Last updated: August 21, 2025
May in Tsushima, Japan presents a captivating blend of spring warmth and refreshing moisture. With maximum temperatures soaring to 32°C (90°F) and an average of 19°C (67°F), the weather invites outdoor activities amid the blossoming landscape. However, early mornings can be brisk, dipping to a cool 5°C (42°F). Light rain graces the island on approximately 11 days, contributing to a substantial 196 mm (7.7 in) of precipitation that keeps the surroundings lush and vibrant. The high humidity of 83% adds to the island’s serene ambiance, making May a delightful time to experience the natural beauty of Tsushima.
In May, Tsushima, Japan, experiences a delightful transition into warmer weather, making it a perfect month for outdoor activities. With minimum temperatures rising to 5°C (42°F) and an average of 19°C (67°F), the island begins to shake off the chill of spring. Daytime highs can reach a balmy 32°C (90°F), signaling the onset of summer. This significant increase in temperature from the cooler months of March and April not only boosts the island’s beauty but also invites locals and tourists alike to enjoy its lush landscapes and vibrant culture. As the region warms up, May marks the beginning of a season filled with life, color, and warmth in Tsushima.
In May, Tsushima, Japan experiences a notable increase in precipitation, with 196 mm (7.7 in) of rain falling over 11 days. This marks the peak of spring rainfall, continuing the upward trend established in April, which recorded 163 mm (6.4 in)—a clear indication that the region is transitioning towards the wetter summer months. Interestingly, despite the heightened rainfall in May, the number of rainy days remains consistent with March and April, reflecting a pattern of intensified but manageable precipitation. As the island prepares for the approaching summer, this surge in moisture supports lush vegetation, setting a vibrant stage for the changing seasons ahead.
In Tsushima, Japan, May marks a notable rise in humidity, reaching 83%—a slight increase from the previous month and a precursor to the sweltering summer ahead. This uptick mirrors a general trend observed in the region, where humidity consistently escalates from the earlier months of the year. After a relatively comfortable April, the atmosphere begins to thicken, setting the stage for the increasingly humid conditions of June, which peaks at 87%. As summer approaches, the high humidity levels create a vibrant, lush environment, but also a stark contrast to the crisp, cooler air of January, which starts at 82%. This seasonal shift not only alters the landscape but also influences local life, as residents and visitors adapt to the warm, moist climate of Tsushima.
May marks a significant peak in the UV Index in Tsushima, Japan, with a staggering value of 11, classifying it as extreme. This sharp rise from the very high levels seen in April reflects an increased intensity that calls for caution. With a burn time of just 10 minutes, it’s crucial to take protective measures seriously during this month. Following a gradual climb from moderate exposure in January to extreme levels in May, this trend highlights the transition into the summer months, where UV radiation becomes increasingly potent. As such, residents and visitors are urged to stay informed and take precautions to safeguard their skin. For more detailed insights, check the Tsushima UV Index.
UV Risk Categories
As spring transitions into summer, May shines brightly in Tsushima, Japan, boasting 290 hours of sunlight, the highest for this month. The upward trend in sunshine hours from January to May highlights a gradual increase, with each subsequent month delivering more daylight than the last. This crescendo of sunlight not only sets the stage for vibrant flora and thriving outdoor activities but also invites residents and visitors alike to bask in the warmth of approaching summer. Following May, June sees a slight dip to 270 hours, yet it retains significant luminosity that keeps the spirit of the season alive. In essence, May serves as a glorious peak in Tsushima's annual sunshine journey, laying the groundwork for the sun-drenched days of summer ahead.
In May, Tsushima, Japan, sees a notable dip in sunny weather, with only a 26% chance of clear skies. This trend is particularly striking when compared to the spring months, which hover around the 40-50% range—a transition that hints at the onset of the humid summer months. As temperatures rise and the weather becomes more unpredictable, May stands out as a time when clouds are more common, contrasting sharply with October and November, which boast higher probabilities of sunshine at 56% and 59%, respectively. Therefore, if you're planning a visit during this month, it's wise to be prepared for some overcast days, while still hoping for those rare sunny breaks.
