Last updated: August 21, 2025
Experience the vibrant August weather in Miyajima, Japan, where temperatures soar with a maximum of 35°C (96°F) and maintain a warm average of 28°C (82°F). Nights cool down with a minimum of 20°C (67°F), offering a refreshing respite. This month sees an impressive precipitation total of 256 mm (10.1 in) across 14 rainy days, contributing to the island’s lush scenery. With a humidity level peaking at 93%, the air feels rich and alive, making it a unique time to explore Miyajima's natural beauty and cultural heritage.
In August, Miyajima experiences the warmth of summer at its peak, with temperatures ranging from a minimum of 20°C (67°F) to a blistering maximum of 35°C (96°F). This month presents an average temperature of 28°C (82°F), making it one of the hottest times of the year. Following a trend from the previous months, the temperatures have steadily climbed from the 14°C (57°F) lows of June to the sweltering highs of August. With such warmth, visitors can expect a vibrant atmosphere, perfect for enjoying the island's beautiful attractions, while keeping hydrated and seeking shade during the hottest parts of the day.
August in Miyajima, Japan, showcases a significant spike in precipitation, recording 256 mm (10.1 in) over 14 days. This marks a drop from the torrential rains of July, where 386 mm (15.2 in) fell over 19 days, yet still places August among the wetter months of the year. The rainfall during this period often contributes to the lush greenery that visitors admire, although the humidity can be quite high. As summer wanes into September, the precipitation decreases slightly to 237 mm (9.3 in), indicating a shift in weather patterns as the region prepares for the milder autumn. This trend highlights Miyajima's seasonal climate, where a distinct wet summer gives way to a more temperate fall.
Miyajima, Japan, experiences a significant shift in humidity throughout the year, peaking during the summer months. In August, the humidity hovers around a steamy 93%, just slightly lower than the record-setting 95% of July. This summer humidity follows a gradual increase that starts in April, marked by a jump to 84% in May and climbing sharply through the warmer months. The trend illustrates a blend of warmth and moisture, creating a lush environment that is quintessential to Miyajima's charm. As autumn approaches, humidity begins to recede, settling at 84% in September and continuing to drop into the cooler months. Overall, the distinct seasonal humidity pattern highlights the island's tropical-like climate, making August a particularly heavy and sultry month.
In August, Miyajima, Japan, experiences its highest UV Index, peaking at 12—an indication of extreme sun exposure and a mere 10 minutes before sunburn can occur. This trend of soaring UV levels, which began in March with an increase to 8 and continued to rise steadily through the summer months, highlights the growing intensity of sunlight as the seasons progress. Notably, both July and August share this extreme rating, prompting sun safety measures to be top of mind for locals and visitors alike. With September showing a slight decrease to 10, one should remain vigilant throughout the summer. For more detailed UV forecasts, visit Miyajima UV Index.
UV Risk Categories
August in Miyajima, Japan, showcases the area's breathtaking sunshine, as the month boasts a remarkable 308 hours of bright, golden light. This peak in sunshine hours reflects a delightful trend as the year progresses; starting from just 184 hours in January, there is a steady increase in daylight, culminating in the summer's apex. Following August, sunshine hours begin to taper off in September, dropping to 260 hours, yet the overall yearly trend highlights a gradual buildup of daylight leading to the vibrant summer months. This seasonal rhythm invites travelers to bask in the warmth and beauty of Miyajima during its sunniest days, making it an ideal time for exploration and appreciation of the island's stunning landscapes.
As summer wanes in Miyajima, Japan, the likelihood of sunny weather in August drops to a modest 25%, making it one of the less favorable months for sun-seekers. This trend reflects a gradual decline in sunshine chances from the earlier summer months, as July experiences an even lower probability at 23%. While the sun may be elusive during this period, October and November promise a brighter outlook, with significantly higher chances of sunshine at 59% and 52% respectively. Thus, if you’re hoping for sun during your August visit, be prepared for a bit of unpredictability; it might be best to keep an umbrella handy and embrace the charm of Miyajima’s natural beauty, rain or shine.
