Last updated: August 21, 2025
In August, Tsushima, Japan, experiences warm and humid weather, with maximum temperatures reaching up to 31°C (87°F) and an average of 27°C (81°F). The coastal charm of this island is tempered by the persistent humidity, often hovering around a notable 93%. During this month, precipitation is also a significant factor, with a total of 171 mm (6.7 in) falling over approximately 13 days, creating a lush environment. Travelers should prepare for both the heat and the occasional rain, making August a uniquely vibrant time to explore Tsushima's natural beauty.
In August, Tsushima, Japan experiences the height of summer, with temperatures soaring to an average of 27°C (81°F), peaking at a warm 31°C (87°F). This month's weather marks a clear transition from the milder conditions of July, where the average temperature was notably lower at 25°C (77°F). As the minimum temperature rises to 23°C (73°F), it provides a comfortable warmth that invites outdoor activities and exploration. The warm and humid clime, characteristic of August, emphasizes a thriving natural landscape, making it an ideal time for visitors to soak in the island's stunning vistas and local culture. As summer lingers, the consistent temperatures reflect the vibrant and dynamic atmosphere of Tsushima during this sun-kissed month.
In August, Tsushima experiences significant rainfall, with an average precipitation of 171 mm (6.7 in) spread over 13 days, showcasing a decline from the record-setting July levels of 273 mm. This drop in precipitation marks a transitional period, as the island prepares for the even wetter days of September, which typically see an average of 296 mm. The combination of consistent rainfall through the summer months and a substantial number of rainy days underscores Tsushima's humid climate, while the gradual decrease from July to August hints at a shift in weather patterns as autumn approaches.
In August, Tsushima, Japan, experiences its peak humidity, registering an impressive 93%. This month follows a trend of rising moisture that begins in the cooler months, with humidity levels gradually increasing from 72% in January to a staggering 95% by July. Though August sees a slight dip from July's highest point, the humidity remains significantly elevated, typical for summer. This pattern underscores Tsushima's tropical climate, where humid summer months are interspersed with milder, drier conditions in spring and fall, culminating in a distinct seasonal rhythm that defines the island's weather throughout the year.
In August, Tsushima, Japan experiences an extreme UV Index of 12, consistent with the preceding month of July, indicating the height of summer sun intensity when exposure can lead to skin damage in just 10 minutes. This period marks a continuation of the severe UV conditions that began in June, where the UV Index reached 11. Compared to the earlier months of the year, where values oscillated between 4 to 10, it’s evident that sun safety precautions are crucial during this peak season. Both locals and visitors should embrace protective measures and stay informed by checking resources like Tsushima UV Index to navigate this powerful sunlight effectively.
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In August, Tsushima, Japan basks in a remarkable 313 hours of sunshine, making it the sunniest month of the year. This peak in daylight is a delightful continuation of a seasonal trend that kicks off with the gradual increase from 193 hours in January, climbing steadily through the spring. By May, the days stretch to 307 hours, heralding the approach of summer. Despite a slight dip in July, August shines brightly, surpassing the previous months and setting the stage for an enchanting late summer experience. As the days shorten into September with 257 hours of sunshine, one can't help but appreciate the vibrant warmth that characterizes the summer months on this beautiful island.
In August, the likelihood of sunny weather in Tsushima, Japan, stands at 31%, a slight dip compared to the summer months preceding it. This trend reveals that as the summer progresses, the chance for sunny days diminishes, with a notable low of 24% in July. While August offers a modest chance of sunshine, it pales in comparison to the more optimistic forecasts seen in October and November, where sunny days soar to 54% and 53%, respectively. Overall, if you're hoping for bright skies in August, it's wise to prepare for a mix of sun and clouds, embracing the beauty of this transitional season.
