Last updated: August 21, 2025
April in Yokosuka, Japan welcomes the transition into spring with a delightful range of temperatures. The city experiences a maximum of 21°C (70°F), while the average hovers around 14°C (58°F), and the nights can dip to a refreshing 6°C (43°F). This month sees a noteworthy precipitation total of 123 mm (4.8 in), spread across 10 days, contributing to the vibrant bloom of flora. With a humidity level of 74%, the air is rich and invigorating, making April a beautiful time to explore the scenic beauty of Yokosuka.
In Yokosuka, Japan, April signifies a gentle transition towards spring, with temperatures gradually warming to create a pleasant climate. The month kicks off with a minimum of around 6°C (43°F), comfortably above the winter chill, while the average temperature rises to 14°C (58°F), inviting outdoor exploration. As the weeks progress, the maximum temperature can reach a delightful 21°C (70°F), perfect for enjoying the blooming scenery. Compared to March, which still holds onto some winter coolness, April presents a noticeable uplift, making it an ideal time for locals and visitors alike to savor the season's beauty as nature awakens.
In April, Yokosuka experiences a notable transition in its weather, with precipitation amounting to 123 mm (4.8 in) over approximately 10 rainy days. This marks a decrease from the significant rainfall of 155 mm (6.1 in) recorded in March, suggesting a slight shift towards drier conditions as spring progresses. However, April’s rainfall still supports the verdant landscapes for which the region is known. As the month transitions into May, the precipitation rises again, indicating a typical wet spell leading into summer. This trend of fluctuating rainfall underscores the dynamic climate of Yokosuka, where the arrival of warmer months often accompanies an uptick in precipitation, paving the way for the lushness of the season.
In April, Yokosuka, Japan, experiences a moderate humidity level of 74%, a slight increase from March's 70%. This trend indicates a gradual rise in moisture as the region transitions from the cooler months of winter into the warmth of spring. Following April, the humidity takes a notable jump to 81% in May, setting the stage for the more humid summer months ahead. As the year progresses, humidity levels peak in the summer, with July reaching a sweltering 93%, reflecting the high moisture typical of Japanese summers. The fluctuations in humidity throughout the year highlight Yokosuka's distinct seasonal changes, emphasizing the shift towards a more oppressive, humid climate as the year unfolds.
As April arrives in Yokosuka, Japan, residents and visitors should be prepared for a jump in UV exposure, with the UV Index soaring to 10—indicating a very high risk level. This marks an increase from the 8 recorded in March, highlighting a trend of intensifying sun strength as spring progresses. With a burn time of just 15 minutes, it's essential to take precautions, such as wearing protective clothing and applying sunscreen diligently. Following April, May and June will escalate to an extreme UV Index of 11, urging everyone to stay vigilant in sun protection as the warmer months approach. For more detailed information, check out the Yokosuka UV Index.
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As April arrives in Yokosuka, Japan, the city basks in a delightful 269 hours of sunshine, marking a promising start to the spring season. This increase is part of a noticeable upward trend, following a steady rise from 255 hours in March and continuing into the warmer months. With each passing month, Yokosuka witnesses longer days bathed in sunlight, culminating in an impressive 286 hours in May and a peak of 297 hours in August. This pattern not only rejuvenates the city's landscapes but also invigorates the spirit of its residents, setting the stage for outdoor activities and vibrant community life as the days grow longer and brighter.
As spring settles in, Yokosuka, Japan, experiences a moderate 50% chance of sunny weather in April, showing a slight decline from March's 42%. This month marks a transitional phase, as temperatures start to rise before the summer sets in, making sunny days a delightful treat amidst the blossoming scenery. Notably, the likelihood of sun dips significantly in May and June, dropping to 25%, suggesting that residents and visitors alike should cherish the April sunshine while it lasts. Overall, despite some fluctuations, April offers a promising glimpse of the season's brightness in Yokosuka.
