Last updated: August 21, 2025
May in Muroran, Japan presents a refreshing transition into spring, characterized by a maximum temperature of 22°C (73°F) and an average of 10°C (50°F). The month experiences a minimum of 5°C (41°F), ensuring cool evenings and mornings. Rain is a frequent companion, with 99 mm (3.9 in) of precipitation over 10 days, contributing to the region’s lush greenery. High humidity levels at 86% add a touch of atmospheric richness, creating a dynamic weather experience that highlights the beauty of this coastal city in late spring.
In Muroran, Japan, May ushers in a noticeable shift towards milder temperatures, marking a departure from the lingering chill of the earlier months. With minimum temperatures averaging 5°C (41°F) and maximums reaching 22°C (73°F), the month offers a refreshing climate for outdoor activities and exploration. The average temperature hovers around 10°C (50°F), indicating a significant warming trend compared to the previous months. As spring fully unfolds, residents and visitors alike can enjoy the comfortable weather, making May an ideal time to appreciate the vibrant natural beauty of Muroran. This transition marks a delightful contrast to the cold snap of winter, setting the stage for the warmer summer months that follow.
In May, Muroran, Japan, experiences a notable increase in precipitation, with 99 mm (3.9 in) of rainfall spread over 10 days. This uptick follows the patterns set in earlier months, where April's already healthy total of 86 mm (3.4 in) hints at the transition into a wetter period. As spring progresses, May's rainfall not only surpasses that of its predecessor but also sets the stage for the even wetter months ahead in June and July, which average over 120 mm. This trend highlights a clear progression toward a more humid climate as summer approaches, making May a pivotal month in Muroran's precipitation calendar and an essential time for the region's vibrant plant life to flourish.
In Muroran, Japan, the month of May marks a noticeable rise in humidity levels, reaching a comfortable 86%. This increase signals the transition toward the summer months, where humidity steadily climbs to its peak in August at a staggering 95%. Interestingly, May's humidity is slightly higher than the preceding months of April and March, which both sat at 81%. The pattern suggests that as spring gives way to summer, residents can expect a gradual intensification of moisture in the air, creating a lush, vibrant atmosphere as nature flourishes. With June following closely at 87%, it becomes clear that Muroran's climate will soon envelop visitors in the warmth of its humid embrace, enhancing the region's natural beauty.
As May arrives in Muroran, Japan, residents and visitors experience a notable increase in sun intensity, with the UV Index skyrocketing to 9, classified as very high. This surge in UV exposure signifies a sharp rise from the previous months, reflecting a shift from moderate to high levels of risk. Consequently, the burn time significantly decreases to just 15 minutes, urging everyone to adopt protective measures like sunscreen and hats to enjoy their time outdoors safely. This trend continues into June and July, where the UV Index remains at very high levels of 10 and 9, respectively. With such potent sunshine during May, it's crucial to stay vigilant and informed about the local UV conditions. For more detailed information, visit Muroran UV Index.
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In May, Muroran, Japan, basks in the glorious sunshine with a remarkable 300 hours of sunlight, marking the peak of its spring radiance. This uplifting trend begins in January, where only 142 hours of sunlight can be found, gradually increasing each month as the days grow longer. By the time we reach April, the sunshine has already enhanced to 285 hours, heralding the vibrant energy of May. Following this bright month, June experiences a slight dip to 294 hours but continues to enjoy an abundance of daylight. Overall, the month of May stands out as a pivotal moment, representing the transition into summer and the joyful embrace of warmer, sunnier days that characterize Muroran’s beautiful landscape.
In Muroran, Japan, May marks a subtle shift in weather patterns, as the likelihood of sunny days dips to 31%, comparable to the cooler winter months. Although this represents a slight decrease from the more promising 45% in April, the arrival of spring often brings a refreshing feel to the air. Interestingly, as the year progresses, months like June and September show more favorable conditions with chances of sun climbing back to 43% and 40%, respectively. This fluctuation in sunny weather underscores the region's transitional climate, where the beauty of early spring gives way to the longer, warmer days of summer. Therefore, while May may not be the sunniest month, it still holds the potential for invigorating moments amidst the gradually brightening landscape.
