Last updated: August 21, 2025
In May, Itoigawa, Japan experiences a delightful transition into warmer weather, with maximum temperatures reaching 26°C (79°F) and an average of 15°C (59°F). The month, however, is characterized by a fair amount of precipitation, totaling 138 mm (5.4 in) over 15 days, contributing to an 81% humidity level that envelops the region. This mix of mild warmth and moisture creates a lush, vibrant landscape, making it a picturesque time for nature lovers and outdoor enthusiasts alike.
In May, Itoigawa experiences a delightful transition into warmer weather, with temperatures reflecting the heart of spring. The minimum temperature rises to a comfortable 6°C (42°F), while the average reaches a pleasant 15°C (59°F), making it an inviting time for outdoor activities. With a maximum temperature peaking at 26°C (79°F), the days become increasingly warm and enjoyable, perfect for exploring the scenic landscapes. This upward trend in temperatures from April's lingering chill is a joyful harbinger of summer, offering a refreshing atmosphere that's both vibrant and rejuvenating. As the region shifts from the coolness of winter, May stands out as a month of blossoming warmth and renewal.
In May, Itoigawa experiences a moderate decline in precipitation, with 138 mm (5.4 in) of rainfall recorded over 15 days. This marks a notable drop from the heavier rainfall typical of earlier months, particularly January and February. The trend suggests a gradual easing into summer as temperatures rise and the landscape begins to bloom. While May's precipitation is less intense than that of the spring months, it still plays a critical role in nurturing the lush greenery that characterizes the region. As the month progresses towards June, the precipitation begins to pick up again, hinting at the impending arrival of the summer season and its associated rain showers.
In May, Itoigawa experiences a relative humidity of 81%, closely mirroring the conditions of the preceding month. This level is indicative of the gradual transition into the summer months, where humidity begins to rise significantly. Following May, June sees a noticeable jump to 88%, marking the onset of a humid season that persists into the summer with July and August reporting peaks of 92%. Overall, the data suggests a pattern where humidity levels steadily decrease from January through April, before rebounding as warm weather approaches, creating a humid environment characteristic of the region's vibrant summer months.
As May arrives in Itoigawa, Japan, the UV Index peaks at a striking 10, categorizing the sun exposure as very high. This rise continues the trend established in April, where the Index was already significant at 9, indicating a notable increase in sun intensity during spring. With a burn time of just 15 minutes, it's essential for residents and visitors to take precautionary steps against overexposure. In fact, May marks the transition into a season of high UV exposure that persists into June, which also holds a UV Index of 10. As summer approaches, understanding these shifts is vital for sun safety. For more detailed information, visit the Itoigawa UV Index.
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May brings a delightful surge of sunshine to Itoigawa, Japan, boasting an impressive 303 hours of bright days. This spring month stands out as a peak in the sunshine chart, following a steady increase from January's 148 hours. As winter gives way to the warmth of spring, each month leads up to May’s luminous heights, with April shining at 280 hours and March at 259 hours. Interestingly, even as summer approaches, June settles back slightly with 297 hours, exemplifying the unique climatic rhythm of the region. Overall, from the beginning of the year to May, there is a clear trend of increasing sunlight, inviting residents and visitors alike to bask in the beauty of this vibrant season.
In Itoigawa, Japan, the likelihood of sunny weather in May sits at a moderate 30%, slightly lower than the sunny spells experienced in April at 45%. This month marks a transition, as the warmer weather begins to emerge, yet it can still be quite variable. Interestingly, as we move towards the summer months, the chances of sunlight fluctuate, with June seeing a further dip to 28% before gradually climbing again in July to 36%. Overall, while May may not boast the highest likelihood of sunshine, it does reflect a general upward trend leading into the sunnier summer season, making it a pleasant and promising time in Itoigawa for outdoor activities.
As spring blooms into summer in Itoigawa, Japan, daylight duration experiences a remarkable transformation. Starting in January with just 9 hours of daylight, the days gradually lengthen, adding another hour by February. By March, sunlight stretches to 11 hours, and April welcomes even more light with 13 hours. Notably, May and June stand out as the pinnacle of daylight at a generous 14 hours, creating perfect conditions for outdoor activities and appreciation of nature’s beauty. As summer begins to fade, daylight begins its gradual retreat, with July and August still boasting 14 hours, before tapering down to 13 hours in August and eventually decreasing through the fall months, landing back at 9 hours by December. This rhythm of daylight not only marks the changing seasons but also offers a beautiful connection to the cyclical nature of life in Itoigawa.
