Last updated: August 21, 2025
In April, Niigata, Japan, offers a refreshing climate as spring unfolds. With temperatures ranging from a pleasant maximum of 22°C (72°F) to a cooler minimum of 4°C (39°F), the month averages around 11°C (52°F), making it perfect for outdoor activities. While the landscape begins to bloom, expect rainy days, as precipitation totals reach 111 mm (4.4 in) over approximately 14 days, contributing to the region's lush environment. With a relative humidity level of 78%, April in Niigata is characterized by a blend of invigorating breezes and the sweet scent of spring, inviting visitors to experience the beauty of this vibrant locale.
In April, Niigata begins to shake off the chill of winter, embracing the arrival of spring with a noticeable rise in temperatures. The average temperature settles at a mild 11°C (52°F), while morning lows of 4°C (39°F) usher in a fresh, crisp start to the day. By midday, the warmth becomes more inviting, peaking at a delightful 22°C (72°F), which sets the stage for outdoor adventures. This month marks a significant transition from the cool temperatures of March, signaling the onset of more pleasant weather patterns. As the region blossoms with vibrant spring flora, the gradual increase in warmth encourages both locals and visitors to revel in Niigata's natural beauty and cultural festivities.
April in Niigata, Japan, brings a hint of spring with 111 mm (4.4 in) of precipitation spread over 14 days. While this amount is a slight dip compared to the preceding months, it reflects a trend of consistency following the heavy rainfall of January and February. As winter transitions into spring, residents can expect a mix of light showers that contribute to the blooming landscape. This moderate precipitation level sets the stage for the drier months ahead, as May follows closely with 108 mm (4.3 in) over just 12 days. The gradual decrease in both total precipitation and the number of rainy days signals a shift towards sunnier weather, making April a pleasant time for outdoor activities amidst the emerging blossoms.
In April, Niigata, Japan, experiences a noticeable shift in humidity, with levels dropping to 78%. This represents a marked decline from the 81% humidity recorded in March, signaling the transition from the chill of early spring to milder conditions. As the month unfolds, the air begins to feel crisper and more refreshing, setting the stage for a gradual increase in humidity that will return in May and beyond. Interestingly, the trend reflects a seasonal cycle where the humidity typically reaches its peak during the summer months of July and August, with levels soaring to 92%. Thus, April serves as a pivotal month, bridging the drier spring atmosphere and the lush, humid summer that follows.
As April unfolds in Niigata, Japan, residents experience a noticeable spike in UV exposure, with the UV Index reaching 8—a stark shift from the moderate levels seen earlier in the year. This heightened rating signals a very high level of solar radiation, reducing burn time to just 15 minutes. This trend emphasizes the transition from spring to summer, where UV levels continue to rise monthly, hitting an extreme peak of 11 in July and August. As the days grow longer and sunnier, it becomes increasingly important to stay protected against potential sun damage. For more details on UV trends throughout the year, explore Niigata UV Index.
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As spring blossoms in Niigata, Japan, April ushers in a significant leap in sunshine, with 278 hours of glorious sunlight illuminating the landscape. This marks a notable increase from the preceding months, following a steady climb from February's 190 hours to March's 246 hours. The trend showcases a clear shift towards longer, brighter days, as April hints at the warmth of summer just around the corner. With each passing month, the sun's embrace continues to strengthen, peaking with May's promising 308 hours. This vibrant transition not only enhances the region's natural beauty but also invites residents and visitors alike to revel in outdoor activities, celebrating the very essence of spring.
In Niigata, Japan, the likelihood of enjoying sunny weather begins to rise noticeably in April, when the chance of seeing clear skies reaches 41%. This marks a significant increase from the earlier months, where January and February linger with only 19% and 34% sunny days, respectively. March shows a slight dip, but as spring unfolds, residents can look forward to brighter days ahead. Following April, May carries a respectable 36% chance of sunshine, hinting at a trend where the warmth and light of summer start making their presence felt. As the season unfolds, July peaks with a 46% chance of sun, demonstrating how vibrant and lush Niigata can become as the year progresses. The upward trajectory of sunny days, especially evident in April, sets the tone for a hopeful and pleasant spring in this picturesque region.
