Last updated: August 21, 2025
April in Minamiuonuma, Japan ushers in a vibrant transition as temperatures begin to rise, with a maximum of 26°C (79°F) and an average of 8°C (46°F), but nighttime can still dip to a brisk -7°C (20°F). The month is characterized by 167 mm (6.6 in) of precipitation spread over 18 days, contributing to the lush greenery of the region. With humidity levels around 78%, the air feels pleasantly crisp, making this spring month a time of rebirth and beauty in the heart of Japan's scenic landscapes.
In April, Minamiuonuma, Japan begins to shake off the lingering chill of winter, with temperatures gradually rising. The month opens with a minimum of -7°C (20°F), but by day's end, sunny afternoons can reach a pleasant 26°C (79°F). This dramatic shift signifies a move from the cold grip of March, which had an average temperature of only 3°C (37°F), to a more comfortable 8°C (46°F) by mid-April. As the snow melts away, residents and visitors alike can enjoy the blooming landscapes, making April a vibrant transition into spring. This warming trend not only enhances outdoor activities but also invites the first hints of greenery, highlighting the region's natural beauty.
April in Minamiuonuma ushers in a moderate shift in precipitation, with total rainfall measuring 167 mm (6.6 inches) over 18 rainy days. This decrease in precipitation compared to earlier months like January and February reflects a gradual transition into the milder spring weather, marking the end of the heavier winter snows. While April's rain is less than both March and the preceding winter months, it lays the groundwork for the upcoming growth as nature awakens from its winter slumber. This trend of declining rainfall continues into May, yet the overall dampness of the month still supports the lush greenery characteristic of the season, hinting at the rich tapestry of life that flourishes in the warmer months ahead.
In April, Minamiuonuma experiences a notable decline in humidity, dipping to 78% from the winter highs of 88% in January and 86% in February. This decrease signals the arrival of spring, as temperatures rise and the air tends to feel fresher. However, the region's humidity begins to climb again in May, reaching 81% and hinting at the moisture-laden summer months ahead. As the year progresses, humidity levels tend to peak in the sweltering months of July and August, where they both soar to 92%, wrapping the city in a blanket of heat and moisture. Thus, April serves as a pivotal month in Minamiuonuma's annual weather cycle, bridging the gap between the chilly winter and the warm, humid summer.
In April, Minamiuonuma experiences a notable rise in UV Index, soaring to 9, which falls into the very high exposure category. This increase marks a trend of intensifying sun exposure as spring progresses. With a recommended burn time of just 15 minutes, it's crucial for residents and visitors alike to take precautions. Following April, May reaches an even higher UV Index of 10, signaling the onset of the summer sun. As the months transition from winter to spring, awareness of UV levels becomes essential for enjoying outdoor activities safely. For more detailed insights, check the Minamiuonuma UV Index.
UV Risk Categories
As April arrives in Minamiuonuma, Japan, residents warmly welcome the increasing sunshine, with 278 hours illuminating the landscape—an impressive leap from the 254 hours in March. This month marks the vibrant transition into spring, showcasing a trend of gradual but steady brightness as the year progresses. Each passing month not only reveals more sunlight but also sets the stage for the lively days of May, when sunshine peaks at 302 hours. The trend highlights a promising ascent, with each month bringing a richer tapestry of light that enhances the beauty of Minamiuonuma's breathtaking scenery.
In Minamiuonuma, Japan, April emerges as a notable transition into sunnier skies, boasting a 41% chance of sunny weather—the highest percentage since January. This increase is a refreshing shift from the dreariness of winter months, with sunlight gradually making its presence felt after the low points of January and March. Interestingly, while May typically brings a drop to 22%, April stands out as a pivot towards brighter days, hinting at the arrival of spring. This trend suggests that springtime in Minamiuonuma is not just a feast for the eyes but also a delightful promise of sunnier moments ahead.
In April, Minamiuonuma experiences a delightful surge in daylight, with an impressive 13 hours that mark the transition into spring. This increase is part of a broader trend as the region moves from the shorter days of winter—where January and February each offer around 9 to 10 hours—into the more vibrant months ahead. March sees a gradual ascent at 11 hours, but it's in April that the daylight truly blossoms. Following April, May continues this upward trajectory with 14 hours of daylight, highlighting the gradual lengthening of days that culminates in the peak summer months. Overall, this pattern not only signifies the arrival of warmer weather but also invites residents and visitors alike to revel in the beauty of the season, making outdoor activities all the more enjoyable.
