May Weather in Kumano, Japan

Last updated: August 21, 2025

May in Kumano, Japan is a month of vibrant contrasts, where the weather shifts from cool to warm with ease. Expect a maximum temperature of 28°C (83°F) paired with an average of 18°C (64°F), offering a pleasant climate for outdoor exploration. Temperatures can dip to a refreshing minimum of 6°C (44°F), especially during early mornings and late evenings. The region sees about 222 mm (8.7 in) of precipitation spread over 13 days, creating a lush landscape and a humid atmosphere that averages 82% humidity. This combination of warm days, cooler nights, and intermittent rain makes May an enchanting time to experience the natural beauty of Kumano.

May Temperature in Kumano

In Kumano, Japan, the month of May heralds a delightful transition into warmer weather, as temperatures begin to rise after the cooler spring months. With minimums around 6°C (44°F) and averages reaching 18°C (64°F), the city bursts with life as days warm up significantly, culminating in maximums peaking at 28°C (83°F). This month stands out for its inviting climate, showcasing a marked increase from April, where highs only touched 24°C (75°F). Nature awakens in full color, making May an ideal time for outdoor exploration and appreciating the stunning landscapes that Kumano offers. As summer approaches, the warming trend instills a sense of vibrancy, setting the stage for the lush beauty of the season ahead.

May Weather in Kumano: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Kumano, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kumano, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec404149566469767973645444
Data source: Temperature data for Kumano generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Kumano

May marks a significant uptick in precipitation in Kumano, Japan, with 222 mm (8.7 in) of rainfall spread over 13 days. This quantity reflects a remarkable increase from the previous months, particularly when compared to April, which recorded 164 mm (6.4 in) over the same number of days. As spring transitions into summer, May becomes one of the wetter months, setting the stage for even heavier rains in June, which averages 293 mm (11.6 in). The trend reveals that as the year progresses, Kumano experiences a burgeoning increase in both rainfall and rainy days, peaking in the sweltering summer months. This pattern underscores the region’s lush greenery, as the abundant precipitation supports a vibrant ecosystem.

May Precipitation Trends in Kumano

The chart displays monthly precipitation patterns in Kumano, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Kumano, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec81901831642222943903103764727584
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Kumano

May marks a significant rise in humidity levels in Kumano, Japan, with the figure reaching 82%. This increase is part of a broader trend, as the region sees a gradual ascent in humidity from the cooler months, starting at 72% in January. As spring transitions to summer, there’s a noticeable shift; April's humidity climbs to 75%, setting the stage for May's notably higher levels. This pattern continues into June and July, where humidity peaks at 87% and 92%, respectively, creating a distinctive, muggy environment. As the warm season unfolds, the consistent rise in humidity reflects Kumano's unique climatic character, offering insights into the region's lush and vibrant atmosphere during this time of year.

May Average Humidity in Kumano

This chart illustrates the average monthly humidity levels in Kumano, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Kumano is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%69%69%75%82%87%92%86%82%79%76%74%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Kumano

As May rolls in, Kumano, Japan, experiences a continuation of its extreme UV Index, matching the previous month's reading at 11. With a burn time of just 10 minutes, residents and visitors alike should exercise heightened caution when outdoors. This trend of increasing UV exposure is stark when looking back at earlier months; since January's moderate Index of 4, there's been a significant escalation in intensity. April and May mark the peak of UV exposure before summer officially arrives, with June, July, and August maintaining an even higher level at 12. As this trend suggests, protection against harmful rays is essential. For more insights, visit Kumano UV Index.

Maximum UV Index Levels in Kumano for May

The chart shows the monthly maximum UV Index (UVI) for Kumano in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Kumano typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111112121210764
Data source: Kumano May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Kumano

As May unfolds in Kumano, Japan, residents and visitors can bask in an impressive 288 hours of sunshine, marking a delightful peak in the region's radiant spring season. This month showcases a steady rise in daylight that started with 192 hours in January and steadily climbed through the early months, indicating that as winter recedes, sunny days flourish. Following April’s 279 hours, May not only reinforces this upward trend but also heralds the approach of summer, where sunshine further intensifies. The brightness of May beautifully contrasts with the slightly lower daylight hours of June and July, each at 262 hours, hinting at a seasonal ebb in sunshine but still offering plenty of bright days for exploration. Overall, May stands out as a vibrant time when Kumano awakens under clear skies, inviting all to enjoy its natural beauty.

Monthly Sunshine Duration in Kumano: May Highlighted

The May sunshine duration represents the total number of hours Kumano experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec192h236h268h279h288h262h262h311h246h232h240h232h
Data source: Kumano May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kumano During May

May in Kumano, Japan, sees a notable decline in the likelihood of sunny weather, with only a 28% chance of clear skies. This reduction follows a trend observed from the preceding months, where April and March both had 43% and 43% chances, which hints at a somewhat cloudier transition into late spring. In contrast, May's low percentage signals an increasing tendency towards overcast days, particularly as the region gears up for the summer months, where the chance of sunshine plummets even further to 19% in June. This pattern highlights the early signs of the rainy season that typically sets in soon after, making May a less favorable month for sun-seekers compared to the brighter days of prior spring months.