In Tsushima, Japan, the transition into spring and early summer brings a significant increase in daylight hours, enhancing the beauty of the island. Starting the year with a steady 10 hours of daylight in January and February, the duration gradually extends to 11 hours in March and then more noticeably to 13 hours in April. By May, residents enjoy 14 hours of sunshine, a trend that continues into June and July, creating the perfect atmosphere for outdoor activities. As summer fades into autumn, the daylight begins to taper off, dropping to 13 hours in August and slowly declining to 12 hours in September, before settling back into a rhythm of 10 hours by November. This cyclical pattern not only highlights the beauty of Tsushima’s changing seasons but also beckons visitors to revel in the long, luminous days of late spring and summer.
In Tsushima, Japan, the May wind offers a gentle reprieve with an average speed of 2.5 m/s (6 mph), slightly lower than the previous months. As spring progresses, the winds begin to calm after reaching 3.0 m/s (7 mph) in both March and April, indicative of a shift towards warmer weather. This drop heralds the onset of summer, where the wind speed continues to wane, reaching its annual low of 1.6 m/s (4 mph) by July. Overall, May serves as a transition month, where the mild breezes create a serene backdrop, inviting both locals and visitors to enjoy the island's breathtaking landscapes without the bluster typically associated with earlier spring months.
Weather in Tsushima varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Tsushima, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present a stark contrast in weather conditions. In May, temperatures can range from a minimum of 5°C (42°F) to a warm average of 19°C (67°F), peaking at 32°C (90°F), alongside considerable precipitation of 196 mm (7.7 in) over about 11 days, resulting in high humidity levels of 83%. In contrast, January features much cooler temperatures, with a minimum of -5°C (23°F) and a modest average of 5°C (41°F), reaching a maximum of 18°C (64°F). Precipitation is significantly lower in January, totaling only 52 mm (2.0 in) over around 7 days, and the humidity remains relatively low at 82%. For more details on the January weather patterns, you can refer to Tsushima weather in January.
When comparing the weather in May and February, a stark contrast emerges. May experiences much warmer temperatures, with a minimum of 5°C (42°F) and an average of 19°C (67°F), peaking at a maximum of 32°C (90°F). In contrast, February is quite chilly, with temperatures ranging from a minimum of -5°C (24°F) to an average of 6°C (42°F) and a high of 22°C (71°F). Additionally, May is considerably wetter, receiving about 196 mm (7.7 in) of precipitation over 11 days, while February sees only 59 mm (2.3 in) over 6 days. Humidity levels are relatively high in both months, but May's humidity averages around 83%, slightly higher than February's 79%. For more information, you can consult Tsushima weather in February.
May and March present quite distinct weather patterns. In May, temperatures range from a minimum of 5°C (42°F) to a maximum of 32°C (90°F), with an average of 19°C (67°F). The month experiences higher humidity at 83% and significant precipitation of 196 mm (7.7 in) over 11 days. In contrast, March features cooler conditions, with temperatures ranging from -1°C (30°F) to 25°C (77°F) and an average of 10°C (50°F). Although March has slightly lower precipitation at 151 mm (6.0 in) for the same number of rainy days, the humidity is lower at 74%. Overall, May tends to be warmer and more humid compared to the chillier and drier conditions of March. For more detailed insights, you can visit Tsushima weather in March.
In comparing the weather of May and April, May demonstrates significantly warmer temperatures, with an average of 19°C (67°F) and a maximum reaching 32°C (90°F), while April sees a lower average of 14°C (58°F), peaking at 29°C (84°F). Precipitation also increases in May, totaling 196 mm (7.7 in) over 11 days compared to April's 163 mm (6.4 in) over 10 days. Additionally, humidity rises in May to 83%, compared to 76% in April, making the air feel more humid and potentially uncomfortable. For more specific details about April’s weather patterns, check this link: Tsushima weather in April.
May and June exhibit notable differences in weather despite similar precipitation levels. In May, temperatures range from a chilly minimum of 5°C (42°F) to a warm maximum of 32°C (90°F), with an average of 19°C (67°F) and humidity at 83%. The month experiences 11 days of rainfall, totaling 196 mm (7.7 in). In contrast, June sees a rise in temperatures, with a minimum of 12°C (54°F), an average of 23°C (74°F), and a peak of 33°C (91°F). The humidity increases slightly to 87%, and rainfall is observed over 14 days, still totaling 196 mm (7.7 in). For more details on June weather, you can check Tsushima weather in June.
