Last updated: August 21, 2025
In May, Hayama, Japan, experiences a pleasant transition into summer, with maximum temperatures reaching 23°C (74°F), while the average hovers around 18°C (65°F). The evenings can be cooler, with minimum temperatures dipping to 12°C (54°F). This month is characterized by significant rainfall, with a total precipitation of 148 mm (5.8 in) accumulating over 11 days. The high humidity level of 81% adds to the lush greenery and vibrant blooms typical of this time of year, making it a picturesque period for nature enthusiasts.
In May, Hayama, Japan, welcomes the warmth of spring, with temperatures reflecting a significant shift towards comfort and brightness. With minimums rising to 12°C (54°F) and averages reaching 18°C (65°F), this month serves as a delightful precursor to summer. The maximum temperature peaks at 23°C (74°F), making it an ideal time for outdoor activities, blooming landscapes, and pleasant seaside strolls. Compared to the cooler months preceding it, May's gentle warmth invites both locals and visitors to bask in the increasing sunlight and enjoy the vibrant scenery that characterizes this coastal gem. As spring transitions into summer, the gradual climb in temperatures reveals a season brimming with life and beauty.
In May, Hayama experiences a notable transition into the more humid months, with precipitation totaling 148 mm (5.8 in) across 11 days. This increase in rainfall, compared to April's 141 mm, suggests a gradual climb toward the peak of the rainy season. The steady rise in precipitation from March through June, with May positioned as a bridge month, highlights a trend of intensifying moisture. As the spring blossoms, the frequent light showers become a hallmark of May, refreshing the landscape and preparing it for the lush greenery of summer, while also setting the stage for even heftier downpours in the following months.
In May, Hayama, Japan, experiences a noticeable rise in humidity, reaching 81%, which marks a significant shift from the milder levels of the preceding months. This uptick not only signals the onset of the warmer season but also sets the stage for the impending summer months ahead. As spring transitions into summer, the humidity continues to climb, peaking in July at a sweltering 93%. The overall trend showcases a gradual increase in moisture levels throughout the year, with a particularly sharp rise from May into June, emphasizing Hayama's lush, vibrant environment during this transitional period.
As the spring transitions into summer, May brings a notable shift in UV intensity in Hayama, Japan. With a staggering UV Index of 11, categorized as extreme, residents and visitors alike should be especially vigilant, as the time it takes to burn drastically reduces to just 10 minutes. This sharp increase follows a progressive rise from March's UV Index of 8 to April's 10, highlighting a trend of intensifying sun exposure as the warmer months approach. As the days grow longer and sunnier, it's essential to prioritize sun safety and awareness. For more information, visit Hayama UV Index.
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May in Hayama, Japan, is a delightful month characterized by abundant sunshine, with 286 hours of bright light illuminating the landscape. This peak in sunlight hours represents a steady upward trend from the previous months, starting at 187 hours in January and gradually increasing as spring unfolded. The transition from April's 269 hours to May's impressive total reflects the burgeoning energy of early summer, making it a perfect time for outdoor activities and enjoying the natural beauty of the region. As the year progresses, the sun remains a significant presence, especially in August, which tops the chart with 297 hours, but May stands out as the season’s radiant highlight. This month not only signifies a vibrant period of blossoming nature but also invites both locals and visitors to bask in the warmth of Hayama’s sunny days.
As the cool breezes of spring transition to the warmth of summer, May in Hayama, Japan, brings a noticeable dip in sunny weather, with only a 24% chance of clear skies. This low likelihood follows the relatively higher probabilities of sunshine in January (53%) and February (64%), before entering a fluctuating pattern through the months of March (41%) and April (49%). Despite this spring resurgence, May stands out as a month when clouds may dominate, leading into a slightly sunnier June (25%). As we explore the yearly climate, it becomes clear that Hayama's late spring offers more uncertainty in sunny days, making it a perfect time for those who appreciate the beauty of an overcast sky.