April in Minamiuonuma brings a gentle increase in wind speed, averaging 2.2 m/s (5 mph), making it one of the breezier months of the spring season. As the region transitions from the chill of winter, this slight uptick in wind reflects the awakening of nature, with blossoms beginning to bloom and outdoor activities ramping up. Interestingly, April's wind is just a notch above the preceding months, with March at 2.0 m/s and February at 2.1 m/s. Following this spring peak, the winds begin to taper off into the summer months, settling to a more subdued 1.5 m/s (3 mph) by June. This gentle flow of air not only heralds warmer temperatures but also creates a refreshing atmosphere perfect for enjoying the vibrant landscapes of Minamiuonuma.
Weather in Minamiuonuma varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Minamiuonuma, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in April and January, striking differences can be observed. April experiences a milder temperature range, with average temperatures reaching 8°C (46°F) and a maximum of 26°C (79°F), while January's average is significantly colder at -3°C (28°F). Additionally, January has a lower minimum temperature of -14°C (6°F) compared to April's -7°C (20°F). Precipitation is more frequent in January, occurring over 22 days, leading to a total of 199 mm (7.8 in), whereas April sees precipitation on 18 days, accumulating 167 mm (6.6 in). Humidity levels are also higher in January at 88%, compared to April’s 78%. For more detailed insights, you can explore Minamiuonuma weather in January.
April and February present a striking contrast in weather conditions. April sees a significant rise in temperatures, with minimums around -7°C (20°F) and maximums reaching 26°C (79°F), compared to February's colder range of -19°C (-2°F) to 14°C (57°F). Precipitation is also notable, with April receiving 167 mm (6.6 in) over 18 days, slightly less than February's 185 mm (7.3 in) over 22 days. Additionally, April experiences slightly lower humidity at 78%, while February's humidity is higher at 86%. For more detailed insights on February weather, visit Minamiuonuma weather in February.
April generally offers milder temperatures compared to March, with a minimum of -7°C (20°F) and an average of 8°C (46°F), while March experiences slightly colder conditions, starting from a minimum of -10°C (14°F) and averaging 3°C (37°F). The maximum temperatures in April can reach up to 26°C (79°F), a noticeable increase from March's maximum of 20°C (68°F). Precipitation levels are similar, with April receiving 167 mm (6.6 in) over 18 days and March slightly higher at 174 mm (6.9 in) over 20 days. Humidity levels are marginally lower in April at 78%, compared to 81% in March. For more detailed weather insights, check out Minamiuonuma weather in March.
April and May present a noticeable shift in weather patterns. In April, temperatures range from a chilly minimum of -7°C (20°F) to an average of 8°C (46°F), with occasional highs reaching up to 26°C (79°F). However, the month is characterized by significant rainfall, totaling 167 mm (6.6 in) over 18 days, alongside a humidity level of 78%.
In contrast, May brings a warmer climate with minimum temperatures around 1°C (34°F), an average of 15°C (58°F), and maximums soaring to 30°C (86°F). Precipitation increases to 181 mm (7.1 in) spread over 16 days, while humidity slightly rises to 81%. For a detailed look at the weather specifics, you can check Minamiuonuma weather in May. Overall, May marks a transition to more pleasant and warmer conditions compared to the chillier April.
April and June exhibit marked differences in weather patterns. In April, temperatures range from a chilly minimum of -7°C (20°F) to a pleasant average of 8°C (46°F), peaking at 26°C (79°F). The month sees significant precipitation of 167 mm (6.6 in) over 18 days, accompanied by a relatively high humidity level of 78%. Conversely, June warms up considerably, with temperatures fluctuating between a minimum of 6°C (43°F) and an average of 18°C (64°F), reaching a maximum of 30°C (86°F). This month experiences even greater rainfall at 201 mm (7.9 in), also spread over 18 days, but with increased humidity at 88%. Such contrasts highlight the transition from the cool, variable spring weather of April to the warmer, more humid conditions of June. For more details, check out Minamiuonuma weather in June.