In August in Tsushima, Japan, daylight lingers for an appealing 13 hours, providing ample opportunity to bask in the summer glow or explore the picturesque landscapes. This duration, while slightly shorter than the peak of 14 hours seen in both June and July, still allows for a vibrant array of outdoor activities. As the season transitions, daylight begins to wane, setting the stage for the gradual decline towards autumn, where September offers 12 hours and October further reduces to 11 hours. This rhythmic ebb and flow of daylight not only marks the changing seasons but also enriches life on the island, inviting residents and visitors alike to savor the long summer evenings before they gently fade.
In August, the winds in Tsushima, Japan maintain a moderate pace, averaging 6.2 m/s (14 mph). This gentle breeze reflects a trend of declining wind speeds as the summer progresses, following a peak earlier in the year. From a robust 8.4 m/s (19 mph) in January, wind speeds gradually diminish through the spring and summer months, reaching their lowest in June at 5.0 m/s (11 mph). As autumn approaches, a slight increase occurs, with speeds rising again to 7.5 m/s (17 mph) by September. This ebb and flow of wind not only shapes the island’s climate but also enhances its tranquil summertime charm, inviting visitors to experience the natural beauty and serenity of Tsushima.
Weather in Tsushima varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Tsushima, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present starkly contrasting weather conditions. In August, temperatures typically range from a minimum of 23°C (73°F) to a maximum of 31°C (87°F), with an average of 27°C (81°F). This summer month is characterized by high humidity at 93% and significant precipitation, averaging 171 mm (6.7 in) over 13 days. Conversely, January experiences cold weather, with temperatures ranging from a chilly -2°C (28°F) to a milder 19°C (66°F) and an average of just 8°C (47°F). Precipitation in January is considerably less, totaling 68 mm (2.7 in) over only 8 days, and humidity falls to 72%. For more detailed insights into January weather, you can visit Tsushima weather in January.
In August, the weather is characterized by warm temperatures, with a minimum of 23°C (73°F) and an average of 27°C (81°F), reaching a peak of 31°C (87°F). This month is also marked by high humidity at 93% and considerable precipitation, averaging 171 mm (6.7 in) over approximately 13 days. In contrast, February experiences much cooler conditions, with temperatures ranging from a minimum of -1°C (31°F) to an average of 8°C (47°F) and a maximum of 17°C (62°F). Precipitation is significantly lower at 59 mm (2.3 in) over just 8 days, and the humidity drops to 67%. For more detailed insights, check out Tsushima weather in February.
August and March present distinctly contrasting weather conditions. In August, temperatures soar with a minimum of 23°C (73°F) and average around 27°C (81°F), peaking at 31°C (87°F). This month also sees high humidity levels at 93% and frequent rainfall, with approximately 171 mm (6.7 in) of precipitation over 13 days. Conversely, March offers a much cooler climate, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 17°C (64°F) and an average of just 12°C (54°F). Precipitation in March is lesser, totaling 127 mm (5.0 in) over 10 days, accompanied by a significantly lower humidity of 65%. For more information on the weather in March, visit Tsushima weather in March.
The contrast between April and August weather is notable. In April, temperatures range from a cool 7°C (45°F) to a mild 20°C (69°F), with an average of 15°C (58°F). This month sees less precipitation, with 122 mm (4.8 in) falling over 8 days and humidity levels at a comfortable 75%. In comparison, August experiences much warmer conditions, with minimum temperatures of 23°C (73°F) and maximums reaching 31°C (87°F), averaging 27°C (81°F). The summer month is notably wetter, receiving 171 mm (6.7 in) over 13 days, and high humidity at 93%. For a closer look at April's climate, visit Tsushima weather in April.
In August, the weather is significantly warmer and more humid compared to May, with average temperatures reaching 27°C (81°F) and highs of 31°C (87°F), while May sees much cooler averages of 18°C (65°F) and highs of only 22°C (72°F). Additionally, August experiences more frequent rainfall, with precipitation occurring on 13 days and totaling 171 mm (6.7 in), whereas May receives 116 mm (4.6 in) of rain over just 8 days. The humidity in August is notably higher at 93%, compared to May's 83%, making the summer month feel warmer and more oppressive. For a closer look at what to expect, you can check out Tsushima weather in May.
