Last updated: August 21, 2025
May in Hakone, Japan brings a delightful blend of warm temperatures and refreshing rain. Expect daytime highs reaching up to 30°C (86°F), while the average temperature lingers around a comfortable 17°C (63°F). The evenings cool down to a minimum of 5°C (41°F), providing a pleasant contrast to the daytime warmth. With approximately 180 mm (7.1 in) of rainfall over 14 days, nature flourishes, making this period ideal for exploring the lush landscapes. The humidity levels hover around 81%, adding to the vibrant atmosphere that May in Hakone offers.
In May, Hakone embraces the beauty of spring with delightful temperatures that mark a notable shift towards warmth. With minimal temperatures around 5°C (41°F) and an average climate settling at 17°C (63°F), the region enjoys a comfortable atmosphere perfect for exploring its picturesque landscapes. ***Maximum temperatures can soar to a pleasant 30°C (86°F), inviting visitors to bask in the sun or enjoy the lush greenery. This month contrasts sharply with the chill of earlier winter months, highlighting Hakone’s transition into a vibrant, blooming season. As days grow longer and warmer, nature awakens, making May an ideal time for outdoor adventures and experiencing the natural beauty of this stunning destination.
In May, Hakone experiences a significant 180 mm (7.1 in) of precipitation over approximately 14 days, marking the month as a time of lush greenery and vibrant landscapes. This amount of rainfall, while slightly less than June’s peak, continues the upward trend from the preceding months, with April's 173 mm acting as a precursor to May's wet yet invigorating atmosphere. As temperatures rise, the region transitions gracefully into spring, but the persistent rain sets a dynamic stage for the upcoming summer months, leading to even greater precipitation totals. The consistent rainfall throughout the spring not only nourishes the flora of Hakone but also captivates visitors with its serene, misty charm.
In May, Hakone, Japan, experiences a notable rise in humidity, reaching 81%—the highest level recorded so far this year. This increase is part of a consistent upward trend that begins in April and culminates in the sweltering summer months. Following May, June and July see humidity levels soar to 88% and 93%, respectively, creating a distinctly muggy atmosphere. This pattern highlights the shift towards more humid conditions as spring transitions into summer, inviting visitors to appreciate the lush landscapes of Hakone while bracing for the increasing warmth and moisture as the season progresses.
In May, Hakone, Japan experiences a significant rise in UV exposure, with the UV Index soaring to an extreme level of 11. This reflects a continued upward trend from April's already high index of 10. With a burn time of just 10 minutes, residents and visitors are urged to take protective measures seriously during this month. The transition into summer is marked by a pattern of heightened UV exposure, as the UV Index remains at this extreme level heading into June and July. As such, vigilance is key for outdoor activities to prevent sunburn and long-term skin damage. For more details, visit Hakone UV Index.
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May brings a remarkable 282 hours of sunshine to Hakone, Japan, illuminating the stunning landscapes that this region is renowned for. As spring reaches its peak, sunlight gradually increases from 189 hours in January to a vibrant 260 hours by April, setting the stage for May's abundance. Following the floral bloom, sunshine continues through early summer, with June dipping slightly to 253 hours, while July and August experience a surge again, reaching their peak at 285 hours. This trend of increasing sunlight not only enhances the beauty of the cherry blossoms and lush greenery but also invites visitors to immerse themselves in outdoor adventures, making May a particularly enchanting time to experience Hakone's natural splendor.
In Hakone, Japan, the likelihood of sunny weather takes a noticeable dip as we transition into May, with only a 21% chance of encountering sunshine. This decline follows a trend from the previous months, where sunny days are more prevalent in January (57%) and February (65%), gradually diminishing through March (35%) and April (42%). As spring gives way to early summer, the chances continue to drop, reaching the lowest point in June at 18%. Overall, while May may offer beautiful scenery and vibrant greenery, those hoping for sunny skies might want to temper their expectations.
