Last updated: August 21, 2025
Experience the charm of Suwa, Japan, in May, where the weather brings a delightful mix of warmth and refreshing rainfall. With maximum temperatures reaching 29°C (85°F), it's the perfect time to enjoy the outdoors. The average temperature, a comfortable 15°C (58°F), makes for pleasant days, while nighttime may dip to a cool minimum of -1°C (31°F). May also brings significant precipitation, totaling 155 mm (6.1 in) over 12 days, contributing to the region's vibrant greenery and high humidity levels of 81%. Whether you're exploring picturesque landscapes or engaging with local culture, May in Suwa promises a refreshing experience.
In May, Suwa, Japan, ushers in a delightful transition from the lingering chills of winter to the warmth of approaching summer. With minimum temperatures hovering around -1°C (31°F) and rising to an average of 15°C (58°F), the city begins to shake off the frosty grip of previous months. Max temperatures can soar to an inviting 29°C (85°F), offering perfect conditions for outdoor exploration and enjoying the blooming nature. This month’s milder weather represents a significant leap from the earlier months, signaling that spring is in full swing and inviting residents and visitors alike to relish in the vibrant atmosphere of Suwa. The shift to warmer temperatures not only enhances the beauty of the landscape but also sets the stage for the vibrant activities that characterize the upcoming summer months.
May in Suwa, Japan, marks an increase in precipitation, with 155 mm (6.1 in) of rain falling across 12 days. This uptick continues the trend set in the previous months of April and March, which also saw significant rainfall, highlighting the region's lush, green scenery as spring progresses. The steady rise in rainfall from early spring, coupled with the relatively mild number of precipitation days, indicates a transition toward the wetter months ahead. As the landscape flourishes under the May showers, Suwa prepares for the impending summer deluges that typically characterize the later months of the year.
In Suwa, Japan, May ushers in a noticeable rise in humidity, peaking at 81%, which sets the stage for a lush and vibrant spring. This increase follows the more moderate levels of previous months, including 70% in March and 74% in April. As spring progresses, the air becomes increasingly saturated, foreshadowing the impending summer, where June’s humidity spikes to 88% and continues to soar into July and August. The trend indicates a gradual buildup of moisture in the atmosphere, creating a refreshing contrast to the drier winter months, ultimately leading to the lush landscapes that characterize Suwa during this season.
As May unfolds in Suwa, Japan, residents and visitors alike should be prepared for a dramatic spike in sun intensity, as the UV Index soars to an extreme level of 11. This marks an increase from the already high levels seen in April, where a UV Index of 10 necessitated quick sun protection measures. With a burn time slashed to a mere 10 minutes, it's more crucial than ever to embrace sun safety. This trend of escalating UV exposure peaks in the late spring and early summer months, reaching 12 in July and August, before gradually declining in the fall. For more detailed insights into sun exposure and protective measures, explore the full data on the Suwa UV Index.
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As spring gracefully transitions to summer, May emerges as a standout month in Suwa, Japan, basking in an impressive 292 hours of sunshine. This increase not only marks a peak for the month but also highlights a steady upward trend from January's 189 hours through to April's 284 hours. The sunny days of May pave the way for enjoyment and outdoor activities, perfectly capturing the essence of springtime vitality. Although June sees a slight dip to 266 hours, the abundance of sunshine in May sets a vibrant tone that carries through the warmer months, reminding us of the joys that the longer days and sunnier skies can bring.
In Suwa, Japan, the likelihood of sunny weather takes a notable dip in May, with only 24% of days expected to be bright and sunny. This is a significant decrease compared to the preceding months, where the chances hover around the mid-40s. Following the lush blossoms of April, which offers a healthier 45% chance of sunshine, May ushers in a cloudier period, hinting at the transition towards the rainy season. Interestingly, this trend continues into June and August, both also tied at 24%. However, as the year progresses, the chances of sun do rebound, suggesting that while May might be a time for rain, sunnier days are just around the corner as summer approaches.
