Last updated: August 21, 2025
August in Aso, Japan, presents a vibrant mix of warm temperatures and significant rainfall. With a maximum temperature reaching 35°C (96°F), the month averages at a comfortable 26°C (79°F), while night temperatures dip to a refreshing 16°C (62°F). However, the tropical climate is complemented by high humidity levels at 91%, contributing to a muggy atmosphere. Visitors should prepare for frequent rain, as 253 mm (10.0 in) of precipitation falls across 16 days, making it essential to embrace both the sunshine and showers of this lush and beautiful region.
In Aso, Japan, August marks the peak of summer, showcasing warm and vibrant temperatures. This month sees a minimum of 16°C (62°F), indicating a warm start to the day, while the average hovers around 26°C (79°F), making it pleasantly balmy. With daytime highs reaching up to 35°C (96°F), residents and visitors alike can expect to bask in the summer heat. The trend of rising temperatures from June through August illustrates the delightful progression into the summer season, following the cooler months characterized by sub-zero temperatures in January and February. As Aso transitions from the crispness of early spring to the sultry days of late summer, it becomes an enchanting destination for those seeking warmth and adventure.
August in Aso, Japan, experiences a striking climax of summer rainfall, with precipitation totaling 253 mm (10.0 in) across 16 days. This marks a drop from the intense monsoon patterns of July, which boasted a staggering 452 mm (17.8 in) over 21 days, but still contributes significantly to the region's lush landscapes. The trend shows that while July represents the peak of the wet season, August maintains substantial moisture levels, indicative of the challenging weather systems typical of this period. Following the July highs, August’s precipitation not only nourishes the local flora but also sets the stage for a gradual decline as the fall months approach.
In Aso, Japan, August brings a notable peak in humidity levels, registering at 91%, just slightly lower than the sweltering 92% experienced in July. This summer month follows a trend of increasing humidity that begins in the spring, with levels gradually rising from 78% in April to the muggy conditions of late summer. The shift is particularly pronounced from May onward, when humidity soars to 84% and beyond. As August wanes, humidity begins its slow decline, signaling the transition into autumn, with September dropping to a more comfortable 84%. This pattern underscores Aso's tropical climate, where warmth and moisture create a lush, verdant landscape, despite the intense summer humidity.
In Aso, Japan, the UV Index peaks during the summer months, with August reaching an index of 12, classified as extreme and requiring just 10 minutes of exposure before risking sunburn. Following a steady ascent from a moderate index of 4 in January, the UV levels sharply escalate by April, consistently maintaining extreme levels through the summer into early autumn. This pattern underscores the need for sun safety precautions during these high-risk months. It's essential for residents and visitors alike to remain vigilant, especially in August, as the sun's intensity can be deceiving. To learn more about the UV Index throughout the year, visit Aso UV Index.
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In August, Aso, Japan, basks in an impressive 294 hours of sunshine, the highest of the year, showcasing the peak of summer's radiant glow. This month stands out against the backdrop of steadily increasing daylight hours from January's modest 178 hours. From March to May, sunshine gradually climbs, reflecting the burgeoning warmth and vitality of spring, before hitting a crescendo in August. Interestingly, the subsequent months, particularly September with 248 hours, experience a gentle decline, signaling the transition to autumn. The overall trend highlights the joyful embrace of summer sun and the serene beauty of Aso, inviting visitors to revel in its bright skies before the cooler months approach.
In Aso, Japan, the likelihood of sunny weather experiences a notable shift throughout the year. August, despite being a peak summer month, sees a relatively modest 23% chance of sun, reflecting a trend of declining sunshine as the year progresses from the more favorable winter months. This dip is particularly evident when compared to the more promising conditions in the preceding months, such as January and February with 43%, and is a stark contrast to the sunnier outlook of October, which boasts a striking 58% chance of sunshine. As summer transitions to fall, it becomes increasingly apparent that while Aso enjoys its moments of brightness, August may not be the sun-drenched getaway that some may hope for, marking it as a transitional period poised between the vibrant sun of summer and the clearer skies of autumn.
