Last updated: August 21, 2025
Hakodate, Japan, in May presents a mild maritime climate characterized by comfortable temperatures that range from a pleasant 20°C (68°F) maximum to a cool 6°C (42°F) minimum, with an average hovering around 11°C (52°F). While locals and visitors alike can enjoy the beauty of spring, they should be prepared for frequent rain, as the city experiences about 116 mm (4.6 in) of precipitation over approximately 11 days. With a humidity level of 86%, the air feels fresh yet may carry a hint of dampness, making it essential to pack an appropriate wardrobe for this delightful coastal city.
As spring unfolds in Hakodate, May brings a refreshing transition with temperatures on the rise. The month opens with a minimum of 6°C (42°F), warming up to a comfortable 20°C (68°F), making it a delightful time to explore the city's blossoming landscapes. With an average temperature of 11°C (52°F), May marks a significant leap from the chilly winter months, where temperatures hovered around freezing. This period not only showcases the beauty of cherry blossoms but also invites both locals and tourists to enjoy outdoor activities as the days grow longer and sunnier, signaling the imminent arrival of summer.
In May, Hakodate experiences a significant uptick in precipitation, with an average of 116 mm (4.6 in) of rainfall, marking the wettest month so far in the year. This increase in rainfall follows a steady rise from 101 mm in April and continues the trend into June, with 128 mm (5.0 in) expected. Interestingly, the number of precipitation days remains relatively steady at 11 days, suggesting that while rain is more abundant, it's distributed over a similar number of days. This pattern indicates the onset of the rainy season, preparing the landscape for the lush greenery that characterizes Hakodate in the following months.
As spring transitions to summer in Hakodate, Japan, May brings a notable spike in humidity, reaching an impressive 86%. This marks a significant increase from the previous months, where humidity levels hovered between 77% and 79%. The rise in moisture heralds the upcoming more humid months of June and July, which peak at 91% and 95%, respectively. This trend underscores Hakodate's journey from the crispness of early spring to the lush, humid atmosphere of summer, creating an inviting environment for those who appreciate the vibrant greenery that follows. As humidity continues to climb through August, peaking at an astonishing 97%, May stands out as the month where the seasonal shift becomes profoundly palpable, setting the stage for the lush summer ahead.
In May, Hakodate, Japan, experiences a dramatic rise in the UV Index, peaking at 9, classified as very high exposure. This surge follows a gradual increase from the mild levels seen in the earlier months, where January began with a low index of 2 and February reached 3. As spring transitions into summer, the burn time plummets to just 15 minutes, putting sun safety at the forefront of outdoor plans. By May, residents and visitors alike must be vigilant, as the sun’s intensity can quickly lead to skin damage. This trend continues into June and July, where the UV Index holds steady at 10. For more information on UV levels throughout the year, check out Hakodate UV Index.
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As spring gives way to early summer, May shines brightly in Hakodate, Japan. With 299 hours of sunshine, it stands out as the sunniest month of the year, marking a vibrant transition from the brisk chill of winter months like January, which only offered 154 hours. This upward trend in daylight highlights a steady increase from February's 202 hours through to the peak of May. The gradual build-up of sunlight from March's 257 hours and April’s 282 hours sets the stage for May's remarkable brilliance, beautifully illustrating how nature awakens and thrives in this coastal city. Following May, the sunshine remains abundant, with June and July also enjoying considerable hours, although slightly less than May. This delightful pattern not only enhances the picturesque views of Hakodate but also invites locals and tourists alike to embrace outdoor activities during the dazzling days of late spring.
As spring transitions into summer in Hakodate, May presents a mixed bag for sunshine lovers, boasting a 32% chance of sunny weather. This marks a slight dip from the more promising 46% in April, suggesting that while the region enjoys blooming flowers and milder temperatures, clear skies aren’t guaranteed. Interestingly, after a peak in sunshine odds in April, the likelihood tends to fluctuate in the subsequent months, with June seeing a modest increase to 39%. So, while May offers opportunities for delightful outdoor activities, it's wise to prepare for occasional cloud cover amid the unfolding beauty of late spring.
