Last updated: August 21, 2025
In May, Shimabara, Japan, experiences a delightful transition into warmer weather, with temperatures peaking at a maximum of 30°C (86°F) and settling at an average of 21°C (69°F). Visitors can expect a refreshing coolness at night, with minimum temperatures dipping to around 10°C (50°F). May is characterized by a notable amount of rainfall, totaling 214 mm (8.4 in) across approximately 12 precipitation days, contributing to the lush greenery of the region. With an average humidity level of 84%, the weather creates a tropical ambiance, making it an ideal time for outdoor exploration and enjoying the scenic beauty of Shimabara.
In May, Shimabara embraces the warmth of spring with temperatures that signal the seasonal shift. Here, the daily minimum settles at a comfortable 10°C (50°F), while the average climbs to a pleasant 21°C (69°F). As days progress, the maximums can reach up to 30°C (86°F), inviting outdoor activities and blooming landscapes. This month marks a noticeable transition from the cooler early months of the year, where lows dipped below freezing, to milder evenings that hint at the approaching summer heat. With such delightful temperatures, May is an ideal time to explore Shimabara's natural beauty and cultural treasures.
May brings a significant surge in precipitation in Shimabara, Japan, with 214 mm (8.4 in) of rain falling over 12 days. This month marks a peak in the spring rains, setting the stage for the even heavier monsoon season just around the corner. The steady increase in rainfall, which begins at 53 mm (2.1 in) in January and escalates dramatically through the months, foreshadows the forthcoming wet summer. May's deluge not only highlights the region's transition into a more humid climate but also serves as a reminder of the increasing frequency of rain days as the year progresses. With the rainy season looming, Shimabara's lush landscapes seem to thrive in anticipation of the abundant moisture to come.
As spring transitions to summer in Shimabara, Japan, May brings a noticeable surge in humidity levels, which peak at 84%. This increase is part of a clear upward trend that begins in the cooler months: January starts at a relatively comfortable 75%, but by April, the humidity rises to 78%, setting the stage for the impending summer heat. May's humidity, while higher than previous months, serves as a precursor to the sweltering conditions of June and July, where levels climb to 86% and 92% respectively. This gradual ascent highlights Shimabara's transformation as it moves from the mildness of spring into the intense moisture of summer, perfectly illustrating the region's distinct seasonal shifts.
In May, Shimabara, Japan, continues to experience extreme UV levels, mirroring the intensity observed in April with a UV Index of 11, necessitating vigilant sun protection as the burn time remains a brisk 10 minutes. This trend of high UV exposure peaks from late spring through summer, making outdoor activities a potential risk without proper precautions. As the days get longer and sunnier, it’s crucial for residents and visitors alike to stay informed and protected against harmful UV rays. Notably, the intensity will hold steady into June and July, ensuring that May serves as both a beautiful and cautionary bridge to the summer months. For more details, you can check the complete information on the Shimabara UV Index.
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In May, Shimabara, Japan, enjoys a delightful 279 hours of sunshine, making it one of the sunniest months of the year. Following a steady increase from 180 hours in January to 282 hours in April, May maintains a vibrant level of sunshine that is perfect for outdoor explorations and local festivities. Interestingly, while the sunshine hours dip slightly in June, it overall marks a peak, leading into the summer months where August boasts an impressive 300 hours. This trend of bright days underscores the charm of Shimabara's late spring, inviting visitors to bask in the warmth and beauty of this enchanting locale.
In May, Shimabara experiences a notable dip in sunny weather, with only a 28% chance of clear skies. This is a shift from the slightly sunnier months of April, where the probability stands at 41%, and March, which is even lower at 37%. As spring transitions into summer, the likelihood of sunshine decreases further into June, dropping to a mere 21%. This trend highlights that as the landscape blossoms, the actual sunny days seem to wane, setting the stage for a shift towards the cloudier months ahead. Therefore, while May may be lush and vibrant, those seeking sunshine may want to temper their expectations.
