Last updated: August 21, 2025
In April, Numazu, Japan experiences a mild climate characterized by maximum temperatures peaking at 22°C (72°F), while the average settles around 14°C (57°F). The month often starts cool, with minimum temperatures dipping to 5°C (42°F), creating a significant temperature range. April is also a notably wet month, with total precipitation reaching 226 mm (8.9 in) over 11 days, contributing to a humid atmosphere with an average humidity level of 74%. This combination of mild temperatures and substantial rainfall creates a vibrant environment, perfect for enjoying the region's blossoming flora and scenic landscapes.
In April, Numazu, Japan, experiences a pleasant transition into spring, with temperatures showing a noticeable upward trend as the month progresses. The minimum temperature rises to 5°C (42°F), while the average climbs to a comfortable 14°C (57°F) and the maximum soars to a delightful 22°C (72°F). This warmth not only signifies the end of the chillier months, it heralds the blooming of cherry blossoms, making it an ideal time for outdoor activities. With each passing day, the increasing warmth reveals a vibrant atmosphere, inviting both locals and visitors to embrace the beauty of nature awakening after winter.
April in Numazu, Japan, ushers in a notable increase in precipitation, with 226 mm (8.9 in) of rain falling over 11 days. This marks a slight uptick from March's rainfall, illustrating a trend of escalating moisture as spring advances. The wetness of April sets the stage for May, which typically continues this pattern with an even higher average of 236 mm (9.3 in) over a similar number of days. As the season progresses, it becomes evident that April serves as a pivotal month; it bridges the heavier downpours of winter's end and the summer's intensifying rainfall, reflecting a vibrant transition in Numazu's climate.
In April, Numazu, Japan, experiences a humidity level of 74%, marking a slight increase from March's 70%. This modest rise reflects a transitional phase as the city shifts from the cooler, dryer winter months to the warmer, more humid spring season. Interestingly, April's humidity is a precursor to the drastic uptick seen in May and the summer months ahead. As the weather warms, humidity levels continue to climb, peaking in July at a steamy 93%. Overall, April acts as a bridge, setting the stage for the high humidity typical of Numazu's summer, while still carrying the remains of the milder conditions of winter.
April in Numazu, Japan, brings a notable rise in the UV Index, peaking at 10, which falls into the very high exposure category. This surge continues the upward trend established in March, where the UV Index reached 8. With a burn time of just 15 minutes, residents and visitors alike should be particularly cautious during this month. As spring unfolds, it’s a reminder of the increasing intensity of UV radiation leading into the summer months, where the index escalates to extreme levels. For those planning outdoor activities, it’s essential to stay informed and protect your skin. For more insights on UV trends, check Numazu UV Index.
UV Risk Categories
As spring unfolds in Numazu, Japan, April shines brightly with an impressive 260 hours of sunshine, marking a delightful peak in daylight following the gradual rise from 189 hours in January. This trend continues upward through the month of May, where the sunshine reaches 282 hours, offering an exuberant embrace of warmth and light. After April’s high, the sunshine slightly dwindles in the subsequent months, with June seeing 253 hours and July dropping to 229 hours. However, the sun rekindles its brilliance in August, showcasing a remarkable 285 hours before transitioning into the softer hues of autumn. This cyclical dance of sunshine not only highlights the vibrant beauty of Numazu but also sets the stage for the enchanting seasonal changes that grace the region throughout the year.
As spring takes hold in Numazu, Japan, April witnesses a notable shift in the likelihood of sunny weather, with a 49% chance of sunshine. This marks a drop from the earlier months; January and February see higher probabilities of clear skies at 58% and 65%, respectively. However, as the month progresses toward summer, the chance of sun experiences a further decline, with May plunging to 26%, indicating the onset of the wetter season. This trend suggests that while April offers a moderate chance for sunny days, it also acts as a transitional month, preparing residents for the cloudier and rainier months ahead. Thus, if you're planning outdoor activities, April still presents a decent opportunity, though those sunshine-filled days may become rarer as the seasons change.