April and July exhibit striking contrasts in weather patterns. In April, temperatures range from a chilly minimum of -7°C (20°F) to a comfortable maximum of 26°C (79°F), with an average of 8°C (46°F). The month receives significant rainfall, totaling 167 mm (6.6 in) over 18 days, while the humidity sits at a moderate 78%. In contrast, July boasts much warmer conditions, with minimum temperatures climbing to 14°C (58°F) and maximums reaching up to 32°C (90°F), averaging 22°C (73°F). Precipitation is noticeably higher at 376 mm (14.8 in) spread over 24 days, accompanied by increased humidity at 92%. These differences highlight the transition from the cooler, wetter spring to the warm, humid summer months. For more detailed information, you can visit Minamiuonuma weather in July.
April weather is characterized by a significant temperature range, with minimums dipping as low as -7°C (20°F) and maximums reaching up to 26°C (79°F). The month experiences an average temperature of 8°C (46°F) and precipitation totaling 167 mm (6.6 in) over 18 days, with a humidity level of 78%. In contrast, August offers a warmer and more humid experience, with minimum temperatures around 10°C (50°F) and maximums soaring to 33°C (91°F), yielding an average of 24°C (75°F). The month sees even higher rainfall at 238 mm (9.4 in) across 22 days, along with a humidity level that rises to 92%. For more detailed insights, check out Minamiuonuma weather in August.
April and September present distinct weather profiles that highlight the transition between late winter and early autumn. In April, temperatures range from a chilly minimum of -7°C (20°F) to a comfortable maximum of 26°C (79°F), with an average of 8°C (46°F). This month experiences considerable precipitation, totaling 167 mm (6.6 in) over 18 days, and a humidity level of 78%.
Conversely, September sees milder temperatures, starting at a minimum of 6°C (43°F) and peaking at 31°C (89°F), with a higher average temperature of 19°C (67°F). The month is wetter, with precipitation reaching 223 mm (8.8 in) across 19 days, and humidity increases to 89%. Overall, while April is marked by cool, variable weather, September tends to be warmer and more humid, reflecting the diverse climate patterns of the seasons. To learn more about September's weather specifics, check out Minamiuonuma weather in September.
April and October present distinct weather characteristics. In April, temperatures range from a minimum of -7°C (20°F) to a pleasant maximum of 26°C (79°F), with an average of 8°C (46°F). However, it is a relatively wet month, receiving 167 mm (6.6 in) of precipitation over 18 days and maintaining a humidity level of 78%. In contrast, October sees a slight increase in average temperatures, ranging from a low of 2°C (36°F) to a high of 27°C (81°F), averaging 13°C (56°F). The month is notably wetter, accumulating 256 mm (10.1 in) of precipitation, while the higher humidity at 87% gives it a more saturated feel. For more detailed insights, you can check Minamiuonuma weather in October.
April and November exhibit distinct variations in weather patterns. In April, temperatures range from a minimum of -7°C (20°F) to a maximum of 26°C (79°F), with an average of 8°C (46°F) and a relatively high humidity of 78%. The month sees a total precipitation of 167 mm (6.6 in) over approximately 18 days. In contrast, November experiences slightly cooler temperatures, with a minimum of -9°C (17°F) and a maximum of 21°C (71°F), resulting in an average of 6°C (44°F) and a higher humidity of 85%. Precipitation in November is also lower, totaling 145 mm (5.7 in) over the same number of days. For more detailed insights on November weather, you can refer to Minamiuonuma weather in November.
April and December present quite contrasting weather conditions in Minamiuonuma. In April, temperatures can range from a brisk -7°C (20°F) at night to a comfortable 26°C (79°F) during the day, with an average of 8°C (46°F). The month sees about 167 mm (6.6 in) of precipitation over 18 days, accompanied by a moderate humidity level of 78%. In contrast, December's climate is significantly chillier, with temperatures plummeting to a minimum of -14°C (7°F), averaging around 0°C (32°F), and peaking at 18°C (65°F). The month is wetter, receiving 226 mm (8.9 in) of precipitation across 22 days, and the humidity is higher at 86%. For a deeper look into December's climate, you can check Minamiuonuma weather in December.
As April unfolds in Minamiuonuma, the weather presents a striking contrast to the harsher winter months, ushering in a gentle warmth and the promise of spring. With temperatures rising significantly, the days become milder and more inviting, although brisk mornings remind us of the lingering winter chill. The increased humidity and rainfall—spanning nearly half the month—nurture the blooming landscape, creating a vibrant tapestry of nature coming back to life. This transitional month offers an invigorating experience for locals and visitors alike, making it a unique time to explore the region. For a deeper dive into the year-round weather patterns, check out Minamiuonuma Climate.