Last updated: August 21, 2025
August in Hakone, Japan presents a warm and humid climate, featuring a maximum temperature soaring up to 35°C (95°F) and an average of 26°C (79°F). While basking in the summer warmth, visitors should be prepared for frequent rain, with a substantial 198 mm (7.8 inches) of precipitation over approximately 18 days throughout the month. Humidity levels are notably high, averaging around 90%, creating a lush environment that enhances Hakone's stunning natural beauty. Embrace the vibrant atmosphere and prepare for both sunshine and refreshing showers as you explore this scenic region.
In Hakone, Japan, August brings a warm and vibrant climate, with temperatures ranging from a minimum of 17°C (63°F) to a sizzling maximum of 35°C (95°F). The average temperature settles at a balmy 26°C (79°F), making it the peak of summer and an inviting time for outdoor enthusiasts. This month marks a noticeable shift, as temperatures rise sharply from the cooler months earlier in the year; for instance, July's max temperature reaches 34°C (93°F), which set the stage for August's warmth. As the warmest month, August invites visitors to embrace the beauty of Hakone’s lush landscapes, offering an ideal backdrop for hiking, sightseeing, and soaking in its famed hot springs, all while enjoying the long, sun-filled days.
In August, Hakone experiences significant rainfall, with 198 mm (7.8 in) of precipitation over 18 days. This month continues the trend of high precipitation that began in July, where the area received an impressive 321 mm (12.6 in). As summer reaches its peak, the intensity of rainfall often contributes to lush green landscapes and vibrant flora, setting the stage for the region's natural beauty. Interestingly, while August remains one of the wetter months, it slightly tapers off before the more intense downpours of September, which averages 242 mm (9.5 in) over 21 days. This pattern underscores a dynamic transition as August balances the tail end of the rainy season with a hint of what’s to come in the following month.
In August, Hakone experiences a significant rise in humidity levels, reaching 90%, following the peak of 93% in July. This month sits comfortably within the high humidity range that characterizes the summer season, reflecting a trend of increasing moisture that begins in late spring. Notably, the humidity in August is slightly lower than its July counterpart but still substantial enough to create a warm and humid atmosphere, typical of summer in this picturesque region. As the year progresses, humidity levels gradually taper off, transitioning towards the cooler and drier months of autumn. Overall, the summer months in Hakone are marked by lush greenery and vibrant landscapes, fueled by the high humidity.
In August, Hakone experiences a UV Index of 11, indicating an extreme exposure level that demands caution for sun enthusiasts. This trend follows a pattern of consistently high UV radiation from May through July, where similar extreme levels were recorded, resulting in a minimal burn time of just 10 minutes. As summer peaks, it’s crucial to take protective measures if you're spending time outdoors, continuing the practice from the previous months. This sharp increase and maintaining high levels throughout these summer months contrast with the more moderate UV levels observed in the late fall and winter. For a detailed understanding of UV intensity throughout the year, visit Hakone UV Index.
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August in Hakone, Japan, shines as the peak of summer with an impressive 285 hours of sunshine, fostering a vibrant atmosphere perfect for outdoor enthusiasts. This month stands out as the sunniest, following a consistent upward trend from the previous months, which saw longer days and increasing light, culminating in August's brilliance. After a gentle rise through the spring, particularly notable in May and June, the sunshine hours begin to taper off as autumn approaches, yet the warmth of summer lingers through September, still boasting 236 hours of sun. This pattern not only highlights the region's lush landscapes during these sunny months but also beckons visitors to experience Hakone's natural beauty before the season shifts.
August in Hakone, Japan, sees a modest 28% chance of sunny weather, making it one of the statistically less bright months of the year. This figure represents a slight uptick from the previous months of July and June, which boast chances of 26% and 18%, respectively. As summer peaks, the area remains cloaked in humid conditions, often overshadowing the sun. Notably, the highest likelihood of sunshine appears earlier in the year, with January and December enjoying features of 57% and 67%, respectively. As we explore the weather patterns, it becomes clear that while August offers a glimmer of hope for sun seekers, visitors should remain prepared for the typical haziness that characterizes the late summer months in Hakone.