As spring unfolds in Niigata, Japan, the days grow markedly longer, with April offering an impressive 13 hours of daylight. This increase continues the upward trend initiated in March, where daylight extended to 11 hours, capturing the essence of the season's awakening. Following April, daylight peaks again in May at 14 hours, contributing to longer evenings filled with the warmth of early summer. The gradual elongation of days, from just 9 hours in January to April's 13 hours, highlights the region's transition from the winter chill to vibrant spring, inviting residents and visitors alike to relish the enhanced opportunities for outdoor activities and natural beauty.
As April arrives in Niigata, the winds begin to mellow, averaging 4.3 m/s (10 mph), mirroring the gentle breezes of March. This consistency indicates a transition towards the calmer days of spring, as the winter gales start to wane. Historically, April sees wind speeds that are higher than the upcoming months, hinting at a resurgence of freshness before the summer lull sets in. Notably, the wind patterns shift dramatically in the ensuing summer months, where winds plummet to 2.7 m/s (6 mph) in both July and June. This shift not only signifies a change in temperature but also enhances the vibrant atmosphere of Niigata, inviting residents and visitors alike to embrace the beauty of a world awakened by spring.
Weather in Niigata varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Niigata, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January present contrasting weather patterns. In April, temperatures range from a minimum of 4°C (39°F) to a pleasant maximum of 22°C (72°F), with an average of 11°C (52°F). The month experiences a significant amount of rainfall, totaling 111 mm (4.4 in) over about 14 days, paired with a humidity level of 78%. In contrast, January is much colder, with temperatures falling between -2°C (28°F) and 13°C (55°F), averaging just 5°C (41°F). This month sees more precipitation at 178 mm (7.0 in) over 23 days, coupled with higher humidity at 88%. For more details, you can check Niigata weather in January.
When comparing the weather in April and February, April typically offers milder temperatures, with minimums around 4°C (39°F) and maximums reaching up to 22°C (72°F). In contrast, February's temperatures are notably colder, ranging from a minimum of -1°C (31°F) to a maximum of 15°C (59°F). April experiences slightly less precipitation overall, totaling 111 mm (4.4 in) over 14 days, while February sees more rain with 131 mm (5.1 in) across 24 days. Additionally, February has a higher humidity level at 86% compared to April's 78%. For a more detailed look at February weather in Niigata, visit Niigata weather in February.
Comparing the weather between March and April reveals some interesting trends. In April, temperatures ranged from a minimum of 4°C (39°F) to a maximum of 22°C (72°F), with an average of 11°C (52°F), indicating a definite warming as spring progresses. In contrast, March had cooler temperatures, with a minimum of 0°C (33°F) and a maximum of 17°C (64°F), leading to an average of 8°C (46°F). Precipitation levels were similar, with April experiencing 111 mm (4.4 in) over 14 days and March slightly higher at 112 mm (4.4 in) over 16 days. Additionally, humidity was a bit lower in April at 78% compared to 81% in March. For more details on the weather in March, you can check Niigata weather in March.
April and May display a noticeable transition in weather patterns. In April, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (72°F), with an average of 11°C (52°F). The month sees 111 mm (4.4 in) of rainfall over 14 days and maintains a humidity level of 78%. In contrast, May brings warmer temperatures, with a minimum of 8°C (47°F), an average of 16°C (62°F), and a maximum of 26°C (79°F). Precipitation is slightly lower at 108 mm (4.3 in) over 12 days, accompanied by a higher humidity of 81%. This shift indicates a gradual warming trend as spring progresses. For more details, check Niigata weather in May.
April and June in Niigata offer contrasting weather experiences. In April, temperatures range from a chilly 4°C (39°F) at night to a pleasant 22°C (72°F) during the day, with an average of 11°C (52°F). The month also sees significant rainfall, accumulating 111 mm (4.4 in) over approximately 14 days, alongside a humidity level of 78%. In contrast, June brings warmer weather, with nighttime lows of 13°C (56°F) and daytime highs reaching 28°C (83°F), averaging around 20°C (69°F). While June has slightly less rainfall at 100 mm (4.0 in) over 12 days, the humidity rises to 88%, creating a more muggy atmosphere. For more details on temperature and forecasts, check Niigata weather in June.
