Last updated: August 21, 2025
September in Antigua Guatemala offers a blend of mild temperatures and frequent rain, creating a unique atmosphere. With a maximum temperature reaching 28°C (83°F) and an average of 20°C (68°F), the days remain comfortably warm, while nights cool down to a refreshing minimum of 13°C (56°F). Expect significant rainfall, totaling approximately 293 mm (11.6 in) over 27 days, contributing to the region’s lush landscapes. The humidity level is notably high at 82%, enhancing the tropical feel of this vibrant colonial city. Visitors should prepare for wet conditions, but the charm of Antigua shines through even in the rain, making it a captivating destination in September.
In September, Antigua Guatemala experiences mild temperatures that reflect the transition into the cooler months. With minimums around 13°C (56°F), average daily temperatures hover at a comfortable 20°C (68°F), peaking at a pleasant 28°C (83°F). This slight dip in temperatures compared to the summer months makes it an ideal time for exploration, as the climate remains inviting without the intense heat. As the rainy season continues, visitors can expect some humidity, but the overall weather is typically enjoyable, contributing to September's charm in this historic city.
September in Antigua Guatemala marks a significant peak in precipitation, with 293 mm (11.6 in) of rain falling across 27 days. This month typically showcases the climax of the rainy season, contributing greatly to the lush surroundings that the region is renowned for. Following the heavy downpours of August, which recorded 229 mm (9.0 in) over 23 days, September's rainfall further intensifies the vibrant greenery, making it an ideal time for photographers seeking to capture the city's rich natural beauty. As the month transitions into October, the rainfall begins to taper off, but September undeniably stands out as a moment where nature's splendor is on full display, encouraging both locals and visitors to embrace the enchanting, rainy atmosphere.
September in Antigua Guatemala sees a notable peak in humidity, consistent with the trend observed since August, maintaining a high level of 82%. This elevated moisture is typical of the late rainy season, where the air feels notably damp, contributing to the lush greenery that characterizes the landscape. The humidity remains high into October, rising slightly to 83%, before gradually tapering off in the following months. Contrasting this, the year begins with lower humidity levels, averaging around 68% in February to 59% in March, demonstrating the shift to a more humid climate as the year progresses. Overall, September stands as a hallmark of seasonal transition, where the lingering warmth combines with increased moisture, creating a vibrant and atmospheric experience in this historic city.
In September, Antigua Guatemala experiences a UV Index of 13, maintaining its extreme exposure category and a swift burn time of just 10 minutes. This trend of high UV exposure remains consistent throughout the year, peaking in the earlier months with an index of 14 from March to July. As we transition from summer to fall, the index slightly decreases but still commands attention for sun safety. The data showcases a persistent need for protective measures against the sun’s harsh rays, particularly during this month. For a detailed view of UV patterns throughout the year, visit Antigua Guatemala UV Index.
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As September dawns in Antigua Guatemala, the vibrant energy of the city harmonizes with a delightful 286 hours of sunshine, creating a perfect backdrop for exploration and leisure. While the days grow shorter heading into fall, this month maintains robust sunlight, mirroring the energy from the bustling summer months of July and August. The trend shows a slight dip from the peak summer brightness, yet this transition brings a unique charm as the fading warmth of the season enhances the beauty of the colorful cobblestone streets. With a consistent pattern of sunshine throughout the year, September offers pleasantly sunny days, making it an ideal time for visitors to experience the rich culture and stunning landscapes this enchanting city has to offer.
In Antigua Guatemala, September marks a notable dip in sunshine, with only a 17% chance of clear skies. This trend is part of a broader pattern where the sun peeks through less frequently as the rainy season progresses. Following the vibrant summer months of July and August, which see 26% and 14% sunshine respectively, September continues this downward trajectory, making it one of the cloudiest months of the year. As October approaches, the likelihood improves slightly to 30%, hinting at a gradual return to brighter days. Travelers looking to bask in the sun may want to consider other months, such as December, when the chance of sunny weather rises to an inviting 70%.
