Last updated: August 21, 2025
In September, Jalapa, Guatemala experiences a blend of warm temperatures and significant rainfall, creating a unique climate profile. The maximum temperature reaches a comfortable 30°C (87°F), while the average hovers around 21°C (71°F), dipping to a refreshing minimum of 15°C (60°F) at night. This month is marked by substantial precipitation, totaling 187 mm (7.3 in), distributed over 25 rainy days. With humidity levels averaging a high 82%, the atmosphere is notably moist, making September a vibrant yet wet period in Jalapa's annual weather cycle.
In September, Jalapa, Guatemala, experiences mild and pleasant temperatures as the rainy season continues to embrace the region. With a minimum temperature of 15°C (60°F) and an average hovering around 21°C (71°F), the climate remains comfortable for outdoor activities. The maximum temperature tends to peak at 30°C (87°F), making it one of the cooler months following the hotter summer months. It’s a transitional period that brings a balance of warmth and refreshing breezes, characteristic of the lush and vibrant landscapes that define this beautiful part of Guatemala. As temperatures gradually cool down from the sweltering heights of April and May, September stands out as a cozy, inviting time for locals and travelers alike.
September marks a significant peak in precipitation for Jalapa, Guatemala, with an impressive 187 mm (7.3 in) of rainfall spread over 25 days. This trend continues the region's monsoon season, showcasing a dramatic increase from the drier months of earlier in the year. In comparison to July and August, which also feature substantial rainfall of 93 mm (3.7 in) and 153 mm (6.0 in) respectively, September stands out as the wettest month, underscoring a vibrant climatic shift during this part of the year. As the landscape absorbs this abundant moisture, the lushness of the environment flourishes, transforming Jalapa into a vivid tapestry of green before the rains gradually taper off into the dryer months of October and November.
In September, Jalapa, Guatemala, experiences a notable peak in humidity, maintaining a robust 82%, a level consistent with August's figures. This high humidity reflects a continuing trend from the summer months, where the region transitions from the drier early part of the year. As the wet season progresses, October sees a slight increase to 83%, suggesting an enduring moisture-laden atmosphere. Comparatively, the peak of the humidity in September is a stark contrast to the much drier spells found in March and April, which both hover around 57%. Overall, the transition into fall brings about an increasingly humid environment, setting the stage for the lush landscapes that define Jalapa.
As September rolls in, Jalapa, Guatemala maintains a consistently high UV Index of 14, categorizing the exposure as extreme. With a brisk burn time of just 10 minutes, sun protection becomes essential for outdoor activities. This trend of high UV levels has persisted since March, showcasing a remarkable stability in the region's sun intensity during the late dry season. Following September, the UV Index is projected to slightly decline to 13 in October, yet it remains crucial to stay vigilant against sun exposure. For more detailed information, visit Jalapa UV Index.
UV Risk Categories
As the summer fades into fall, September in Jalapa, Guatemala continues to bask in a warm glow with an impressive 291 hours of sunshine. This month represents a slight dip from the sun-drenched heights of March and July, where hours peaked at 316 and 314, respectively. However, September still holds its own, offering more sunlight than the chilly months that follow. The consistent availability of sunshine through the summer months not only invigorates the landscape but also sets the stage for a vibrant transition into the autumn season, making it a perfect time to explore Jalapa's natural beauty.
In Jalapa, Guatemala, September presents a modest 25% chance of sunny weather, making it one of the less favorable months for those seeking clear skies. This follows the trend of the preceding months, where the likelihood of sunshine diminishes significantly from April through August, plummeting to a mere 13% in June and 17% in August. However, as the month transitions into October, the chances of sunshine improve slightly to 35%. Overall, September's weather reflects the typical rainy season, suggesting that visitors should prepare for a mix of sun and showers, while also keeping an eye on the emerging brighter days of October.
