May Weather in Konan, Japan

Last updated: August 21, 2025

In Konan, Japan, May ushers in a delightful blend of vibrant weather patterns, characterized by a maximum temperature reaching 32°C (90°F) and a cozy average of 19°C (67°F). The month brings a splash of rain, accumulating 196 mm (7.7 in) over 11 days, contributing to the region's lush greenery. With a substantial humidity of 83%, the air feels pleasantly warm, creating an inviting atmosphere for both locals and visitors. Whether you're exploring the natural beauty or engaging in cultural activities, May in Konan offers a refreshing escape that beautifully balances warmth and moisture.

May Temperature in Konan

In May, Konan, Japan, experiences a delightful transition into warmth, with temperatures showcasing a marked increase compared to the preceding months. The minimum temperature rises to a comfortable 5°C (42°F), while the average reaches a pleasant 19°C (67°F), allowing residents and visitors alike to enjoy the outdoors. The daytime can get quite warm, as the maximum temperature hits 32°C (90°F), creating perfect conditions for spring activities. This month decidedly shifts away from the lingering chill of winter, demonstrating a steady ascent towards the summer warmth that follows in June, highlighting May's role as a pivotal gateway to the sunnier seasons ahead.

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

The chart illustrates May temperature patterns in Konan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Konan, 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).
JanFebMarAprMayJunJulAugSepOctNovDec414250586773808476665545
Data source: Temperature data for Konan 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 Konan

In May, Konan experiences a notable uptick in precipitation, with 196 mm (7.7 in) of rainfall occurring over 11 days. This increase follows the gradual rise observed from April, where 163 mm fell across 10 days, heralding the onset of the wetter months ahead. As spring gives way to early summer, the consistent rainfall not only enriches the region's lush landscapes but also sets the stage for the more intense downpours that July and August will bring, characterized by their significant totals of 384 mm and 253 mm, respectively. This pattern underscores a trend of increasing rainfall as the year progresses, culminating in the rainy season's peak during the height of summer.

May Precipitation Trends in Konan

The chart displays monthly precipitation patterns in Konan, 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 Konan, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec52591511631961963842532252466168
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Konan

In May, humidity in Konan, Japan experiences a notable uptick, rising to 83%, which is consistent with the region’s trend of increased moisture during the spring months. Following a slightly lower humidity level of 76% in April, May marks a shift towards the more humid conditions that dominate the approaching summer. As the season transitions, Konan prepares for even higher humidity levels, with June set to reach 87%, illustrating a clear progression from the milder, cooler months into a more tropical climate. This rise in humidity not only impacts the local weather but also reflects the environmental transformation that characterizes the late spring period in this picturesque part of Japan.

May Average Humidity in Konan

This chart illustrates the average monthly humidity levels in Konan, 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 Konan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%74%76%83%87%93%91%87%85%83%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Konan

As spring transitions into summer in Konan, Japan, the UV Index reaches a peak in May, reflecting an extreme exposure category with a sharp rise to 11. This significant increase dramatically reduces the safe burn time to just 10 minutes, emphasizing the necessity for sun protection. Following a gradual ascent from a moderate UV Index of 4 in January to the very high range by April, May signals the start of a period where UV precautions become critical. Visitors and residents alike should be aware that the trend of intense solar radiation continues into June, July, and August, with sustained values of 11. For further insights on UV safety and the complete forecast, check out Konan UV Index.

Maximum UV Index Levels in Konan for May

The chart shows the monthly maximum UV Index (UVI) for Konan 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 Konan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110753
Data source: Konan 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 Konan

May brings radiant sunshine to Konan, Japan, with an impressive 290 hours of sunlight, marking a delightful peak as spring transitions into summer. This month showcases a steady increase in sunshine hours, following April's 276 hours, and is part of a broader trend of growing daylight as the year progresses. Interestingly, the warm days of late spring lead seamlessly into the sunny embrace of August, which boasts the most sunlight at 300 hours. After May, however, there’s a gradual decline, with June still holding onto a substantial 270 hours. The fluctuations in sunlight throughout the year illustrate the changing seasons, making May a particularly vibrant time for outdoor activities and enjoying nature's beauty in Konan.

Monthly Sunshine Duration in Konan: May Highlighted

The May sunshine duration represents the total number of hours Konan 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.
JanFebMarAprMayJunJulAugSepOctNovDec185h231h265h276h290h270h256h300h244h234h239h223h
Data source: Konan May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Konan During May

In Konan, Japan, the likelihood of enjoying sunny weather takes a notable dip in May with only a 26% chance of sunshine, making it one of the cloudier months compared to the rest of the year. This trend contrasts sharply with April, which holds a slight edge at 48%. As we transition from spring to early summer, the probabilities of sunny days continue to decrease, highlighting May as a peak time for overcast skies. Interestingly, as the calendar year progresses into autumn, the likelihood of sunshine rebounds significantly, with October and November showcasing a much sunnier disposition. Therefore, while May may not be the ideal month for sun-seekers, it serves as a reminder of the shifting weather patterns that characterize the seasons in this part of Japan.

