Last updated: August 21, 2025
In Niigata, Japan, the weather in May presents a delightful transition into warmer days, with a maximum temperature reaching 26°C (79°F) and an average of 16°C (62°F). However, the minimum temperature dips to a refreshing 8°C (47°F), inviting outdoor exploration. Visitors should be prepared for some rain, as the region experiences 108 mm (4.3 in) of precipitation over 12 days, contributing to a rich, lush landscape. With humidity levels at around 81%, the air feels pleasantly crisp, making it an ideal time for appreciating the vibrant beauty of this charming city.
In May, Niigata, Japan, experiences a refreshing transition towards warmer weather, with temperatures ranging from a comfortable 8°C (47°F) in the early mornings to a delightful 26°C (79°F) during the day. The average temperature settles at 16°C (62°F), marking a significant increase compared to the cooler months prior. This upward trend from the chill of winter is evident as Niigata shakes off the last remnants of cold, ushering in a season of blooming nature and outdoor activities. As spring gracefully melds into summer, locals and visitors alike can revel in the inviting warmth, making May an ideal time to explore the city’s vibrant scenery and cultural offerings.
May in Niigata, Japan, typically sees a moderate precipitation of 108 mm (4.3 in) over an average of 12 rainy days. This marks a slight decrease from the wetter months of winter and early spring, where January and February recorded higher rainfall amounts (178 mm and 131 mm, respectively) across more rainy days. As the season shifts toward summer, May's precipitation reflects a gradual transition, positioning it as a bridge between the spring bloom and the upcoming summer deluge. The month is characterized by relatively mild rainfall, paving the way for lush landscapes that Niigata is known for, while hinting at the heavier downpours that arrive in the ensuing summer months.
In May, Niigata, Japan, experiences a refreshing humidity level of 81%, marking a transition from the cooler, drier months of April. While this figure signifies a slight uptick compared to the preceding month, it is notably lower than the soaring levels expected in the summer months, particularly July and August, where humidity peaks at a steamy 92%. This trend indicates that residents can enjoy a relatively comfortable spring atmosphere before the heat and moisture of summer fully set in. As June approaches, the humidity in Niigata shoots back up to 88%, signaling a shift towards a more tropical climate, which will remain prevalent through the warmer months.
As May rolls in, Niigata, Japan experiences a marked shift in its UV Index, soaring to 9, which falls into the very high exposure category. This elevated UV level signifies that sun protection is crucial, as the burn time is a swift 15 minutes. Following the trend from previous months, where March and April also exhibited increasing UV levels, May serves as a clear indication that summer is approaching. With UV exposure peaking at 11 in July and August, May’s numbers reinforce the importance of safeguarding your skin during outdoor activities. For a comprehensive understanding of UV patterns throughout the year, visit Niigata UV Index.
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As May unfolds in Niigata, Japan, residents bask in the glow of 308 hours of sunshine, marking the peak of the spring season. This vibrant month showcases a notable increase from April's 278 hours, reflecting a beautiful trend of growing daylight as the year progresses. Following the promising brightness of May, the sunny days gradually carry into June with 302 hours, though a slight dip can be seen in July and August, where 297 and 311 hours respectively suggest a mix of heat and hydration amidst the summer. The shift from the brisk winter months, where sunshine lingers around 140 hours in January, indicates a steady climb towards warmer weather. Overall, May stands out not just as a month of abundant sunshine, but as a pivotal point in the transition to Japan's lush, summer vibrancy.
In Niigata, Japan, the likelihood of sunny weather shows an intriguing progression throughout the year. While January starts off with only a 19% chance of sun, the arrival of spring brings a noticeable increase, peaking at 41% in April. By May, the probability of clear skies hovers around 36%, slightly dipping from the previous month but still reflecting the season's transition toward brighter days. This trend continues into the summer, with July showcasing the highest sun chances at 46%. Overall, while May may not be the sunniest month, it serves as a transitional period that hints at the brighter days ahead.
