Last updated: August 21, 2025
In Ishigaki, Japan, the weather in August offers a tropical delight with average temperatures reaching a pleasant 28°C (83°F), peaking at 30°C (86°F) and rarely dipping below 26°C (79°F). Visitors can expect a considerable amount of precipitation, with 280 mm (11.0 in) falling over approximately 21 days, contributing to the region's lush landscapes. The humidity hovers around a steamy 83%, enhancing the island's vibrant, tropical atmosphere. Despite the frequent rains, the warm conditions make Ishigaki a captivating destination for those seeking adventure and natural beauty in the heart of summer.
In August, Ishigaki, Japan, experiences delightful warmth, with temperatures typically ranging from a minimum of 26°C (79°F) to a maximum of 30°C (86°F). The average temperature during this time hovers around 28°C (83°F), making it one of the hottest months of the year. This heat builds on the increasing trend observed from the preceding months, where temperatures gradually rise from a comfortable 20°C (69°F) in January to a sultry peak in August. As the summer season reaches its zenith, visitors can expect vibrant beach days and lush landscapes, ensuring a lively atmosphere perfect for outdoor adventures. With consistently warm weather, August is ideal for soaking up the sun and embracing the natural beauty of this tropical paradise.
In August, Ishigaki, Japan, experiences a significant surge in precipitation, with an impressive 280 mm (11.0 in) of rain spread over 21 days, making it the wettest month of the year. This substantial increase in rainfall marks a peak following a gradual rise from the 182 mm (7.2 in) in July, reflecting the intensifying summer monsoon patterns. The trend highlights a notable shift as the islands welcome the typhoon season, resulting in more frequent yet brief downpours that contribute to the lush, vibrant landscapes for which the region is renowned. As the month transitions into September, the precipitation levels drop slightly, but remain high, indicating the lasting influence of summer rains.
In Ishigaki, Japan, August marks a peak in the summer humidity cycle, with levels resting at an impressive 83%. The month showcases a slight decrease from the preceding months, which consistently hovered around 84% since June. This enduring embrace of moisture reflects the island's tropical climate, where humidity gradually increases from January’s 76% to a summer apex, before slowly tapering off as the year progresses into autumn. Such conditions create an environment rich in lush vegetation and vibrant marine life, making Ishigaki a haven for nature lovers seeking both adventure and relaxation during the balmy August days.
In August, Ishigaki, Japan, experiences a persistent and intense UV Index of 13, falling into the extreme exposure category. With a burn time of just 10 minutes, it's essential for residents and visitors alike to take precautions against harmful sun exposure. This trend of increasing UV levels becomes evident as July sees the same index, while previous months like March to June also reflect a highly concerning extreme level. As the summer months peak, ensuring skin protection through sunscreen and appropriate clothing is vital for safety. For more detailed information on UV levels throughout the year, visit Ishigaki UV Index.
UV Risk Categories
In August, Ishigaki, Japan basks in a warm embrace of 315 hours of sunshine, making it one of the sunniest months of the year. This sun-drenched period follows a peak in July with 334 hours, showcasing the island's vibrant summer atmosphere. While the days gradually shorten in September with 297 hours, August's abundant sunshine sets the tone for beach adventures and outdoor exploration, creating a delightful contrast to the cooler, less sunny months that follow in autumn. Overall, the trend of increasing sunlight from winter's low of 163 hours in January to the sunny heights of mid-summer highlights Ishigaki's allure as a tropical paradise.
In August, Ishigaki, Japan experiences a 33% chance of sunny weather, a slight uptick from the lower probabilities seen in June (9%) and July (27%). This summer month, while not the sunniest, offers a more promising outlook compared to the earlier part of the season, hinting at the region’s typical tropical climate. Nevertheless, August is still eclipsed by the delightful September, which boasts a 61% likelihood of sunshine. As the year progresses toward autumn, the chances of sunny days improve significantly, showcasing a wonderful transition that locals and visitors alike can rejoice in.
