Last updated: August 21, 2025
In August, Retalhuleu, Guatemala experiences a tropical climate that combines warmth with notable humidity. Daily temperatures typically range from a minimum of 22°C (72°F) to a maximum of 33°C (92°F), with an average temperature settling around 27°C (80°F), making it ideal for those who enjoy warm weather. However, this month is also characterized by significant rainfall, accumulating an average of 362 mm (14.3 in) over 29 days, which means that visitors should be prepared for frequent showers. With humidity levels reaching 82%, the atmosphere can feel quite muggy, contributing to the area's lush, vibrant landscape.
In August, Retalhuleu, Guatemala, experiences a tropical climate with temperatures that range from a minimum of 22°C (72°F) to a maximum of 33°C (92°F). The average temperature sits comfortably at 27°C (80°F), which reflects the overarching trend of warm conditions typical for this time of year. Compared to the preceding months, August maintains a similar pattern with slightly cooler highs than April and May, yet it remains consistently warm, making it ideal for outdoor activities. As the rainy season progresses, the atmosphere can feel quite humid, but temperatures typically stay inviting, contributing to the vibrant life of this charming region.
August in Retalhuleu, Guatemala, marks a peak in the rainy season, showcasing a substantial precipitation of 362 mm (14.3 in), delivered over 29 days of rainfall. This substantial volume reflects the region's characteristic climate, where torrential downpours are prevalent in the mid-year months. Following the notably heavy rainfall of May at 447 mm (17.6 in), August maintains a high moisture level, demonstrating the lingering effects of the wet season. With its regular downpours, August is crucial for revitalizing local ecosystems, contributing to lush landscapes that thrive during this vibrant period. The climatic trend indicates that the latter half of the year remains predominantly wet, setting the stage for the subsequent rain-soaked September.
In August, Retalhuleu, Guatemala, experiences a notable spike in humidity, reaching an average of 82%. This marks a continuation of the trend seen since the onset of the rainy season, which typically begins in May, with humidity levels gradually climbing from a low of 57% in April. Interestingly, August mirrors the humidity of September, hinting at a consistently muggy atmosphere as the wet season persists. This pattern continues into October, when humidity peaks at an average of 83%, reinforcing the tropical climate characteristic of this region during the latter part of the year. Overall, the rising humidity from spring to summer paints a vivid picture of Retalhuleu's lush and verdant environment, making it a unique destination for those who appreciate a warm, tropical setting.
In August, the UV Index in Retalhuleu, Guatemala, reaches a notable 12, classified within the extreme exposure category, indicating a burn time of just 10 minutes for unprotected skin. This figure reflects the region's consistently high UV levels from January through October, with only a slight decrease from July's peak of 13. Remarkably, while the UV intensity during this month remains formidable, it is part of an overarching trend of extreme exposure that characterizes the earlier months, particularly from February to June when indices escalated to as high as 14. As outdoor activities ramp up during the summer, it's essential for residents and visitors alike to remain vigilant and protect themselves from harmful UV rays. For more details, you can check the comprehensive guide on the Retalhuleu UV Index.
UV Risk Categories
In Retalhuleu, Guatemala, August enjoys a generous 299 hours of sunshine, making it a delightful time to soak in the tropical rays. This month follows a pattern of mostly consistent sunshine throughout the year, with a noticeable peak in March at 322 hours, but August still holds its own as a vibrant summer month. After lively July, which offers 312 hours, the slight dip to August doesn't diminish the allure of the warm weather; instead, it reflects the gradual transition into the impending rainy season. Those planning visits can relish the abundant sunlight, as the region usually bathes in over 280 hours of sunshine until October. Indeed, August stands out as a balance of sun and comfort, encouraging adventures and relaxation in this enchanting Guatemalan locale.
In Retalhuleu, Guatemala, the likelihood of enjoying sunny weather in August is notably low, with only a 15% chance of clear skies. This trend reflects a consistent decrease in sunshine as the rainy season progresses, particularly from May’s 24% to July’s 22% and finally to August. Comparatively, the earlier months of the year, like February's 72% and December's 76%, present a stark contrast to the overcast conditions typically expected during late summer. As August approaches, residents and visitors alike should be prepared for increased cloud cover and rainfall, as the region transitions through its wetter months.