In Aso, Japan, the daylight duration experiences a dynamic shift throughout the year, reflecting the changing seasons. Starting the year with a consistent 10 hours of daylight in January and February, there's a gradual increase as spring unfolds, peaking at 14 hours in both June and July, perfect for enjoying the vibrant landscapes. As summer gives way to autumn, daylight dips back to 13 hours in August before further decreasing to 12 hours in September. This transition underscores the natural rhythm of the area, with daylight hours tapering to 11 hours in October and returning to 10 hours by year's end. The cyclical pattern highlights Aso's unique climate, inviting visitors to embrace each season's distinctive charm.
The August winds in Aso, Japan offer a gentle breath of air, with an average speed of 2.1 m/s (5 mph). This marks a slight dip from the winds of July and a continuation of a subtle downward trend as summer transitions into fall. Throughout the year, wind speeds fluctuate, peaking in January at 2.3 m/s and dipping to a low of 1.7 m/s in June. Notably, the consistency of winds in the late months, averaging around 2.1 m/s in both November and August, hints at the region's stability during these transitional periods. Overall, while August's breezes may not be the strongest, they embody the calm before the seasonal change, inviting both locals and visitors to enjoy the serene beauty of Aso.
Weather in Aso varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Aso, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present starkly contrasting weather conditions. In August, temperatures soar, with an average of 26°C (79°F) and peaks reaching up to 35°C (96°F), accompanied by high humidity levels of 91%. With about 253 mm (10.0 in) of precipitation spread over 16 days, the month is characterized by a warm and wet atmosphere. In contrast, January brings a chillier climate, featuring much lower temperatures, with an average of just 4°C (39°F) and maximums of 16°C (62°F). This winter month experiences significantly less precipitation, totaling 58 mm (2.3 in) over only 6 days, and a humidity level of 75%. For a closer look at January weather specifics in Aso, you can visit Aso weather in January.
August and February present starkly contrasting weather conditions. In August, temperatures soar with a minimum of 16°C (62°F) and can reach highs of 35°C (96°F), accompanied by significant humidity at 91%. The month also sees considerable rainfall, with 253 mm (10.0 in) spread over 16 days. In contrast, February is much cooler, with temperatures ranging from a frigid minimum of -8°C (18°F) to a maximum of 19°C (67°F) and an average of just 5°C (41°F). Precipitation in February is also lighter, totaling 98 mm (3.9 in) over 10 days, and the humidity is lower at 71%. For more specific insights on the climate during this month, check out Aso weather in February.
August and March present contrasting weather experiences. August boasts higher temperatures, with averages around 26°C (79°F) and maximums reaching up to 35°C (96°F), while March tends to be much cooler, averaging 9°C (49°F) and peaking at 23°C (73°F). Additionally, August is characterized by significant humidity at 91% and substantial precipitation of 253 mm (10.0 in) over 16 days, compared to March's lower humidity of 71% and less rainfall of 137 mm (5.4 in) over 12 days. For those interested in more specific details, check out this Aso weather in March.
When comparing the weather in August and April, notable differences emerge in both temperature and precipitation. August experiences significantly warmer temperatures, with a minimum of 16°C (62°F) and an average of 26°C (79°F), reaching a maximum of 35°C (96°F). In contrast, April is much cooler, starting at a minimum of -1°C (31°F) and averaging 14°C (57°F), peaking at 27°C (81°F). Precipitation levels also vary, with August receiving 253 mm (10.0 in) over 16 days, while April has a milder 135 mm (5.3 in) across 10 days. Additionally, humidity is higher in August at 91%, compared to April's 78%. For a detailed insight into April weather in the Aso region, you can refer to Aso weather in April.
August and May present quite contrasting weather patterns. In August, temperatures soar with a minimum of 16°C (62°F) and an average of 26°C (79°F), reaching a maximum of 35°C (96°F). The month is characterized by high humidity at 91%, accompanied by significant rainfall totaling 253 mm (10.0 in) over 16 days. In contrast, May experiences much cooler conditions, with a minimum temperature of 2°C (36°F) and an average of 18°C (65°F), peaking at 30°C (85°F). Precipitation in May is slightly lower at 209 mm (8.2 in) over 13 days, and humidity is also more moderate at 84%. For more specifics on weather conditions in this period, you can refer to Aso weather in May.