As spring settles in Hakodate, Japan, May brings a delightful increase in daylight, with 14 hours of sun illuminating the city. This growing glow marks a significant shift from the 9 hours seen at the start of the year in January, fostering a renewed sense of energy and opportunity. The transition through the months showcases a steady climb, peaking in June at 15 hours of daylight, before gently tapering back down as summer fades into autumn. By the time September rolls around, residents will enjoy 12 hours of daylight, reminding them of the fleeting nature of this vibrant season. Overall, May stands out as a bright harbinger of longer days, inviting exploration and outdoor activities against the backdrop of Hakodate's stunning landscapes.
In Hakodate, Japan, the month of May experiences a gentle breeze, with an average wind speed of 4.0 m/s (9 mph), reflecting the calmer trends of late spring. Following a gradual decline from 6.5 m/s in January to 4.4 m/s in April, May marks the lowest point in wind speed until the warmer months. This slight decrease in airflow continues into June and July, where the wind remains at 3.9 m/s (9 mph), creating a serene atmosphere perfect for enjoying the budding flora. As summer approaches, the wind begins to pick up again in August, bringing a refreshing change at 5.0 m/s (11 mph), before settling into a more stable pattern in the following months. Overall, May’s tranquil winds characterize a transitional period in Hakodate, inviting residents and visitors alike to revel in the mild spring days.
Weather in Hakodate varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Hakodate, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather between May and January, it's clear that May offers a much milder climate. Average temperatures in May range from a chilly 6°C (42°F) to a comfortable 20°C (68°F), while January's temperatures can drop as low as -9°C (16°F), with a maximum of only 8°C (47°F). Additionally, May experiences higher precipitation totals, averaging 116 mm (4.6 in) over 11 days, compared to January's 61 mm (2.4 in) spread over 13 days. While humidity is relatively high in both months, May's humidity of 86% contrasts with January's 79%, making May feel more refreshing despite its higher precipitation. For more details about January weather, you can refer to Hakodate weather in January.
When comparing the weather between February and May, the differences are quite striking. In February, temperatures are significantly cooler, ranging from a minimum of -10°C (15°F) to a maximum of 8°C (47°F), while May enjoys a much milder climate with temperatures between 6°C (42°F) and 20°C (68°F). Additionally, February experiences more days of precipitation, with rain or snow falling over 14 days compared to May's 11 days. The average humidity is slightly lower in February at 78%, as opposed to the higher 86% humidity found in May. For those curious about specific conditions in February, you can find more details here: Hakodate weather in February. Overall, May offers a much warmer and more pleasant climate than the chilly depths of February.
In comparing the weather between March and May, we can see a significant transition as spring advances. March experiences colder temperatures with a minimum of -5°C (23°F) and an average of 3°C (38°F), peaking at 12°C (53°F). In contrast, May warms up considerably, with minimum temperatures around 6°C (42°F) and an average of 11°C (52°F), reaching highs of 20°C (68°F). While March has lower precipitation at 86 mm (3.4 in), the weather in May is wetter, with 116 mm (4.6 in) recorded over the same number of days. Humidity levels also rise in May, reaching 86%, compared to 77% in March. For more detailed insights regarding March weather specifically, you can check out Hakodate weather in March.
In May, temperatures in Hakodate rise significantly compared to April, with minimums around 6°C (42°F) and maximums reaching up to 20°C (68°F), compared to April's range of 1°C (33°F) to 14°C (58°F). The average temperature in May is notably higher at 11°C (52°F) versus April's 7°C (45°F). Although May experiences slightly more precipitation at 116 mm (4.6 inches) over 11 days, it also has higher humidity at 86%, compared to April's 78% humidity over 13 days. For a detailed look at April's weather, visit Hakodate weather in April.
In May, temperatures in Hakodate typically range from a minimum of 6°C (42°F) to a maximum of 20°C (68°F), with an average temperature of 11°C (52°F). The month sees about 116 mm (4.6 in) of precipitation over 11 days, and humidity levels remain relatively high at 86%. In contrast, June experiences slightly warmer temperatures, with a minimum of 9°C (49°F) and a maximum of 21°C (69°F), averaging 15°C (59°F). Precipitation increases to 128 mm (5.0 in) over 12 days, and humidity rises to 91%. Thus, while both months are characterized by cool temperatures and significant rainfall, June offers a slight increase in warmth and humidity. For more details, see Hakodate weather in June.