In Retalhuleu, Guatemala, the daylight duration exhibits a steady rhythm throughout the year. Beginning with 11 hours in January and February, the days gradually lengthen, reaching a peak of 12 hours from March to August. This consistent pattern is indicative of the region's tropical climate, marked by a reliable amount of sunshine that persists even into September. As daylight begins to wane again in October, the cycle completes itself, returning to 11 hours by year-end. This predictability not only enriches daily life but also cultivates an inviting atmosphere for both residents and visitors alike.
In August, Retalhuleu, Guatemala experiences a gentle average wind speed of 1.2 m/s (3 mph), consistent with the calm breezes of the preceding months. Throughout the year, the wind typically hovers around this tranquil pace, with only slight fluctuations—ranging from a low of 1.1 m/s (2 mph) in May, October, and November to a peak of 1.5 m/s (3 mph) in February. This consistent pattern of light winds not only contributes to the region's warm climate but also creates a serene atmosphere that enhances outdoor activities. As the year progresses into the late summer and early fall, the gentle August winds maintain this soothing rhythm, making for an inviting backdrop in this vibrant part of Guatemala.
Weather in Retalhuleu varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Retalhuleu, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing August and January weather, August is notably warmer and more humid, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 33°C (92°F) and an average of 27°C (80°F). It also experiences significantly higher precipitation, with 362 mm (14.3 in) falling over 29 days, resulting in a humidity level of 82%. In contrast, January offers milder conditions, featuring temperatures from a minimum of 18°C (65°F) to a maximum of 34°C (93°F), with an average of 26°C (79°F). Precipitation is minimal during this month, totaling only 24 mm (1.0 in) over 6 days, and the humidity is slightly lower at 76%. For more information about January weather, you can visit Retalhuleu weather in January.
Comparing the weather in August and February reveals some significant differences. August tends to be much wetter and more humid, with average temperatures around 27°C (80°F) and maximums reaching 33°C (92°F). Precipitation during this month is substantial, with 362 mm (14.3 in) expected over 29 days of rain. In contrast, February boasts similar average temperatures but can reach even higher maximums of 36°C (97°F). It experiences far less rain, with only 18 mm (0.7 in) falling across just 3 days, contributing to a drier atmosphere and a lower humidity level of 68%. For a more detailed look at February weather, you can visit Retalhuleu weather in February.
August and March present contrasting weather patterns in terms of temperature and precipitation. August typically sees temperatures ranging from a minimum of 22°C (72°F) to a maximum of 33°C (92°F), with high humidity at 82% and significant rainfall of 362 mm (14.3 in) over 29 days. In contrast, March features a slightly cooler minimum temperature of 20°C (68°F) but can reach highs of 36°C (96°F) with an average of 28°C (82°F). March is much drier, receiving only 44 mm (1.7 in) of rain over just 10 days and maintains a lower humidity level of 59%. For more detailed information, you can refer to Retalhuleu weather in March.
When comparing the weather in April and August, significant differences emerge. August tends to be cooler overall, with average temperatures around 27°C (80°F) and a maximum of 33°C (92°F), but it also experiences high humidity at 82% and substantial rainfall totaling 362 mm (14.3 in) over 29 days. In contrast, April is typically hotter, especially during the daytime, peaking at 37°C (99°F) and averaging 28°C (83°F), but it receives significantly less rainfall, with only 105 mm (4.1 in) over 17 days and lower humidity at 57%. For more detailed information on April's weather, you can visit Retalhuleu weather in April.
When comparing the weather in August and May, both months exhibit similar minimum and average temperatures, hovering around 22°C (72°F) and 27°C (80°F) respectively. However, May experiences a notably higher maximum temperature, reaching up to 37°C (98°F), making it hotter than August, which peaks at 33°C (92°F). Precipitation levels also differ significantly, with May recording 447 mm (17.6 in) over 31 days, compared to August's 362 mm (14.3 in) across 29 days. Additionally, the humidity in August is markedly higher at 82%, while May maintains a more comfortable 65%. For a detailed look at conditions in May, visit Retalhuleu weather in May.
