Last updated: August 21, 2025
Shirahama in August boasts a maximum temperature of 31°C (89°F), with an average hovering around 27°C (81°F), while lows can dip to a comfortable 22°C (73°F). Although warm days invite beachgoers, the region experiences significant precipitation, accumulating approximately 227 mm (8.9 in) over about 14 days throughout the month. High humidity levels at 86% can add a tropical feel to the atmosphere, making it essential for visitors to pack light, breathable clothing and be prepared for sudden rains. Whether you’re looking to relax by the sea or explore local attractions, August offers a blend of warmth and refreshing showers characteristic of Shirahama's summer charm.
In August, Shirahama, Japan enjoys the pinnacle of summer warmth, with temperatures gracefully balancing between a minimum of 22°C (73°F) and a maximum of 31°C (89°F). The average temperature hovers around 27°C (81°F), inviting beachgoers and outdoor enthusiasts to revel in the sun-drenched days and balmy nights. As the summer progresses, these warmer temperatures reflect a clear upward trend from the cooler months, creating a vibrant atmosphere perfect for enjoying the region's renowned seaside attractions. The pleasant warmth of August makes it an ideal time to experience the beauty of Shirahama, bringing both local and international visitors to bask in the sun and immerse themselves in the rich cultural offerings of this coastal gem.
In August, Shirahama experiences a significant drop in precipitation compared to the torrential rains of July, with a total of 227 mm (8.9 in) spread over 14 days of rainfall. This notable decrease marks a turning point in the summer monsoon pattern, as the intensity of precipitation wanes after peak levels in July, which recorded an impressive 353 mm (13.9 in). While August still sees substantial rain, it serves as a reminder of the transitioning climate leading into the wetter autumn months, especially with September climbing back up to 239 mm (9.4 in). Overall, August represents a blend of summer's lingering showers and the impending shift towards more consistent rainfall, as the region prepares for the seasonal changes ahead.
In August, Shirahama, Japan, experiences a notable humidity level of 86%, making it one of the most humid months of the year, though slightly less oppressive than the peak in July at 92%. This summer season typically sees a rise in humidity from the milder months of early spring, where levels hover around 69%. Following a steady increase from May's 82% to June's 87%, August maintains a high level of moisture, contributing to the region's lush landscapes and vibrant coastal atmosphere. As the year transitions into the cooler fall months, humidity levels gradually decline, dropping to 82% in September and continuing to decrease, ultimately creating a refreshing relief from the summer heat.
In August, Shirahama, Japan, experiences an extreme UV Index of 11, indicating a significant risk for harm from unprotected sun exposure. Alongside July, this peak represents the height of summer, where the burn time is a swift 10 minutes. This trend of high UV levels begins in March and remains elevated through the summer months, only tapering off slightly in September. Interestingly, the UV Index sharply escalates from January’s moderate level of 4 to the extreme levels observed in late spring and summer, prompting residents and visitors alike to take proactive measures against sun exposure. For more details on UV levels throughout the year, visit Shirahama UV Index.
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August shines brightly in Shirahama, Japan, boasting an impressive 323 hours of sunshine, making it the sunniest month of the year. This peak follows a steady rise in daylight hours, starting from 188 hours in January and climbing each month, showcasing a beautiful transition toward summer. As the year progresses, each month contributes to this warmth, with only a slight dip in June and September, both of which still offer ample sunshine. In contrast, the cold winter months linger around 231 to 188 hours, serving as a reminder of the cheerful glow that August brings. This sunlit crescendo not only enhances the natural beauty of Shirahama but also invites visitors to bask in the vibrant summer atmosphere.
In August, Shirahama, Japan experiences a modest 31% chance of sunny weather, which is relatively low compared to the brighter months of the year. As summer peaks, the likelihood of sunshine doesn’t significantly improve from the previous months; in fact, it slightly dips from the 30% chance noted in July. This trend of lower sunshine probability persists through the summer months of June and July, both registering below 35%. However, as the year progresses into October and November, the chance of sunny days rises notably, reaching 63% and 55%, respectively. This pattern suggests that while August may offer a warm climate, those looking for sunny days might benefit from waiting until the autumn months for clearer skies in Shirahama.