In September, the picturesque city of Antigua Guatemala enjoys a delightful 12 hours of daylight, continuing a trend established in the preceding months of June, July, and August. This consistent yield of sunlight heralds a time of vibrant colors and bustling activity, with locals and visitors alike taking full advantage of the extended daylight. Following a slight contraction in daylight hours towards the end of the year, this mid-year stability reflects Guatemala's tropical climate, where lush landscapes and cultural richness thrive under the warm sun. As the days gradually shorten in October, September stands out as a perfect blend of light and life, making it an ideal time to explore all that this enchanting destination has to offer.
As September unfolds in Antigua Guatemala, a gentle whisper of the wind graces the city with an average speed of 1.2 m/s (3 mph), marking one of the calmer months of the year. This slight breeze, while modest compared to the peak winds seen in the earlier months, carries with it the remnants of summer's warmth as it transitions into the cooler tones of autumn. The pattern of wind speed here reveals a trend of gradual decrease from the spring months, which often boast stronger gusts, tapering down as the wet season approaches. Despite the lower velocities, the soft September winds invite leisurely strolls through cobblestone streets, enhancing the charm of this historic locale as the vibrant hues of nature begin to shift.
Weather in Antigua Guatemala varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Antigua Guatemala, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by a warmer average temperature of 20°C (68°F), with maximum highs reaching 28°C (83°F). However, this month is also marked by significant rainfall, accumulating 293 mm (11.6 in) over 27 days and a high humidity of 82%. In contrast, January presents a slightly cooler climate, with an average temperature of 19°C (66°F) and maximum temperatures of 29°C (84°F). Rainfall during this month is minimal, with only 9 mm (0.4 in) spread across just 2 days, leading to lower humidity levels at 76%. For more detailed insights, you can check Antigua Guatemala weather in January.
When comparing the weather in September and February, notable differences become apparent. September features a wider range of temperatures, with a minimum of 13°C (56°F) and a maximum of 28°C (83°F), while February tends to be slightly cooler at a minimum of 10°C (51°F) but can reach a high of 31°C (88°F). Precipitation is significantly higher in September, with an average of 293 mm (11.6 in) spread over 27 days, compared to February's much drier climate of only 20 mm (0.8 in) over 5 days. Additionally, September has a higher humidity level at 82%, whereas February sees a more comfortable 68%. For more detailed information, you can check Antigua Guatemala weather in February.
September and March present contrasting weather conditions. In September, the average temperature hovers around 20°C (68°F), with highs reaching 28°C (83°F) and lows rarely dropping below 13°C (56°F). However, this month is marked by considerable rainfall, with a hefty 293 mm (11.6 in) spread across 27 days, contributing to a high humidity level of 82%. Conversely, March showcases warmer highs, reaching up to 31°C (88°F), while maintaining a similar average temperature of 20°C (69°F). However, it experiences significantly less rain, with only 22 mm (0.9 in) over just 7 days and a lower humidity of 59%. For more detailed insights, check out Antigua Guatemala weather in March.
When comparing the weather in September and April, notable differences emerge. In September, temperatures range from a minimum of 13°C (56°F) to a maximum of 28°C (83°F), with an average of 20°C (68°F). The month is marked by high humidity at 82% and significant rainfall, totaling 293 mm (11.6 in) over 27 days. In contrast, April offers slightly warmer temperatures, with a minimum of 12°C (54°F) and a peak of 31°C (88°F), averaging 21°C (70°F). The precipitation level is much lower at 97 mm (3.8 in) over 17 days, along with a more comfortable humidity level of 57%. For a detailed insight into April's weather specifically in Antigua Guatemala, you can refer to this link: Antigua Guatemala weather in April.
In comparing the weather of September and May, one can observe some notable differences. September tends to be slightly cooler, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 28°C (83°F), whereas May experiences a warmer range, with minimum temperatures at 15°C (58°F) and maximums reaching 29°C (85°F). Additionally, September sees a significant amount of rainfall, with 293 mm (11.6 in) spread over 27 days, contributing to a much higher humidity level of 82%. In contrast, May has less precipitation at 264 mm (10.4 in) over 28 days and a lower humidity level of 65%. For more detailed insights into the weather conditions in May, you can check Antigua Guatemala weather in May.