In Hayama, Japan, the progression of daylight throughout the year highlights an intriguing rhythm of nature. As winter retreats, January and February boast a consistent 10 hours of daylight, gradually giving way to the spring awakening. March brings a gentle increase to 11 hours, and by April, longer days of 13 hours invite more outdoor activities. May reaches its peak with a delightful 14 hours of daylight, a trend that continues into June and July, creating a sense of summer abundance. However, as the year unfolds, the daylight gradually wanes, with August still enjoying 13 hours before transitioning into early autumn with 12 hours in September. This gradual decline continues into the fall and winter months, where daylight dwindles, culminating in December with just 9 hours. This cyclical pattern not only marks the changing seasons but also invites residents and visitors alike to embrace the varying lengths of daylight throughout the year.
In Hayama, Japan, May brings a gentle breeze with an average wind speed of 5.3 m/s (12 mph), perfectly in line with the preceding months of January through April. This moderate wind pattern, reminiscent of earlier spring days, provides a refreshing contrast to the lighter winds that follow in the summer, particularly in June and July, where speeds dip to 3.7 m/s (8 mph) and 3.3 m/s (7 mph), respectively. As the year progresses, wind speeds gradually recover in August and maintain a consistent presence, hovering around 5.0 m/s (11 mph) through the fall months. Overall, May stands out for its steady winds, marking a transitional phase that leads into warmer skies, while the variability in wind throughout the year highlights the dynamic climate of Hayama.
Weather in Hayama varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Hayama, focusing on differences in temperature, rainfall, humidity, and UV levels.
In May, the weather is notably warmer, with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 23°C (74°F), while January's temperatures are considerably cooler, averaging between 1°C (34°F) and 18°C (64°F). May also experiences higher precipitation with 148 mm (5.8 in) over 11 days, compared to January's 64 mm (2.5 in) spread over just 6 days. The humidity is slightly higher in May at 81%, compared to 76% in January, contributing to a more tropical feel as spring fully arrives. For a more detailed look at January weather, you can check out Hayama weather in January.
May and February present quite contrasting weather patterns. In May, temperatures range from a minimum of 12°C (54°F) to a pleasant average of 18°C (65°F), peaking at a comfortable 23°C (74°F). The month sees considerable rainfall, with 148 mm (5.8 in) spread over 11 days, contributing to a high humidity level of 81%. In contrast, February offers cooler conditions, with temperatures ranging from a chilly minimum of 2°C (36°F) to an average of 8°C (47°F), and a maximum of 17°C (63°F). The precipitation during February is significantly lower, totaling 62 mm (2.4 in) over 8 days, and the humidity is also less, at 74%. For more information, you can check Hayama weather in February.
In comparing the weather between March and May, it's clear that May generally offers warmer and more pleasant conditions. With nighttime temperatures around 12°C (54°F) and daily averages peaking at 18°C (65°F), May sees a notable increase from March's cooler averages of 3°C (38°F) at night and 11°C (52°F) during the day. However, May does experience higher humidity at 81% compared to March's 70%, making it feel more muggy. Additionally, while March has slightly more precipitation at 172 mm (6.8 in) over 12 days, May's precipitation is not far behind at 148 mm (5.8 in) over 11 days. For a more detailed look at March weather, you can visit Hayama weather in March.
In comparing the weather between April and May, we observe a noticeable warming trend. May boasts a minimum temperature of 12°C (54°F) and an average of 18°C (65°F), contrasting with April's cooler minimum of 6°C (43°F) and an average of 14°C (58°F). Despite the warming, May experiences slightly more precipitation, with 148 mm (5.8 in) over 11 days, compared to April's 141 mm (5.5 in) over 12 days. Additionally, the humidity in May rises to 81%, up from April's 74%, making May feel more humid overall. For more detailed insights into April weather, refer to Hayama weather in April.
May and June present noticeable differences in weather conditions. In May, temperatures range from a minimum of 12°C (54°F) to a maximum of 23°C (74°F), with an average of 18°C (65°F). While May sees 148 mm (5.8 in) of precipitation over 11 days, the humidity level is a relatively comfortable 81%. In contrast, June experiences warmer temperatures, with a minimum of 16°C (62°F) and a maximum of 26°C (79°F), averaging around 21°C (70°F). This month also brings increased rainfall, totaling 197 mm (7.8 in) over 13 days and higher humidity at 88%. For more specific insights on June weather, visit Hayama weather in June.
