Last updated: August 21, 2025
In September, Acatenango, Guatemala, experiences a dynamic climate characterized by a maximum temperature reaching 28°C (83°F) and a comfortable average of 21°C (70°F). The month is notably wet, with precipitation totaling 406 mm (16.0 in) spread across 30 days, resulting in an impressive humidity level of 82%. This combination of warm temperatures and high humidity creates a lush, vibrant landscape, ideal for exploring the area's natural beauty, albeit with frequent rain showers. Visitors should prepare for a moist adventure while enjoying the picturesque surroundings that September brings to this enchanting locale.
In September, temperatures in Acatenango, Guatemala, reflect a mild transition into autumn, with minimums around 15°C (60°F) and averages hovering at a comfortable 21°C (70°F). As the month progresses, daytime highs gently dip to around 28°C (83°F), marking a shift from the summer's heat. This slight decrease is consistent with the gradual cooling trend seen from earlier months, as both July and August maintained maximum temperatures of 29°C (84°F). The stability in averages across the months suggests a pleasantly warm microclimate, ideal for outdoor explorations. Overall, September offers a perfect balance of warmth and comfort, making it an inviting time to experience the natural beauty of this stunning region.
September in Acatenango, Guatemala, is marked by a significant increase in precipitation, as the region experiences 406 mm (16.0 in) of rain over 30 days. This surge is part of the rainy season's peak, following the already substantial downpours of August, which recorded 345 mm (13.6 in). The consistency of rainfall days continues, with each day bringing potential for fresh, vibrant landscapes. As the rainy season progresses into October, the precipitation slightly decreases, yet still remains high, illustrating a clear trend of moisture-laden months that are crucial for the area's lush vegetation. This pattern of heavy rainfall underscores Acatenango's dynamic climate and the important role that September plays in sustaining its natural beauty.
In September, the humidity in Acatenango, Guatemala remains high at 82%, mirroring the peak levels observed in August. This continuation suggests a late-summer trend of increased moisture, characteristic of the region during these months. As the year progresses into October, humidity slightly rises to an average of 83%, indicating a persistent warm climate that is typical for the transition into the rainy season. In contrast, the earlier months of the year show lower humidity levels, starting at 76% in January and gradually declining to 57% in April, before climbing back up in the later months. Thus, September's humidity is part of a clear trend of increasing atmospheric moisture as the Central American rainy season approaches its peak.
In September, Acatenango, Guatemala, maintains an intense UV Index of 13, categorizing it as extreme and allowing for a rapid burn time of just 10 minutes. This reflects a consistent pattern from previous months, as the region experiences high UV levels throughout the wet season. Even as we transition towards the end of the dry season, the UV Index remains notably elevated, mirroring the values noted in both July and August. If you're planning to explore this stunning area, it's crucial to stay protected from the sun's fierce rays. For more details on UV levels, check out the comprehensive guide here: Acatenango UV Index.
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In September, Acatenango, Guatemala, continues to bask in a generous supply of sunlight, boasting an impressive 283 hours of sunshine throughout the month. This is a slight dip from the vibrant peak of 322 hours seen in March but remains consistent with the dry season's overall trend, which starts in late dry months and begins to wane as the rainy season approaches. From January to May, the sunny hours steadily build toward a high point before tapering off in the late summer, with July and August still delivering substantial sunshine at 312 and 302 hours, respectively. This gradual decrease alerts visitors to the changing seasons, with September offering a balance of warm days while hinting at upcoming shifts in weather. Overall, the sunlight pattern in Acatenango invites both adventurers and sun-seekers to relish the beauty of each month, particularly the spectacular late summer days that transition beautifully into fall.
In Acatenango, Guatemala, the likelihood of sunny weather significantly diminishes as summer transitions into fall. September, in particular, experiences a mere 16% chance of sunshine, marking one of the year's driest months. This decline is notable when compared to the clear skies of January, which boasts a robust 66% sun probability. The trend reveals a general pattern of decreased sunshine from the dry months of January through April, plummeting to the lowest points seen in the humid months of June and August. As the seasons progress, the chance of sun gradually begins to recover in October and beyond, highlighting just how pivotal September is within Acatenango's unique climatic calendar.
