Last updated: August 21, 2025
In April, Izu, Japan, experiences a delightful transition into spring, characterized by a maximum temperature reaching 24°C (76°F) and an average of 14°C (57°F). While daytime warmth is pleasant, evenings can still be crisp, with minimum temperatures dipping to around 3°C (38°F). This month also brings considerable precipitation, totaling 168 mm (6.6 in) across about 11 days, contributing to the region's lush scenery. Humidity levels hover around 74%, making the air feel refreshingly moist. Overall, April in Izu promises a vibrant blend of mild temperatures and occasional showers, perfect for enjoying the blooming landscapes.
In April, Izu, Japan welcomes spring with soaring temperatures that hint at the warmth to come. The month begins with a minimum of 3°C (38°F) and rises to a comforting average of 14°C (57°F), culminating in pleasant highs of 24°C (76°F). This marks a notable increase from the earlier months, where temperatures are often much cooler, especially in January and February when lows can dip below freezing. As winter gives way to spring, Izu's delightful temperature gradient not only invites the blossoming of cherry blossoms but also makes it an ideal time for outdoor explorations, as residents and visitors alike enjoy the milder, more inviting climate.
In April, Izu, Japan experiences a notable precipitation level of 168 mm (6.6 in), a slight decrease from the previous month’s 196 mm. With rainfall spanning 11 days, this month balances wet and dry spells, contributing to a lush landscape typical of spring. April's precipitation sets the stage for the upcoming rainy season, highlighted by a steady increase in rainfall as the region transitions into May and June, where totals soar to 194 mm and 263 mm, respectively. This pattern illustrates Izu’s significant shift from early spring showers to the more abundant rains of early summer, emphasizing the region's climatic rhythms and the vital role of precipitation in nurturing its vibrant ecosystem.
In April, Izu, Japan experiences a humidity level of 74%, which reflects a slight increase from the lower March average of 70%. This rise suggests the onset of the approaching rainy season, as humidity begins its upward trend leading into May's notable 81%. Overall, while April's humidity remains comfortable, it is a precursor to the much more humid months ahead, particularly the peak summer months of July and August where humidity soars to 93% and 90%, respectively. As spring unfolds, Izu transitions from the drier winter months, indicating a shift toward a more humid and lush landscape.
As spring unfolds in Izu, Japan, April marks a significant leap in UV exposure, with the UV Index soaring to 10, classifying it as very high. This sharp rise follows the already elevated levels of March, where the Index reached 8, indicating that sun protection strategies should be prioritized. With a burn time of just 15 minutes, residents and visitors alike must stay vigilant against the sun’s rays as they prepare for the ensuing extreme levels expected in May and June. This notable uptick highlights the importance of adaptation to changing UV conditions throughout the year. For more detailed insights into Izu's UV Index trends, check Izu UV Index.
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As April unfolds in Izu, Japan, the sunshine blossoms, pouring in an impressive 260 hours of daylight, marking a delightful peak in the season's brightness. This upward trend from January's modest 189 hours showcases a steady increase in sunshine throughout the first quarter of the year, culminating in March's 249 hours. The days continue to lengthen as Izu gears up for the vibrant warmth of May, which boasts the highest sun exposure yet at 282 hours. Following this trajectory, April serves as a beautiful bridge, inviting both locals and travelers to bask in the invigorating light that heralds the approaching summer, set against the backdrop of Izu's natural splendor.
As April unfolds in Izu, Japan, the likelihood of sunny weather dips to 48%, marking a noticeable decline from the previous winter months. After a promising 66% chance in February and a solid 59% in January, sunshine becomes less dependable as spring progresses. This trend continues through May and June, where the chances plummet further to 25% and 22%, respectively. However, the weather starts to regain some of its sunny disposition later in the year, with November bouncing back to 62% and December reaching an impressive 72%. Thus, while April may not shine as brightly as earlier months, it hints at the warmer, sunnier days just around the corner.
