Last updated: August 21, 2025
In April, Unzen, Japan, experiences a delightful transition into spring, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 29°C (84°F). The average temperature settles around 16°C (62°F), making it a pleasant time to explore the area's natural beauty. However, visitors should prepare for occasional rainfall, as the month sees 135 mm (5.3 in) of precipitation spread over approximately 8 days. With humidity levels hovering around 78%, this period is characterized by a refreshing yet varied climate, perfect for outdoor activities and sightseeing.
In April, Unzen awakens from its winter slumber, showcasing a remarkable transformation in temperature. With minimums rising to 5°C (41°F) and average temperatures settling around 16°C (62°F), the region begins to embrace the warmth of spring. Visitors can delight in the comfort of daytime highs reaching up to 29°C (84°F), making it an ideal time to explore the breathtaking landscapes and blooming flora. As the month progresses, these values reflect a steady upward trend from the cooler months of January through March, where temperatures hovered around the low teens. Thus, April serves as a gentle reminder of the increasing warmth ahead, inviting both locals and travelers to enjoy the natural beauty and rejuvenation of Unzen during this vibrant season.
April in Unzen, Japan, sees a significant transition in its weather patterns, with precipitation measuring 135 mm (5.3 in) over 8 rainy days. This marks a slight decrease compared to the wetter March, where rainfall peaked at 145 mm (5.7 in) across 11 days. As part of the spring season, April's rainfall supports the lush landscapes and blooming flora that characterize the region. Although the precipitation amount is lower than that of March, it serves as a precursor to the more intense rains of May and June, when total precipitation surges, with May bringing 214 mm (8.4 in) and June reaching 262 mm (10.3 in). Overall, April acts as a bridge into the lush, verdant expanses of spring, blending moderate rainfall with the vibrant awakening of nature.
April in Unzen, Japan, marks a notable shift in humidity levels, with the figure rising to 78%—a clear increase from 71% in both January and February, as well as March. This elevation heralds the welcoming of warmer months, setting the stage for the upcoming surge in moisture that will peak in the summer. As spring unfolds, humidity continues to climb steadily, reaching 84% in May and 86% in June, indicating the gradual transition into a more humid climate as the landscape flourishes. This pattern not only reflects the changing seasons but also highlights the region's lush, vibrant environment, preparing it for the lush greenery of summer.
As spring unfolds in Unzen, Japan, April brings an extreme UV Index of 11, marking a significant rise from previous months. This surge highlights a trend toward increased sun intensity, with the burn time shrinking dramatically to just 10 minutes—a stark contrast to the more forgiving weeks of winter and early spring. Following the pattern established in March, where the UV Index climbed to 8, April is a clear signal to prioritize sun protection. As May and June maintain this extreme level, residents and visitors alike should be vigilant and prepared to safeguard their skin. For more details on the UV Index throughout the year, check out Unzen UV Index.
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April in Unzen, Japan, welcomes a marvelous embrace of sunshine, with 282 hours of bright daylight streaming across the landscape. This marks a noticeable rise from 264 hours in March, reflecting the region's gradual transition into spring. As blossoms begin to bloom, the warm rays of sunlight continue to invite outdoor activities and exploration, a contrast to the chill of January's 180 hours and the steady glow of February's 234 hours. The upward trend in sunshine hours not only hints at the arrival of warmer weather but also sets the stage for the even sunnier days in August, which peaks at 300 hours. This progression underscores the vibrant seasonal shifts in Unzen, where each month paints its own unique portrait of light.
In Unzen, Japan, the likelihood of sunny weather in April hovers around 41%, marking a moderate chance that can brighten your visit. This figure demonstrates a slight increase from the preceding months of January through March, where the chances of sunshine were notably lower, ranging from 37% to 44%. As spring unfolds, the prospect of sunshine gradually improves, contrasting sharply with the notably reduced chances during the summer months of June and July, which dip to just 21% and 20%, respectively. Interestingly, this trend of fluctuating weather patterns culminates in the fall, particularly in October, when the likelihood leaps to an impressive 64%. Thus, April offers a transitional moment, hinting at sunnier days ahead while still nestled amidst the lingering coolness of spring.