When comparing the weather in August and June, August tends to be warmer and more humid. In August, temperatures range from a minimum of 16°C (62°F) to a maximum of 35°C (96°F), with an average of 26°C (79°F) and humidity levels reaching 91%. In contrast, June is cooler, with temperatures ranging from 11°C (52°F) to 31°C (88°F) and an average of 21°C (71°F), accompanied by a slightly lower humidity of 86%. Interestingly, both months experience similar levels of precipitation, with June receiving 276 mm (10.9 in) and August 253 mm (10.0 in), each having rainfall on about 16 days. For more specific insights into the weather in June in the region, you can check this link: Aso weather in June.
In comparing the weather between July and August, we see some notable differences. August tends to be slightly warmer, with average temperatures reaching 26°C (79°F) compared to July's average of 25°C (77°F). Both months experience high humidity, with August at 91% and July just slightly higher at 92%. However, August has significantly less rainfall, with 253 mm (10.0 in) over 16 days, while July sees a much higher total of 452 mm (17.8 in) over 21 days. This indicates that while both months are wet, July is notably rainier. For more specific details on July's weather, you can check this link: Aso weather in July.
August typically experiences warmer temperatures with an average of 26°C (79°F), peaking at 35°C (96°F), making it the hotter month compared to September, which averages a milder 23°C (73°F) with a maximum of 33°C (92°F). Precipitation levels are notably higher in August, with 253 mm (10.0 in) over 16 days, while September sees a decrease to 192 mm (7.6 in) over 15 days. Additionally, humidity is slightly higher in August at 91%, compared to 84% in September. For a closer look at September conditions, check out Aso weather in September.
August and October present distinct contrasts in weather. In August, temperatures soar with a minimum of 16°C (62°F) and highs reaching up to 35°C (96°F), making it the warmest month of the year. However, this heat is coupled with high humidity levels at 91% and significant rainfall, accumulating to 253 mm (10.0 in) over 16 days. In stark contrast, October experiences much cooler weather, with temperatures ranging from a chilly 4°C (40°F) to a comfortable 30°C (87°F) and an average of 17°C (63°F). Rainfall in October is significantly reduced to 122 mm (4.8 in) over just 9 days, along with lower humidity at 83%. For more insights on the weather during this month, you can check Aso weather in October.
August and November present strikingly different weather conditions. In August, temperatures soar with minimums around 16°C (62°F) and maximums peaking at 35°C (96°F), accompanied by high humidity levels of 91% and substantial precipitation of 253 mm (10.0 in) over 16 days. In contrast, November brings a much cooler climate, with minimum temperatures dropping to -4°C (25°F) and averages settling at 11°C (51°F). The maximum temperature reaches a more moderate 24°C (76°F), while precipitation decreases significantly to 60 mm (2.3 in) over just 8 days, and humidity remains lower at 81%. This clear transition from the heat and humidity of August to the chill of November is marked by the shift in both temperature and precipitation patterns. For more specific insights into the weather during November, you can check Aso weather in November.
The weather in August is characterized by much warmer temperatures, with minimums around 16°C (62°F) and maximums reaching up to 35°C (96°F), making it a hot and humid month, with an average humidity of 91%. In contrast, December experiences notably cooler conditions, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 21°C (70°F), yielding an average of just 5°C (41°F). Precipitation also varies significantly; August sees 253 mm (10.0 in) over 16 days, while December has a much lighter rainfall of 70 mm (2.8 in) across only 7 days. For a closer look at what to expect in the colder month, check out Aso weather in December.
August in Aso brings a sizzling blend of warmth and high humidity, making it distinctly different from the milder months preceding it. With average temperatures soaring and frequent rainy days, the air is often thick with moisture. This combination can create an oppressive atmosphere, challenging even the most seasoned travelers. Despite the heat, Aso's vibrant landscapes remain a striking contrast to the often gray skies brought by the increased precipitation common during this month. For those planning a visit, understanding the nuances of Aso's August weather is essential; you can find more detailed information at Aso Climate.