In Hakone, Japan, the progression of daylight duration throughout the year reveals a captivating rhythm of nature. Starting with 10 hours of daylight in both January and February, the days gradually lengthen as spring approaches, culminating in 14 hours by May. This surge in daylight signifies the arrival of warmer weather and vibrant blooms, making May an ideal time to explore the stunning landscapes of Hakone. As summer unfolds, the daylight remains consistent at 14 hours through June and July, before gradually tapering off in the fall. By September, daylight decreases to 12 hours, leading to 11 hours in October, and finally returning to 10 hours by November. This cyclical shift not only highlights the changing seasons but also invites visitors to experience the beauty of Hakone during its sunlit peak in May.
In May, Hakone experiences a gentle breeze with an average wind speed of 2.1 m/s (5 mph), providing a delightful prelude to the warmer months ahead. As spring takes hold, the wind picks up slightly from April's calm conditions, creating an inviting atmosphere for outdoor adventures. Interestingly, this uptick in May contrasts with the lower wind speeds observed during the summer months, particularly in July and August, where the averages drop to 1.4 m/s (3 mph) and 1.9 m/s (4 mph), respectively. This trend highlights May as an ideal time for enjoying nature's beauty, where the mild winds enhance the serene landscapes without overwhelming visitors, making it a perfect moment to explore the picturesque surroundings of Hakone.
Weather in Hakone varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Hakone, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present starkly contrasting weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to a warm maximum of 30°C (86°F), with an average temperature of 17°C (63°F). This month also sees significant rainfall, with 180 mm (7.1 in) of precipitation over approximately 14 days, coupled with high humidity levels at 81%. In contrast, January is much colder, with temperatures dipping to a minimum of -7°C (19°F) and reaching a maximum of 17°C (63°F), averaging just 4°C (39°F). It experiences less rainfall, totaling 69 mm (2.7 in) over about 8 days and a slightly lower humidity of 76%. For those interested in a more detailed look, check out Hakone weather in January.
May and February present stark contrasts in weather conditions. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average of 17°C (63°F), creating a warmer and more comfortable climate. In contrast, February experiences much cooler temperatures, with a low of -6°C (21°F) and a peak of 20°C (67°F), averaging only 5°C (41°F). Additionally, May sees significantly higher precipitation, totaling 180 mm (7.1 in) over 14 days, compared to February's 83 mm (3.3 in) across 11 days. The humidity is also higher in May, at 81%, while February maintains a lower humidity level of 74%. For more detailed insights on February weather, visit Hakone weather in February.
In comparing the weather of May and March, it's evident that May presents a milder and more pleasant climate. With average temperatures ranging from a minimum of 5°C to a maximum of 30°C, May allows for comfortable outdoor activities, in stark contrast to March, where temperatures can dip as low as -6°C. Although both months experience significant rainfall, May's precipitation of 180 mm over 14 days is slightly less than March's 202 mm over 15 days. Humidity levels also reflect this shift, with May averaging 81% compared to March's 70%. For more details about March weather, you can visit Hakone weather in March.
In comparing the weather of May and April, we see a notable increase in temperature and humidity levels. May boasts a minimum temperature of 5°C (41°F) and an average of 17°C (63°F), peaking at a warm 30°C (86°F). This is in contrast to April, which experiences cooler conditions with a minimum of -1°C (31°F) and an average of 12°C (55°F), reaching a maximum of 25°C (78°F). Both months receive a similar amount of precipitation, with May at 180 mm (7.1 in) and April at 173 mm (6.8 in), but May is characterized by a slightly higher humidity of 81% compared to April's 74%. For a more detailed look at the weather patterns in April, you can visit Hakone weather in April.
May and June exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to an average of 17°C (63°F) and a maximum of 30°C (86°F), paired with 180 mm (7.1 in) of precipitation over 14 days, and humidity levels at 81%. In contrast, June warms up slightly, with temperatures starting at a minimum of 12°C (55°F) and averaging 20°C (69°F), while still reaching a high of 30°C (86°F). However, June sees increased precipitation, totaling 234 mm (9.2 in) over 18 days, and higher humidity at 88%. For more details on June weather, visit Hakone weather in June.