As April unfolds in Unzen, Japan, residents and visitors alike enjoy an increase in daylight duration, with the days stretching to an inviting 12 hours. This marks a delightful transition from the more subdued 11 hours of daylight seen in March, signaling the approach of spring in full bloom. The gradual extension of daylight is part of a broader trend noticed throughout the year, starting at 10 hours in January and peaking with 14 hours during the summer months of June and July. As April bridges this seasonal shift, it sets the stage for the warm and vibrant days to come, where the beauty of nature can be fully appreciated under the sun’s gentle rays.
In April, the winds in Unzen, Japan, shift to a gentle caress, with an average speed of 2.7 m/s (6 mph), slightly lower than the preceding months of January through March. This indicates a trend of decreasing wind activity as spring deepens, following the brisker breezes of winter. As the temperatures rise, the air becomes calmer, paving the way for a tranquil environment that complements the stunning natural beauty of the area. Following April, the winds dip further in May, suggesting a serene transition towards the warmer summer months. Overall, the April winds signify a gentle embrace of spring, inviting visitors to explore the lush landscapes and vibrant blossoms without the distraction of strong gusts.
Weather in Unzen varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Unzen, focusing on differences in temperature, rainfall, humidity, and UV levels.
April weather is typically warmer and more humid compared to January. With temperatures ranging from a minimum of 5°C (41°F) to a maximum of 29°C (84°F) and an average of 16°C (62°F), April brings a refreshing change after the colder winter months. In contrast, January experiences much cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 19°C (66°F), averaging around 8°C (46°F). Additionally, April sees more precipitation, averaging 135 mm (5.3 in) over about 8 days, compared to January's 53 mm (2.1 in) over 6 days. The humidity levels are also slightly higher in April at 78%, compared to January’s 75%. For more detailed information on January weather, you can check Unzen weather in January.
When comparing the weather in April and February, we see distinct differences in temperature and conditions. April typically experiences a much milder climate, with average temperatures soaring to 16°C (62°F) and maximums reaching up to 29°C (84°F). In contrast, February is much cooler, with an average temperature of just 8°C (48°F) and a maximum of 22°C (71°F). Additionally, April is wetter, receiving 135 mm (5.3 in) of precipitation over 8 days, compared to February's 92 mm (3.6 in) over 9 days, while humidity remains higher in April at 78% versus February's 71%. For more detailed insights, you can check Unzen weather in February.
In comparing the weather between April and March, we can observe a notable increase in temperature and humidity. April boasts a minimum temperature of 5°C (41°F) and an average of 16°C (62°F), reaching a maximum of 29°C (84°F), whereas March experiences slightly cooler conditions, with a minimum of 3°C (37°F), an average of 12°C (55°F), and a peak of 24°C (76°F). Precipitation patterns show that April sees 135 mm (5.3 in) over 8 days, while March has a total of 145 mm (5.7 in) spread across 11 days, indicating both months are quite wet. Additionally, April has a higher humidity level at 78%, compared to March's 71%. For more detailed insights about March conditions, visit Unzen weather in March.
April and May showcase a notable transition in weather patterns. In April, temperatures range from a minimum of 5°C (41°F) to a maximum of 29°C (84°F), with an average of 16°C (62°F). The month experiences 135 mm (5.3 in) of precipitation over 8 days, coupled with a humidity level of 78%. In contrast, May brings warmer temperatures, with a minimum of 10°C (50°F), an average of 21°C (69°F), and a peak temperature of 30°C (86°F). However, this month also sees increased rainfall, totaling 214 mm (8.4 in) over 12 days, and a slight rise in humidity to 84%. For more specific weather details in May, you can check Unzen weather in May.
April and June present distinct weather patterns, with April offering milder temperatures and lower humidity. In April, the average temperature hovers around 16°C (62°F), with minimums dipping to 5°C (41°F) and maximums reaching 29°C (84°F). The month has 135 mm (5.3 in) of precipitation over 8 days, and the humidity stands at 78%. In contrast, June experiences warmer conditions, with averages around 24°C (75°F) and highs peaking at 32°C (90°F). Rainfall increases significantly to 262 mm (10.3 in) over 15 days, contributing to higher humidity levels at 86%. For more specific insights into the June weather conditions, you can visit Unzen weather in June.