In Izu, Japan, April marks a significant shift in daylight duration, with the hours increasing to 13 from the previous month’s 11. This upward trend not only heralds the arrival of spring but also foreshadows the summer months ahead. As daylight gradually extends, May sees an even longer 14 hours, which is mirrored throughout June and July. Following this peak, August begins a gentle decline back to 13 hours, paving the way for autumn's approach. This pattern showcases a dynamic balance between light and darkness, inviting residents and visitors alike to enjoy the blossoming beauty of Izu under the sun.
In April, Izu, Japan, experiences a gentle average wind speed of 2.8 m/s (6 mph), slightly lower than the preceding months. This transitional period marks a shift from the more blustery conditions of March, where winds peaked at 2.6 m/s (6 mph). As spring unfolds, the wind speeds gradually decrease, lingering around the lower end of the spectrum until summer. The calming breezes of April encourage outdoor exploration, complementing the region’s breathtaking scenery. While not as brisk as earlier months, these winds create a serene atmosphere, setting the stage for the warmer days ahead. Observing these trends also highlights the subtle fluctuations in Izu's wind patterns, as the bay transitions from winter to the lush vibrancy of spring.
Weather in Izu varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Izu, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in April and January, notable differences emerge. April experiences milder temperatures, ranging from a minimum of 3°C (38°F) to a maximum of 24°C (76°F), with an average of 14°C (57°F). In contrast, January is much cooler, with temperatures fluctuating from -2°C (29°F) to 18°C (64°F) and an average of only 7°C (44°F). Additionally, April sees significantly more precipitation, accumulating 168 mm (6.6 in) over about 11 days, compared to January's 68 mm (2.7 in) over just 5 days. Humidity is comparable in both months, hovering around 74% in April and 76% in January. For a detailed look at January weather, explore Izu weather in January.
April and February exhibit distinct weather patterns, reflecting the transition from winter to spring. In February, temperatures range from a chilly minimum of -1°C (30°F) to a mild maximum of 19°C (67°F), with an average of 7°C (45°F). The month experiences less precipitation, totaling 83 mm (3.2 in) across 8 days, while humidity remains constant at 74%. In contrast, April sees a significant warming trend, with minimum temperatures rising to 3°C (38°F) and maximums reaching 24°C (76°F), averaging 14°C (57°F). Precipitation increases to 168 mm (6.6 in) over 11 days, indicating a wetter climate. For more details on February weather, visit Izu weather in February.
In comparing the weather between March and April, we observe a noticeable increase in average temperatures, with April featuring a minimum of 3°C (38°F), an average of 14°C (57°F), and a maximum of 24°C (76°F), compared to March, which has a minimum of 1°C (34°F), an average of 11°C (51°F), and a maximum of 22°C (72°F). While April showcases a slightly lower precipitation total of 168 mm (6.6 in) over 11 days, March experiences higher rainfall at 196 mm (7.7 in) spread over 13 days. Additionally, humidity levels in April are slightly higher at 74% compared to 70% in March. For more details on March weather patterns, you can refer to Izu weather in March.
April and May present a notable transformation in weather characteristics. In April, temperatures range from a minimum of 3°C (38°F) to a maximum of 24°C (76°F), with an average of 14°C (57°F). The month sees considerable rainfall, totaling 168 mm (6.6 in) over 11 days, contributing to a humidity level of 74%.
In contrast, May offers warmer temperatures, with a minimum of 9°C (48°F) and a maximum of 28°C (82°F), averaging 18°C (65°F). However, it also experiences slightly increased precipitation, amounting to 194 mm (7.6 in) across 12 days, and humidity rises to 81%. For those interested in more details about May weather specifics, you can check Izu weather in May.
April and June display distinct contrasts in weather. In April, temperatures range from a chilly minimum of 3°C (38°F) to a mild average of 14°C (57°F), peaking at a warm 24°C (76°F). However, it is also a month marked by significant rainfall, with 168 mm (6.6 in) of precipitation over 11 days and a humidity level of 74%. In contrast, June brings much warmer conditions, with minimum temperatures climbing to 15°C (59°F) and average highs reaching 29°C (85°F). This month witnesses even heavier rainfall, totaling 263 mm (10.3 in) across 17 days, and humidity rises to a notable 88%. For a more detailed look at the weather in June, you can check out Izu weather in June.
