Last updated: August 21, 2025
May in Izu, Japan, offers a delightful blend of warm temperatures and refreshing rainfalls. With a maximum temperature reaching around 28°C (82°F) and an average of 18°C (65°F), this month is characterized by pleasant weather that invites outdoor activities. The minimum temperature can drop to a cool 9°C (48°F) at night, providing a comfortable contrast. However, be prepared for the occasional downpour, as 194 mm (7.6 in) of precipitation falls over approximately 12 days, contributing to the region's lush greenery. The humidity levels hover around a high 81%, creating a tropical feel that enhances the overall charm of Izu during this vibrant month. Enjoy the mix of sunshine and showers that makes May a unique experience in this beautiful coastal paradise!
As spring gives way to summer, Izu, Japan experiences a delightful warm-up in May. With minimum temperatures rising to 9°C (48°F) and average highs reaching a pleasant 28°C (82°F), this month marks a significant transition from the cooler temperatures of April. The average temperature settles at 18°C (65°F), creating an inviting atmosphere for outdoor activities. This shift not only brings more warmth but also bodes well for visitors seeking to enjoy the region's stunning natural beauty. As May unfolds, Izu becomes a vibrant canvas of blooming flora, making it an ideal time for travelers to soak in the scenic landscapes and mild climate before the summer heat intensifies.
In May, Izu, Japan sees a notable continuation of spring's showering embrace, with 194 mm (7.6 in) of precipitation over 12 days. This month stands out as one of the wettest in the early half of the year, following a substantial March and April. As temperatures rise and the lush greenery begins to flourish, the frequent rains contribute to a vibrant landscape, setting the stage for the more intense downpours of June and July ahead. Interestingly, while May's rainfall is slightly less than that of June, it marks a transition, signaling the onset of the region's rainy season with increasing frequency, as locals prepare for a summer that promises both beauty and abundant rainfall.
In May, Izu, Japan, experiences a notable rise in humidity, peaking at 81%, which marks the beginning of a trend toward a more humid summer. After a gradual decline from 76% in January to 70% in March, humidity levels rebound in April, suggesting the onset of moist conditions. The jump to 81% in May signals a transition, paving the way for even higher humidity in the coming months. As June approaches, humidity escalates to 88%, foreshadowing the extremely humid July and August, with averages soaring to 93% and 90%, respectively. This trend underscores Izu’s seasonal shift, transforming it into a lush and vibrant landscape as it heads into the warmer months.
As the warm month of May arrives in Izu, Japan, residents and visitors should be particularly vigilant regarding sun exposure, as the UV Index peaks at an extreme 11. This significant rise in UV radiation signals a shift from the previous months, where the indices steadily increased from moderate levels in January to very high by April. With a burn time of just 10 minutes, May marks a critical time to take precautions to protect your skin, as the potential for sunburn is substantial. Following this month, June and July also maintain an extreme UV Index, emphasizing a need for ongoing sun safety. For a comprehensive understanding of UV radiation patterns throughout the year in Izu, check out the detailed insights available at Izu UV Index.
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May brings a delightful surge of sunlight to Izu, Japan, with 282 hours of brilliant sunshine that stand out against the earlier months. As winter bids farewell, the steady increase in daylight from January to April sets the stage for a vibrant spring. This delightful trend peaks in May, showcasing the region's beauty just as nature awakens. While the sun-drenched days of August eclipse May with 285 hours, the warmth of late spring creates an inviting atmosphere for outdoor adventures. Following May, there's a gentle decline in sunshine through the summer, with June and July seeing 253 and 229 hours, respectively. This rhythm of light not only enhances Izu's stunning landscapes but also invites visitors to bask in the region's splendor during one of its sunniest seasons.
In Izu, Japan, the likelihood of enjoying sunny weather fluctuates throughout the year, with May presenting a notably lower 25% chance of sun. As spring transitions into summer, this figure marks a significant decline from the sunnier days in the earlier months, with January and February boasting chances of 59% and 66%, respectively. The trend shows that April provides a slight uptick at 48%, but May's dip underscores the shift toward the cloudier, humid days of June, which offers just 22% sunshine. This pattern illustrates that while May has its bright moments, it often yields to the overcast skies typical of early summer in Izu.