Percentage of Sunny Days in May in Konan

The chart illustrates the percentage of sunny days in Konan 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 Konan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec50%50%44%48%26%23%31%27%29%56%59%53%
Data source: Konan May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Konan in May

As the seasons change in Konan, Japan, the length of daylight gradually increases, bringing more sunshine and warmth to the region. Starting from a modest 10 hours in January and February, daylight begins to extend as spring unfolds; March sees an increase to 11 hours, followed by a significant leap to 13 hours in April. The peak of this progression occurs in May, where residents enjoy an impressive 14 hours of daylight, a trend that continues through June and July, maintaining the same sunny duration. As summer wanes, daylight slightly diminishes in August to 13 hours, before tapering off gently in the fall, with 12 hours in September and 11 hours by October. The descent continues into the winter months, concluding with around 9 hours of daylight in December. This rhythmic ebb and flow of sunlight not only marks the passage of time but also enhances the vibrant seasonal shifts that characterize life in Konan.

Average Daylight Hours in Konan for May

The chart illustrates the variation in daylight duration in Konan throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 3m10h 53m11h 58m13h 4m14h14h 28m14h 14m13h 25m12h 22m11h 16m10h 18m9h 48m
Data source: Konan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Konan

In Konan, Japan, the winds of May offer a gentle respite, with an average speed of 2.5 m/s (6 mph)—a slight dip from the more robust conditions of April, which also recorded 3.0 m/s (7 mph). This trend reflects a seasonal shift, as the transition from spring to early summer often brings about calmer breezes. The wind speeds in May are generally consistent with those of January and December, suggesting a stable pattern throughout these months. As the year unfolds, wind speeds continue to decrease, hitting their lowest point in July at 1.6 m/s (4 mph), before gradually rising again in the fall. This rhythmic ebb and flow of May's winds invites residents and visitors alike to enjoy the mild spring air before the summer stillness takes hold.

Average May Wind Speed in Konan

The chart displays monthly wind speed patterns in Konan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.62.93.03.02.5 m/s2.11.62.31.72.22.22.5
Data source: Konan May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Konan Compares to Other Months

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

May and January showcase strikingly different weather patterns. In May, temperatures rise significantly, ranging from a minimum of 5°C (42°F) to a warm maximum of 32°C (90°F), with an average temperature of 19°C (67°F). Conversely, January experiences much colder conditions, with temperatures dipping to a chilling minimum of -5°C (23°F) and peaking at 18°C (64°F), averaging just 5°C (41°F). Furthermore, May sees higher precipitation, totaling 196 mm (7.7 in) over 11 days, while January has only 52 mm (2.0 in) across 7 days. Humidity levels are quite similar, with May at 83% and January slightly lower at 82%. For more detailed insights into January weather, you can check Konan weather in January.

May and February present a stark contrast in 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 sees significant precipitation, totaling 196 mm (7.7 in) over 11 days, and a high humidity level of 83%. In contrast, February experiences much cooler temperatures, with a minimum of -5°C (24°F), an average of 6°C (42°F), and a maximum of 22°C (71°F). Precipitation is also lower, at 59 mm (2.3 in) over just 6 days, and humidity is slightly less at 79%. For more insights into the February weather, check out Konan weather in February.

The weather in May contrasts significantly with that of March, showcasing a notable increase in temperatures and humidity levels. While March experiences minimum temperatures dipping to -1°C (30°F) and an average of 10°C (50°F), May boasts a much warmer minimum of 5°C (42°F) and an average temperature soaring to 19°C (67°F). The maximum temperatures also rise considerably; March reaches up to 25°C (77°F), whereas May can peak at an impressive 32°C (90°F). In terms of precipitation, May records 196 mm (7.7 in) over 11 days, slightly surpassing March's 151 mm (6.0 in) across the same number of days. Additionally, May's increased humidity level of 83% compared to March's 74% adds to the overall warmth and mugginess of the month. For more specific details about March weather, you can visit Konan weather in March.

In comparing the weather of May and April, we can see distinct differences in temperature and precipitation patterns. May experiences warmer temperatures, with a minimum of 5°C and an average of 19°C, reaching a maximum of 32°C. In contrast, April has cooler conditions, with a minimum of -1°C and an average of 14°C, peaking at 29°C. Additionally, May sees higher precipitation levels, totaling 196 mm over 11 days, compared to April's 163 mm over 10 days. The humidity in May is also higher at 83%, while April remains at 76%. For more details, you can refer to Konan weather in April.