In September, Jalapa, Guatemala enjoys a consistent 12 hours of daylight, maintaining the trend established over the summer months. This period of abundant sunshine offers a delightful balance of light, continuing the pattern seen since March. As the region transitions towards the end of the year, daylight gradually begins to diminish, with the length falling to 11 hours by October. Overall, September is a perfect time to bask in the steady brightness and vibrant atmosphere, before nature shifts gears towards the shorter days of autumn and winter.
In September, Jalapa, Guatemala experiences a gentle breeze, with an average wind speed of 1.5 m/s (3 mph). This slight dip in wind speed marks a transition from the more variable summer months, showcasing a trend of overall calming winds as the country approaches the end of its rainy season. While the early months of the year brought slightly stronger gusts, September's softer breezes often invite moments of tranquility, allowing locals and visitors alike to savor the lush greenery and vibrant atmosphere of the rainy season. As the winds begin to pick up again in October and November, one can feel the anticipation of the next changes in weather, highlighting the dynamic climate of this enchanting region.
Weather in Jalapa varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Jalapa, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather in Jalapa is characterized by a warm average temperature of 21°C (71°F), peaking at a high of 30°C (87°F), but it also experiences significant rainfall, totaling 187 mm (7.3 in) over approximately 25 days, accompanied by high humidity levels of 82%. In contrast, January offers a cooler climate with a minimum temperature of 8°C (47°F) and an average of 19°C (66°F), while still reaching up to 32°C (89°F). Notably, January is much drier, with only 9 mm (0.3 in) of precipitation spread over just 2 days, resulting in slightly lower humidity at 76%. For more details on January weather, visit Jalapa weather in January.
In September, the weather is characterized by warmer temperatures, with a minimum of 15°C (60°F), an average of 21°C (71°F), and a maximum that can reach up to 30°C (87°F). However, this month is also quite rainy, with a total precipitation of 187 mm (7.3 in) over 25 days and a humidity level of 82%. In contrast, February experiences a milder climate, with cooler minimum temperatures of 9°C (48°F) and an average of 20°C (68°F). The maximum can soar to 33°C (91°F), yet this month sees significantly less rain—only 5 mm (0.2 in) over 0 days, and humidity drops to 68%. For a detailed look at February weather, check out Jalapa weather in February.
In comparing the weather of September and March, we see notable differences in temperature, precipitation, and humidity. September typically experiences a wider temperature range, with minimums around 15°C (60°F) and maximums reaching 30°C (87°F), while March has slightly cooler minimums of 10°C (51°F) but can get warmer with maximums up to 33°C (92°F). September is characterized by high levels of humidity at 82% and frequent rainfall, totaling 187 mm (7.3 in) over 25 days. In contrast, March enjoys significantly drier conditions, with just 7 mm (0.3 in) of precipitation over only 1 day and a lower humidity level of 59%. For more details, see Jalapa weather in March.
When comparing the weather in September to that of April, notable differences emerge. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 30°C (87°F), with an average temperature of 21°C (71°F). This month is characterized by high humidity at 82% and significant precipitation totaling 187 mm (7.3 in) over 25 days. In contrast, April features slightly cooler nights with a minimum temperature of 12°C (54°F) and warmer days, reaching up to 35°C (95°F) with an average of 23°C (73°F). The month is much drier, receiving only 42 mm (1.7 in) of rain over 7 days, and humidity is lower at 57%. For more detailed information, you can check Jalapa weather in April.
September and May present contrasting weather patterns. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 30°C (87°F), with an average of 21°C (71°F). However, this month is characterized by high precipitation, receiving 187 mm (7.3 in) over 25 days and a notable humidity level of 82%. In contrast, May boasts slightly higher temperatures, with a minimum of 15°C (59°F) and a maximum of 34°C (93°F), averaging around 23°C (73°F). Precipitation in May is also lower, totaling 150 mm (5.9 in) across 21 days, and the humidity is considerably less at 65%. For more details, you can check this link: Jalapa weather in May.