April and July present starkly contrasting weather patterns. In April, temperatures range from a cool minimum of 3°C (38°F) to a comfortable average of 14°C (57°F), peaking at a mild 24°C (76°F). However, this month is also marked by significant rainfall, with 168 mm (6.6 in) of precipitation spread over 11 days and relatively high humidity at 74%. In contrast, July experiences much warmer temperatures, with minimums starting at 18°C (65°F) and averaging around 25°C (77°F), reaching highs of up to 33°C (92°F). This summer month also sees increased precipitation, totaling 326 mm (12.8 in) over 19 days, and a noticeably higher humidity level of 93%. For more specific insights, check Izu weather in July.
April and August present contrasting weather patterns. In April, temperatures range from a chilly minimum of 3°C (38°F) to a comfortable maximum of 24°C (76°F), with an average of 14°C (57°F). The month sees significant rainfall, accumulating 168 mm (6.6 in) over 11 days, alongside a humidity level of 74%. In stark contrast, August experiences much warmer weather, with temperatures starting at a minimum of 20°C (68°F) and soaring to a maximum of 34°C (94°F), averaging around 27°C (81°F). Precipitation in August is slightly higher at 176 mm (6.9 in), spread over 17 days, and humidity peaks at 90%. For more detailed information, you can check Izu weather in August.
April and September present notably different weather patterns. In April, temperatures range from a chilly minimum of 3°C (38°F) to a pleasant maximum of 24°C (76°F), with an average of 14°C (57°F). The month experiences significant rainfall, totaling 168 mm (6.6 in) over 11 days, and a moderate humidity level of 74%. In contrast, September sees much warmer temperatures, with a minimum of 15°C (60°F) and a peak of 33°C (91°F), averaging around 23°C (74°F). Precipitation increases to 221 mm (8.7 in) spread over 20 days, and humidity rises to 86%. For more insights on September weather, check out Izu weather in September.
April and October present distinct yet pleasant weather patterns. In April, temperatures range from a cool 3°C (38°F) at night to a comfortable 24°C (76°F) during the day, accompanied by moderate humidity at 74%. However, it sees considerable precipitation, with about 168 mm (6.6 in) over approximately 11 days. In contrast, October offers warmer temperatures, with a minimum of 11°C (52°F) and a maximum of 29°C (84°F), making it feel more mild overall. Nevertheless, this month experiences significantly more rainfall, totaling 305 mm (12.0 in) across 16 days and higher humidity at 83%. For a more detailed look, you can check Izu weather in October.
April and November share similar temperature ranges, with both months having a minimum of 3°C (38°F) and an average around 14°C (57°F). However, April tends to be a bit warmer overall, reaching a maximum of 24°C (76°F) compared to November's 22°C (72°F). Precipitation levels are also noteworthy; April receives significantly more rainfall at 168 mm (6.6 in) over 11 days, while November has only 94 mm (3.7 in) over 10 days. Interestingly, humidity levels are slightly higher in November at 80%, compared to April's 74%. For a closer look at the weather in November, you can check out Izu weather in November.
April and December present distinct weather patterns, reflecting the transition from spring to winter. In April, temperatures range from a chilly minimum of 3°C (38°F) to a warm maximum of 24°C (76°F), with an average of 14°C (57°F). However, the month is quite wet, receiving 168 mm (6.6 in) of precipitation over 11 days, while maintaining a humidity level of 74%. In contrast, December is cooler, with temperatures fluctuating between 0°C (32°F) and 21°C (69°F), averaging at 9°C (49°F). This month experiences significantly less rainfall, totaling 74 mm (2.9 in) over just 8 days, albeit with a slightly higher humidity at 78%. For those interested in specific conditions during this time, you may find more detailed information here: Izu weather in December.
In April, Izu experiences a distinct transition as spring takes hold, showcasing mild temperatures and a noticeable uptick in humidity. The warmer days invite visitors to enjoy the blooming landscapes, though occasional rain showers occur, adding to the area’s lush beauty. Compared to colder months, the weather becomes significantly more inviting, making it a great time for outdoor exploration. With an average of 11 rainy days, it’s advisable to pack an umbrella, but the refreshing conditions and vibrant scenery are well worth the occasional drizzle. For a more detailed overview, visit Izu Climate.