May and July present contrasting weather patterns. In May, temperatures range from a minimum of 6°C (42°F) to a maximum of 20°C (68°F), with an average of 11°C (52°F). The month sees significant precipitation, with 116 mm (4.6 in) falling over 11 days, contributing to a relatively high humidity level of 86%. In stark contrast, July offers warmer temperatures, with a minimum of 13°C (55°F), an average of 19°C (67°F), and a maximum reaching 27°C (80°F). The month experiences even more rainfall, totaling 152 mm (6.0 in) over 16 days, and humidity rises to 95%. For a closer look at what to expect in July, check out Hakodate weather in July.
In May, the weather typically features cooler temperatures, with a minimum of 6°C (42°F) and an average of 11°C (52°F), peaking at 20°C (68°F). The month is characterized by significant rainfall, averaging 116 mm (4.6 in) over 11 days, and a high humidity level of 86%. In contrast, August brings much warmer conditions, with a minimum temperature of 16°C (61°F), an average of 21°C (71°F), and a maximum of 28°C (83°F). However, this month also experiences increased precipitation, totaling 254 mm (10.0 in) across 17 days, along with a notably high humidity of 97%. For more detailed weather information, check out Hakodate weather in August.
May and September exhibit distinct differences in weather patterns. In May, temperatures range from a minimum of 6°C (42°F) to a maximum of 20°C (68°F), with an average temperature of 11°C (52°F). The month sees around 116 mm (4.6 in) of precipitation across 11 days and a humidity level of 86%. In contrast, September boasts warmer temperatures, with a minimum of 14°C (57°F), an average of 20°C (68°F), and a maximum of 28°C (83°F). The month is also wetter, receiving about 166 mm (6.5 in) over 12 days, with humidity slightly higher at 89%. For a more detailed view of September's weather, you can check Hakodate weather in September.
Overall, September offers a milder climate with higher temperatures and increased rainfall compared to the cooler, more variable weather of May.
In comparison to May, October experiences slightly warmer temperatures, with average highs reaching 23°C (74°F) compared to May's 20°C (68°F). Both months have a minimum temperature of 6°C (42°F), but October's average is notably higher at 15°C (58°F), reflecting a shift towards milder fall weather. While May has 116 mm (4.6 in) of precipitation over 11 days, October sees an increase to 149 mm (5.9 in) over 13 days, indicating a wetter month. Additionally, October's humidity is slightly lower at 81%, down from May's 86%. For more details on October conditions, check out Hakodate weather in October.
May and November present contrasting weather patterns, showcasing the shift from spring to late autumn. In May, temperatures range from a chilly 6°C (42°F) at their lowest to a pleasant 20°C (68°F) at their peak, with an average of 11°C (52°F). Precipitation is relatively high at 116 mm (4.6 in) over about 11 days, contributing to the month’s humid climate, which sits at 86%. In contrast, November brings cooler temperatures with a minimum of -3°C (28°F) and a maximum of 17°C (62°F), averaging 8°C (47°F). While it experiences slightly less precipitation at 103 mm (4.1 in) over 13 days, the humidity decreases to 78%. For a detailed overview of the conditions during this month, check out Hakodate weather in November.
In May, the weather is generally milder, with temperatures ranging from a minimum of 6°C (42°F) to a maximum of 20°C (68°F) and an average of 11°C (52°F). This month experiences higher humidity at 86% and approximately 116 mm (4.6 in) of precipitation over 11 days. In contrast, December brings much colder conditions, where temperatures can drop as low as -7°C (20°F) and typically hover around an average of 2°C (35°F), reaching a maximum of 14°C (57°F). While December has less total precipitation at 89 mm (3.5 in), it sees rainfall or snowfall spread over 18 days and a lower humidity level of 77%. For more information on December weather, you can visit Hakodate weather in December.
As May unfolds in Hakodate, the weather begins to shed its winter coat, offering a pleasant transition into spring. With temperatures averaging around 11°C (52°F), this month stands out as a time of refreshment, marked by vibrant blooms and a more temperate atmosphere. Rain is not uncommon, with about 11 rainy days contributing to a 116 mm (4.6 in) precipitative embrace, which promotes the lush greenery that adorns the city. The 86% humidity levels create a fresh, crisp environment that sets May apart from the chillier, more arid months preceding it. For those yearning to explore this captivating city during a mild season, the delightful May weather is sure to invigorate the senses. To learn more about Hakodate's unique climate, visit Hakodate Climate.