In April, Yokosuka ushers in a delightful increase in daylight duration, extending to an impressive 13 hours compared to just 11 hours in March. This steady rise in sunshine marks the transition from winter into spring, inviting residents and visitors alike to enjoy more outdoor activities and vibrant cherry blossoms. The trend continues into May, where daylight peaks at 14 hours, creating the perfect backdrop for warm weather adventures. As the year progresses, daylight begins to gradually wane, dipping back to 10 hours by November, yet April stands out as a pivotal month of renewal and light, sparking a sense of hope and rejuvenation.
In Yokosuka, Japan, the month of April brings a gentle breeze with an average wind speed of 5.5 m/s (12 mph), slightly cooling the warming days. This mild wind pattern is part of a subtle upward trend noticed as the colder months transition into spring, with both January and March recording lower speeds at 5.4 m/s and 5.6 m/s, respectively. As we step into May, the winds pick up just a notch, reaching 5.7 m/s (13 mph), signaling the approach of summer. The spring months—especially April—play a pivotal role in this shift, with the winds gradually becomes calmer, dipping to their lowest in June and July, which both feature gentle breezes at 3.5 to 3.8 m/s. This cyclical dance of the winds in Yokosuka reflects the region's unique climate, where springtime offers a brief reprieve before the air warms up for summer.
Weather in Yokosuka varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Yokosuka, focusing on differences in temperature, rainfall, humidity, and UV levels.
April weather generally offers warmer temperatures compared to January, with average highs reaching 21°C (70°F) compared to January's maximum of 18°C (64°F). While January has a cooler minimum temperature of 0°C (33°F), April's minimum is considerably milder at 6°C (43°F). Both months experience notable humidity levels, with January slightly higher at 76% compared to April's 74%. In terms of precipitation, April is significantly wetter, receiving 123 mm (4.8 in) over about 10 days, whereas January sees only 61 mm (2.4 in) over 5 days. For more details about January weather in Yokosuka, visit Yokosuka weather in January.
April generally presents milder and more comfortable weather compared to February. In April, temperatures range from a minimum of 6°C (43°F) to a pleasant average of 14°C (58°F), peaking at 21°C (70°F). In contrast, February's temperatures are notably cooler, with a minimum of 1°C (35°F) and an average of only 8°C (48°F), reaching a maximum of 18°C (65°F). Additionally, April experiences higher precipitation levels at 123 mm (4.8 in) over approximately 10 days, compared to February's 52 mm (2.0 in) over 8 days. Notably, both months maintain the same humidity level of 74%. For a more detailed comparison, you can check Yokosuka weather in February.
In comparing the weather between March and April, we can see a notable warming trend as April introduces slightly higher temperatures, with an average of 14°C (58°F) compared to March's 11°C (53°F). The minimum temperatures also rise, from 4°C (39°F) in March to 6°C (43°F) in April. However, March experiences slightly more precipitation, totaling 155 mm (6.1 in) over 12 days, whereas April sees 123 mm (4.8 in) with rain on 10 days. Humidity is relatively similar, with April at 74% and March at 70%. For more detailed insights specifically regarding March weather, you can check Yokosuka weather in March.
In April, temperatures begin to warm up with a minimum of 6°C (43°F), an average of 14°C (58°F), and a maximum of 21°C (70°F). The month is also characterized by significant rainfall, receiving 123 mm (4.8 in) over 10 days and a humidity level of 74%. In contrast, May sees an increase in temperatures, with a minimum of 12°C (54°F), an average of 19°C (66°F), and a maximum of 24°C (75°F). Although precipitation rises slightly to 136 mm (5.3 in) across 11 days, the humidity also increases to 81%. For those interested in detailed weather patterns, check out Yokosuka weather in May.
April and June exhibit notable differences in weather patterns. In April, temperatures range from a chilly 6°C (43°F) at night to a pleasant 21°C (70°F) during the day, with an average temperature of 14°C (58°F). This month experiences significant rainfall, totaling 123 mm (4.8 in) over about 10 days, and has a humidity level of 74%. In contrast, June sees a marked increase in warmth, with minimum temperatures of 16°C (62°F) and maximums reaching 26°C (79°F), averaging at 22°C (71°F). The month is wetter, with precipitation amounting to 175 mm (6.9 in) across approximately 12 days, and humidity rises to 88%. For more details on June weather, you can visit Yokosuka weather in June.