In Ishigaki, Japan, the month of August offers a delightful balance of daylight, with approximately 12 hours illuminating the island each day. This duration marks a slight decline from the peak of 13 hours observed during the summer months of May through July, indicating a gradual transition towards autumn. As the year progresses, daylight duration decreases, reflecting a clear pattern: January starts with 10 hours and reaches a maximum in mid-year before easing back. The consistent daylight in August, paired with warm temperatures, makes it an ideal time for outdoor adventures and appreciating the lush natural beauty of Ishigaki.
In Ishigaki, Japan, the August wind whispers a gentle 6.1 m/s (14 mph), a slight dip from the breezy heights of summer. As the year progresses from the invigorating gusts of January at 8.4 m/s to the mellow 5.4 m/s in September, a noticeable trend emerges: wind strength tends to wane as the summer heat peaks. The winds are typically strongest at the start and end of the year, with a notable resurgence in October when speeds reach 7.8 m/s (18 mph). This pattern highlights Ishigaki's transitional climate, where the playful winds of late summer bid farewell to the sweltering heat before ushering in the cooler months.
Weather in Ishigaki varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Ishigaki, focusing on differences in temperature, rainfall, humidity, and UV levels.
August weather is characterized by high temperatures, with a minimum of 26°C (79°F) and an average of 28°C (83°F), peaking at 30°C (86°F). This month also experiences significant rain, accumulating 280 mm (11.0 in) over 21 days, leading to high humidity levels of 83%. In contrast, January offers a much cooler climate, featuring a minimum temperature of 12°C (55°F) and an average of 20°C (69°F), with a maximum reaching 25°C (76°F). Rainfall is notably less, with 109 mm (4.3 in) over 15 days, combined with a slightly lower humidity of 76%. For more specific details on January weather, visit Ishigaki weather in January.
In August, the weather is significantly warmer and more humid, with minimum temperatures around 26°C (79°F) and average highs reaching up to 30°C (86°F). This month also sees considerable precipitation, with around 280 mm (11.0 in) expected over approximately 21 days of rain and humidity levels averaging 83%. In contrast, February offers a much cooler climate, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 25°C (77°F) and an average of 20°C (69°F). The precipitation is notably less, at 82 mm (3.2 in) over 14 days, and the humidity is lower at 74%. For additional details on February weather conditions, you can check out Ishigaki weather in February.
In August, the weather is characterized by warm temperatures, with a minimum of 26°C (79°F) and an average of 28°C (83°F), peaking at 30°C (86°F). This month also brings significant rainfall, averaging 280 mm (11.0 in) over 21 days, along with high humidity levels at 83%. In contrast, March experiences cooler temperatures, starting with a minimum of 16°C (61°F) and averaging 22°C (71°F), reaching a maximum of 26°C (78°F). Precipitation in March is less intense, totaling 140 mm (5.5 in) over 14 days, and the humidity is slightly lower at 79%. For more detailed information about March weather in a specific location, you can check Ishigaki weather in March.
In August, the weather is significantly warmer than in April, with minimum temperatures around 26°C (79°F) and average highs peaking at 30°C (86°F). The humidity reaches a high of 83%, contributing to a muggy atmosphere, while precipitation is marked by 280 mm (11.0 in) over 21 days, making it one of the rainiest months. In contrast, April offers a more mild climate, with temperatures ranging from a minimum of 17°C (63°F) to an average of 23°C (74°F) and maximums reaching 27°C (81°F). The precipitation in April is considerably lower at 146 mm (5.8 in) over 13 days, and the humidity is slightly less intense at 82%. For more details on April's weather, you can check Ishigaki weather in April.
When comparing the weather in August and May, it's clear that August is significantly warmer and wetter. In August, temperatures range from a minimum of 26°C (79°F) to a maximum of 30°C (86°F), with an average of 28°C (83°F). In contrast, May's temperatures are slightly cooler, with a minimum of 21°C (71°F) and a maximum of 29°C (85°F), averaging 26°C (79°F). Additionally, August experiences much higher precipitation, with 280 mm (11.0 in) over 21 days, compared to May's 139 mm (5.5 in) over just 14 days. Humidity levels are fairly similar, with August at 83% and May at 84%. For more specific details about May weather, you can check Ishigaki weather in May.
