) over about 26 days and high humidity at 84%. In contrast, March enjoys a broader temperature range with a minimum of 6°C (43°F) and a maximum reaching 33°C (92°F), averaging around 18°C (65°F). Rainfall is minimal in March at just 27 mm (1.0 in) over 6 days and lower humidity at 73%. For more details about March weather, you can check Santiago Altitlan weather in March.
When comparing the weather in September and April, significant differences in temperature and precipitation become evident. September tends to be warmer on average, with temperatures ranging from a minimum of 13°C (55°F) to a high of 29°C (85°F), while April's temperatures are slightly cooler, ranging from 8°C (46°F) to a maximum of 34°C (94°F). In terms of precipitation, September is notably wetter, receiving 345 mm (13.6 in) over 26 days, compared to April's much lighter rainfall of 62 mm (2.4 in) across 12 days. Additionally, the humidity in September is higher at 84%, whereas April has a more comfortable humidity level of 67%. For more specific insights on April weather, you can visit Santiago Altitlan weather in April.
When comparing the weather in September and May, we notice distinct differences in temperature and precipitation patterns. September tends to have a slightly warmer average temperature of 19°C (67°F), with maximum highs reaching up to 29°C (85°F), while May features a higher maximum temperature of 34°C (93°F) and an average of 21°C (70°F). However, September is much wetter, with 345 mm (13.6 in) of rainfall spread over 26 days, compared to May's 159 mm (6.3 in) over just 19 days. Additionally, September experiences higher humidity at 84%, whereas May has a more comfortable 72%. For a closer look at May’s climate, you can visit Santiago Altitlan weather in May.
When comparing the weather in September and June, we see some notable differences. September tends to be slightly cooler, with average temperatures around 19°C (67°F), contrasting with June's warmer average of 20°C (68°F). Both months experience similar precipitation levels, with September receiving 345 mm (13.6 in) over 26 days, while June sees a slightly lower amount of 341 mm (13.4 in) across 25 days. Additionally, September is notably more humid, with humidity levels reaching 84% compared to June's more comfortable 73%. For more detailed information, you can check out Santiago Altitlan weather in June.
September and July share similar temperatures, with both months experiencing minimums around 13°C (55°F) and average temperatures of 19°C (67°F). However, September sees a slight increase in maximum temperatures, reaching 29°C (85°F) compared to July's 28°C (83°F). The most significant difference lies in precipitation; September is notably wetter, receiving 345 mm (13.6 in) of rain over 26 days, while July has only 214 mm (8.4 in) over 28 days. Additionally, the humidity in September is higher at 84%, compared to July's 76%. For more details about July weather, visit Santiago Altitlan weather in July.
In comparing the weather between September and August, we observe that both months share similar temperature ranges, with minimums at 13°C (55°F), averages at 19°C (67°F), and maximums of 29°C (84°F in August and 85°F in September). However, September experiences slightly more precipitation, totaling 345 mm (13.6 in) over 26 days compared to August's 339 mm (13.3 in) across 28 days. Additionally, September has a higher humidity level of 84%, whereas August sits at 80%. For more detailed information on August weather, you can check Santiago Altitlan weather in August.
In September, temperatures in Santiago Altitlan show a range from a minimum of 13°C (55°F) to a maximum of 29°C (85°F), with an average temperature of 19°C (67°F). The month is characterized by significant precipitation, totaling 345 mm (13.6 in) over 26 days, and an average humidity of 84%. In contrast, October experiences slightly cooler minimum temperatures at 10°C (50°F) but features a warmer maximum of 31°C (88°F), with an average temperature remaining similar at 19°C (66°F). Precipitation decreases to 225 mm (8.9 in) over 23 days, along with a slight rise in humidity to 89%. For more details on October weather, check Santiago Altitlan weather in October.
September's weather is characterized by warmer temperatures, with a minimum of 13°C (55°F) and an average of 19°C (67°F), peaking at a high of 29°C (85°F). However, it is also notably rainy, experiencing 345 mm (13.6 in) of precipitation over 26 days, coupled with a humidity level of 84%. In contrast, November sees cooler temperatures, with a minimum dropping to 6°C (43°F) and an average of 16°C (62°F), while still reaching the same maximum of 29°C (85°F). Rainfall significantly decreases to 61 mm (2.4 in) over just 10 days, and humidity rises slightly to 88%. For more detailed insights on November weather, check out this page: Santiago Altitlan weather in November.
In September, the weather is quite warm with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 29°C (85°F), averaging around 19°C (67°F). The month sees significant rainfall, totaling 345 mm (13.6 in) across 26 days, and the humidity is quite high at 84%.
In contrast, December experiences cooler temperatures, with a minimum of 3°C (38°F) and an average of 15°C (60°F), but still reaching up to 29°C (85°F). The precipitation dramatically decreases to just 25 mm (1.0 in) over 6 days, and the humidity rises slightly to 88%. For more insights on December weather, you can explore Santiago Altitlan weather in December.
September in Santiago Altitlan brings a marked shift in weather patterns, characterized by higher humidity levels and frequent rainfall. With a noticeable increase in precipitation, this month stands out compared to the drier months, creating a lush and vibrant landscape. The temperatures remain pleasantly moderate, maintaining a comfortable average, yet the frequent rain can lead to unexpected dampness. Travelers can expect a unique blend of warmth and moisture that’s perfect for experiencing the thriving beauty of the region. For a deeper understanding of the climate, be sure to check out Santiago Altitlan Climate.