In Niigata, Japan, the month of May marks a delightful transition into longer days, as daylight extends to a refreshing 14 hours. This increase follows a steady progression from January’s shorter days of 9 hours and beautifully peaks during June and July, where daylight remains consistently at 14 hours. As spring blossoms into summer, residents bask in the extended sunlight, which gradually tapers off into the fall months of August and September, where daylight begins to decrease again. The shift in daylight hours not only highlights the changing seasons but also enhances the beauty of the region, inviting locals and visitors alike to enjoy outdoor activities under the warmer, longer days.
In May, Niigata experiences a subtle transition in wind patterns, with an average speed of 4.0 m/s (9 mph). This marks a slight dip compared to the preceding months of April and March, where winds were more robust at 4.3 m/s (10 mph) and 4.3 m/s (10 mph), respectively. As spring approaches its end, the winds begin to mellow, setting the stage for the upcoming summer months. Interestingly, this decrease in wind speed hints at a shift towards the typically calmer conditions associated with the warmer season, leading into June’s gentle breezes of 2.7 m/s (6 mph). Overall, May serves as a gentle bridge between the vibrant winds of spring and the tranquil summers that follow, offering a serene atmosphere in this charming Japanese locale.
Weather in Niigata varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Niigata, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present a striking contrast in weather patterns. In May, temperatures range from a mild 8°C (47°F) at night to a warm 26°C (79°F) during the day, with an average of 16°C (62°F). This month sees significant rainfall, with 108 mm (4.3 in) over approximately 12 days, and humidity averaging 81%. In contrast, January is considerably colder, with temperatures dipping as low as -2°C (28°F) and averaging just 5°C (41°F), reaching a maximum of 13°C (55°F). It is also wetter during this month, receiving 178 mm (7.0 in) of precipitation over 23 days, coupled with higher humidity at 88%. For a closer look at how January weather in Niigata can impact daily life, check out Niigata weather in January.
When comparing the weather in May and February, a stark contrast emerges. May experiences milder temperatures, with a minimum of 8°C (47°F) and an average of 16°C (62°F), peaking at a comfortable 26°C (79°F). In contrast, February is much colder, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 15°C (59°F) and an average of just 5°C (41°F). Although May has fewer precipitation days at 12 and a total of 108 mm (4.3 in) of rain, February sees more frequent rainfall, totaling 131 mm (5.1 in) over 24 days. Humidity levels are also relatively high in both months, with February at 86% and May at 81%. For a closer look at February's weather specifics, check out Niigata weather in February.
When comparing the weather in March and May, we see notable differences in temperature and precipitation patterns. March has cooler temperatures, ranging from a minimum of 0°C (33°F) to a maximum of 17°C (64°F), with an average of 8°C (46°F). In contrast, May is significantly warmer, with temperatures fluctuating between 8°C (47°F) and 26°C (79°F), averaging around 16°C (62°F). Though both months experience similar levels of precipitation, with March receiving 112 mm (4.4 in) over 16 days and May slightly less at 108 mm (4.3 in) over 12 days, the humidity remains consistent at 81% for both months. For more details on March's weather, you can visit Niigata weather in March.
In comparing the weather of May and April, we can observe some notable differences. May generally offers warmer temperatures, with an average of 16°C (62°F) compared to April's 11°C (52°F). The maximum temperature in May can reach up to 26°C (79°F), while April peaks at 22°C (72°F). Both months experience significant precipitation, with May recording 108 mm (4.3 in) over 12 days and April slightly higher at 111 mm (4.4 in) over 14 days. Additionally, May features a higher humidity level of 81%, in contrast to April’s 78%. For more detailed information, you can check Niigata weather in April.
In May, temperatures in Niigata range from a minimum of 8°C (47°F) to a maximum of 26°C (79°F), with an average of 16°C (62°F). The month experiences a total precipitation of 108 mm (4.3 in) over 12 days, and the humidity hovers around 81%. In contrast, June brings warmer weather with minimum temperatures rising to 13°C (56°F) and maximums reaching 28°C (83°F), resulting in an average of 20°C (69°F). Precipitation slightly decreases to 100 mm (4.0 in) over the same number of days, while humidity increases to 88%. For more details on June's weather, check out Niigata weather in June.