May and June exhibit notable differences in weather patterns, with June generally being warmer and slightly more humid. In May, temperatures range from a minimum of 5°C (42°F) to a maximum of 32°C (90°F), averaging around 19°C (67°F). The month experiences a total of 196 mm (7.7 in) of precipitation over 11 days and maintains a humidity level of 83%. In contrast, June sees a minimum temperature of 12°C (54°F), an average of 23°C (74°F), and a peak of 33°C (91°F), while also receiving the same amount of 196 mm (7.7 in) of precipitation but over 14 days, accompanied by a higher humidity rate of 87%. For more detailed insights, visit Konan weather in June.

May and July exhibit considerable differences in weather patterns. In May, temperatures range from a cool minimum of 5°C (42°F) to a pleasant average of 19°C (67°F), peaking at a maximum of 32°C (90°F). Precipitation during this month averages 196 mm (7.7 in) over approximately 11 days, with a relative humidity of 83%. In contrast, July sees a significant shift, with minimum temperatures rising to 20°C (67°F) and average temperatures reaching 27°C (81°F), while maximum highs can hit 38°C (101°F). Rainfall increases dramatically to 384 mm (15.1 in) across 23 days, accompanied by elevated humidity levels of 93%. For a detailed look at July weather specifically, you can check this link: Konan weather in July.

May and August present quite different weather conditions. In May, temperatures range from a cooler minimum of 5°C (42°F) to an average of 19°C (67°F), peaking at a maximum of 32°C (90°F). This month experiences about 196 mm (7.7 in) of precipitation over 11 days, with humidity levels around 83%. In contrast, August brings much warmer temperatures, with a minimum of 19°C (67°F), an average of 29°C (84°F), and a maximum reaching a sweltering 38°C (100°F). The month sees an increase in rainfall, totaling 253 mm (10.0 in) over 16 days, and slightly higher humidity at 91%. For more detailed information on August weather, visit Konan weather in August.

May and September exhibit notable differences in 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 sees significant precipitation, totaling 196 mm (7.7 in) over 11 days, while the humidity level is relatively high at 83%. In contrast, September experiences warmer temperatures, with a minimum of 12°C (54°F) and a maximum of 37°C (98°F), averaging 25°C (76°F). This month also has increased precipitation, reaching 225 mm (8.9 in) over 16 days, and slightly higher humidity at 87%. For more details on September weather, you can visit Konan weather in September.

May and October exhibit similar average temperatures, both hovering around 19°C (67°F), with May offering slightly warmer days that can peak at 32°C (90°F). However, October tends to have a higher minimum temperature, starting at 7°C (44°F) compared to May's 5°C (42°F). Precipitation is more prevalent in October, with 246 mm (9.7 in) of rain over 14 days, in contrast to May's 196 mm (7.7 in) over 11 days. This slight increase in humidity is also notable, with October averaging 85% compared to May's 83%. For a detailed look at October weather specifics, you can check Konan weather in October.

May and November present quite contrasting weather conditions. In May, temperatures range from a cool 5°C (42°F) at night to a warm 32°C (90°F) during the day, with an average of 19°C (67°F). This month experiences significant rainfall, with 196 mm (7.7 in) of precipitation spread over approximately 11 days, maintaining a high humidity level of 83%. In contrast, November sees cooler temperatures, with a minimum of 1°C (33°F) and a maximum of 24°C (76°F), averaging 13°C (55°F). Rainfall is considerably less, totaling 61 mm (2.4 in) over just 5 days, yet the humidity remains the same at 83%. For more specific insights into November's climate, check Konan weather in November.

May and December present stark contrasts in weather. 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 high humidity at 83%. However, the month also sees considerable rainfall, with 196 mm (7.7 in) of precipitation over 11 days. In contrast, December experiences much cooler conditions, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 20°C (68°F), averaging just 7°C (45°F). The precipitation in December is also lower, totaling 68 mm (2.7 in) over 7 days, but maintains the same humidity level of 83%. For a closer look at December's weather specifics, you can check Konan weather in December.

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Conclusion: What to Expect From May Weather in Konan

As May rolls into Konan, the weather transforms into a delightful mix of warmth and humidity, marking a significant departure from the cooler months. With temperatures rising to an inviting maximum of 32°C (90°F), the atmosphere feels vibrant and alive, contrasting sharply with the chilly air of earlier spring. While the average settles at a comfortable 19°C (67°F), the occasional cool nights remind us of the season's transition. Rainfall becomes more frequent, with about 11 days of precipitation contributing to the lush landscapes, but the heightened 83% humidity gives the air a refreshing quality that's perfect for outdoor activities. To learn more about the weather patterns throughout the year, explore Konan Climate.