In Miyajima, Japan, the month of August witnesses a rich tapestry of daylight, offering around 13 hours of sunshine. As summer peaks, the duration remains comparable to the earlier months of May and June, which also boast the same amount of daylight. However, a gentle decline is evident as the year progresses; following August, daylight hours gradually decrease to 12 hours in September, before settling at 10 hours in November. This trend illustrates a clear seasonal shift from the exuberant brightness of summer days back to the more muted light of autumn, encapsulating the dynamic beauty of Miyajima's natural environment.
In August, Miyajima experiences a gentle breeze with an average wind speed of 2.6 m/s (about 6 mph), slightly stronger than the calmer summer months of June and July. This subtle uptick in wind speed often brings a refreshing respite as the heat of late summer peaks. Interestingly, the winds in August are part of a broader trend, with speeds tapering off in September to 2.3 m/s and remaining steady through October. Overall, the humidity of summer is nicely complemented by these moderate winds, providing a serene atmosphere for visitors exploring the island’s lush landscapes and cultural treasures. The breeze in August, while mild, plays a significant role in enhancing the charm of Miyajima during this vibrant time of year.
Weather in Miyajima varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Miyajima, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present stark contrasts in weather. In August, temperatures soar with a minimum of 20°C (67°F) and an average of 28°C (82°F), reaching highs of 35°C (96°F). This month is also characterized by high humidity at 93% and considerable rainfall, totaling 256 mm (10.1 in) over 14 days. Conversely, January experiences much colder conditions, with temperatures plummeting to a minimum of -4°C (25°F) and averaging only 5°C (42°F), peaking at 15°C (59°F). Precipitation is significantly lower at 49 mm (1.9 in) over just 6 days, and humidity drops to 76%. For more detailed weather insights, check Miyajima weather in January.
August and February present stark contrasts in weather conditions. In August, temperatures soar with a minimum of 20°C (67°F) and an average high of 35°C (96°F), accompanied by high humidity at 93% and significant rainfall of 256 mm (10.1 in) over 14 days. This creates a sultry and wet atmosphere. Conversely, February brings a much cooler climate, with temperatures dipping to a minimum of -4°C (26°F) and a pleasant maximum of 20°C (68°F), along with lower precipitation of 69 mm (2.7 in) spread across just 7 days and a humidity level of 72%. For more details on February weather specifically, you can visit Miyajima weather in February.
August and March present starkly contrasting weather conditions. In August, temperatures soar with an average of 28°C (82°F), reaching a maximum of 35°C (96°F), while humidity remains high at 93%. This peak summer month also faces significant rainfall, totaling 256 mm (10.1 in) over about 14 days. In contrast, March experiences milder temperatures, with an average of 10°C (50°F) and a maximum of 22°C (71°F), making it a much cooler time of year. The precipitation in March is significantly lower, at 125 mm (4.9 in) over 10 days, and humidity is also reduced to 69%. For more details on March weather, you can visit Miyajima weather in March.
When comparing the weather in August and April, it's clear that August is significantly warmer and more humid. In August, temperatures range from a minimum of 20°C (67°F) to a scorching maximum of 35°C (96°F), with an average temperature of 28°C (82°F). In contrast, April enjoys milder temperatures, with highs reaching only 24°C (76°F) and an average of 14°C (58°F). Furthermore, while August sees a hefty 256 mm (10.1 in) of precipitation over 14 days and a humidity level of 93%, April has a more manageable 137 mm (5.4 in) of rain over just 9 days and a lower humidity of 75%. For more detailed weather information for April, you can visit Miyajima weather in April.
In comparing the weather between May and August, it's clear that August is significantly warmer and more humid. Average temperatures in August reach a high of 28°C (82°F), with a maximum of 35°C (96°F), while May sees much cooler temperatures, averaging 19°C (66°F) and peaking at 28°C (83°F). Additionally, August experiences a higher level of precipitation, with 256 mm (10.1 in) over 14 days, compared to May's 136 mm (5.4 in) over just 9 days. The humidity also rises sharply in August, reaching an average of 93%, compared to 84% in May. For more detailed information, you can check Miyajima weather in May.