May and July showcase contrasting weather conditions. In May, temperatures range from a minimum of 8°C (47°F) to a pleasant average of 16°C (62°F), reaching a maximum of 26°C (79°F). This month experiences a moderate level of precipitation at 108 mm (4.3 in) over approximately 12 days, with humidity levels at 81%. In contrast, July heats up significantly, with minimum temperatures starting at 20°C (68°F) and averaging 25°C (78°F), peaking at 34°C (94°F). This month sees much higher rainfall, totaling 271 mm (10.7 in) over 16 days, coupled with increased humidity at 92%. To learn more about the weather specifics for July, you can check Niigata weather in July.
In May, temperatures in Niigata range from a cool minimum of 8°C (47°F) to a pleasant maximum of 26°C (79°F), with an average of 16°C (62°F). The month sees a fair amount of rainfall, accumulating to 108 mm (4.3 in) over about 12 days, and the humidity hovers around 81%. In contrast, August experiences much hotter weather, with temperatures ranging from a minimum of 20°C (68°F) to a sweltering maximum of 35°C (95°F), averaging 27°C (81°F). Rainfall significantly increases to 247 mm (9.7 in) over approximately 15 days, along with higher humidity levels at 92%. For a deeper look at August weather patterns, you can check out Niigata weather in August.
In comparing the weather between May and September, we can observe distinct differences in temperature, precipitation, and humidity. May typically experiences milder temperatures with a minimum of 8°C (47°F) and a maximum of 26°C (79°F), averaging around 16°C (62°F). However, it also sees a fair amount of rain with 108 mm (4.3 in) spread over about 12 days, and the humidity hovers at 81%.
In contrast, September brings warmer conditions, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 34°C (94°F), and an average of 23°C (74°F). The month also tends to be wetter, receiving 158 mm (6.2 in) of precipitation over approximately 15 days, and the humidity rises to 89%. For more detailed insights into September's weather, check out Niigata weather in September.
Comparing the weather of May and October reveals distinct contrasts. In May, temperatures range from a minimum of 8°C (47°F) to a pleasant average of 16°C (62°F), peaking at 26°C (79°F). This month experiences about 108 mm (4.3 in) of precipitation over 12 days, with an average humidity of 81%. In contrast, October sees slightly warmer conditions, with minimum temperatures around 12°C (53°F), an average of 18°C (65°F), and highs reaching 28°C (82°F). However, it also brings increased rainfall, totaling about 170 mm (6.7 in) over 16 days and a higher humidity level of 87%. For more specifics on October weather patterns, you can check Niigata weather in October.
May and November in Niigata present distinct weather patterns that reflect the transition between spring and autumn. In May, temperatures range from a minimum of 8°C (47°F) to a maximum of 26°C (79°F), with an average of 16°C (62°F). This month experiences around 108 mm (4.3 in) of precipitation over approximately 12 days, accompanied by a relatively high humidity of 81%. In contrast, November sees cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 21°C (70°F), averaging at 13°C (55°F). The precipitation in November increases to 161 mm (6.3 in) over about 20 days, and humidity rises slightly to 85%. For those interested in a deeper dive into November weather specifics, the information can be found at Niigata weather in November.
May and December present quite different weather experiences. In May, temperatures range from a cool 8°C (47°F) to a pleasant max of 26°C (79°F), with an average of 16°C (62°F). The month sees around 108 mm (4.3 in) of precipitation over approximately 12 days, and humidity levels hover around 81%, making it feel quite fresh. In contrast, December is much colder, with minimum temperatures dropping to 0°C (33°F) and an average of only 7°C (45°F), peaking at 18°C (65°F). This month is considerably wetter, with precipitation reaching 226 mm (8.9 in) over 27 days and humidity slightly higher at 86%. For more details about December weather in Niigata, you can click here: Niigata weather in December.
As May unfolds in Niigata, the weather begins to shift, providing a vibrant prelude to summer. With milder temperatures averaging around 16°C and a maximum that can reach up to 26°C, it's a refreshing contrast to the lingering chill of earlier months. The month also sees significant precipitation, with about 12 days of rain, resulting in a lush landscape that bursts into color. This heightened humidity of 81% creates a distinct atmosphere, often making it feel warmer than it actually is. For those planning to visit or simply seeking to understand the seasonal nuances, May certainly offers a unique window into Niigata's climate. For more in-depth insights, check out Niigata Climate.