May and July present distinctly different weather patterns. In May, temperatures range from a cool 5°C (41°F) at night to a comfortable average of 17°C (63°F) during the day, peaking at 30°C (86°F). The month sees a fair amount of rainfall, with 180 mm (7.1 in) observed over approximately 14 days, and humidity sits at 81%. In contrast, July brings warmer conditions, with nighttime lows of 17°C (62°F) and an average temperature of 24°C (76°F), climbing to a maximum of 34°C (93°F). The precipitation is more pronounced in July, totaling 321 mm (12.6 in) and occurring on about 20 days, while humidity increases to 93%. For more detailed insights into July's weather, you can visit Hakone weather in July.
In comparing the weather between May and August, it’s evident that August tends to be warmer and more humid. May experiences a temperature range from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average of 17°C (63°F). In contrast, August sees temperatures ranging from a milder minimum of 17°C (63°F) to a scorching maximum of 35°C (95°F), averaging 26°C (79°F). Both months receive significant rainfall, with May recording 180 mm (7.1 in) over 14 days and August totaling 198 mm (7.8 in) across 18 days. Additionally, humidity levels rise in August to 90%, compared to 81% in May, contributing to a noticeably muggier atmosphere. For more details, check out Hakone weather in August.
May and September present contrasting weather patterns. In May, temperatures range from a cooler minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average of 17°C (63°F). The month experiences significant rainfall, totaling 180 mm (7.1 in) over 14 days, and humidity levels sit at 81%. In contrast, September has a milder minimum temperature of 13°C (56°F), peaking at a warmer 33°C (91°F) with an average of 22°C (72°F). Rainfall is heavier in September, accumulating to 242 mm (9.5 in) over 21 days, with slightly higher humidity at 86%. For more insights, you can check Hakone weather in September.
May and October exhibit some similarities in temperature but differ significantly in precipitation patterns and conditions. In both months, the average temperature hovers around 17°C (63°F), with maximums reaching close to 30°C (86°F) in May and 30°C (87°F) in October. However, October experiences notably higher precipitation, with 360 mm (14.2 in) spread over 19 days compared to May's 180 mm (7.1 in) over 14 days. This increase leads to a slightly higher humidity level in October, which sits at 83%, compared to 81% in May. For more specific details on October weather in Hakone, check out Hakone weather in October.
May and November present quite distinct weather patterns. In May, temperatures range from a mild 5°C (41°F) to a warm 30°C (86°F), with an average of 17°C (63°F). The month experiences higher precipitation at 180 mm (7.1 in) over 14 days and maintains a humidity level of 81%. In contrast, November sees cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 22°C (71°F), averaging 12°C (53°F). Precipitation decreases significantly to 102 mm (4.0 in) across 13 days, and humidity remains relatively consistent at 80%. This seasonal transition highlights the shift from the warm and wetter conditions of May to the cooler and drier climate of November. For a detailed overview of November's conditions, check out Hakone weather in November.
In May, the weather tends to be significantly warmer and more humid compared to December. With average temperatures reaching around 17°C (63°F) and maximums of up to 30°C (86°F), May also sees higher precipitation levels at 180 mm (7.1 in) over approximately 14 days. In contrast, December experiences cooler temperatures, with an average of 6°C (44°F) and maximums peaking at 21°C (69°F). The precipitation in December, though lower at 79 mm (3.1 in) over 11 days, comes along with a similar humidity level of 78%. For a closer look at December weather specifics, you can check Hakone weather in December.
As May unfolds in Hakone, the weather offers a delightful shift from the cooler months, presenting warmer temperatures that average around 17°C, peaking at a balmy 30°C. This month not only brings significant humidity levels at 81% but also sees frequent rainfall, with about 14 days of precipitation summing up to 180 mm. While the blooming landscape enchants visitors, it's essential to be prepared for some unpredictable weather. For those planning a visit, understanding the nuances of Hakone's May weather can enhance your experience — learn more about the region's climate at Hakone Climate.