As spring transitions into summer, Suwa, Japan experiences a notable increase in daylight hours, peaking in May with 14 hours of sunlight. This rise is gradual, beginning with just 9 hours in January and adding an hour each month until it reaches its zenith in the warmer months of June and July. The longer days not only enhance the beauty of the lush surroundings but also provide ample opportunity for outdoor activities and celebrations. As the year progresses into late summer and autumn, the daylight begins to wane, with hours decreasing back to 10 hours by November and returning to a wintry 9 hours in December. This rhythmic ebb and flow of daylight throughout the year profoundly impacts daily life and the natural landscape in Suwa.
In May in Suwa, Japan, the average wind speed holds steady at 2.1 m/s (5 mph), mirroring January's breezy conditions. This consistent pace provides a gentle freshness as spring transitions into summer. Interestingly, after April's slight drop to 2.0 m/s (4 mph), May displays a modest resurgence, suggesting a rejuvenation in the air as the landscape bursts into bloom. However, following this vibrant month, a noticeable decline occurs, with wind speeds tapering off into the warmer months of June and July, where they reach their annual lows of 1.4 m/s (3 mph) and 1.3 m/s (3 mph) respectively. This trend may hint at the calmer, more humid conditions typical of the Japanese summer, making May a delightful month of balance between spring's freshness and summer's approaching warmth.
Weather in Suwa varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Suwa, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January offer starkly different weather patterns. In May, temperatures can range from a chilly 1°C (31°F) at night to a warm 29°C (85°F) during the day, with an average of 15°C (58°F). This month also sees higher humidity at 81% and significant precipitation of 155 mm (6.1 in) over approximately 12 days. In contrast, January experiences much colder conditions, with temperatures dropping as low as -18°C (0°F) and peaking at 12°C (53°F), averaging around -2°C (29°F). The precipitation is lower at 75 mm (3.0 in) over the same number of days, accompanied by a humidity level of 76%. For more detailed insights, you can check Suwa weather in January.
When comparing the weather in May and February, the differences are quite striking. May sees much warmer temperatures, with averages around 15°C (58°F) and a maximum of 29°C (85°F), contrasting sharply with February's average of -1°C (30°F) and a maximum of only 15°C (60°F). Precipitation in May is also notably higher at 155 mm (6.1 in) over 12 days, compared to February’s 80 mm (3.2 in) over 10 days. Additionally, humidity levels in May are elevated at 81%, while February maintains a lower 74% humidity. For more detailed information about the weather in February, you can check out Suwa weather in February.
May generally presents a warmer and more humid climate compared to March. While March experiences a minimum temperature of -7°C (19°F) and an average of 4°C (40°F), May sees a significantly higher minimum of -1°C (31°F) and an average temperature of 15°C (58°F). The maximum temperatures in May can reach up to 29°C (85°F), while March peaks at 20°C (68°F). Both months receive similar amounts of precipitation, with March at 141 mm (5.6 in) and May slightly higher at 155 mm (6.1 in), but May's humidity level is noticeably higher at 81% compared to March's 70%. For more detailed weather patterns in March, you can check Suwa weather in March.
In comparing the weather of May and April, May generally experiences milder temperatures and increased warmth, with average highs reaching 29°C (85°F), compared to April's average maximum of 26°C (78°F). While both months see their share of precipitation, May has slightly higher rainfall at 155 mm (6.1 in) over 12 days, compared to April's 143 mm (5.6 in) over 13 days. Additionally, humidity levels in May are higher at 81%, compared to April's 74%, contributing to a more humid atmosphere as the spring progresses. For a closer look at the weather specifics in April, you can check Suwa weather in April.
May and June exhibit some similarities in weather patterns, but there are notable differences as well. In May, temperatures fluctuate more dramatically, ranging from a cool -1°C (31°F) at night to a warm 29°C (85°F) during the day, with an average temperature of 15°C (58°F). The month sees a total precipitation of 155 mm (6.1 in) over approximately 12 days, and humidity levels hover around 81%. By contrast, June brings milder nights with a minimum temperature of 5°C (41°F) and an average of 18°C (65°F), while daytime highs remain similar at 29°C (84°F). Precipitation decreases slightly to 149 mm (5.8 in) but occurs over a greater number of days, approximately 14, resulting in higher humidity at 88%. For a detailed overview of the weather in June, you can visit Suwa weather in June.