In comparing the weather of June and August, we find that both months share similar temperature ranges, with August showing a slightly higher minimum temperature of 26°C compared to June's 25°C. The average temperature remains consistent at 28°C for both months, while the maximum temperature peaks at 30°C. However, August sees significantly more precipitation, with 280 mm over 21 days, compared to June's 184 mm over 16 days, making it the wetter of the two months. Humidity levels are also quite high in both months, with August at 83% and June at 84%. For a closer look at June weather patterns, you can check Ishigaki weather in June.
In comparing the weather between July and August, we notice that both months have similar maximum temperatures, with August averaging 28°C (83°F) and July at 29°C (84°F). However, August tends to be slightly cooler at night, with a minimum temperature of 26°C (79°F) compared to July's 27°C (80°F). Precipitation also increases significantly in August, reaching 280 mm (11.0 in) over 21 days, while July experiences less rain at 182 mm (7.2 in) across 16 days. Humidity levels remain comparable, with August at 83% and July slightly higher at 84%. For more detailed information on July weather in Ishigaki, you can visit Ishigaki weather in July.
August and September exhibit similar temperature ranges, with both months showing an average temperature of 28°C (83°F). However, August tends to be slightly warmer, reaching a maximum of 30°C (86°F), compared to September's peak of 30°C (87°F). When it comes to precipitation, August experiences significantly more rainfall, totaling 280 mm (11.0 in) over 21 days, while September sees a reduction with 182 mm (7.2 in) over 17 days. Humidity levels remain fairly consistent, with August at 83% and September at 82%. Overall, September offers a slight reprieve from the heavy rains of August while maintaining similar warmth. For more details on September weather conditions, you can visit Ishigaki weather in September.
In August, the weather is typically hotter and more humid, with average temperatures around 28°C (83°F) and maximums reaching up to 30°C (86°F). This month also sees a significant amount of rainfall, with approximately 280 mm (11.0 in) of precipitation over 21 days, which contributes to the high humidity level of 83%. In contrast, October presents more moderate conditions, featuring a slight drop in temperature with averages of 26°C (79°F) and maximums of 29°C (85°F). Precipitation in October decreases to 173 mm (6.8 in) over 17 days, and humidity remains relatively high at 81%. For a detailed look into the weather during this month, you can check Ishigaki weather in October.
August and November in Ishigaki exhibit notable differences in weather patterns. August features higher temperatures, with a minimum of 26°C (79°F) and an average of 28°C (83°F), reaching up to 30°C (86°F). In contrast, November sees cooler temperatures, with a minimum of 20°C (68°F) and an average of 24°C (76°F), peaking at 27°C (81°F). Additionally, August is characterized by significantly higher precipitation, totaling 280 mm (11.0 in) over 21 rainy days, compared to November's 151 mm (5.9 in) spread across 16 days. Humidity remains relatively similar, at 83% in August and 80% in November. For more details, you can refer to Ishigaki weather in November.
August and December present contrasting weather patterns. In August, temperatures are warm, with a minimum of 26°C (79°F) and an average of 28°C (83°F), reaching a maximum of 30°C (86°F). The month is also quite wet, receiving 280 mm (11.0 in) of precipitation over 21 days, accompanied by high humidity at 83%. In contrast, December experiences cooler temperatures, with a minimum of 14°C (57°F), an average of 22°C (71°F), and a maximum of 26°C (79°F). Although it is still rainy, the total precipitation is lower at 197 mm (7.8 in) across 20 days, and the humidity is slightly less at 78%. For more specific details about the weather during this month, you can refer to Ishigaki weather in December.
In August, Ishigaki experiences a distinctly tropical climate, characterized by warm temperatures and high humidity. Unlike the cooler months, the island sees an average temperature that hovers around a balmy 28°C, with peak days reaching up to 30°C. This month is also marked by considerable rainfall, occurring on about 21 days, leading to an overall wetter environment compared to other months. Those planning a visit can expect the lush landscapes that thrive in such conditions, making it an ideal time for water activities and exploring the rich natural beauty. For further insights into the island's weather patterns, check out Ishigaki Climate.