In September, Acatenango, Guatemala enjoys a consistent 12 hours of daylight, aligning with the summer months of March through August. This stable duration suggests a climatic trend where the days remain long and inviting as the rainy season draws to a close. Following September, daylight begins to gradually shorten, dropping to 11 hours in October, a clear indication of the transition into the cooler months. This pattern reflects the region's tropical climate, where daylight durations are relatively stable year-round, creating a rhythm that is as predictable as the vibrant natural beauty surrounding Acatenango.
As the seasons shift in Acatenango, Guatemala, September brings a gentle breeze with an average wind speed of 1.1 m/s (3 mph), mirroring the calming currents of the preceding months. This slight drop from the earlier summer winds reflects a transition towards the cooler, stable weather that marks the onset of autumn. Notably, the winds throughout April to August show a gradual decline, peaking at 1.6 m/s (4 mph) in the early months and gently settling alongside September's refreshing air. This trend signifies a serene period in Acatenango's atmosphere, inviting adventurers and locals alike to appreciate the tranquil beauty of the landscape as it prepares for the upcoming seasonal changes.
Weather in Acatenango varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Acatenango, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather tends to be warmer and much rainier compared to January, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 28°C (83°F). The month sees a significant amount of precipitation, totaling 406 mm (16.0 in) over 30 days, contributing to a high humidity level of 82%. In contrast, January experiences milder temperatures, with a minimum of 12°C (54°F) and a maximum of 29°C (85°F), but it is considerably drier, receiving just 18 mm (0.7 in) of rainfall over 5 days and a slightly lower humidity of 76%. For a more detailed look, check out Acatenango weather in January.
September and February present contrasting weather patterns. In September, the temperatures range from a minimum of 15°C (60°F) to a maximum of 28°C (83°F), with an average of 21°C (70°F). This month is characterized by high humidity at 82% and significant rainfall, totaling 406 mm (16 inches) over 30 days. In contrast, February experiences milder temperatures, with a minimum of 13°C (55°F) and a peak of 31°C (88°F), while maintaining the same average of 21°C (70°F). Rainfall is considerably lower in February, with only 22 mm (0.8 inches) recorded over just 6 days, and a reduced humidity level of 68%. For more detailed insights, check out Acatenango weather in February.
September and March offer distinctly different weather experiences. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 28°C (83°F), with an average of 21°C (70°F). This month is characterized by significant rainfall, with 406 mm (16.0 in) of precipitation spread over 30 days and high humidity at 82%. In contrast, March features slightly cooler temperatures, with a minimum of 13°C (55°F) and a maximum of 31°C (88°F), while maintaining an average of 21°C (71°F). Notably, March experiences much less rainfall, totaling only 38 mm (1.5 in) over 10 days, and lower humidity at 59%. For a more detailed look at weather conditions in March, you can check Acatenango weather in March.
When comparing September and April weather, notable differences emerge. September boasts a more humid climate with an average temperature of 21°C (70°F), peaking at 28°C (83°F), yet it also experiences a significant amount of precipitation, totaling 406 mm (16.0 in) over 30 days. In contrast, April generally offers warmer days, with average temperatures around 22°C (71°F) and highs reaching 31°C (88°F), alongside much lower rainfall of 130 mm (5.1 in) across 21 days. Additionally, April enjoys a more comfortable humidity level of 57% compared to the high 82% in September. For those looking for specific weather details in April, check out Acatenango weather in April.
In comparing the weather between September and May, we find that both months feature mild temperatures with minimal variation. September sees average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 28°C (83°F), while May enjoys slightly warmer conditions, with temperatures ranging from 16°C (61°F) to 29°C (84°F). Precipitation levels are significant in both months, with September receiving 406 mm (16.0 in) and May slightly less at 370 mm (14.6 in), yet both months span over 30 days of rain. Notably, humidity in September is considerably higher at 82%, compared to the more comfortable 65% in May, making May feel a bit drier overall. For more detailed insights into the weather, you can refer to Acatenango weather in May.