When comparing the weather in September and June, we see some similarities and differences. Both months have a minimum temperature of 15°C (60°F), but June typically boasts a slightly higher average temperature of 22°C (71°F) compared to September's average of 21°C (71°F). Additionally, June reaches a maximum temperature of 31°C (87°F), which is comparable to September's max of 30°C (87°F). However, June experiences more precipitation, with 238 mm (9.4 in) over 26 days, while September has 187 mm (7.3 in) across 25 days. Humidity levels are also notably different, with September being more humid at 82% compared to June's 66%. For those interested in specific details about June weather, please refer to Jalapa weather in June.
In comparing the weather of September and July, both months experience similar average temperatures, hovering around 21°C (71°F), with maximums reaching up to 30°C (87°F). However, September tends to be more unsettled, featuring significantly higher precipitation at 187 mm (7.3 in) and more rainy days (25) compared to July's 93 mm (3.7 in) over 19 days. Additionally, September is more humid, with levels at 82%, while July maintains a slightly lower humidity of 75%. For a detailed look at July's weather patterns, you can refer to Jalapa weather in July.
In comparing the weather between September and August, we observe that both months maintain similar humidity levels at 82%. However, September tends to experience slightly lower average temperatures, with a minimum of 15°C (60°F) and a maximum of 30°C (87°F) compared to August's minimum of 14°C (58°F) and maximum of 31°C (88°F). Additionally, September sees increased precipitation, totaling 187 mm (7.3 in) over 25 days, while August has considerably less with 153 mm (6.0 in) over 21 days. For more detailed information, you can check Jalapa weather in August.
In September, the weather features a minimum temperature of 15°C (60°F), with an average of 21°C (71°F) and a high reaching 30°C (87°F). This month experiences significant rainfall, totaling 187 mm (7.3 in) over 25 days, accompanied by high humidity levels of 82%. In contrast, October sees slightly cooler minimum temperatures at 13°C (56°F) and a higher maximum temperature of 32°C (91°F), while maintaining an average temperature of 21°C (70°F). Precipitation decreases slightly to 177 mm (7.0 in), occurring over 22 days, with humidity slightly rising to 83%. For more details, you might want to check Jalapa weather in October.
September experiences warmer temperatures with a minimum of 15°C (60°F) and a maximum of 30°C (87°F), featuring an average of 21°C (71°F). In contrast, November sees slightly cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 29°C (85°F), while the average temperature remains close at 20°C (67°F). Precipitation levels in September are substantially higher, with 187 mm (7.3 in) recorded over 25 days, compared to only 47 mm (1.8 in) over 7 days in November. Humidity levels are also marginally lower in November at 80%, down from September’s 82%. For more information on the weather in November, visit Jalapa weather in November.
In comparing the weather between September and December, it's clear that September is significantly warmer and wetter. The average temperature in September is around 21°C (71°F), with maximums reaching 30°C (87°F) and a high humidity level of 82%. In contrast, December experiences cooler temperatures, with an average of 19°C (66°F) and minimums dropping to 8°C (46°F). Additionally, December sees much less rainfall, with only 14 mm (0.5 in) over about 4 days, compared to September's 187 mm (7.3 in) across 25 days. For more specific details about weather conditions in December, you can check Jalapa weather in December.
As September unfolds in Jalapa, the weather showcases a distinct character, marked by high humidity and frequent rainfall that surpasses most other months. The average temperature remains moderate, inviting comfortable outdoor experiences, while the lush landscape blooms thanks to the significant precipitation that graces the region. With nearly every day touched by rain, September stands out as a month of transformation, where verdant scenery and cooler breezes replace the usual arid tones. This seasonal shift not only enhances the beauty of Jalapa but also makes it a unique time to explore the vibrant culture and natural splendors of the area. For more insights into the weather dynamics throughout the year, visit Jalapa Climate.