In Muroran, Japan, the progression of daylight throughout the year reveals a captivating trend that mirrors the changing seasons. Starting with 9 hours of daylight in January, the length gradually increases, reaching a vibrant 14 hours in May, signaling the height of spring and the approach of summer. As the months unfold, June sees a peak at 15 hours, creating an abundance of light and warmth. However, this summer brightness is soon tempered, as daylight begins to wane in July, tapering back to 14 hours, and continuing its descent through August and into the fall months. By November, daylight dwindles back to 9 hours, completing the cyclical journey that reflects nature’s rhythm and transformation.
In Muroran, Japan, the winds of May begin to whisper a softer tune, averaging 4.3 m/s (10 mph)—a gentle decline from the brisker breezes earlier in the year. Following the winter months, where speeds lingered around 7 m/s, May marks a transition into spring, characterized by milder conditions. This trend continues into June, with wind speeds dipping even further to 3.9 m/s (9 mph), suggesting a calming atmosphere as the region prepares for the warmth of summer. Interestingly, the fluctuations during the spring months indicate that while May may feel peaceful, it’s part of a seasonal pattern leading into more variable summer breezes.
Weather in Muroran varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Muroran, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January showcase a stark contrast in weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to a pleasant maximum of 22°C (73°F), with an average around 10°C (50°F). The month sees about 99 mm (3.9 in) of precipitation spread over 10 days, alongside high humidity levels at 86%. In comparison, January is much colder, with temperatures dipping as low as -9°C (16°F) and a maximum of only 8°C (47°F), averaging -1°C (30°F). Precipitation is lower at 66 mm (2.6 in) over 13 days, and the humidity remains relatively high at 84%. For more detailed information, check Muroran weather in January.
May and February present starkly contrasting weather conditions. In May, temperatures range from a minimum of 5°C (41°F) to a pleasant maximum of 22°C (73°F), with an average of 10°C (50°F), making it a much warmer month compared to February's chilling temperatures, which sit between -10°C (14°F) and a maximum of 6°C (43°F), averaging at -1°C (30°F). While May experiences more precipitation at 99 mm (3.9 in) over 10 days, February has slightly less at 59 mm (2.3 in) spread across 13 days, contributing to a similar humidity level—86% in May and 83% in February. For more detailed insights on February's conditions, you can check Muroran weather in February.
In comparing the weather between March and May, there are notable differences in temperature and precipitation. March typically experiences colder conditions, with minimum temperatures dipping as low as -5°C (23°F) and an average of 2°C (36°F), whereas May sees much warmer temperatures, ranging from a minimum of 5°C (41°F) to a maximum of 22°C (73°F). While March has a total precipitation of 81 mm (3.2 in) over about 9 days, May has a slightly higher precipitation level of 99 mm (3.9 in) spread across 10 days. Additionally, humidity levels are higher in May at 86%, compared to March's 81%. For more detailed information, you can refer to Muroran weather in March.
In comparing the weather of April and May, it is evident that May experiences a notable increase in temperature, with average highs reaching 22°C (73°F) compared to April's maximum of 15°C (59°F). Additionally, May has a higher average minimum temperature of 5°C (41°F) versus April's 0°C (32°F), highlighting a shift towards warmer conditions. Although both months have considerable rainfall, May sees slightly more precipitation at 99 mm (3.9 in) over 10 days, compared to April's 86 mm (3.4 in) over 11 days. Furthermore, humidity levels in May average around 86%, which is higher than April's 81%. For more detailed information about April weather, you can refer to Muroran weather in April.
May and June showcase a gradual transition in weather conditions. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 22°C (73°F), with an average of 10°C (50°F). The month experiences 99 mm (3.9 in) of precipitation across about 10 days, along with a humidity level of 86%. In contrast, June sees slightly milder temperatures, with minimums at 9°C (48°F), an average of 14°C (58°F), and a maximum of 20°C (69°F). This month also records increased precipitation at 126 mm (5.0 in) over 11 days, resulting in a humidity of 87%. For a detailed look at June weather, check out the Muroran weather in June.