Percentage of Sunny Days in May in Kumano

The chart illustrates the percentage of sunny days in Kumano throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Kumano experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec50%54%43%43%28%20%27%24%20%48%54%63%
Data source: Kumano May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kumano in May

In Kumano, Japan, the progression of daylight duration throughout the year reveals fascinating seasonal trends. Beginning in January and February with a consistent 10 hours of daylight, the days gradually grow longer as spring approaches. By March, daylight increases to 11 hours, and in April, a noticeable leap occurs with 13 hours of sunlight, setting the stage for the vibrant month of May, which maintains this daylight duration. As summer unfolds in June and July, daylight peaks at 14 hours, offering ample time for outdoor exploration and enjoyment of nature. However, the gradual descent begins in August, with daylight retreating back to 13 hours. Autumn signals a further reduction, bringing daylight down to 12 hours in September and continuing the trend through October and into the shorter days of November and December. This rhythmic cycle not only marks the changing seasons but also invites residents and visitors to appreciate the beauty of Kumano's natural environment throughout the year.

Average Daylight Hours in Kumano for May

The chart illustrates the variation in daylight duration in Kumano throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 9m10h 57m11h 58m13h 1m13h 54m14h 21m14h 8m13h 21m12h 21m11h 18m10h 23m9h 55m
Data source: Kumano daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Kumano

In Kumano, Japan, the breezy charm of May presents a gentle shift in the seasonal wind patterns. As spring unfolds, the average wind speed dips to 2.5 m/s (6 mph), just a notch below the earlier months, suggesting a serene atmosphere perfect for enjoying the lush landscapes. This slight decrease follows a pattern of consistent 3.1 m/s in January and 3.2 m/s in February, emphasizing a gradual transition towards the summery calm of June, where winds further soften to 1.9 m/s (4 mph). As May wraps up, the region's winds create an inviting backdrop for outdoor adventures, highlighting the tranquil beauty that Kumano is known for during this picturesque time of year.

Average May Wind Speed in Kumano

The chart displays monthly wind speed patterns in Kumano, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.22.82.82.5 m/s1.92.12.62.32.32.63.2
Data source: Kumano May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Kumano Compares to Other Months

Weather in Kumano varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Kumano, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing the weather of May and January, a stark contrast emerges. May boasts milder temperatures, ranging from a minimum of 6°C (44°F) to a comfortable maximum of 28°C (83°F), with an average of 18°C (64°F). However, this month is also characterized by higher humidity at 82% and considerable rainfall, accumulating 222 mm (8.7 in) over approximately 13 days. In contrast, January presents much cooler conditions, with temperatures dipping to a minimum of -6°C (22°F) and peaking at 15°C (60°F), averaging only 4°C (40°F). Although January experiences less rainfall, with 81 mm (3.2 in) spread over just 6 days, its lower humidity of 72% adds to the crispness of the winter air. For more specific details about January weather, you can check Kumano weather in January.

May and February exhibit stark contrasts in weather, highlighting the transition from winter to spring. In February, temperatures range from a chilly -5°C (23°F) at night to a mild 19°C (66°F) during the day, averaging around 5°C (41°F). The month experiences limited precipitation of 90 mm (3.5 in) over 7 days, accompanied by a lower humidity of 69%. In contrast, May warms up significantly, with minimum temperatures at 6°C (44°F) and maximums soaring to 28°C (83°F), averaging 18°C (64°F). This month is also wetter, receiving 222 mm (8.7 in) of rain on 13 days, accompanied by higher humidity levels at 82%. For more detailed insights into February weather, check out Kumano weather in February.

In comparing the weather between March and May, it's evident that May brings significantly warmer temperatures, with an average high of 28°C (83°F) compared to March's average high of 22°C (72°F). March sees lower minimum temperatures, dipping to around 0°C (31°F), whereas May rarely falls below 6°C (44°F). Additionally, May experiences higher precipitation, with 222 mm (8.7 in) over 13 days, compared to 183 mm (7.2 in) across 11 days in March. The humidity also rises noticeably in May at 82%, compared to 69% in March, contributing to the more tropical feel of late spring. For a closer look at March weather in Kumano, you can visit Kumano weather in March.

In comparing the weather between April and May, we notice a significant rise in temperatures as May experiences a minimum of 6°C (44°F) and an average high of 28°C (83°F), contrasting with April's cooler conditions, which range from a minimum of 1°C (33°F) to a maximum of 24°C (75°F). Additionally, May records higher precipitation, with 222 mm (8.7 in) over 13 days, compared to April’s 164 mm (6.4 in) across 11 days, indicating a trend toward wetter conditions as spring progresses. Humidity levels also see an increase in May, averaging 82%, compared to April’s 75%. For a more detailed overview, you can refer to Kumano weather in April.