In comparing the weather of August and June, both months feature similar temperature ranges, with minimums around 22°C (72°F) and average temperatures of about 27°C (80°F). However, June slightly edges out with a maximum temperature of 34°C (93°F), compared to August's peak of 33°C (92°F). Precipitation levels are also comparable, with August receiving 362 mm (14.3 in) over 29 days, while June totals 373 mm (14.7 in) across the same number of days. Notably, humidity levels are significantly higher in August at 82%, compared to June's more comfortable 66%. For a detailed view of June weather in Retalhuleu, you can visit Retalhuleu weather in June.
In comparing the weather of August and July, August tends to be slightly warmer, with minimum temperatures of 22°C (72°F) compared to July's 21°C (71°F). The average temperature remains consistent between the two months at around 27°C (81°F), but August sees a slightly higher maximum temperature of 33°C (92°F), while July reaches up to 34°C (93°F). Notably, August experiences significantly more rainfall, with 362 mm (14.3 in) over 29 days, while July has 292 mm (11.5 in) spread across 26 days. Additionally, August's humidity is higher, averaging 82%, in contrast to July's 75%. For more detailed insights on July's weather, check out Retalhuleu weather in July.
August and September in Retalhuleu present a transition in weather patterns, though both months share similar humidity levels of 82%. August typically features slightly warmer temperatures with a minimum of 22°C (72°F) and an average of 27°C (80°F), peaking at 33°C (92°F). In contrast, September showcases a minor decline in average temperature, with a minimum of 21°C (71°F) and an average of 26°C (80°F), while still reaching a maximum of 34°C (93°F). However, September sees an increase in precipitation, totaling 418 mm (16.5 in) over 29 days, compared to August's 362 mm (14.3 in). For more details, you can explore Retalhuleu weather in September.
In comparing August and October, we see notable similarities and slight differences in the weather patterns. Both months have a minimum temperature of around 22°C (71-72°F) and a maximum that can reach up to 33°C (92°F). However, the average temperature dips in October to 26°C (79°F) compared to 27°C (80°F) in August. Precipitation levels are slightly higher in October, with 378 mm (14.9 in) of rainfall, compared to 362 mm (14.3 in) in August, although both months experience rain on approximately 29 days. Humidity remains quite consistent, with October at 83% and August slightly lower at 82%. For more detailed information, you can visit Retalhuleu weather in October.
In comparing the weather between August and November, we observe notable differences in precipitation and humidity levels while temperatures remain quite similar. August experiences a higher average temperature ranging from a minimum of 22°C (72°F) to a maximum of 33°C (92°F) and sees a substantial amount of rainfall, totaling 362 mm (14.3 in) over 29 days. In contrast, November presents slightly cooler temperatures, with a minimum of 21°C (69°F) and a maximum of 34°C (93°F), but significantly less rainfall at 106 mm (4.2 in) over just 14 days, along with a slightly lower humidity level of 80%. For a more detailed look at November's weather, check out Retalhuleu weather in November.
In August, the weather is characterized by temperatures ranging from a mild 22°C (72°F) at night to a hot 33°C (92°F) during the day, accompanied by high humidity levels of 82%. This month also sees significant rainfall, with precipitation totaling 362 mm (14.3 in) over 29 days, making it one of the wettest months of the year. In contrast, December offers a slightly cooler but still comfortable climate, with temperatures varying between 19°C (67°F) and 34°C (94°F). The month is much drier, featuring only 26 mm (1.0 in) of precipitation over just 6 days and lower humidity levels at 76%. For more detailed information, check Retalhuleu weather in December.
In August, the weather in Retalhuleu showcases a distinctive blend of warm temperatures and high humidity, setting it apart from the other months of the year. With average highs reaching 33°C (92°F), residents and visitors alike can expect a notable warmth, complemented by a high humidity level of 82% that can make the heat feel more intense. This month is also characterized by significant rainfall, with nearly 30 days of precipitation contributing to a total of 362 mm (14.3 in). The combination of warmth and moisture not only influences daily activities but also enriches the lush landscape. For a deeper insight into weather patterns throughout the year, feel free to explore Retalhuleu Climate.