May in Itoigawa, Japan, experiences a gentle breath of wind, averaging 2.7 m/s (6 mph). While it marks a slight increase from the calmer conditions of April, which also recorded 2.5 m/s, it fits into a broader trend of diminishing wind speeds as the spring months give way to summer. The peak winds occur toward the start of the year, with January and February reaching 3.4 m/s and 3.9 m/s, respectively, while the summer months see a notable decline, settling around 1.6 m/s in July and August. This transition invites a sense of tranquility, allowing residents and visitors alike to enjoy the comforting embrace of spring's softer breezes before the stillness of summer fully takes hold.
Weather in Itoigawa varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Itoigawa, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present markedly contrasting weather patterns. In May, temperatures range from a minimum of 6°C (42°F) to a pleasant average of 15°C (59°F) and can peak at 26°C (79°F), creating a comfortable atmosphere for outdoor activities. However, this month experiences a significant amount of rainfall, with 138 mm (5.4 in) distributed over 15 days and humidity levels at 81%. In stark contrast, January is much colder, with temperatures dropping to a minimum of -5°C (23°F) and an average of only 2°C (35°F), peaking at 11°C (53°F). This month sees even more precipitation, totaling 263 mm (10.4 in) over 23 days, accompanied by higher humidity at 88%. For more specific information about January weather, you can visit Itoigawa weather in January.
Comparing the weather in May and February reveals notable differences in temperature and precipitation. May experiences milder conditions with a minimum temperature of 6°C (42°F) and an average of 15°C (59°F), reaching a maximum of 26°C (79°F). In contrast, February is much colder, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 12°C (54°F) and an average of just 2°C (35°F). Additionally, May sees less precipitation, totaling 138 mm (5.4 in) over approximately 15 days, while February is wetter, with 235 mm (9.2 in) across 22 days. Despite February's increased precipitation, it also has higher humidity at 86%, compared to May's 81%. For more details on February weather, check out Itoigawa weather in February.
When comparing the weather in May and March, it's evident that May offers more pleasant temperatures, with a minimum of 6°C (42°F) and an average of 15°C (59°F), while March sees considerably colder temperatures, with a minimum of -4°C (24°F) and an average of only 5°C (41°F). May also enjoys a higher maximum temperature of 26°C (79°F), compared to March's maximum of 16°C (61°F). Interestingly, both months experience similar humidity levels at 81%, but March tends to have more precipitation, accumulating 175 mm (6.9 in) over 18 days, contrasted with May's 138 mm (5.4 in) spread over 15 days. For more details on March weather in Itoigawa, you can visit Itoigawa weather in March.
In comparison, May typically brings milder weather than April, with average temperatures rising from a cool 9°C (49°F) in April to a comfortable 15°C (59°F) in May. April still experiences colder nights, with minimum temperatures dipping down to -1°C (31°F), while May’s minimum temperature is a much warmer 6°C (42°F). Although both months see precipitation on 15 days, May experiences slightly less rainfall overall, with 138 mm (5.4 in) compared to April's higher total of 174 mm (6.9 in). Humidity levels remain relatively high in both months, with May at 81% and April at 78%. For a detailed overview of April weather specifics, you can check out Itoigawa weather in April.
May and June both see comfortably warm temperatures, with daily highs in June slightly outpacing May, often reaching up to 26°C (80°F), while May peaks at 26°C (79°F). However, May begins with cooler nights, with a minimum temperature of 6°C (42°F) compared to June's milder lows of 10°C (51°F). Precipitation is relatively high in both months, with June experiencing a slight increase to 168 mm (6.6 in), contrasted with May's 138 mm (5.4 in), although June has one less rainy day. Humidity also climbs in June to 88%, up from 81% in May, contributing to a more humid atmosphere. For more specific details on June weather, visit Itoigawa weather in June.