September and June exhibit similar temperature ranges, with both months averaging around 20°C (68°F) and peaking at 28°C (83°F). However, September is slightly cooler with a minimum temperature of 13°C (56°F) compared to June's 15°C (58°F). Rainfall is more pronounced in June, receiving 358 mm (14.1 in) over 27 days, while September sees 293 mm (11.6 in) over the same number of days. Additionally, humidity levels are notably higher in September at 82%, compared to June’s 66%, making September feel more humid overall. For more detailed information, check out Antigua Guatemala weather in June.
When comparing the weather in September and July, we can see notable differences in temperature and precipitation. September generally has slightly cooler temperatures, with a minimum of 13°C (56°F) and a maximum of 28°C (83°F), while July features a minimum of 14°C (58°F) and a maximum of 29°C (85°F). Precipitation levels are significantly higher in September, where it averages 293 mm (11.6 in) over 27 days, compared to July's 111 mm (4.4 in) over just 16 days of rain. Additionally, September exhibits higher humidity at 82%, compared to July's 75%. For more information on July's weather specifics, you can visit Antigua Guatemala weather in July.
In comparing the weather between August and September, both months exhibit similar average temperatures, with September experiencing slightly cooler minimum and maximum temperatures, ranging from 13°C (56°F) to 28°C (83°F), compared to August's 14°C (57°F) to 29°C (84°F). However, September is notably wetter, receiving 293 mm (11.6 in) of precipitation over 27 days, while August sees only 229 mm (9.0 in) across 23 days. Despite both months maintaining a consistent humidity level of 82%, the increased rainfall in September may give it a distinct, damp feel compared to the relatively drier conditions of August. For more details on August weather, refer to Antigua Guatemala weather in August.
September and October share similar average temperatures in Antigua Guatemala, with both months hovering around a comfortable 20°C (68°F). However, September is characterized by slightly lower minimum temperatures and a greater maximum of 28°C (83°F), while October sees a nominal increase in the minimum temperature to 14°C (57°F). Precipitation levels are also a key difference; September experiences higher rainfall with 293 mm (11.6 in) over 27 days compared to October's 252 mm (9.9 in) spread across 24 days. Additionally, humidity levels remain relatively constant, with September at 82% and October at 83%. For more details, check out Antigua Guatemala weather in October.
September and November share similar temperature ranges, with September experiencing a minimum of 13°C (56°F) and an average of 20°C (68°F), while November has slightly lower values with a minimum of 12°C (54°F) and an average of 19°C (67°F). Both months reach max temperatures of 28°C (83°F). However, September is significantly wetter, receiving 293 mm (11.6 in) of precipitation over 27 days, compared to November's 50 mm (2.0 in) over just 7 days. Humidity levels are also comparable, with September at 82% and November at 80%. For more detailed information on the weather in November, you can visit Antigua Guatemala weather in November.
In September, the weather is generally warmer and wetter, with average temperatures around 20°C (68°F) and highs reaching up to 28°C (83°F). The month is characterized by high humidity at 82% and substantial rainfall, totaling 293 mm (11.6 in) over 27 days. In contrast, December experiences slightly cooler temperatures, with an average of 19°C (66°F) and a minimum of 10°C (50°F), while still reaching a maximum of 28°C (83°F). The precipitation drops dramatically to just 12 mm (0.5 in) over only 3 days, leading to a lower humidity of 76%. This marked difference in weather patterns makes December a drier and more comfortable month compared to the humid and rainy September. For more detailed insights, check out Antigua Guatemala weather in December.
September in Antigua Guatemala offers a distinct departure from the rest of the year, characterized by a noticeable increase in humidity and precipitation. As rain graces the city for nearly the entire month, visitors will experience the lush greenery that flourishes from the abundant rainfall, resulting in stunning scenery that contrasts sharply with the drier months. The temperatures remain quite pleasant, with mild afternoons giving way to cool evenings, making it an inviting time for those who appreciate a more tranquil atmosphere. The frequent showers, however, may require an umbrella; thus, it's prudent to plan activities around the rain. For a more detailed understanding of the weather patterns, explore Antigua Guatemala Climate.