In comparing the weather between May and June, we see a noticeable shift towards warmer temperatures and increased humidity. May temperatures range from a minimum of 6°C (44°F) to a maximum of 28°C (83°F), with an average of 18°C (64°F). However, June sees a rise in temperatures, with a minimum of 11°C (53°F) and a maximum of 30°C (86°F), resulting in a comfortable average of 21°C (69°F).

Precipitation also increases from 222 mm (8.7 in) over 13 days in May to 293 mm (11.6 in) across 18 days in June, contributing to a slightly higher humidity level of 87% compared to May's 82%. For more details on the weather conditions during this month, you can visit Kumano weather in June.

May and July exhibit distinct differences in weather patterns. In May, temperatures range from a cool minimum of 6°C (44°F) to a pleasant average of 18°C (64°F), peaking at 28°C (83°F). However, it also sees significant rainfall, accumulating 222 mm (8.7 in) over 13 days, with humidity averaging 82%. In contrast, July experiences warmer temperatures, with a minimum of 18°C (65°F), an average of 25°C (76°F), and a maximum that reaches 34°C (94°F). The month is characterized by even higher rainfall, with 390 mm (15.3 in) spread over 23 days, and humidity levels also rise to 92%. For more detailed information on the weather in July, visit Kumano weather in July.

May and August showcase distinctly different weather patterns. In May, temperatures range from a minimum of 6°C (44°F) to a maximum of 28°C (83°F), with an average of 18°C (64°F). The month experiences significant precipitation, totaling 222 mm (8.7 in) over 13 days, and the humidity hovers around a high 82%. In contrast, August offers much warmer conditions, with temperatures ranging from a minimum of 19°C (67°F) to a scorching maximum of 35°C (95°F), averaging 26°C (79°F). Precipitation increases to 310 mm (12.2 in) over 18 days, and humidity rises slightly to 86%. For more details on the weather in August, check out Kumano weather in August.

May and September present notable differences in weather patterns. In May, temperatures range from a cool 6°C (44°F) at night to a comfortable 28°C (83°F) during the day, with an average of 18°C (64°F). However, it experiences significant rainfall, totaling 222 mm (8.7 in) over 13 days. In contrast, September boasts milder nights with a minimum temperature of 14°C (58°F) and warmer days peaking at 32°C (90°F), averaging 23°C (73°F). The month is wetter still, with rainfall reaching 376 mm (14.8 in) over 22 days. Both months maintain a high humidity level of 82%, contributing to a tropical feel. For more detailed information on weather trends, check out Kumano weather in September.

May and October share similar average temperatures, both hovering around 18°C (64°F), but the overall climate experience differs significantly. In May, temperatures range from a minimum of 6°C (44°F) to a maximum of 28°C (83°F) with 222 mm (8.7 in) of precipitation over about 13 days. In contrast, October sees only a slight increase in the minimum temperature to 7°C (45°F), while reaching a similar maximum of 28°C (84°F). However, October is notably wetter, with precipitation soaring to 471 mm (18.6 in) over 16 days. Additionally, October's humidity is slightly lower at 79%, compared to May’s 82%. For more detailed insights on October weather, you can visit Kumano weather in October.

In May, the weather is generally warm and pleasant, with average temperatures ranging from a mild 18°C (64°F) to a maximum of 28°C (83°F). However, it also sees significant rainfall, with precipitation totaling 222 mm (8.7 in) spread over about 13 days, resulting in a high humidity of 82%. In contrast, November brings cooler conditions, with average temperatures dropping to around 12°C (55°F) and a maximum of 21°C (70°F). The rainfall decreases substantially to 75 mm (3.0 in) over just 8 days, and humidity is lower at 75%. For more details, you can check out Kumano weather in November.

May and December present contrasting weather patterns, with May showcasing a much warmer climate. In May, temperatures range from a minimum of 6°C (44°F) to a maximum of 28°C (83°F), with an average of 18°C (64°F). This month also sees considerable rainfall, totaling 222 mm (8.7 in) over 13 days, coupled with a high humidity level of 82%. In stark contrast, December experiences cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 19°C (67°F), resulting in an average temperature of 7°C (45°F). Precipitation is significantly lower at 84 mm (3.3 in) across 7 days, and humidity drops to 74%. For more details on December weather, you can check Kumano weather in December.

Compare Kumano's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Kumano

As May unfolds in Kumano, it brings a delightful shift in weather, characterized by mild temperatures and the lush vibrancy of spring. While daytime highs strive to reach around 28°C (83°F), the evenings remain refreshing, encouraging outdoor exploration. This month also sees an increase in humidity and a notable amount of rainfall, with 222 mm (8.7 in) spread across about 13 days, creating a rich tapestry of blooming flora. Compared to the cooler months that precede it, May serves as a gentle reminder of the warm, inviting summer to come. Embrace the beauty of this transitional month and discover more about the climate in Kumano at Kumano Climate.