As spring transitions into summer, Izu, Japan experiences a notable increase in daylight duration, peaking in May with an impressive 14 hours of sunlight, a marked contrast to the shorter days of winter. Starting the year with just 10 hours in both January and February, daylight steadily extends, growing to 11 hours in March and 13 hours by April. This upward trend continues, creating longer, brighter days that are perfect for outdoor activities and exploring the region's natural beauty. After reaching the summer zenith in May and June, daylight begins to taper off, gradually decreasing to 12 hours in September and further down to 10 hours by November. This cyclical pattern not only highlights the approach of the seasonal changes but also invites both locals and visitors to fully embrace the vibrant days of spring and early summer in Izu.
In May, Izu, Japan, experiences a gentle breeze with an average wind speed of 3.0 m/s (7 mph), slightly elevated from the preceding months of April and March. This increase in wind speed heralds the transition to summer, as the area prepares for warmer days ahead. Analyzing the year, it's clear that while the winter months, particularly January and February, show moderate winds at 3.3 m/s and 3.7 m/s, the winds tend to diminish during the peak of summer in July and June, when they drop to 2.0 m/s (5 mph). However, May serves as a pleasant prelude, with breezes that are refreshingly mild yet noticeable, adding a delightful ambiance to the beauty of Izu's spring landscape. As the year progresses, wind patterns indicate a cycle, making October and November slightly breezier again, suggesting a rhythm that harmonizes with nature's changing seasons.
Weather in Izu varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Izu, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January offer contrasting weather experiences. In May, temperatures range from a mild 9°C (48°F) to a pleasant maximum of 28°C (82°F), with an average of 18°C (65°F). This month also sees higher precipitation, averaging 194 mm (7.6 in) over about 12 days, accompanied by a high humidity level of 81%. In stark contrast, January presents a much cooler climate, with temperatures dipping as low as -2°C (29°F) and peaking at 18°C (64°F), averaging just 7°C (44°F). Precipitation is significantly lower in January, totaling 68 mm (2.7 in) across only 5 days, and humidity is a bit lower at 76%. For more details on January weather, check out Izu weather in January.
May and February present quite contrasting weather patterns. In May, temperatures range from a mild 9°C (48°F) at night to a warm 28°C (82°F) during the day, with an average of 18°C (65°F). This month sees significant precipitation, totaling 194 mm (7.6 in) over about 12 days, accompanied by relatively high humidity levels at 81%. In stark contrast, February tends to be much cooler, with temperatures dipping as low as -1°C (30°F) and peaking at 19°C (67°F), averaging only 7°C (45°F). The precipitation in February is less abundant at 83 mm (3.2 in) over about 8 days, with lower humidity at 74%. For a more detailed look, you can check Izu weather in February.
In comparing May and March weather, May typically offers warmer temperatures, with minimums around 9°C (48°F) and maximums reaching up to 28°C (82°F), while March is cooler, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 22°C (72°F). Additionally, both months experience similar levels of precipitation, with May seeing 194 mm (7.6 in) over 12 days and March slightly higher at 196 mm (7.7 in) over 13 days. Humidity levels are also higher in May at 81%, compared to March's 70%, making May feel more humid and warm. For a closer look at March weather, you can refer to Izu weather in March.
In comparing the weather of April and May, we see a notable increase in temperature and humidity as spring transitions into early summer. May boasts a minimum temperature of 9°C (48°F) and an average high of 28°C (82°F), significantly warmer than April's minimum of 3°C (38°F) and maximum of 24°C (76°F). April experiences slightly lower precipitation at 168 mm (6.6 in) over 11 days, while May sees increased rainfall of 194 mm (7.6 in) across 12 days, resulting in higher humidity levels in May, which average 81% compared to April's 74%. This shift suggests that while both months are characterized by considerable rainfall, May tends to feel warmer and more humid overall. For more details on April's weather, you can refer to Izu weather in April.
May and June exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 9°C (48°F) to a maximum of 28°C (82°F), with an average of 18°C (65°F). The month sees considerable rainfall, totaling 194 mm (7.6 in) over 12 days, accompanied by a humidity level of 81%. Conversely, June experiences slightly warmer temperatures, with a minimum of 15°C (59°F) and a maximum of 29°C (85°F), averaging 21°C (71°F). However, this month is also wetter, receiving 263 mm (10.3 in) of rain across 17 days and higher humidity at 88%. For a more detailed look at the weather in this region, check out Izu weather in June.
