Last updated: August 21, 2025
April in Nagasaki, Japan brings a delightful transition into spring, with temperatures ranging from a mild 7°C (46°F) at night to a pleasant maximum of 23°C (73°F) during the day, averaging around 15°C (60°F). This month is characterized by high humidity levels at 79%, creating a lush environment that complements the blooming cherry blossoms. However, visitors should brace for approximately 143 mm (5.6 in) of rainfall spread over 9 days, making it essential to pack for both sun and occasional showers. Overall, April's weather in Nagasaki paints a vibrant and refreshing canvas, inviting exploration amidst the city's rich historical backdrop.
In April, Nagasaki, Japan, begins to shed its winter chills, welcoming a mild temperatures that signal the onset of spring. With minimums around 7°C (46°F) and averages climbing to 15°C (60°F), visitors can enjoy increasingly pleasant weather. The maximum temperatures reaching 23°C (73°F) provide the perfect backdrop for outdoor activities and sightseeing, as the landscape bursts into bloom. This transitional month not only hints at the warmer days ahead but also showcases a significant uptick from the cooler temperatures experienced in previous months, making April an ideal time to explore the beauty of Nagasaki.
April in Nagasaki marks a notable shift in the city's precipitation patterns, with an average of 143 mm (5.6 in) of rainfall spread across 9 days. This amount is a dip from the previous month of March, which saw 157 mm (6.2 in) over 12 days, indicating a slight easing in wet weather as spring progresses. However, April's rainfall is still significant, paving the way for the lush greenery that characterizes the region as it transitions into the warmer months. As we look forward to May, expected precipitation rises sharply to 229 mm (9.0 in), highlighting a trend of increasing rainfall as summer approaches, yet April offers a brief reprieve that allows residents to enjoy the blooming season before the heavier downpours return.
In April, Nagasaki experiences a notable rise in humidity, reaching 79%—a significant increase from the previous month. This uptick is part of a broader trend as the city transitions into the warmer months, setting the stage for an even more humid May at 87%. Comparatively, January through March shows humidity levels closely clustered between 69% and 73%, but April marks a clear shift towards the more oppressive conditions characteristic of summer, culminating in the peak humidity of 97% in July. This pattern highlights the gradual yet unmistakable transition from the mild early months of the year to the hot, humid conditions that define Nagasaki's summer climate.
In April, Nagasaki experiences a significant leap in UV exposure, with the UV Index reaching an alarming 11, categorized as extreme. This sharp increase from March’s 8 serves as a stark reminder for residents and visitors alike to prioritize sun safety, as the burn time plummets to just 10 minutes. The trend of intensifying UV rays continues into May and June, maintaining this extreme level, which underscores the importance of protective measures during these months. As warmer weather approaches, staying informed about the UV Index is crucial for enjoying the outdoors safely. For more detailed information, visit Nagasaki UV Index.
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As April arrives in Nagasaki, Japan, the city basks in 282 hours of sunshine, marking a delightful peak in daylight hours following the steady ascent from January's mere 167 hours. This vibrant month not only signals the blossoming of spring but also reflects a growing trend of increasing sunshine that began with the arrival of March's 261 hours. Following April, the sunshine gradually tapers slightly into May with 279 hours, suggesting that while the days may soon begin to shorten, the warmth and brightness of spring linger a little longer. This pattern showcases Nagasaki's compelling transition from the winter months into a season filled with life, inviting both locals and visitors to revel in the sunny embrace of early spring.
As April arrives in Nagasaki, Japan, the chance of sunny weather sits at a moderate 42%, marking a slight dip from the earlier months of January, February, and March. This seasonal trend reflects a gradual transition from the cooler, sunnier days of late winter to the more unpredictable spring weather. While May follows with a lower probability of sunshine at 30%, April often serves as a bridge, offering glimpses of sunshine before the rainy season sets in during the summer months, where chances drop further to 20-30%. Thus, if you’re planning a visit to Nagasaki in April, you can still expect some bright days, making it a charming time to explore the city's scenic beauty amidst the emerging spring foliage.