As spring unfolds in Shimabara, Japan, the daylight duration gradually extends, bringing a refreshing vibrancy to the landscape. In January, residents experience around 10 hours of sunlight, but as we move into February and March, that light increases subtly to 11 hours. By April, the days grow noticeably longer, offering 12 hours of daylight, and in May, this trend peaks with 13 hours of bright, welcoming sun. The transition into summer continues this upward trajectory, reaching 14 hours in June and July, providing ample time for outdoor activities and enjoyment of the natural beauty. However, as August rolls in, daylight begins to wane to 13 hours, signaling the onset of autumn. In the following months, daylight decreases steadily, with 11 hours by October and returning to 10 hours by December, reinforcing a rhythmic cycle that defines Shimabara's captivating year-round light experience.
In Shimabara, Japan, the month of May typically experiences a mild average wind speed of 2.6 m/s (6 mph), signaling a gentle transition into the warmer months. This slight dip in wind intensity from April's 2.7 m/s reflects a broader trend observed in Spring, where wind speeds gradually decline from a peak in the early months of the year. Additionally, this trend continues into June, which sees the winds drop further to 1.6 m/s (4 mph), inviting a serene atmosphere as the region prepares for the summer heat. The overall pattern suggests a shift toward calmer conditions, perfect for enjoying the blossoming landscape of Shimabara during this delightful time of year.
Weather in Shimabara varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Shimabara, focusing on differences in temperature, rainfall, humidity, and UV levels.
May exhibits a warmer and more humid climate compared to the chill of January. With temperatures ranging from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), May averages a pleasant 21°C (69°F). In contrast, January's cooler climate sees temperatures dipping as low as -2°C (29°F) and peaking at 19°C (66°F), resulting in an average of only 8°C (46°F). Additionally, May experiences significantly more precipitation, with 214 mm (8.4 in) falling over 12 days, while January brings just 53 mm (2.1 in) over 6 days. For more insights into January's weather, check out Shimabara weather in January.
When comparing the weather in May and February, it's clear that May offers significantly warmer temperatures, with average highs reaching up to 30°C (86°F) compared to February's maximum of 22°C (71°F). The minimum temperature in May is also much milder at 10°C (50°F) versus February's chilly -2°C (29°F). Additionally, May experiences more precipitation, with a total of 214 mm (8.4 in) over 12 days, while February sees only 92 mm (3.6 in) across 9 days. The humidity is higher in May at 84%, compared to February's 71%, making it feel quite different as the seasons transition. For more detailed information, you can check Shimabara weather in February.
In comparing the weather of May and March, it’s clear that May experiences significantly warmer temperatures, with averages around 21°C (69°F) compared to March's cooler average of 12°C (55°F). The maximum temperature in May can reach up to 30°C (86°F), while March peaks at 24°C (76°F). Additionally, May has higher precipitation levels at 214 mm (8.4 in) over 12 days, compared to March’s 145 mm (5.7 in) over 11 days. Humidity is also more pronounced in May at 84%, versus 71% in March, contributing to a more humid atmosphere. For more detailed information about March weather, you can visit Shimabara weather in March.
In comparison to April, May experiences warmer temperatures, with minimums rising from 5°C (41°F) to 10°C (50°F) and average highs increasing from 29°C (84°F) to 30°C (86°F). The average temperature in May reaches 21°C (69°F), compared to April’s 16°C (62°F). However, May also sees significantly more precipitation, with 214 mm (8.4 in) over 12 days, compared to April’s 135 mm (5.3 in) over just 8 days. Additionally, humidity levels are higher in May at 84%, compared to 78% in April, leading to a more tropical feel as spring progresses. For more detailed insights, you can check Shimabara weather in April.
May and June each bring distinct weather characteristics. In May, temperatures range from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), with an average of 21°C (69°F). The month experiences significant precipitation, totaling 214 mm (8.4 in) over about 12 days, contributing to a relatively high humidity level of 84%.
In contrast, June sees warmer temperatures, with a minimum of 16°C (60°F), an average of 24°C (75°F), and a maximum reaching 32°C (90°F). However, it also brings increased rainfall, totaling 262 mm (10.3 in) over approximately 15 days, with humidity slightly elevated at 86%. The wetter, more humid conditions of June are indicative of the seasonal transition toward summer. For more information, you can check out Shimabara weather in June.