In May, the weather tends to be milder with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 28°C (82°F). The month experiences considerable rainfall, totaling 194 mm (7.6 in) over about 12 days, accompanied by a humidity level of 81%. By contrast, July brings warmer conditions, with average temperatures between 18°C (65°F) and 33°C (92°F). Rainfall is significantly higher at 326 mm (12.8 in) spread across 19 days, and humidity increases to 93%. This shift in weather patterns makes July feel more sultry compared to the more temperate May. For more specific insights, you can check out Izu weather in July.
May and August present contrasting weather patterns, with May experiencing cooler temperatures and higher rainfall. In May, temperatures range from a minimum of 9°C (48°F) to a maximum of 28°C (82°F), with an average of 18°C (65°F), alongside significant precipitation totaling 194 mm (7.6 in) over 12 days and humidity levels at 81%. In contrast, August brings warmer weather, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 34°C (94°F) and an average of 27°C (81°F). Although August sees slightly less rain at 176 mm (6.9 in) over 17 days, the humidity rises to 90%, creating a distinctly muggy atmosphere. For more detailed insights, you can check the Izu weather in August.
May and September present distinct weather patterns, reflecting the transitional phases of spring and early autumn. In May, temperatures range from a cool 9°C (48°F) at night to a comfortable average of 18°C (65°F), peaking at 28°C (82°F) during the day. However, this month also sees significant rainfall, with 194 mm (7.6 in) spread over 12 rainy days and an average humidity of 81%. In contrast, September experiences warmer temperatures, starting at a minimum of 15°C (60°F) and averaging 23°C (74°F), reaching up to 33°C (91°F). Yet, it also brings heavier precipitation, totaling 221 mm (8.7 in) over 20 days, accompanied by slightly higher humidity at 86%. For more detailed insights into the September climate, check out Izu weather in September.
May and October both offer mild temperatures, but October tends to be slightly warmer. In May, temperatures range from a minimum of 9°C (48°F) to a maximum of 28°C (82°F), with an average of 18°C (65°F). In contrast, October’s temperatures are a bit higher, with a minimum of 11°C (52°F) and a maximum reaching 29°C (84°F), averaging 19°C (66°F). However, October also sees increased precipitation, averaging 305 mm (12.0 in) over 16 days compared to May's 194 mm (7.6 in) spread across 12 days. Humidity in both months is relatively high, hovering around 81% in May and slightly higher at 83% in October. For more details, you can check Izu weather in October.
May and November showcase contrasting weather patterns. In May, temperatures range from a minimum of 9°C (48°F) to a maximum of 28°C (82°F), with an average of 18°C (65°F), making it a warmer month overall. Additionally, May experiences higher precipitation at 194 mm (7.6 in) over about 12 days, coupled with a relatively high humidity of 81%. In contrast, November sees cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 22°C (72°F), averaging 14°C (58°F). The month is drier, recording only 94 mm (3.7 in) of precipitation across approximately 10 days, and maintains a similar humidity level at 80%. For more detailed insights into the November weather, you can refer to Izu weather in November.
May and December present a striking contrast in weather conditions. In May, temperatures begin to warm up, with minimums around 9°C (48°F) and maximums reaching 28°C (82°F), making it a pleasant month overall with higher humidity levels at 81%. However, it also sees significant rainfall, totaling 194 mm (7.6 in) across approximately 12 days. In contrast, December ushers in cooler temperatures, with averages sitting at 9°C (49°F), peaking at 21°C (69°F) and dropping to a chilly 0°C (32°F) at night. Notably, it experiences much less rain, with only 74 mm (2.9 in) across 8 days, and a slightly lower humidity of 78%. For more details about December weather, visit Izu weather in December.
As May arrives in Izu, it brings a delightful transition into warmer weather, with temperatures rising compared to the earlier months. The average warmth of 18°C (65°F) sets the stage for the onset of spring, inviting outdoor activities amidst blooming nature. However, don't forget your umbrella, as May sees an increase in precipitation, with about 194 mm falling over approximately 12 days. The 81% humidity adds a tropical touch, making the lush landscapes even more vibrant. Compared to the cooler and drier months that precede it, May emerges as a significant shift toward a lush, humid season, creating an ideal backdrop for exploration and relaxation. For a deeper dive into what you can expect throughout the year, check out the Izu Climate page.