In April, Nagasaki experiences a delightful shift in daylight, enjoying 12 hours of sunshine that marks the beginning of longer days as spring unfolds. This uptick from 11 hours in March not only enhances the vibrancy of the city but also invites outdoor activities and exploration. The increasing daylight continues into May, peaking at 13 hours, and sets the stage for the lush landscapes of summertime. As we observe this gradual rise in daylight from January’s sparse 10 hours to April’s refreshing 12 hours, it's clear that the days are growing longer, promising more opportunities to bask in the beauty of Nagasaki's springtime charm.
In April, Nagasaki experiences a gentle breath of wind, with an average speed of just 4.2 m/s (9 mph)—the calmest since mid-winter. While January and February boasted brisk winds of 5.2 m/s and 5.1 m/s, respectively, the transition into spring marks a noticeable drop in wind intensity. This trend continues into May, where winds slow to 3.8 m/s. The prevailing softness in April’s breezes creates a serene atmosphere, inviting residents and visitors alike to enjoy outdoor activities amidst the blossoms that herald the arrival of warmer days. As summer approaches, wind speeds further diminish, hinting at the tranquil conditions that will envelop Nagasaki in the coming months.
Weather in Nagasaki varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Nagasaki, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January showcase contrasting weather patterns. In April, temperatures range from a mild 7°C (46°F) to a pleasant max of 23°C (73°F), with an average of 15°C (60°F). This month also experiences significant precipitation, with 143 mm (5.6 in) over 9 days and a humidity level of 79%. In contrast, January is considerably cooler, with temperatures peaking at 18°C (65°F) and averaging 8°C (47°F), while the minimum dips to freezing at 0°C (32°F). Precipitation during this month is much lower at 61 mm (2.4 in) across 8 days, and humidity is relatively lower at 73%. For more detailed information about January weather, you can visit Nagasaki weather in January.
In comparing the weather of April and February, it is evident that April generally offers a milder and more temperate climate. April's temperatures range from a minimum of 7°C (46°F) to a maximum of 23°C (73°F), with an average of 15°C (60°F), whereas February features cooler temperatures, peaking at 17°C (63°F) and averaging just 9°C (48°F). Furthermore, April experiences higher precipitation, totaling 143 mm (5.6 in) over 9 days, compared to February's 106 mm (4.2 in) spread over 10 days. The humidity is also notably higher in April at 79%, compared to February's 69%. For more information on February weather, you can check out Nagasaki weather in February.
In comparing the weather of April and March, April tends to be milder, featuring a minimum temperature of 7°C (46°F) and an average of 15°C (60°F), compared to March's minimum of 5°C (41°F) and average of 12°C (54°F). Although April experiences slightly less precipitation at 143 mm (5.6 in) over 9 days, compared to March's 157 mm (6.2 in) over 12 days, it also has higher humidity at 79% versus March's 71%. This results in a transition into a warmer and slightly wetter April, offering a more pleasant climate as spring unfolds. For more specifics on March weather, you can visit Nagasaki weather in March.
April and May show notable differences in weather patterns, with May generally being warmer and more humid. In April, temperatures range from a minimum of 7°C (46°F) to a maximum of 23°C (73°F), with an average of 15°C (60°F). The month also sees considerable rainfall, with 143 mm (5.6 in) of precipitation over 9 days and humidity levels around 79%. In contrast, May experiences slightly higher temperatures, ranging from a minimum of 12°C (54°F) to a maximum of 25°C (77°F), with an average temperature of 19°C (67°F). Rainfall increases in May, accumulating to 229 mm (9.0 in) over 11 days, with humidity rising to 87%. This transition signifies a shift towards a more humid and wetter climate as spring progresses. For more specific details on May weather, you can check Nagasaki weather in May.
April and June exhibit notably different weather patterns. In April, temperatures range from a cool minimum of 7°C (46°F) to a comfortable average of 15°C (60°F), peaking at 23°C (73°F). The month experiences significant rainfall, totaling 143 mm (5.6 in) over about 9 days, with humidity levels averaging 79%. In contrast, June brings warmer temperatures, with a minimum of 18°C (64°F) and an average of 22°C (73°F), reaching up to 27°C (81°F). However, this month is characterized by even higher precipitation at 272 mm (10.7 in) spread across 14 days, along with increased humidity levels at 91%. For a more detailed overview of the conditions in June, refer to Nagasaki weather in June.
