Last updated: August 21, 2025
June in Nagano, Japan presents a captivating blend of mild temperatures and the lush vibrancy of nature. With maximums reaching 30°C (87°F) and an average of 18°C (65°F), days are warm yet comfortable. However, evenings can cool down significantly, dipping to a minimum of 5°C (41°F). This month is also marked by considerable precipitation, with a total of 171 mm (6.7 in) falling over 18 days, contributing to the region's renowned greenery. The humidity level hovers around a notable 88%, adding a refreshing touch to the air. Exploring Nagano in June means embracing a season alive with beauty and contrasting temperatures.
In June, Nagano, Japan experiences a delightful transition into summer, with temperatures beginning to warm significantly. The month ushers in a minimum of 5°C (41°F), providing a pleasant base to enjoy outdoor activities, while average temperatures reach a comfortable 18°C (65°F). With daytime highs peaking at 30°C (87°F), this period sees the region's lush greenery flourish, making it an ideal time for hiking and exploring the breathtaking landscapes. As the temperatures consistently rise from the chill of winter through spring, June represents a vibrant leap into warmer weather, setting the stage for the bustling summer months ahead.
In Nagano, Japan, June marks a significant transition within the yearly precipitation pattern, showcasing a notable increase to 171 mm (6.7 in), making it the wettest month so far. This uptick continues the trend set by May's 160 mm (6.3 in), as the region enters its rainy season. With 18 days of precipitation, June maintains a moderate frequency of rain that signals the approach of July, which is notorious for its peak rainfall of 341 mm (13.4 in). This increased moisture lays the groundwork for lush landscapes and vibrant ecosystems, characteristic of Nagano during the summer months. Notably, the gradual rise in precipitation amounts from January's 144 mm to June’s striking figure highlights the region's climatic rhythm, ultimately paving the way for a dynamic July ahead.
In June, Nagano experiences a notable uptick in humidity, returning to 88%, which mirrors the levels seen at the beginning of the year. This month transitions from the drier spring days, where humidity slightly dipped to 78% in April, before climbing back up. As summer approaches, the trend continues with July and August recording the highest humidity levels at 92%. This increase not only highlights the region's shift towards warmer and more humid conditions but also sets the stage for the lush, vibrant landscapes that characterize Nagano during the summer months. Following June, humidity remains relatively high, tapering down to the mid-80s by fall, creating a dynamic atmospheric tapestry throughout the year.
In June, Nagano experiences a highly intense UV Index of 11, placing it in the extreme exposure category with a burn time of just 10 minutes. This marks the continuation of a trend seen since May, where the UV Index reaches its peak, making summer months particularly crucial for sun protection. With the UV Index remaining consistently high from May through August, residents and visitors alike should take extra care when outdoors. Given the steep rise from the more moderate levels in earlier months, it’s essential to stay informed and prepared. For further details, visit Nagano UV Index.
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In Nagano, Japan, June marks the joyful culmination of spring, boasting 279 hours of sunshine. This month shares an almost equal light count with both April and May, highlighting the gradual transition from the vibrant blooms of early spring to the lush greenery of early summer. The sunshine in June stands as a beacon of brightness, not only reflecting the warmth of the season but also fitting seamlessly into a trend where the sun shines most generously during late spring and early summer months. Although slightly less sunny than May's peak of 300 hours, June's consistent brightness continues to illuminate the beauty of Nagano, preparing the landscape for a dazzling summer ahead.
In June, Nagano experiences a 22% chance of sunny weather, making it one of the months with the least likelihood of sunshine. This dip comes on the heels of a somewhat unpredictable spring, where April peaked at 43% and May dropped to 25%. As the region transitions into summer, the chances of clear skies remain low, paralleling the consistency of July and August, both also at 22%. Notably, the highest likelihood of sun emerges in the later months, with November at 42%, suggesting that while June may be a less radiant time for outdoor enthusiasts, brighter days are just around the corner as the year progresses.
As June arrives in Nagano, Japan, residents enjoy a delightful balance of 14 hours of daylight, maintaining the same sunny duration as May and July. This period of extended light reflects a steady increase that begins in January with a modest 9 hours and gradually ascends through spring, peaking in the early summer months. The transition from winter's brevity to summer's abundance showcases nature's vibrant awakening, offering ample time for outdoor adventures and exploration. As the days linger, the gradual descent into autumn is hinted at with a slight decrease in daylight in August, yet the warmth of June invites everyone to savor those long, sun-kissed evenings.