As spring unfolds in Numazu, Japan, April brings a noticeable shift in daylight duration, with the sun gracing the skies for 13 hours each day. This marks a significant increase from March's 11 hours, signaling the arrival of longer, brighter days that invite outdoor exploration and enjoyment. Following the trend, May sees even more sunlight with 14 hours of daylight, reaching a peak that remains steady over the summer months. As the year progresses, daylight gradually begins to taper off in the fall, but for now, April’s lengthening days offer a refreshing reminder of the vibrant life that spring brings.
In April, the winds in Numazu, Japan, begin to pick up again after a notably calmer March, where average speeds dipped to a serene 2.9 m/s (7 mph). With an increase to 3.2 m/s (7 mph) in April, the breezes provide a refreshing feel as spring unfolds. This transitional month sits comfortably between the last whispers of winter and the gentle gusts of the approaching summer, setting the stage for the more consistent winds of May, which average slightly higher at 3.4 m/s (8 mph). Notably, April's winds reflect a broader trend where the wind speeds fluctuate seasonally, gradually increasing from the quiet chill of winter, ensuring that Numazu's spring air remains invigorating and alive with the promise of warmer days ahead.
Weather in Numazu varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Numazu, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January present notably different weather patterns. In April, temperatures range from a minimum of 5°C (42°F) to a maximum of 22°C (72°F), with an average of 14°C (57°F). This month tends to be much wetter, with 226 mm (8.9 in) of precipitation over 11 days, contributing to a high humidity level of 74%. In contrast, January experiences cooler conditions, with temperatures varying from 0°C (32°F) to 17°C (62°F) and an average of 8°C (46°F). The precipitation is significantly lower at 71 mm (2.8 in), occurring over just 6 days, and the humidity remains slightly higher at 76%. For more details on the weather during this month, check out Numazu weather in January.
When comparing the weather in April to that of February, it is evident that April enjoys significantly warmer temperatures, with an average of 14°C (57°F) compared to February's cooler average of 8°C (46°F). The maximum temperatures in April reach 22°C (72°F), providing a much more pleasant climate for outdoor activities than February's maximum of only 17°C (63°F). However, April also sees a notable increase in precipitation, with 226 mm (8.9 in) over 11 days, whereas February experiences less rain, totaling 99 mm (3.9 in) across 8 days. Despite similar humidity levels at 74%, April's milder temperatures and higher precipitation make it a more dynamic month for weather in comparison to February. For more details, check out Numazu weather in February.
In comparing the weather between March and April, we observe that April tends to be warmer, with average temperatures rising from 11°C (52°F) in March to 14°C (57°F) in April. The maximum temperatures also increase, reaching 22°C (72°F) in April compared to 19°C (67°F) in March. Additionally, while precipitation is slightly higher in April at 226 mm (8.9 in) over 11 days, March experienced 219 mm (8.6 in) across 13 days, indicating a slightly wetter but shorter rainy period in April. Humidity levels are a bit elevated in April at 74%, compared to 70% in March. For more details on the weather in March, you can check Numazu weather in March.
April and May present a notable transition in weather patterns. In April, temperatures range from a minimum of 5°C (42°F) to a maximum of 22°C (72°F), with an average temperature of 14°C (57°F). The month is characterized by significant rainfall, totaling 226 mm (8.9 in) over 11 days, and a humidity level of 74%. In contrast, May sees a warm-up, with temperatures rising between a minimum of 12°C (53°F) and a maximum of 24°C (76°F), averaging 18°C (64°F). Precipitation slightly increases to 236 mm (9.3 in) over 12 days, while humidity also rises to 81%. For more detailed insights on May weather, visit Numazu weather in May.
April weather is characterized by milder temperatures, with averages around 14°C (57°F) and maximums reaching 22°C (72°F). However, it also experiences significant precipitation, totaling 226 mm (8.9 in) over 11 days, accompanied by a humidity level of 74%. In contrast, June sees warmer temperatures, with averages rising to 21°C (70°F) and highs reaching 26°C (80°F). The month is also wetter, as it receives 286 mm (11.3 in) of rain over 16 days, with humidity levels increasing to 88%. For more detailed information on June weather, you can check Numazu weather in June.