April and July showcase distinctly different weather patterns. In April, temperatures range from a cool minimum of 7°C (46°F) to a pleasant maximum of 23°C (73°F), averaging around 15°C (60°F). The month experiences moderate precipitation, with 143 mm (5.6 in) falling over 9 days and humidity levels at 79%. In contrast, July boasts much warmer temperatures, with a minimum of 21°C (70°F) and a maximum reaching 32°C (89°F), averaging at 26°C (79°F). This month is significantly wetter, with 442 mm (17.4 in) of rain spread over 18 days, while humidity rises to a staggering 97%. For a closer look at July's conditions, visit Nagasaki weather in July.
April and August present distinctly different weather patterns. In April, temperatures range from a cool 7°C (46°F) at night to a comfortable 23°C (73°F) during the day, with average humidity at 79%. Precipitation is quite notable, with around 143 mm (5.6 in) falling over 9 days. In contrast, August brings significantly warmer temperatures, with nighttime lows of 21°C (69°F) and daytime highs reaching up to 33°C (93°F) and an average temperature of 28°C (82°F). This month also experiences heavier rainfall, totaling 326 mm (12.8 in) over 14 days, along with increased humidity at 94%. For more details, check out Nagasaki weather in August.
April and September present contrasting weather patterns. In April, temperatures range from a minimum of 7°C (46°F) to a maximum of 23°C (73°F), with an average of 15°C (60°F). The month sees about 143 mm (5.6 in) of precipitation over 9 days, accompanied by a humidity level of 79%. Conversely, September offers warmer conditions, with temperatures starting at a minimum of 19°C (66°F) and reaching up to 32°C (90°F), averaging 25°C (77°F). This month experiences higher precipitation, totaling 225 mm (8.9 in) over 14 days, and slightly elevated humidity at 84%. For more detailed information on September weather, visit Nagasaki weather in September.
April and October exhibit distinct weather characteristics. In April, temperatures range from a minimum of 7°C (46°F) to a maximum of 23°C (73°F), with an average of 15°C (60°F). This month is marked by higher precipitation, totaling 143 mm (5.6 in) over 9 days, and a consistent humidity level of 79%. In contrast, October enjoys milder temperatures, with a minimum of 14°C (57°F) and a maximum of 28°C (83°F), averaging 20°C (69°F). Precipitation is slightly lower at 117 mm (4.6 in) across 8 days, while humidity remains steady at 79%. For more specific insights about October weather, you can visit Nagasaki weather in October.
In comparing the weather of April and November, there are notable similarities and differences. Both months feature an average temperature of around 15°C (60°F) with maximums reaching 23°C (73°F) in April and 23°C (74°F) in November. However, April experiences significantly higher rainfall, with 143 mm (5.6 in) over approximately 9 days, compared to November's 81 mm (3.2 in) across the same number of days. Furthermore, humidity levels are slightly higher in April at 79%, while November's humidity is a bit lower at 75%. For more detailed insights on November weather, you can refer to Nagasaki weather in November.
April and December showcase distinct weather patterns, reflecting the transition from spring to winter. In April, temperatures range from a minimum of 7°C (46°F) to a pleasant maximum of 23°C (73°F), with an average of 15°C (60°F). This month also experiences higher humidity at 79% and more precipitation, totaling 143 mm (5.6 in) across 9 days. Conversely, December offers cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 22°C (71°F), averaging only 10°C (51°F). The precipitation is lighter at 92 mm (3.6 in) over 8 days, and humidity drops to 72%. For more insights on weather conditions during this month, check out Nagasaki weather in December.
April in Nagasaki marks a vibrant transition into spring, offering a delightful mix of mild temperatures and increasing warmth. With an average temperature hovering around a comfortable 15°C, this month presents a noticeable shift from the cooler months, making it a perfect time to enjoy outdoor activities. Though precipitation is common, with about 9 days of rain leading to 143 mm of total rainfall, the lush greenery that blooms as a result is truly captivating. Humidity levels rise to around 79%, creating a refreshing atmosphere that complements the blossoming landscape. For those looking to explore Nagasaki's unique charm, April is an ideal month to experience the city in full bloom. For more comprehensive information, check out Nagasaki Climate.