In comparing the weather between August and June, August is notably warmer, with average temperatures ranging from a minimum of 23°C (73°F) to a maximum of 31°C (87°F), while June sees cooler averages from 17°C (64°F) to 25°C (77°F). Additionally, August experiences a higher level of humidity at 93%, compared to June’s 87%, making it feel more oppressive. Precipitation is also more frequent in August, with 171 mm (6.7 in) spread over 13 days, whereas June has slightly less rain at 159 mm (6.3 in) over just 9 days. For those interested in a deeper dive into the June weather specifics, you can check Tsushima weather in June.
In comparing the weather of August and July, we see that August tends to be slightly warmer, with average temperatures ranging from a minimum of 23°C (73°F) to a maximum of 31°C (87°F), while July has lower averages, with a minimum of 21°C (69°F) and a maximum of 30°C (86°F). August also experiences less precipitation, totaling 171 mm (6.7 in) over 13 days, compared to July's 273 mm (10.8 in) over 14 days. Humidity levels remain high in both months, with August at 93% and July at 95%. For more detailed information, you can check Tsushima weather in July.
In comparing the weather of August and September, August displays warmer temperatures, with a minimum of 23°C (73°F) and an average of 27°C (81°F), reaching a maximum of 31°C (87°F). The month is quite humid, featuring an average humidity of 93%, along with significant precipitation of 171 mm (6.7 in) over 13 days. In contrast, September sees a decline in temperature, with minimums around 19°C (67°F) and an average of 24°C (76°F), peaking at 29°C (85°F). However, September experiences increased rainfall, totaling 296 mm (11.7 in) over 14 days, accompanied by a lower humidity rate of 80%. For more detailed insights, you can visit Tsushima weather in September.
In August, the weather is characterized by warm temperatures with a minimum of 23°C (73°F) and an average high of 31°C (87°F), making it quite humid with an average humidity of 93%. This month also sees considerable rainfall, totaling 171 mm (6.7 in) over 13 days. In contrast, October brings a noticeable drop in temperatures, with a minimum of 12°C (55°F) and an average of 20°C (69°F). Precipitation also decreases to 118 mm (4.7 in) over just 9 days, and humidity levels drop to a more comfortable 77%. For a detailed look at the weather trends during this month, you can visit Tsushima weather in October.
August and November present strikingly different weather patterns. In August, temperatures soar, with a minimum of 23°C (73°F) and an average high of 31°C (87°F), accompanied by high humidity levels of 93%. This month also sees significant rainfall, averaging 171 mm (6.7 in) over 13 days, contributing to a tropical feel. In contrast, November offers a much cooler climate, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 22°C (72°F) and a more comfortable average of 16°C (60°F). Precipitation drops significantly to 44 mm (1.7 in) across just 8 days, along with lower humidity at 75%. For more detailed insights about the weather in November, you can check Tsushima weather in November.
August and December present stark contrasts in weather characteristics. In August, temperatures range from a minimum of 23°C (73°F) to a maximum of 31°C (87°F), with an average of 27°C (81°F). This month also experiences high humidity at 93% and significant precipitation totaling 171 mm (6.7 in) over 13 days. In contrast, December offers a much cooler climate, with temperatures dipping to a minimum of 0°C (33°F) and peaking at 20°C (69°F), averaging just 10°C (50°F). Precipitation in December is lower, at 60 mm (2.4 in) spread over only 7 days, and the humidity decreases to 73%. For a comprehensive look at the December weather, you can explore Tsushima weather in December.
In August, Tsushima experiences a distinct shift in weather, characterized by higher temperatures and humidity levels that can make the air feel quite muggy. With an average temperature reaching around 27°C (81°F), this month stands out as one of the warmest of the year. Additionally, precipitation is notably frequent, with about 13 days of rain contributing to a total rainfall of 171 mm (6.7 in). Such conditions create a lush environment, setting August apart from the drier months that precede and follow it. For a detailed look at what to expect throughout the year, visit Tsushima Climate.