In Hakone, Japan, the daylight duration experiences a captivating ebb and flow throughout the year. August, with its 13 hours of daylight, marks a slight decline from the consistent 14 hours seen in the preceding summer months of June and July. This gradual decrease signals the onset of autumn, yet it remains generous enough to allow for breathtaking views and outdoor adventures. As days transition into September, daylight continues to taper off, illustrating a rhythm of nature that invites reflection. The extended brightness of late spring and summer truly contrasts with the shorter days of winter, providing a fulcrum of balance in Hakone's seasonal tapestry.
In August, the wind in Hakone, Japan, maintains a gentle average speed of 1.9 m/s (4 mph), consistent with the earlier months of the year. This slight breeze adds a refreshing touch to the warm summer days, providing a perfect backdrop for leisurely strolls and outdoor activities. Interestingly, the wind picks up slightly in late winter and early spring, peaking at 2.1 m/s (5 mph) in both February and May, hinting at seasonal shifts that invigorate the landscape. As the summer progresses, however, wind speeds trend downwards, reaching a low of 1.4 m/s (3 mph) in July before returning to the stable 1.9 m/s in August. Overall, the wind patterns reflect a calm yet pleasant atmosphere, making Hakone an ideal destination for those seeking serenity amidst nature's beauty.
Weather in Hakone varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Hakone, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in August and January, the contrast is striking. August typically brings warm temperatures with a minimum of 17°C (63°F), averaging 26°C (79°F), and peaking at a sweltering 35°C (95°F). This month is also characterized by high humidity levels of 90% and significant rainfall of 198 mm (7.8 in) over 18 days. In contrast, January experiences much colder conditions, with temperatures dipping to a minimum of -7°C (19°F), an average of 4°C (39°F), and a maximum of 17°C (63°F). The winter month sees considerably less precipitation at 69 mm (2.7 in) over just 8 days, along with a lower humidity level of 76%. For more detailed insights into January weather, check out Hakone weather in January.
August and February showcase striking contrasts in weather. In August, temperatures soar, reaching a minimum of 17°C (63°F) and peaking at 35°C (95°F), with an average of 26°C (79°F). This month also experiences high humidity at 90% and considerable rainfall, with precipitation of 198 mm (7.8 in) spread over 18 days. In contrast, February presents a chilly atmosphere where temperatures drop significantly, with a minimum of -6°C (21°F) and a maximum of 20°C (67°F), averaging at just 5°C (41°F). February sees much less precipitation at 83 mm (3.3 in) over 11 days and a lower humidity level of 74%. For more details, check out Hakone weather in February.
In comparing the weather between August and March, there is a stark contrast in temperatures and humidity levels. August typically experiences much warmer conditions, with average temperatures around 26°C (79°F) and maximums reaching up to 35°C (95°F), accompanied by high humidity at 90%. In contrast, March offers cooler temperatures, with an average of 8°C (47°F) and highs only reaching 22°C (72°F), making it feel significantly chillier, especially at the minimum temperature of -6°C (22°F). Precipitation levels are relatively similar, with August receiving 198 mm (7.8 in) over 18 days and March slightly higher at 202 mm (7.9 in) over 15 days. For more detailed insights into March weather, you can visit Hakone weather in March.
When comparing the weather in August and April, it's clear that August is significantly warmer and more humid. The average temperature in August reaches around 26°C (79°F), with maximum highs soaring up to 35°C (95°F), while April's average temperature is a cooler 12°C (55°F) and peaks at 25°C (78°F). Additionally, August experiences higher precipitation, with 198 mm (7.8 in) falling over 18 days, compared to April's 173 mm (6.8 in) across 14 days. The humidity level also spikes in August at 90%, versus a more comfortable 74% in April. For a more detailed look at April weather, you can check Hakone weather in April.
When comparing the weather in August to that in May, notable differences emerge. August boasts significantly warmer temperatures, with minimums of 17°C (63°F) and maximums reaching up to 35°C (95°F), compared to May's cooler range of 5°C (41°F) to 30°C (86°F). Additionally, August experiences higher humidity levels at 90%, while May's humidity is slightly lower at 81%. Precipitation is also a factor; August sees 198 mm (7.8 in) of rain over 18 days, whereas May has 180 mm (7.1 in) over just 14 days. For more detailed insights on May conditions, you can check Hakone weather in May.