In June, the winds in Nagano, Japan become notably gentler, with an average speed of just 1.4 m/s (3 mph), marking the lowest point for the year. This slight shift from the preceding months indicates a tranquil atmosphere as spring transitions into summer. Interestingly, the wind speeds have a consistent pattern throughout the earlier months, hovering around 1.9 m/s to 2.1 m/s. However, as summer approaches, wind speeds dip even further, continuing the trend into July with a minimal 1.3 m/s. This calmness not only sets a serene backdrop for outdoor activities but also hints at the lush, vibrant scenery that characterizes Nagano during this season, making it an appealing destination for nature lovers and adventurers alike.
Weather in Nagano varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Nagano, focusing on differences in temperature, rainfall, humidity, and UV levels.
June and January present starkly contrasting weather patterns in Nagano. In June, temperatures range from a cool 5°C (41°F) to a warm 30°C (87°F), with an average temperature of 18°C (65°F) and a considerable amount of precipitation at 171 mm (6.7 in) over 18 days. The humidity remains high at 88%, contributing to a muggy feel. In contrast, January sees much colder conditions, with temperatures plummeting to a minimum of -15°C (6°F) and a maximum of only 10°C (51°F), averaging around -2°C (29°F). Precipitation is slightly lower at 144 mm (5.7 in), but it occurs over more days, with rain or snow on 21 days, all while maintaining the same humidity level of 88%. For more details on January's weather, you can refer to Nagano weather in January.
June and February showcase stark contrasts in weather patterns. June boasts milder temperatures, with a minimum of 5°C (41°F), an average of 18°C (65°F), and a maximum reaching up to 30°C (87°F). This month experiences significant precipitation, with 171 mm (6.7 in) falling over 18 days, and humidity levels are relatively high at 88%. In contrast, February is decidedly colder, featuring temperatures that dip as low as -14°C (7°F), an average of -1°C (30°F), and a maximum of 16°C (61°F). Though February has lower overall precipitation at 129 mm (5.1 in) across 19 days, humidity is slightly lower at 86%. For more detailed insights into February weather, check Nagano weather in February.
When comparing the weather in June and March, it's clear that June experiences much warmer temperatures, with a minimum of 5°C (41°F) and an average of 18°C (65°F), reaching up to a maximum of 30°C (87°F). In contrast, March starts off quite cold, with temperatures dropping as low as -9°C (16°F) and averaging only 4°C (39°F), despite a potential high of 21°C (70°F). Additionally, June sees significantly more precipitation at 171 mm (6.7 in) over 18 days, while March has 133 mm (5.2 in) over the same number of days. Humidity levels are also higher in June at 88%, compared to 81% in March. For more specific details on March weather, visit Nagano weather in March.
June weather in Nagano is markedly warmer and more humid compared to April. With average temperatures soaring to 18°C (65°F) and maximums reaching 30°C (87°F), June presents a much more summer-like feel. In contrast, April experiences cooler temperatures, ranging from a minimum of -5°C (22°F) to an average of 9°C (48°F), while maximums can hit 27°C (81°F). Precipitation is slightly higher in June, totaling 171 mm (6.7 in) over 18 days compared to April's 141 mm (5.5 in) across 16 days, and the humidity levels in June are notably elevated at 88% versus April's 78%. For more detailed information, you can check Nagano weather in April.
Comparing the weather in June to that of May, June experiences a more significant temperature range with minimums of 5°C (41°F) and maximums reaching up to 30°C (87°F), whereas May has minimums of 0°C (33°F) and slightly higher maximums at 31°C (88°F). The average temperature in June rises to 18°C (65°F) compared to May's average of 15°C (59°F). Precipitation levels in June increase slightly, totaling 171 mm (6.7 in) over 18 days, compared to May's 160 mm (6.3 in) over 16 days. Additionally, June's humidity is higher at 88%, compared to May's 81%. For more detailed information about May weather, you can check Nagano weather in May.