September and June exhibit similar average temperatures, both hovering around 21°C (70°F), but their distinct characteristics set them apart. September features slightly cooler minimum temperatures at 15°C (60°F) and maximums reaching 28°C (83°F), while June starts a degree warmer with a minimum of 16°C (61°F) and peaks at 29°C (85°F). Notably, September experiences higher precipitation levels, totaling 406 mm (16.0 in) over 30 days, compared to June's 436 mm (17.1 in) spread across 29 days. Moreover, the humidity in September is notably higher at 82%, making it feel more oppressive than June's 66%. For a more detailed look at the weather conditions in June, you can visit Acatenango weather in June.
September and July exhibit somewhat similar temperature ranges, with September having a minimum of 15°C (60°F) and a maximum of 28°C (83°F), while July sees slightly warmer temperatures, ranging from 16°C (60°F) to 29°C (84°F). However, September is significantly wetter, with a total precipitation of 406 mm (16.0 in) over 30 days compared to July's 235 mm (9.3 in) across 29 days. Furthermore, September experiences higher humidity at 82%, compared to July's 75%, making the former feel more muggy. For a more detailed look at July weather conditions, check out Acatenango weather in July.
In comparing the weather between August and September, we observe that September experiences slightly cooler temperatures, with a minimum of 15°C compared to August's 16°C. The average temperatures remain consistent at 21°C, while the maximum temperatures peak at 28°C in September and 29°C in August. Notably, September is wetter, receiving 406 mm of precipitation over the month, compared to August's 345 mm, though both months have similar humidity levels at 82%. For more detailed information about the weather in the region during August, you can check Acatenango weather in August.
In comparing the weather of September and October, both months exhibit a similar temperature range, with minimums of 15°C (60°F), average temperatures of 21°C (70°F), and maximums reaching 28°C (82°F) in October. However, October tends to see slightly less precipitation, with 384 mm (15.1 in) compared to September's 406 mm (16.0 in), although both months experience rainfall over 30 days. Additionally, October has a marginally higher humidity level of 83% compared to September's 82%. For more detailed information on October weather in a specific region, check out Acatenango weather in October.
In September, the weather tends to be warmer and wetter, with daily temperatures ranging between a minimum of 15°C (60°F) and a maximum of 28°C (83°F). This month sees significant precipitation, averaging 406 mm (16.0 in) over 30 days, along with high humidity levels of 82%. In contrast, November presents a slightly cooler climate, with temperatures still ranging from a minimum of 14°C (57°F) to a maximum of 28°C (83°F). However, it experiences much less rain, with only 123 mm (4.9 in) over 22 days and a reduced humidity of 80%. For more specific details about the weather in November, you can visit Acatenango weather in November.
September and December exhibit distinct differences in weather patterns. September tends to be more humid, with an average humidity of 82% and high precipitation of 406 mm over 30 days, creating a lush environment. Temperatures range from a minimum of 15°C (60°F) to a maximum of 28°C (83°F). In contrast, December offers milder conditions with lower humidity at 76% and significantly reduced precipitation of 28 mm over just 8 days. The temperature remains fairly stable, with a minimum of 12°C (55°F), an average of 20°C (69°F), and a maximum of 29°C (84°F). For more detailed information about the weather in December, you can refer to Acatenango weather in December.
September in Acatenango stands out with its higher humidity and intense rainfall, marking it as one of the wettest months of the year. The temperatures remain moderately warm, creating a welcoming yet lush environment, but the consistent precipitation can be a challenge for outdoor activities. With 30 rainy days and an average of 82% humidity, visitors should be prepared for a damp climate that distinguishes September from the drier months, offering a unique experience of the region's vibrant flora and rich landscapes. To dive deeper into how Acatenango’s weather changes throughout the year, visit Acatenango Climate.