May and July exhibit notable differences in weather patterns. In May, temperatures range from a chilly minimum of 5°C (41°F) to a comfortable maximum of 22°C (73°F), with an average of 10°C (50°F). The month sees approximately 99 mm (3.9 in) of precipitation over about 10 days, accompanied by a relatively high humidity of 86%. In contrast, July warms up significantly, with minimum temperatures of 13°C (55°F) and maximums reaching 26°C (79°F), averaging 19°C (66°F). However, July experiences more precipitation, totaling around 128 mm (5.0 in) over 14 days, with even higher humidity levels at 93%. For more detailed information about July's weather, you can visit Muroran weather in July.
In May, the weather is generally cooler, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 22°C (73°F) and an average of 10°C (50°F). The month experiences about 99 mm (3.9 in) of precipitation over approximately 10 days, with humidity levels at 86%. In contrast, August sees significantly warmer temperatures, with a minimum of 16°C (61°F), an average of 21°C (70°F), and a maximum reaching 27°C (82°F). However, it also brings increased precipitation, totaling 194 mm (7.7 in) spread across 15 days, and higher humidity at 95%. For more details on August weather, you can check out Muroran weather in August.
In comparing the weather of May and September, we can see notable differences in temperature and precipitation patterns. May typically experiences a milder climate with minimum temperatures around 5°C (41°F) and an average of 10°C (50°F), peaking at 22°C (73°F). However, it also sees considerable rainfall, with 99 mm (3.9 in) over about 10 days, accompanied by high humidity at 86%. In contrast, September enjoys warmer temperatures, with minimums of 13°C (56°F), an average of 19°C (67°F), and a maximum of 27°C (81°F). Yet, it has even higher rainfall, totaling 137 mm (5.4 in) over approximately 13 days, and slightly elevated humidity at 88%. For a more detailed look at September weather, you can refer to this link: Muroran weather in September.
May and October both present mild temperatures, but October tends to be slightly warmer on average. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 22°C (73°F), while in October, the minimum is 6°C (43°F) and maximum reaches 23°C (73°F). However, October experiences more precipitation, averaging 127 mm over 12 days compared to May's 99 mm over 10 days. Additionally, humidity is slightly lower in October at 83%, compared to May’s 86%. For a detailed look at the weather conditions in October, you can check Muroran weather in October.
In comparing the weather between May and November, May typically showcases milder temperatures ranging from a minimum of 5°C (41°F) to a maximum of 22°C (73°F), with an average of 10°C (50°F). The month experiences about 99 mm (3.9 in) of precipitation over roughly 10 days, accompanied by high humidity levels of 86%. In contrast, November features cooler temperatures, with a minimum of -3°C (28°F) and a maximum of 17°C (62°F), averaging around 8°C (46°F). Although precipitation is slightly lower at 95 mm (3.8 in) over approximately 13 days, the humidity is more comfortable at 79%. For a closer look at the specifics of November's climate, you can visit Muroran weather in November.
May and December present contrasting weather patterns, reflective of the shift between spring and winter. In May, temperatures range from a chilly 5°C (41°F) at night to a pleasant 22°C (73°F) during the day, with an average of 10°C (50°F). The month experiences about 99 mm (3.9 in) of precipitation over 10 days, coupled with a high humidity level of 86%, creating a lush and vibrant atmosphere. In stark contrast, December brings much colder conditions, with temperatures dipping as low as -6°C (21°F) and averaging just 1°C (35°F), peaking at 13°C (56°F). Although precipitation is slightly lower at 86 mm (3.4 in), it occurs more frequently over 21 days, and the humidity sits at a cooler 80%. For further details on December weather, you can check Muroran weather in December.
As May arrives in Muroran, it brings a refreshing shift in weather compared to the chillier months preceding it. With temperatures gradually warming and complemented by higher humidity, the landscape begins to bloom, inviting outdoor exploration. However, the month also has its share of rain, making it essential for visitors to prepare for occasional showers. The overall climate in May is a beautiful balance of warmth and moisture, setting the stage for summer's full arrival. For a deeper dive into the unique weather patterns of this charming city, check out Muroran Climate.