When comparing the weather in August and June, it’s evident that August tends to be warmer and more humid. In August, temperatures range from a minimum of 20°C (67°F) to a maximum of 35°C (96°F), with an average of 28°C (82°F). This month also experiences significant rainfall, with about 256 mm (10.1 in) of precipitation over 14 days and a high humidity level of 93%. In contrast, June features milder temperatures, with a minimum of 14°C (57°F), a maximum of 29°C (85°F), and an average of 22°C (72°F). Rainfall in June is lower at 181 mm (7.1 in) over the same number of days, accompanied by a humidity level of 88%. For more details on June weather, check out Miyajima weather in June.
The weather in August shows a slight increase in average temperature compared to July, with minimum temperatures of 20°C (67°F) and an average of 28°C (82°F) versus July's minimum of 18°C (65°F) and average of 26°C (79°F). Both months reach a maximum of 35°C (95°F) and maintain high humidity levels, though August's average humidity is slightly lower at 93%, compared to 95% in July. Precipitation levels are also reduced in August, with 256 mm (10.1 in) over 14 rainy days, compared to July's 386 mm (15.2 in) over 19 days. For more details on July's weather, you can check Miyajima weather in July.
August experiences hotter temperatures, with average highs reaching up to 35°C (96°F), while September sees a more moderate average temperature of 24°C (75°F). Although both months have approximately the same number of rainy days—14—the total precipitation in August is slightly higher at 256 mm (10.1 in) compared to September's 237 mm (9.3 in). Humidity levels also decrease in September, dropping from a high of 93% in August to 84%. For more detailed insights, you can check Miyajima weather in September.
August and October present a notable contrast in weather patterns. In August, temperatures soar with a minimum of 20°C (67°F) and an average of 28°C (82°F), reaching highs of up to 35°C (96°F). The month is characterized by high humidity at 93% and substantial rainfall, accumulating 256 mm (10.1 in) over 14 days. In contrast, October experiences much milder conditions, with a minimum temperature of 8°C (46°F), an average of 19°C (66°F), and a maximum of 29°C (85°F). Rainfall is also reduced to 172 mm (6.8 in) across 10 days, and the humidity drops to a more comfortable 79%. For those interested in what to expect during this time, check out Miyajima weather in October.
In August, the weather is characterized by warm temperatures, with a minimum of 20°C (67°F) and an average high of 28°C (82°F), often reaching a maximum of 35°C (96°F). This month experiences significant precipitation, with 256 mm (10.1 in) spread over 14 days and high humidity at 93%. In contrast, November brings a notable drop in temperatures, with lows plunging to 2°C (36°F) and an average high of just 13°C (55°F), peaking at 23°C (74°F). Furthermore, precipitation decreases dramatically to 37 mm (1.5 in) over only 5 days, and humidity levels also decline to 76%. For a more detailed overview of November conditions, you can check Miyajima weather in November.
August and December present starkly contrasting weather conditions. In August, temperatures range from a minimum of 20°C (67°F) to a scorching maximum of 35°C (96°F), accompanied by high humidity at 93%. Precipitation is also significant during this month, with 256 mm (10.1 in) of rain spread over 14 days. In contrast, December experiences much cooler temperatures, averaging 7°C (46°F), with lows dipping to -1°C (31°F) and highs reaching 20°C (69°F). Rainfall is noticeably less, totaling just 61 mm (2.4 in) over 6 days, and humidity declines to 75%. For more detailed information, you can check Miyajima weather in December.
August in Miyajima brings hot and humid conditions, making it a stark contrast to the cooler and more temperate months that precede and follow it. With average temperatures soaring to a steamy 28°C and peaks reaching up to 35°C, outdoor activities may feel intense during the day. Frequent rainfall is also a hallmark of this month, as over two weeks can experience precipitation, contributing to an overall high humidity level of 93%. This unique blend of heat and moisture makes August a vibrant yet challenging month for tourists. For a deeper understanding of what to expect weather-wise, explore the detailed information found in Miyajima Climate.