April and July present contrasting weather conditions. In April, the temperature ranges from a chilly 4°C (39°F) at night to a comfortable average of 11°C (52°F) during the day, peaking at a mild 22°C (72°F). This month sees a fair amount of precipitation, totaling 111 mm (4.4 in) over about 14 days, accompanied by a humidity level of 78%. In contrast, July boasts much warmer temperatures, with nightly lows of 20°C (68°F) and daily averages reaching 25°C (78°F), soaring to a maximum of 34°C (94°F). Rainfall increases significantly in July to 271 mm (10.7 in) over 16 days, and the humidity rises to 92%. For a detailed look at July weather patterns, check out Niigata weather in July.
April and August present stark differences in weather conditions. In April, temperatures range from a cool minimum of 4°C (39°F) to a pleasant maximum of 22°C (72°F), with an average of 11°C (52°F). This month experiences a moderate amount of precipitation, totaling 111 mm (4.4 in) over 14 days, accompanied by a humidity level of 78%. In contrast, August showcases much warmer temperatures, with a minimum of 20°C (68°F) and an average high of 35°C (95°F), averaging 27°C (81°F) overall. However, it also sees increased rainfall, with 247 mm (9.7 in) falling over 15 days and humidity rising to a notably high 92%. For more details about August weather, check out Niigata weather in August.
In April, the weather is cool and mild, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 22°C (72°F) and an average of 11°C (52°F). This month experiences significant precipitation, totaling 111 mm (4.4 in) over about 14 days, and relative humidity is around 78%.
In contrast, September brings a warmer atmosphere, with temperatures fluctuating between a minimum of 16°C (60°F) and a maximum of 34°C (94°F), averaging at 23°C (74°F). It also sees a higher amount of rainfall, accumulating to 158 mm (6.2 in) across 15 days, coupled with higher humidity levels at 89%. For more detailed information, you can check Niigata weather in September.
April weather is characterized by cooler temperatures, with an average of 11°C (52°F) and highs reaching only 22°C (72°F). This month sees significant precipitation, totaling 111 mm (4.4 in) over about 14 days, accompanied by a humidity level of 78%. In contrast, October experiences warmer conditions, with average temperatures rising to 18°C (65°F) and maximums peaking at 28°C (82°F). However, October also brings increased rainfall, totaling 170 mm (6.7 in) over 16 days and higher humidity at 87%. For more details on the weather in October, you can check Niigata weather in October.
April and November share similar minimum temperatures, both starting at around 4°C (39°F), but April boasts a slightly warmer average maximum of 22°C (72°F) compared to November’s 21°C (70°F). While April experiences a moderate average temperature of 11°C (52°F), November is a bit milder with an average of 13°C (55°F). However, November sees significantly more precipitation, with 161 mm (6.3 in) across 20 days, compared to April’s 111 mm (4.4 in) over 14 days. Additionally, November's humidity is higher at 85%, compared to April's 78%. For more insights on the weather, check out Niigata weather in November.
In comparing the weather between April and December, it's evident that both months exhibit notable differences. April generally enjoys milder temperatures, with average highs reaching 22°C (72°F), while December experiences cooler conditions, averaging a maximum of only 18°C (65°F). Precipitation levels also reveal a stark contrast; April receives about 111 mm (4.4 in) over 14 days, whereas December sees almost double that amount—226 mm (8.9 in) spread across 27 days. Additionally, December has a higher humidity level at 86%, compared to April's 78%, contributing to a cooler and wetter atmosphere. For more detailed insights on December weather, you can check out Niigata weather in December.
As April unfolds in Niigata, the weather marks a delightful transition from the cold grip of winter to the mild embrace of spring. With pleasant temperatures averaging around 11°C, residents enjoy the warmth of the sun, making it a stark contrast to the chill of earlier months. While April witnesses a notable increase in precipitation, with frequent showers adding to the charm of blooming landscapes, the overall humidity remains high, creating a refreshing atmosphere. This month stands out not only for its moderate climate but also for the vibrant colors that spring forth, inviting everyone to revel in the beauty of nature. For deeper insights into how April fits into the broader weather patterns, explore Niigata Climate.