June and July present distinctly different weather profiles. In June, temperatures range from a cool minimum of 5°C (41°F) to an average of 18°C (65°F) and a maximum of 30°C (87°F), accompanied by considerable rainfall of 171 mm (6.7 in) over 18 days, with humidity averaging around 88%. In contrast, July is warmer, with minimum temperatures of 15°C (60°F), an average of 22°C (73°F), and a maximum reaching 33°C (91°F). However, it also brings significantly more precipitation, totaling 341 mm (13.4 in) across 25 days, and slightly higher humidity at 92%. For more detailed information, you can check out Nagano weather in July.
June and August present quite different weather experiences. In June, temperatures range from a chilly 5°C (41°F) at night to a warm 30°C (87°F) during the day, with an average temperature of 18°C (65°F). The month is characterized by significant rainfall, totaling 171 mm (6.7 in) across 18 rainy days, coupled with high humidity levels at 88%. In contrast, August sees relatively milder nights with a minimum temperature of 11°C (52°F) and daytime highs reaching up to 35°C (95°F), leading to a warmer average of 24°C (75°F). Precipitation increases slightly to 198 mm (7.8 in) over 23 days, and humidity is a touch higher at 92%. For more details, you can check out Nagano weather in August.
June and September offer distinct weather experiences, with both months exhibiting mild temperatures but notable differences in precipitation and humidity. In June, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (87°F), averaging around 18°C (65°F). However, it has a substantial amount of rainfall, totaling 171 mm (6.7 in) over approximately 18 days, with humidity levels reaching 88%.
Conversely, September sees a slight increase in the overall temperature, with minimums of 7°C (44°F) and maximums reaching 32°C (89°F), and an average of 19°C (67°F). Rainfall also increases to 194 mm (7.6 in) across 19 days, accompanied by a marginally higher humidity of 89%. For those interested in specific conditions during this time, more details can be found at Nagano weather in September.
In June, the weather features a temperature range from a cool 5°C (41°F) to a warm 30°C (87°F), with an average of 18°C (65°F). This month experiences a significant amount of rainfall, totaling 171 mm (6.7 in) over 18 days, along with high humidity levels at 88%. In contrast, October sees cooler temperatures, with a minimum of 2°C (36°F), an average of 13°C (56°F), and a maximum of 28°C (82°F). The precipitation increases to 217 mm (8.5 in) over the same number of rainy days, with slightly reduced humidity at 87%. For those looking to understand the weather specifics of October, more details can be found here: Nagano weather in October.
June and November showcase contrasting weather patterns, making each month distinct. June brings warm temperatures, with a minimum of 5°C (41°F) and an average of 18°C (65°F), peaking at a maximum of 30°C (87°F). However, it also sees high precipitation levels, accumulating 171 mm (6.7 in) over 18 days, accompanied by high humidity of 88%. In stark contrast, November experiences cooler temperatures, where the minimum drops to -8°C (19°F) and averages around 7°C (44°F), with a maximum of 21°C (70°F). Precipitation is lighter at 94 mm (3.7 in) across 15 days, and humidity slightly decreases to 85%. For more details on the weather in November, you can check out Nagano weather in November.
June and December in Nagano present contrasting weather patterns, showcasing the diversity of the region's climate. In June, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (87°F), with an average of 18°C (65°F), making it a warm and humid month with 88% humidity. However, it also experiences considerable rainfall, with 171 mm (6.7 in) of precipitation over 18 days. In stark contrast, December brings much colder weather, with temperatures dipping to a minimum of -10°C (14°F) and averaging just 1°C (34°F), despite peaking at 19°C (66°F) on warmer days. The month is slightly drier, receiving 151 mm (6.0 in) of precipitation over 20 days, coupled with a lower humidity of 86%. For more detailed insights into December's climate, you can visit Nagano weather in December.
As June unfolds in Nagano, the weather transforms into a vibrant, yet unpredictable experience. With warmer temperatures creeping up to a maximum of 30°C (87°F), the month is marked by a noticeable increase in warmth compared to the cooler spring months. However, this heat is often accompanied by higher humidity levels and frequent rainfall, contributing to the region's lush green landscapes. With an average of 18°C (65°F), June presents a unique blend of warmth and moisture, unlike the drier and cooler seasons that precede it. The 171 mm (6.7 in) of precipitation over 18 days serves as a reminder that while summer beckons, rain remains a reliable companion in Nagano. For a deeper understanding of how the climate shapes this beautiful region, be sure to explore Nagano Climate.