In comparison to May, July experiences significantly warmer temperatures, with a minimum of 20°C (68°F) and an average high of 37°C (99°F), compared to May's range of 10°C (50°F) to 30°C (86°F). July also sees an increase in humidity, rising to 92%, which adds to the discomfort of the heat. Rainfall is more abundant in July, with 475 mm (18.7 in) of precipitation spread over 19 days, compared to May's 214 mm (8.4 in) over 12 days. For more details on July weather in Shimabara, you can refer to Shimabara weather in July.
In May, temperatures range from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), with an average of 21°C (69°F), making it a comfortably warm month. However, the precipitation level is fairly high at 214 mm (8.4 in) over 12 days, along with an average humidity of 84%. In contrast, August sees significantly higher temperatures, with a minimum of 20°C (68°F), an average of 29°C (85°F), and a maximum reaching 39°C (102°F). This month also experiences increased rainfall of 303 mm (11.9 in) over 14 days and heightened humidity at 91%. For more detailed insights, check out the Shimabara weather in August.
In May, the weather features a range of temperatures from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), with an average temperature of 21°C (69°F). The month sees significant precipitation, totaling 214 mm (8.4 in) over approximately 12 rainy days, combined with a high humidity level of 84%. In contrast, September experiences warmer temperatures, starting at a minimum of 16°C (62°F) and rising to a maximum of 35°C (94°F), with an average of 25°C (78°F). The rainfall also increases slightly to 228 mm (9.0 in) over about 15 days, while humidity remains consistent at 84%. For more details on September weather, you can check Shimabara weather in September.
May and October exhibit similar average temperatures, both around 21°C (69°F), with minimums of 10°C (50°F). However, October tends to be slightly warmer at its maximum, peaking at 33°C (91°F) compared to May's 30°C (86°F). In terms of precipitation, May is notably wetter, receiving 214 mm (8.4 in) over 12 days, while October sees a decrease to 120 mm (4.7 in) across just 9 rainy days. The humidity remains relatively constant, with May at 84% and October slightly lower at 83%. For more detailed weather insights, you can explore Shimabara weather in October.
May and November present striking contrasts in weather, reflecting their respective positions in the spring and autumn seasons. In May, temperatures range from a minimum of 10°C (50°F) to a warm maximum of 30°C (86°F), with an average of 21°C (69°F). The month is characterized by high humidity at 84% and significant precipitation totaling 214 mm (8.4 in) over 12 days. In contrast, November sees cooler temperatures, ranging from a minimum of 3°C (38°F) to a maximum of 25°C (78°F), with an average of 15°C (59°F). Precipitation is notably lower at 80 mm (3.1 in) over 8 days, and humidity remains relatively high at 81%. For more detailed information, you can check out Shimabara weather in November.
May and December present two contrasting weather profiles. In May, temperatures range from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), with an average of 21°C (69°F). This month also experiences significant rainfall, totaling 214 mm (8.4 in) over about 12 days, coupled with high humidity at 84%. On the other hand, December sees much cooler temperatures, with a minimum of 0°C (33°F), an average of 10°C (49°F), and a maximum of 24°C (76°F). Precipitation is considerably lower, at 89 mm (3.5 in) spread over just 7 days, along with a slightly lower humidity of 79%. For a more detailed look at December weather, you can refer to Shimabara weather in December.
As spring unfolds, May in Shimabara offers a delightful departure from the chill of earlier months, showcasing a gentle rise in temperatures that invite outdoor adventures. With an average of 21°C (69°F), the month is characterized by warm, pleasant days, contrasting with the cooler spells of April. However, this increase in warmth comes hand-in-hand with higher humidity levels, resulting in a lush, vibrant landscape. While May does see some rainfall—with around 12 days contributing to a total of 214 mm (8.4 in) of precipitation—it’s the balance of warmth and moisture that fosters the region’s natural beauty. For a deeper dive into what you can expect weather-wise throughout the year, visit Shimabara Climate.