April and July present quite different weather patterns. In April, temperatures range from a minimum of 5°C (42°F) to a maximum of 22°C (72°F), with an average of 14°C (57°F). The month is characterized by relatively high precipitation at 226 mm (8.9 in) over 11 days, coupled with a humidity level of 74%. In contrast, July boasts significantly warmer temperatures, with a minimum of 19°C (67°F) and a maximum reaching 31°C (87°F), averaging 24°C (76°F). Precipitation also increases in July to 437 mm (17.2 in), occurring over 21 days, and humidity levels rise dramatically to 93%. For more detailed information, you can explore Numazu weather in July.
April and August present distinctly different weather patterns. In April, temperatures range from a cool minimum of 5°C (42°F) to a comfortable maximum of 22°C (72°F), with an average of 14°C (57°F). The month sees significant precipitation, totaling 226 mm (8.9 in) over 11 days, coupled with a humidity level of 74%. In contrast, August boasts much warmer conditions, with temperatures soaring from a minimum of 21°C (70°F) to a high of 31°C (89°F) and an average of 26°C (80°F). While the total precipitation is slightly less at 223 mm (8.8 in), it falls over more days (16), and humidity levels are higher at 90%. Overall, August is characterized by hotter, more humid weather, while April offers a cooler, wetter climate. For more details, check Numazu weather in August.
April and September present quite contrasting weather patterns. In April, temperatures range from a minimum of 5°C (42°F) to a comfortable maximum of 22°C (72°F), with an average around 14°C (57°F). The month is marked by considerable rainfall, totaling 226 mm (8.9 in) over 11 days, and a humidity level of 74%. In contrast, September enjoys warmer conditions, with temperatures starting at a minimum of 17°C (63°F) and peaking at 30°C (85°F), averaging 24°C (75°F). This month receives slightly more precipitation, at 242 mm (9.5 in) over 17 days, coupled with higher humidity levels at 86%. For a more detailed look at September's weather, you can check Numazu weather in September.
In comparing the weather of April and October, it’s clear that both months present unique characteristics. April typically sees milder temperatures, ranging from a minimum of 5°C (42°F) to a maximum of 22°C (72°F), with an average of 14°C (57°F). This month experiences around 226 mm (8.9 in) of precipitation over approximately 11 days, resulting in a humidity level of 74%. In contrast, October enjoys warmer conditions, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 27°C (81°F) and an average of 19°C (67°F). However, it also comes with greater rainfall, totaling around 296 mm (11.6 in) across about 16 days and a higher humidity level of 83%. For more detailed insights, you can check Numazu weather in October.
April and November exhibit similar temperature ranges, with April slightly cooler at a minimum of 5°C (42°F) compared to November's 6°C (43°F), and both months experiencing a maximum of around 22°C (71°F). However, April tends to be much wetter, receiving 226 mm (8.9 in) of precipitation over 11 days, while November has significantly less with 102 mm (4.0 in) over just 10 days. Additionally, humidity is higher in November at 80%, compared to 74% in April, giving November a more damp feel overall. For a detailed look at November's climate, you can visit Numazu weather in November.
April and December present contrasting weather patterns, reflective of their positions in the year. In April, temperatures range from a brisk minimum of 5°C (42°F) to a pleasant maximum of 22°C (72°F), with an average of 14°C (57°F). This month experiences a significant amount of rainfall, totaling 226 mm (8.9 in) over 11 days, and maintains a humidity level of 74%. In comparison, December sees cooler temperatures, with a minimum of just 1°C (35°F) and a maximum of 19°C (67°F), averaging 10°C (51°F). Precipitation is notably lower, at 84 mm (3.3 in) over 8 days, and the humidity rises slightly to 78%. For a detailed look at December weather specifically, you can visit Numazu weather in December.
In April, Numazu welcomes the vibrant colors of spring with a noticeable shift in weather compared to other months. With temperatures peaking around 22°C and an average of 14°C, the city enjoys a mild climate that invites outdoor activities. However, be prepared for frequent rain, as April sees around 11 days of precipitation, accumulating approximately 226 mm. The humidity levels also rise to about 74%, adding a touch of humidity to the refreshing breeze. Overall, April strikes a balance between warmth and moisture, making it a delightful yet unpredictable time to explore Numazu. For more insights into the weather patterns, check out Numazu Climate.