In comparison to May, July offers significantly warmer temperatures, with minimums around 14°C (58°F) compared to May's chilly lows of -1°C (31°F). The average temperature in July reaches a comfortable 22°C (72°F), while May averages at a cooler 15°C (58°F), peaking at highs of 33°C (91°F) in July against May's maximum of 29°C (85°F). However, July also brings increased rainfall, accumulating 289 mm (11.4 in) across 19 days, which is notably higher than May's 155 mm (6.1 in) across 12 days. Additionally, the humidity rises to 93% in July, compared to 81% in May, creating a much more humid atmosphere. For more detailed insights, you can check Suwa weather in July.
May and August showcase distinct weather patterns, reflecting the transition from spring to summer. In May, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 29°C (85°F), with an average of 15°C (58°F). The month experiences 155 mm (6.1 in) of precipitation over 12 days, with humidity levels at 81%.
In contrast, August is warmer and more humid, with temperatures varying from a minimum of 12°C (53°F) to a maximum of 33°C (92°F), yielding an average of 23°C (74°F). Although the total precipitation is slightly lower at 151 mm (5.9 in), it occurs over 16 days, resulting in a humidity level of 90%. This increase in warmth and humidity can create a more muggy atmosphere. For more details, check out Suwa weather in August.
In May, the weather begins to warm up, with temperatures ranging from a chilly -1°C (31°F) at night to a pleasant 29°C (85°F) during the day, averaging around 15°C (58°F). This month experiences significant precipitation, totaling 155 mm (6.1 in) across approximately 12 days, and the humidity is relatively high at 81%. In contrast, September sees slightly milder nighttime temperatures starting at 6°C (42°F) and daytime highs reaching up to 30°C (86°F), with an average temperature of 19°C (66°F). Precipitation increases to 171 mm (6.7 in) over 16 days, and humidity is marginally higher at 86%. For more detailed insights on September weather, you can refer to Suwa weather in September.
May typically showcases a warmer climate with average temperatures around 15°C (58°F) and a maximum of 29°C (85°F), making it a pleasant time of year. However, it also experiences considerable rainfall, with about 155 mm (6.1 in) over approximately 12 days. In contrast, October presents cooler temperatures, averaging 13°C (56°F) and peaking at 26°C (79°F), but it brings significantly more precipitation at 237 mm (9.3 in) over about 16 days. Humidity remains relatively high in both months, with May at 81% and October slightly higher at 83%. For a deeper dive into October's weather specifics, you can check out Suwa weather in October.
May and November present contrasting weather conditions. In May, temperatures range from a chilly -1°C (31°F) at night to a warm 29°C (85°F) during the day, with an average of 15°C (58°F). The month sees considerable precipitation, totaling 155 mm (6.1 in) over approximately 12 days, contributing to the high humidity level of 81%. In contrast, November experiences cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 18°C (65°F), averaging around 7°C (44°F). Precipitation decreases significantly to 66 mm (2.6 in) over about 10 days, while humidity remains slightly lower at 80%. To explore more about the weather conditions in November, you can refer to Suwa weather in November.
May and December exhibit distinct weather characteristics that reveal the transition from spring to winter. In May, temperatures vary significantly, with lows around -1°C (31°F) and highs reaching up to 29°C (85°F), resulting in an average of 15°C (58°F). This month also sees higher precipitation at 155 mm (6.1 in) over 12 days, contributing to a humidity level of 81%.
In contrast, December brings a much colder climate, with average temperatures dropping to 1°C (34°F), and maximums reaching only 16°C (62°F). The minimum temperature can plummet to -9°C (16°F), and the total precipitation reduces to 84 mm (3.3 in) over the same number of days, resulting in slightly lower humidity at 78%. For more detailed insights into December's weather patterns, visit Suwa weather in December.
May in Suwa transitions the landscape with milder temperatures and increased humidity, making it a refreshing departure from the colder months. While the average temperature rises significantly, the occasional chill can still be felt on cooler days, creating a unique blend of spring warmth and lingering crispness. With precipitation occurring on about 12 days, the region welcomes vibrant greenery, although this contributes to the humidity levels hovering around 81%. Overall, May offers a delightful contrast to the winter chill, making it an ideal time to explore the beautiful surroundings. For a deeper dive into the weather patterns throughout the year, check out Suwa Climate.