In Shirahama, Japan, the rhythm of daylight plays a captivating role throughout the year. As summer peaks, August offers about 13 hours of daylight, a slight dip from July's 14 hours but still embracing the warmth of longer days. This month marks a vibrant transition as the days begin to shorten, gradually leading into the autumn months where daylight dwindles to 12 hours in September and further down to 11 in October. The trend showcases a steady progression from the abundant sunlight of late spring and early summer to the more muted daylight of the fall and winter months, highlighting the natural ebb and flow of light that characterizes this beautiful coastal region.
In August, Shirahama experiences a refreshing breather as the average wind speed rises to 5.1 m/s (11 mph), a subtle increase from the calmer summer months of June and July. This gentle breeze not only enhances the coastal atmosphere, making it ideal for beachgoers, but also breaks the stifling heat, inviting locals and tourists alike to take leisurely strolls along the shore. As summer transitions toward fall, the winds gradually pick up again, hinting at a pattern where late summer and early autumn bring more invigorating gusts, compared to the lighter air of the preceding months. Overall, August’s winds serve as a precursor to the brisker breezes of fall, perfectly blending the warmth of summer with an invigorating touch.
Weather in Shirahama varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Shirahama, focusing on differences in temperature, rainfall, humidity, and UV levels.
In August, the weather is markedly warmer and more humid compared to January. With average temperatures hovering around 27°C (81°F) and maximums reaching up to 31°C (89°F), August experiences a cozy warmth accompanied by high humidity at 86%. Additionally, it witnesses significant rainfall, with 227 mm (8.9 in) of precipitation over 14 days. In contrast, January brings considerably cooler temperatures, averaging only 8°C (47°F) and peaking at 18°C (64°F). Rainfall is much lighter, with 77 mm (3.0 in) over 9 days, and humidity is lower at 72%. For a closer look at January weather patterns, you can visit Shirahama weather in January.
The weather in August is markedly warmer and more humid compared to February. In August, temperatures range from a minimum of 22°C (73°F) to a maximum of 31°C (89°F), with an average of 27°C (81°F) and high humidity at 86%. Conversely, February experiences much cooler temperatures, with a range from 1°C (35°F) to 18°C (65°F) and an average of 8°C (47°F). Additionally, February sees significantly less precipitation (98 mm or 3.9 in) over fewer days (10 days) compared to August's 227 mm (8.9 in) over 14 days. For more detailed information, check out Shirahama weather in February.
The weather in August is notably warmer and more humid than in March. In August, temperatures typically range from a minimum of 22°C (73°F) to a maximum of 31°C (89°F), with an average of 27°C (81°F). This period also experiences high humidity levels of 86% and significant rainfall, averaging 227 mm (8.9 in) over about 14 days. In contrast, March presents a much cooler climate, with temperatures ranging from a chilly minimum of 4°C (39°F) to a comfortable maximum of 19°C (66°F) and an average of 12°C (53°F). March also sees lower precipitation amounts at 149 mm (5.9 in) over 11 days, accompanied by a more moderate humidity level of 69%. For more details on Shirahama's climate in March, you can visit Shirahama weather in March.
When comparing the weather between August and April, significant differences become apparent. August experiences much warmer temperatures, with minimums around 22°C (73°F) and maximums reaching up to 31°C (89°F), averaging 27°C (81°F). In contrast, April is considerably cooler, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 21°C (70°F), and an average of 15°C (59°F). Additionally, August sees higher precipitation, totaling 227 mm (8.9 in) over 14 days, compared to April's 148 mm (5.8 in) over 10 days, while humidity levels are also higher in August at 86% compared to April's 75%. For a more detailed comparison of April weather in Shirahama, you can check Shirahama weather in April.
August and May exhibit distinct weather patterns, with August being notably warmer and more humid. In August, temperatures range from a minimum of 22°C (73°F) to a maximum of 31°C (89°F), with an average of 27°C (81°F). The month sees significant rainfall, with about 227 mm (8.9 in) of precipitation spread over 14 days and an average humidity of 86%. In contrast, May offers a milder climate, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 25°C (77°F), and an average of 19°C (66°F). While May has less precipitation at 203 mm (8.0 in) across 10 days, it still maintains a comfortable humidity level of 82%. For more detailed insights into the weather in May, you can visit Shirahama weather in May.