April and July present markedly different weather conditions. In April, temperatures range from a minimum of 5°C (41°F) to a maximum of 29°C (84°F), with an average of 16°C (62°F). The month experiences around 135 mm (5.3 in) of precipitation over approximately 8 days, accompanied by a humidity level of 78%. In contrast, July sees much warmer temperatures, starting at a minimum of 20°C (68°F) and reaching highs of up to 37°C (99°F), with an average temperature of 27°C (82°F). Precipitation also increases significantly in July, with 475 mm (18.7 in) expected over 19 days, and humidity levels rising to 92%. For more detailed information, visit Unzen weather in July.
April and August present a striking contrast in weather conditions. In April, temperatures range from a minimum of 5°C (41°F) to an average of 16°C (62°F), with a maximum reaching 29°C (84°F). The month experiences significant rainfall, totaling 135 mm (5.3 in) over 8 days, coupled with a humidity level of 78%. In comparison, August boasts much warmer temperatures, with a minimum of 20°C (68°F), an average of 29°C (85°F), and highs soaring to 39°C (102°F). This summer month sees even higher precipitation at 303 mm (11.9 in) across 14 days, and humidity rises to 91%. For a more detailed look at August weather, check out Unzen weather in August.
April and September exhibit distinct weather patterns, reflecting the transition between spring and autumn. In April, temperatures begin to rise with a minimum of 5°C (41°F) and an average of 16°C (62°F), peaking at 29°C (84°F). The month sees a moderate level of precipitation at 135 mm (5.3 in) over about 8 days, accompanied by a humidity of 78%. In contrast, September experiences warmer temperatures, with a minimum of 16°C (62°F) and an average of 25°C (78°F), reaching highs of 35°C (94°F). This month is also wetter, with 228 mm (9.0 in) of rain spread across roughly 15 days and a slightly higher humidity of 84%. For more detailed information, you can check Unzen weather in September.
April and October present distinct weather patterns, with each month offering a unique experience. In April, temperatures range from a cool 5°C (41°F) at night to a warm 29°C (84°F) during the day, with an average of 16°C (62°F). This month sees around 135 mm (5.3 in) of precipitation over approximately 8 days, and the humidity level hovers at 78%. In contrast, October features milder nighttime temperatures starting at 10°C (50°F) and peaking at an average of 33°C (91°F) during the day, with a comfortable overall average of 21°C (69°F). This month has slightly less rainfall at 120 mm (4.7 in) over 9 days, accompanied by a higher humidity level at 83%. For more details on October weather in Unzen, you can check Unzen weather in October.
April typically sees milder and more varied temperatures, ranging from a minimum of 5°C (41°F) to a maximum of 29°C (84°F), with an average of 16°C (62°F). This month also brings significant rainfall, averaging 135 mm (5.3 in) over 8 days, and a humidity level of 78%. In contrast, November has slightly cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 25°C (78°F), averaging 15°C (59°F). Rainfall is less frequent in November, totaling around 80 mm (3.1 in) also over 8 days, and the humidity is slightly higher at 81%. For more specifics on November conditions, check Unzen weather in November.
April and December offer distinct weather experiences. In April, temperatures range from a minimum of 5°C (41°F) to a maximum of 29°C (84°F), with an average of 16°C (62°F). This month sees about 135 mm (5.3 in) of precipitation over 8 days, accompanied by a humidity level of 78%. In contrast, December features cooler temperatures, with a minimum of 0°C (33°F), an average of 10°C (49°F), and a maximum of 24°C (76°F). The precipitation in December is lower at 89 mm (3.5 in) over 7 days, while humidity is slightly higher at 79%. For a closer look at weather specifics in December, you can visit Unzen weather in December.
April in Unzen presents a delightful transition into spring, characterized by a balmy average temperature that encourages outdoor exploration. Unlike the colder months, this time of year sees the maximum temperature begin to rise, bringing a pleasant warmth that contrasts sharply with the chill of winter. However, expect some moderate rainfall, as April typically experiences more precipitation than March, making it one of the wetter months. With an average humidity hovering around 78%, the air feels fresh and invigorating, perfect for those eager to witness the blooming landscapes. For more insights into the weather patterns throughout the year, visit Unzen Climate.