Last updated: August 21, 2025
In April, Katsuura, Japan experiences a delightful spring transition with maximum temperatures reaching 23°C (74°F) and an average temperature of 15°C (59°F), creating a comfortable atmosphere for outdoor activities. However, the weather can be unpredictable, as evidenced by 10 days of precipitation, totaling 112 mm (4.4 in), draping the landscape in lush greenery. With a humidity level of 73%, the air remains noticeably fresh yet slightly moist, enhancing the vibrancy of blooming flora. This month encapsulates the charm of spring in Katsuura, drawing in visitors eager to enjoy its scenic beauty and mild climate.
April marks a delightful transition in Katsuura, Japan, as temperatures begin to rise, heralding the arrival of spring's full bloom. The month's minimum temperature of 4°C (40°F) signifies a gentle warming from the chill of winter, while the average climbs to a comfortable 15°C (59°F). As the days lengthen, the climate peaks with a pleasant maximum of 23°C (74°F), inviting outdoor activities and cherry blossom viewings. This pattern shows a clear upward trend from March's cooler averages, highlighting April as a time of refreshment and renewal, perfectly setting the stage for the warmer months ahead.
In April, Katsuura experiences a significant shift in precipitation, receiving 112 mm (4.4 in) of rainfall over 10 days. This marks a departure from the heavy downpours of March, which recorded a striking 163 mm (6.4 in). The transition into spring brings a mix of milder weather and increased precipitation, setting the stage for the lush landscapes that characterize the region. Comparatively, April's rainfall is lower than the deluges seen in the preceding and following months, signaling a brief respite before the 185 mm (7.3 in) expected in June. As the days become longer and warmer, the steady rains of April nourish Katsuura's vibrant nature, blending the remnants of winter with the promise of summer to come.
In April, Katsuura experiences a noticeable uptick in humidity, reaching 73%, a rise from the previous months. This shift signals the arrival of spring, as the air becomes more humid after the cooler winter months of January through March, where humidity levels hovered around the 70% mark. As Katsuura moves into May and the summer months, humidity continues to climb, peaking at a steamy 94% in July. This gradual increase from spring into summer showcases the transition to a more tropical climate, where the balmy air begins to envelop the region, enhancing the lush beauty of the outdoors.
In April, Katsuura, Japan experiences a notable increase in the UV Index, soaring to 10, which signifies a very high level of sun exposure. This is a significant jump from the previous months, moving from a moderate index of 4 in January to 8 in March. With a burn time of only 15 minutes, residents and visitors should take caution and protect their skin during peak hours. As the season progresses into May, the UV Index spikes further to 11, entering the extreme category. This trend highlights the importance of being sun-smart as spring transitions into summer. For more detailed information on UV levels, visit Katsuura UV Index.
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April in Katsuura, Japan, heralds a delightful surge in sunshine, with 271 hours basking the city in warmth and light. This month marks a peak in brightness as the days grow longer, following a steady climb from 252 hours in March. Such an uplifting trend continues into May, where sunshine hours flourish even further to 289 hours. The gradual transition from winter to spring is characterized by an impressive increase in sunlight, providing a vibrant backdrop for blooming landscapes and outdoor activities. As summer approaches in June, the sunshine hours dip slightly to 267 hours, yet the warmth remains palpable, setting the stage for sun-drenched days ahead.
In Katsuura, Japan, April experiences a 49% chance of sunny weather, placing it in a moderate position compared to the surrounding months. Following the relatively brighter February, which boasts a 62% likelihood of sunshine, the chances dip in March to 39% before rebounding slightly in April. Interestingly, as spring unfolds, the likelihood of sunny days begins to trend downward, culminating in the more overcast months of May and June, where chances plummet to 24% and 22%, respectively. This pattern highlights that while April holds potential for pleasant spring days, the weather can be quite variable, reminding visitors to be prepared for both sunny skies and scattered clouds.
In April, Katsuura, Japan, enjoys a significant surge in daylight, with 13 hours of sunlight enriching the landscape. This is a delightful leap from the 11 hours experienced in March, signaling the arrival of spring. As the month progresses, daylight hours continue to climb, with May offering even more at 14 hours. This upward trend illustrates the gradual transition from the shorter winter days of 10 hours in January and February to the longer, sun-drenched days of summer. The shift not only brightens the environment but also enhances outdoor activities, making April a vibrant and lively month in Katsuura.