When comparing the weather in August and June, August tends to be significantly warmer, with average temperatures around 27°C (81°F) compared to June's 22°C (72°F). The maximum temperatures peak at 31°C (89°F) in August, while June reaches a maximum of 26°C (79°F). However, both months experience a similar number of rainy days, with precipitation levels close at 227 mm (8.9 in) for August and 237 mm (9.3 in) for June. Humidity remains relatively high in both months, with August showing slightly lower humidity at 86%, compared to June's 87%. For more detailed information about June’s weather specifically, you can visit Shirahama weather in June.
In comparing the weather between July and August, we observe that August has a slightly higher average temperature, with a minimum of 22°C (73°F) and a maximum of 31°C (89°F), compared to July's minimum of 21°C (71°F) and maximum of 31°C (88°F). However, July experiences significantly more precipitation, receiving 353 mm (13.9 in) over 18 days, whereas August sees a decrease to 227 mm (8.9 in) over 14 days. Humidity levels are also marginally lower in August at 86%, compared to July's higher humidity of 92%. For more details about the July climate, you can check Shirahama weather in July.
August and September exhibit a gradual transition in weather patterns. In August, the temperatures are slightly warmer, with an average of 27°C (81°F) and a maximum of 31°C (89°F), while September cools down to an average of 25°C (77°F) and a maximum of 30°C (86°F). Both months experience significant rainfall, but September has slightly higher precipitation at 239 mm (9.4 in) over 16 days compared to August's 227 mm (8.9 in) over 14 days. Humidity levels are also high in both months, with August at 86% and September slightly lower at 82%. For more detailed information on weather trends, you can visit Shirahama weather in September.
In August, the weather is characterized by warm temperatures, with a minimum of 22°C (73°F) and an average of 27°C (81°F), reaching up to a maximum of 31°C (89°F). The month also experiences significant rainfall, totaling 227 mm (8.9 in) over 14 days, contributing to a high humidity level of 86%. In contrast, October sees a notable drop in temperature, with minimums around 13°C (56°F) and an average of 21°C (69°F), peaking at 27°C (81°F). Despite the cooler conditions, October experiences even higher precipitation, totaling 307 mm (12.1 in) over 13 days, although the humidity decreases to 79%. For a detailed look at October weather in Shirahama, visit Shirahama weather in October.
August and November present contrasting weather patterns, with August being significantly warmer and more humid than November. In August, temperatures range from a minimum of 22°C (73°F) to a maximum of 31°C (89°F), accompanied by high humidity levels of 86% and substantial rainfall of 227 mm (8.9 in) over 14 days. In stark contrast, November experiences cooler temperatures, averaging between 8°C (47°F) and 23°C (73°F), with a much lower total precipitation of 72 mm (2.8 in) spread over just 7 days and humidity at 75%. For a detailed look at Shirahama's November weather, you can check Shirahama weather in November.
In August, the weather is characterized by warm temperatures, with a minimum of 22°C (73°F), an average of 27°C (81°F), and a maximum reaching up to 31°C (89°F). This month sees considerable rainfall, with precipitation totaling 227 mm (8.9 in) across 14 days and high humidity levels at 86%. In contrast, December experiences much cooler conditions, with temperatures ranging from a minimum of 3°C (38°F) to an average of 11°C (52°F) and a maximum of 20°C (69°F). Precipitation is significantly lower, at 85 mm (3.4 in) over 9 days, and the humidity drops to 74%. For a closer look at December weather specifics, you can refer to Shirahama weather in December.
August in Shirahama is characterized by warm temperatures and higher humidity, setting it apart from other months. With maximum highs reaching an inviting 31°C (89°F) and an average of 27°C (81°F), the heat invites both locals and tourists to enjoy the beach and outdoor activities. However, this warmth comes with a notable increase in precipitation, as the month experiences about 14 rainy days and a total of 227 mm (8.9 in) of rainfall, making it one of the wetter months of the year. The elevated humidity levels can make the air feel particularly sticky, heightening the need for occasional relief from sudden showers. For more detailed insights on weather patterns throughout the year, explore Shirahama Climate.