May and July present distinctly different weather patterns. In May, temperatures range from a cooler 6°C (42°F) at night to a comfortable 26°C (79°F) during the day, with an average temperature of 15°C (59°F). However, this month is also characterized by significant rainfall, totaling 138 mm (5.4 inches) over about 15 days, accompanied by high humidity at 81%. In contrast, July experiences warmer conditions, with nighttime lows of 18°C (64°F) and daytime highs reaching up to 34°C (94°F), averaging 24°C (75°F). Rainfall is more pronounced in July, accumulating to 347 mm (13.7 inches) over 23 days, and humidity levels rise to 92%. For more detailed insights, you can explore Itoigawa weather in July.
When comparing the weather in May and August, we notice significant differences in temperature and precipitation. May features a more moderate temperature range, with a minimum of 6°C (42°F) and an average of 15°C (59°F), peaking at 26°C (79°F). In contrast, August experiences much warmer conditions, with a minimum temperature of 18°C (64°F) and an average of 26°C (78°F), reaching a maximum of 33°C (91°F). Additionally, August is characterized by increased rainfall, totaling 265 mm (10.4 in) over 20 days, compared to May's 138 mm (5.4 in) over 15 days. The humidity is also higher in August at 92%, compared to May's 81%. For more detailed information on August weather, check out Itoigawa weather in August.
In May, temperatures start to warm up, with minimums around 6°C (42°F) and maximums peaking at 26°C (79°F), resulting in an average of 15°C (59°F). This month experiences 138 mm (5.4 in) of precipitation over approximately 15 days, along with relatively high humidity at 81%. In contrast, September sees a noticeable increase in warmth, with minimum temperatures at 13°C (56°F) and maximums reaching 32°C (90°F), averaging 22°C (72°F). However, it brings even more rainfall, totaling 265 mm (10.4 in) spread over 21 days, accompanied by slightly higher humidity at 89%. For a detailed look at the weather patterns in September, you can check Itoigawa weather in September.
May and October present mild yet distinct weather patterns. In May, the temperatures range from a minimum of 6°C (42°F) to a maximum of 26°C (79°F), with an average of 15°C (59°F). This month experiences around 138 mm (5.4 in) of precipitation spread over about 15 days, and the humidity averages 81%. In contrast, October sees slightly warmer temperatures, with a minimum of 8°C (47°F) and a maximum of 28°C (82°F), averaging 16°C (62°F). However, it also experiences a significant increase in rainfall, totaling 258 mm (10.2 in) over 18 days, and a higher humidity level of 87%. For more detailed insights into October weather specifically, you can check Itoigawa weather in October.
In comparison, May experiences a milder climate with average temperatures ranging from 6°C (42°F) to a maximum of 26°C (79°F), while November sees cooler conditions, with temperatures dropping to a minimum of 0°C (32°F) and averaging 11°C (51°F). Precipitation is more frequent in November, totaling 185 mm (7.3 in) over 19 days compared to May's 138 mm (5.4 in) across 15 days. Humidity levels are slightly higher in November at 85% compared to May's 81%, contributing to a different feel during these months. For more details on November weather patterns, refer to Itoigawa weather in November.
In May, the weather is generally mild and pleasant, with temperatures ranging from a minimum of 6°C (42°F) to a maximum of 26°C (79°F) and an average of 15°C (59°F). This month experiences about 138 mm (5.4 in) of precipitation over approximately 15 days, accompanied by a humidity level of 81%. In contrast, December brings much colder conditions, with temperatures that can dip as low as -4°C (26°F) and only reach a maximum of 18°C (65°F), resulting in an average temperature of 4°C (40°F). The month is wetter, with 294 mm (11.6 in) of precipitation spread across 24 days and slightly higher humidity at 86%. For more detailed information on December weather, you can visit Itoigawa weather in December.
As May unfolds in Itoigawa, the weather transitions into a more temperate climate, boasting pleasantly warm days that invite outdoor adventures. With an average temperature that rises significantly compared to the colder months, this month is characterized by a delightful blend of warmth and humidity, making it a perfect time for nature enthusiasts to explore the lush surroundings. Although May experiences a fair amount of rain, with precipitation spread across a couple of weeks, these showers are often gentle and rejuvenating. Join us in embracing the vibrant change of seasons by exploring more about the weather nuances in Itoigawa at Itoigawa Climate.