In April, Katsuura experiences a gentle and refreshing breeze with an average wind speed of 4.4 m/s (10 mph), perfectly complementing the blossoming spring scenery. This slight increase from March's 4.1 m/s signals a transition toward warmer days, as wind speeds begin to rise, peaking alongside May's matching 4.5 m/s. The consistent winds of April provide just enough vigor to stir the cherry blossoms, creating a picturesque setting for locals and visitors alike. As the months progress into summer, wind speeds notably decrease, showcasing a pattern that contrasts the lively spring gusts. The moderate April winds not only enhance the coastal charm of Katsuura but also lay the groundwork for the relaxed, sun-soaked afternoons that follow.
Weather in Katsuura varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Katsuura, focusing on differences in temperature, rainfall, humidity, and UV levels.
April weather is generally milder and wetter compared to January. With average temperatures reaching around 15°C (59°F) and maximums of 23°C (74°F), April offers a more pleasant climate, while January's average sits at just 7°C (46°F), peaking at 18°C (65°F). Moreover, April experiences significantly more rainfall, totaling 112 mm (4.4 in) over 10 days, compared to January's 65 mm (2.6 in) across 6 days. Both months maintain relatively high humidity, with April at 73% and January at 70%, contributing to a feeling of dampness in the air. For those interested in specific January conditions, further details can be found at Katsuura weather in January.
April generally boasts warmer temperatures compared to February, with average highs reaching up to 23°C (74°F) as opposed to February's maximum of 19°C (66°F). The minimum temperatures in April are also higher, starting at 4°C (40°F) compared to 0°C (33°F) in February, which contributes to a more comfortable overall climate. Furthermore, April experiences significantly more precipitation, with 112 mm (4.4 in) over about 10 days, while February sees only 57 mm (2.3 in) over 9 days, highlighting a wetter transition into spring. Despite this increase in rainfall, April's humidity averages 73%, slightly higher than February's 69%, making the air feel a bit more humid as the month progresses. For more specifics on February weather, check Katsuura weather in February.
April typically brings milder temperatures compared to March, with average highs reaching 15°C (59°F) in April, compared to 11°C (53°F) in March. The maximum temperatures are also slightly higher in April, peaking at 23°C (74°F) versus March’s 21°C (69°F). However, April experiences less precipitation overall, with 112 mm (4.4 in) over 10 days, while March sees considerably more at 163 mm (6.4 in) across 14 days. Humidity is slightly higher in April at 73%, compared to 68% in March. For more detailed information, you can check out Katsuura weather in March.
April and May present a noticeable transition in weather patterns. In April, temperatures range from a minimum of 4°C (40°F) to a maximum of 23°C (74°F), with an average of 15°C (59°F). The month sees about 112 mm (4.4 in) of precipitation over 10 days, accompanied by a humidity level of 73%. In contrast, May brings warmer conditions with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 28°C (82°F), averaging 19°C (67°F). Precipitation increases slightly to 135 mm (5.3 in) over 12 days, with humidity rising to 81%. For a more detailed overview of the weather in May, you can check Katsuura weather in May.
April and June weather exhibit distinct differences, particularly in temperature and precipitation patterns. In April, temperatures range from a minimum of 4°C (40°F) to a maximum of 23°C (74°F), with an average of 15°C (59°F), and the month experiences about 112 mm (4.4 in) of precipitation over 10 days, accompanied by a humidity level of 73%. In contrast, June brings a more considerable warmth, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 29°C (85°F), averaging 22°C (72°F). Additionally, June sees increased precipitation at 185 mm (7.3 in) across 15 days, with humidity rising to 88%. For a closer look at Katsuura's June weather, you can visit Katsuura weather in June.