In May, the weather is generally mild, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 23°C (74°F), and an average of 18°C (65°F). However, it sees considerable rainfall, with 148 mm (5.8 in) over 11 days and a humidity level of 81%. In contrast, July experiences warmer temperatures, with a minimum of 19°C (66°F) and a maximum of 28°C (83°F), yielding an average of 25°C (77°F). The precipitation increases significantly to 226 mm (8.9 in) over 17 days, accompanied by higher humidity at 93%. For a detailed look at the July weather, you can visit Hayama weather in July.
May typically experiences milder temperatures, with averages around 18°C (65°F) and maximums reaching 23°C (74°F). In contrast, August presents a significantly warmer climate, boasting average temperatures of 27°C (80°F) and highs of 31°C (87°F). While May sees more precipitation at 148 mm (5.8 in) over 11 days, August is slightly drier with 129 mm (5.1 in) but has a higher humidity level of 90% compared to May's 81%. For more details on the weather during this month, you can check Hayama weather in August.
In comparing the weather between May and September, notable differences in temperature and precipitation emerge. May typically experiences milder temperatures, with averages around 18°C (65°F) and a maximum of 23°C (74°F), while September offers warmer conditions, boasting an average of 24°C (75°F) and highs reaching 29°C (84°F). Despite the increase in temperature, September also sees higher precipitation levels, with 208 mm (8.2 in) expected over 17 days, compared to May's 148 mm (5.8 in) over 11 days. Additionally, humidity levels rise slightly in September, averaging 86% compared to May's 81%. For more detailed insights into September weather conditions, you can refer to Hayama weather in September.
May and October display distinct weather characteristics, with October generally experiencing warmer temperatures. In May, temperatures range from a minimum of 12°C (54°F) to a maximum of 23°C (74°F), averaging around 18°C (65°F) with a relatively high humidity of 81%. This month sees around 148 mm (5.8 in) of rainfall over 11 days. In contrast, October offers slightly higher temperatures, with a minimum of 13°C (56°F) and a maximum of 26°C (79°F), leading to an average of 20°C (68°F). However, it is also significantly wetter, receiving about 303 mm (11.9 in) of precipitation over 17 days. The humidity in October remains similarly high at 83%. For more detailed insights on October weather, you can check Hayama weather in October.
May typically experiences warmer temperatures compared to November, with averages around 18°C (65°F) and maximums reaching 23°C (74°F). In contrast, November sees cooler temperatures, averaging 15°C (60°F) and peaking at 21°C (71°F). While both months experience a fair amount of precipitation, May is significantly wetter with 148 mm (5.8 in) over 11 days, compared to November’s 111 mm (4.4 in) across 12 days. Humidity levels remain fairly consistent, with May at 81% and November slightly lower at 80%. For more detailed insights about November weather, you can visit Hayama weather in November.
May and December present contrasting weather conditions. In May, temperatures are generally milder, with a minimum of 12°C (54°F) and an average of 18°C (65°F), peaking at 23°C (74°F). The month experiences significant rainfall, totaling 148 mm (5.8 in) over 11 days, accompanied by high humidity at 81%. In contrast, December sees cooler temperatures, with a minimum of 3°C (37°F), an average of 11°C (52°F), and a maximum of 21°C (69°F). The precipitation is lower, at 82 mm (3.2 in) over the same number of rainy days, and humidity slightly decreases to 78%. For a more detailed look at December weather, you can visit Hayama weather in December.
As May unfolds in Hayama, the weather shifts into a pleasant transition from the coolness of spring to the warmth of early summer. With an average temperature hovering around 18°C (65°F), days become increasingly inviting, yet still retain a comfortable chill especially in the evenings. While May sees about 11 days of rainfall, the precipitation is generally lighter compared to the heavy downpours of summer months, making it an ideal time for outdoor activities. The humidity levels, averaging 81%, contribute to the lush greenery that characterizes the season, offering a refreshing backdrop for those exploring the beauty of Hayama. For a deeper dive into the regional weather patterns, visit Hayama Climate.