May and July exhibit significant contrasts in weather patterns. May experiences milder temperatures, with a minimum of 5°C and an average of 19°C, while July sees a notable increase, featuring a minimum of 20°C and an average temperature of 27°C. Precipitation also rises sharply from 196 mm over 11 days in May to 384 mm over 23 days in July, contributing to higher humidity levels, which reach 93% in July compared to 83% in May. This makes July not only hotter but also more humid and wetter than May. For more details, you can check Tsushima weather in July.
May and August present quite contrasting weather patterns. In May, temperatures range from a cool 5°C (42°F) to a pleasant average of 19°C (67°F), with maximums reaching up to 32°C (90°F). However, this month also sees significant rainfall, with 196 mm (7.7 in) spread over 11 days and humidity levels averaging 83%. In stark contrast, August experiences much warmer conditions, with minimum temperatures starting at 19°C (67°F) and averaging 29°C (84°F), peaking at a scorching 38°C (100°F). August also brings higher precipitation levels, totaling 253 mm (10.0 in) over 16 days, and an increase in humidity to 91%. For greater detail on August weather, you can visit Tsushima weather in August.
May and September showcase distinct weather patterns, with May generally experiencing milder temperatures compared to September. In May, temperatures range from a minimum of 5°C (42°F) to a maximum of 32°C (90°F), with an average of 19°C (67°F). However, it is also a month marked by significant rainfall, totaling 196 mm (7.7 in) over 11 days, coupled with a humidity level of 83%.
In contrast, September is warmer, with temperatures fluctuating between a minimum of 12°C (54°F) and a maximum of 37°C (98°F), averaging 25°C (76°F). This month also sees increased precipitation, totaling 225 mm (8.9 in) across 16 days, and slightly higher humidity at 87%.
For more detailed insights on September weather, you can visit Tsushima weather in September.
In May, temperatures range from a minimum of 5°C (42°F) to a maximum of 32°C (90°F), with an average of 19°C (67°F). The month experiences approximately 196 mm (7.7 in) of precipitation over 11 days and maintains a relatively high humidity level of 83%. In contrast, October sees slightly milder minimum temperatures at 7°C (44°F), while the average remains similar at 19°C (66°F) and the maximum can still reach 32°C (90°F). October also brings increased rainfall, totaling around 246 mm (9.7 in) over 14 days, with humidity slightly higher at 85%. For more detailed information about weather conditions, visit Tsushima weather in October.
May and November present quite different weather patterns, with May characterized by warmer temperatures ranging from a minimum of 5°C (42°F) to a maximum of 32°C (90°F) and an average of 19°C (67°F). This month sees significant precipitation, tallying up to 196 mm (7.7 in) over about 11 days, combined with high humidity at 83%. In contrast, November features cooler temperatures, with a minimum of 1°C (33°F), an average of 13°C (55°F), and a maximum of 24°C (76°F). This month experiences much less rainfall, totaling only 61 mm (2.4 in) over about 5 days, while humidity remains consistent at 83%. For more specific details, you can explore Tsushima weather in November.
May and December exhibit quite different weather patterns. In May, temperatures range from a minimum of 5°C (42°F) to a maximum of 32°C (90°F), with an average of 19°C (67°F), making it a warm month characterized by relatively high humidity at 83%. However, it also experiences significant rainfall, with 196 mm (7.7 in) over about 11 days. In contrast, December brings cooler temperatures, with a minimum of -5°C (24°F) and a maximum of 20°C (68°F), averaging 7°C (45°F). The precipitation drops substantially to 68 mm (2.7 in) spread over just 7 days, while the humidity remains constant at 83%. For more details, you can explore Tsushima weather in December.
May in Tsushima ushers in a vibrant transition from the cooler months to the warmth of summer, characterized by mild temperatures and a significant uptick in humidity. With an average temperature hovering around 19°C (67°F), days become increasingly pleasant, inviting outdoor activities. However, the month also brings occasional rainfall, with around 11 precipitation days contributing to a total of 196 mm of rainfall, ensuring the lush landscapes are well-nourished. As the humidity peaks at 83%, the atmosphere can feel quite tropical. Overall, May's weather distinctly stands out compared to the chillier months, embodying the essence of spring's full bloom. For a more detailed overview, check out Tsushima Climate.