April and July present distinctly different weather patterns. In April, temperatures range from a chilly minimum of 4°C (40°F) to a pleasant maximum of 23°C (74°F), with an average of 15°C (59°F). The month experiences frequent rainfall, totaling 112 mm (4.4 in) over approximately 10 days, accompanied by a humidity level of 73%. In contrast, July offers a much warmer climate, with temperatures varying from a minimum of 19°C (67°F) to a scorching maximum of 34°C (93°F), and an average of 26°C (78°F). This summer month receives even more rain, accumulating 207 mm (8.2 in) over about 17 days, along with a higher humidity level of 94%. For more details on the weather conditions, you can visit Katsuura weather in July.
April and August offer contrasting weather experiences. In April, temperatures range from a cool 4°C (40°F) to a comfortable 23°C (74°F), with an average of 15°C (59°F). The month sees a total precipitation of 112 mm (4.4 in) over approximately 10 days, accompanied by a humidity level of 73%. In stark contrast, August boasts much warmer conditions, with temperatures starting at a minimum of 21°C (70°F) and reaching up to 34°C (94°F), averaging 28°C (82°F). Precipitation slightly increases to 121 mm (4.7 in), spread out over 15 days, while humidity rises to 87%. For more detailed insights on the August weather in Katsuura, you can check out Katsuura weather in August.
April and September showcase contrasting weather patterns. In April, temperatures range from a cool 4°C (40°F) at night to a pleasant 23°C (74°F) during the day, with an average of 15°C (59°F). The month experiences around 112 mm (4.4 inches) of precipitation over 10 days, accompanied by a humidity level of 73%. In contrast, September brings much warmer conditions, with nighttime minima of 16°C (62°F) and daytime highs reaching up to 33°C (91°F), averaging at 24°C (76°F). This month is also wetter, totaling 196 mm (7.7 inches) of rain across 17 days and experiencing higher humidity at 83%. For a deeper dive into September weather, check out Katsuura weather in September.
April and October present quite a contrast in weather patterns. In April, temperatures range from a cool 4°C (40°F) to a pleasant average of 15°C (59°F), culminating in a maximum of 23°C (74°F). The month sees about 112 mm (4.4 in) of precipitation over approximately 10 days, with a humidity level of 73%. In contrast, October features milder temperatures, with minimums of 12°C (54°F) and an average of 20°C (68°F), reaching highs of 28°C (83°F). However, it is significantly wetter, receiving 274 mm (10.8 in) of rainfall across about 15 days and slightly higher humidity at 78%. For more details on weather conditions specific to October, you can check the link: Katsuura weather in October.
April and November exhibit quite similar weather patterns, with average temperatures ranging around 15°C (59°F). In April, temperatures vary from a minimum of 4°C (40°F) to a maximum of 23°C (74°F), while in November, the temperature slightly shifts, with a minimum of 5°C (42°F) at the same maximum. Precipitation levels are also comparable, with April receiving about 112 mm (4.4 in) over 10 days and November a bit higher at 122 mm (4.8 in) over 11 days. The humidity remains consistent as well, with April at 73% and November slightly higher at 74%. For more detailed insights on November's weather, you can check Katsuura weather in November.
April and December showcase distinct weather profiles. In April, temperatures typically range from a low of 4°C (40°F) to a pleasant average of 15°C (59°F), peaking at 23°C (74°F). The month experiences around 112 mm (4.4 in) of precipitation over approximately 10 days, with humidity levels averaging 73%. In contrast, December is cooler, with temperatures dipping to a minimum of 1°C (33°F) and an average of 10°C (51°F), but still reaching a maximum of 22°C (71°F). Precipitation is slightly lower at 87 mm (3.4 in) over about 9 days, and humidity is slightly less at 72%. For a closer look at December weather specifics in Katsuura, you can visit Katsuura weather in December.
As April unfolds in Katsuura, the weather shifts from the chill of winter into the refreshing embrace of spring. With average temperatures rising and maximums reaching a pleasant 23°C (74°F), the month provides a delightful contrast to the cooler preceding months. However, the increase in warmth comes with a certain dampness, as April witnesses about 112 mm of rainfall over 10 days, lending a lush vibrancy to the surroundings. The humidity hovers at a comfortable 73%, making it a perfect time for outdoor explorations. For a deeper dive into the weather patterns of this beautiful coastal town, check out Katsuura Climate.