In comparing the weather between June and August, August tends to be warmer, with average temperatures around 26°C (79°F), compared to June's average of 20°C (69°F). However, June experiences slightly higher precipitation, totaling 234 mm (9.2 in), compared to August's 198 mm (7.8 in), despite both months having 18 days of rain. Humidity levels are also quite high in both months, with August at 90% and June at 88%. If you're considering visiting, you can find more detailed information about June weather at this link: Hakone weather in June.
August weather is characterized by slightly warmer overall temperatures compared to July, with an average of 26°C (79°F) versus July's 24°C (76°F). Both months experience similar minimum temperatures, but August peaks at a higher maximum of 35°C (95°F) compared to July's 34°C (93°F). Precipitation in August is lower, totaling 198 mm (7.8 in) over 18 days, while July sees significantly more rain at 321 mm (12.6 in) across 20 days. Humidity remains high in both months, with August at 90% and July at 93%. For more specific details on July's weather, you can refer to this link: Hakone weather in July.
August is typically warmer than September, with average temperatures reaching 26°C (79°F) compared to September's average of 22°C (72°F). While August enjoys maximum temperatures of up to 35°C (95°F), September's peak is slightly lower at 33°C (91°F). However, September experiences higher precipitation, with a total of 242 mm (9.5 in) spread over 21 days, compared to August's 198 mm (7.8 in) over 18 days. Humidity remains high in both months, with August at 90% and September at 86%. For a more detailed look at September weather, visit Hakone weather in September.
August and October present contrasting weather conditions. In August, temperatures soar with a minimum of 17°C (63°F) and a maximum reaching 35°C (95°F), making it the warmest month. The month experiences significant humidity, averaging 90%, alongside substantial rainfall totaling 198 mm (7.8 in) over 18 days. In contrast, October sees a notable drop in temperatures, with a minimum of 7°C (45°F) and an average of 17°C (62°F), though it can still reach a warm maximum of 30°C (87°F). This month is characterized by even heavier rainfall, accumulating 360 mm (14.2 in) over 19 days, but with slightly lower humidity at 83%. For a specific look at conditions in October, you can refer to Hakone weather in October.
August and November present stark contrasts in weather patterns. In August, temperatures soar with a minimum of 17°C (63°F) and an average of 26°C (79°F), reaching up to a sweltering maximum of 35°C (95°F). This month also experiences high humidity at 90% and substantial rainfall, totaling 198 mm (7.8 in) across 18 days. In comparison, November brings a notable drop in temperatures, with a minimum of 1°C (34°F) and an average of 12°C (53°F), peaking at 22°C (71°F). Precipitation decreases to 102 mm (4.0 in) over 13 days, accompanied by lower humidity levels at 80%. For a closer look at November's specific weather conditions, you can visit Hakone weather in November.
In August, the weather is warm and humid, with average temperatures around 26°C (79°F) and maximums reaching up to 35°C (95°F). This month experiences significant rainfall, with about 198 mm (7.8 in) spread over 18 days, creating a steamy atmosphere with humidity levels peaking at 90%. In contrast, December features much cooler temperatures, with an average of 6°C (44°F) and maximums of 21°C (69°F). Precipitation decreases to 79 mm (3.1 in) over 11 days, and humidity drops to 78%, resulting in a drier and brisker climate. For more detailed information, check Hakone weather in December.
August in Hakone presents a distinct contrast to other months, characterized by warmer temperatures and a higher humidity level that can feel quite oppressive at times. With a significant amount of precipitation spread over nearly two-thirds of the month, visitors might encounter frequent rain showers. This combination creates a lush, vibrant landscape, but it's essential to be prepared for the moisture and warmth. Overall, August showcases Hakone’s summer charm, blending heat with the refreshing scent of rain-soaked nature. For more insights into Hakone's weather patterns throughout the year, check out Hakone Climate.