April and July present a stark contrast in weather conditions. In April, temperatures range from a chilly minimum of 6°C (43°F) to a pleasant maximum of 21°C (70°F), with an average of 14°C (58°F). The month experiences around 123 mm (4.8 in) of precipitation over approximately 10 days, and the humidity level hovers around 74%. In contrast, July heats up significantly, with minimum temperatures starting at 19°C (67°F) and reaching a maximum of 29°C (85°F), averaging 25°C (77°F). This month sees much more rainfall, with 211 mm (8.3 in) over about 17 days, and humidity levels rising to a high 93%. For more detailed information about July weather, check out Yokosuka weather in July.
April and August present contrasting weather patterns. In April, temperatures range from a minimum of 6°C (43°F) to an average of 14°C (58°F), peaking at 21°C (70°F). The month is characterized by considerable precipitation, with 123 mm (4.8 in) falling over 10 days, alongside a humidity level of 74%. In comparison, August is significantly warmer, with minimum temperatures starting at 21°C (70°F) and averaging 27°C (80°F), reaching a maximum of 32°C (89°F). Precipitation in August is slightly lower at 117 mm (4.6 in) but occurs over a similar number of days (11), coupled with higher humidity at 90%. For a detailed look at August weather, you can visit Yokosuka weather in August.
April and September present markedly different weather conditions. In April, temperatures range from a minimum of 6°C (43°F) to a maximum of 21°C (70°F), with an average of 14°C (58°F). The month sees 123 mm (4.8 in) of precipitation, spread over approximately 10 days, and humidity levels sit at a comfortable 74%. In contrast, September delivers warmer temperatures, with a minimum of 18°C (65°F) and a maximum of 30°C (85°F), averaging 24°C (76°F). However, it also brings increased precipitation of 189 mm (7.4 in) over about 15 days, coupled with higher humidity at 86%. For more details on September's weather, you can visit Yokosuka weather in September.
April and October exhibit notable differences in weather patterns. In April, temperatures range from a minimum of 6°C (43°F) to a maximum of 21°C (70°F), with an average of 14°C (58°F). This month experiences about 123 mm (4.8 in) of precipitation over approximately 10 days, along with a humidity level of 74%. In contrast, October showcases warmer temperatures, with a minimum of 13°C (56°F) and a maximum of 27°C (81°F), averaging around 20°C (68°F). However, it also brings more rain, accumulating 271 mm (10.7 in) over 16 days and a slightly higher humidity at 83%. For more detailed insights into October weather in Yokosuka, you can visit Yokosuka weather in October.
April and November share similar minimum temperatures, both starting at around 6°C (43°F), but November tends to be slightly warmer with an average temperature of 16°C (60°F) compared to April's 14°C (58°F). While April experiences a bit more rainfall at 123 mm (4.8 in) over 10 days, November sees slightly less precipitation at 108 mm (4.3 in) but over 11 days, resulting in a slightly higher humidity level of 80% in November compared to 74% in April. Overall, November feels a bit milder and wetter, making for a more humid experience. For more detailed insights, check out Yokosuka weather in November.
April and December present contrasting weather experiences. In April, temperatures range from a minimum of 6°C (43°F) to an average of 14°C (58°F), peaking at 21°C (70°F), accompanied by higher precipitation of 123 mm (4.8 in) over 10 days, contributing to a humidity level of 74%. In contrast, December sees cooler temperatures, with a minimum of 3°C (37°F) and an average of 11°C (51°F), maintaining a maximum of 21°C (70°F), but significantly less rainfall at 71 mm (2.8 in) over 8 days and a humidity of 78%. The difference in precipitation and average temperatures offers a distinct seasonal feel between the two months. For more detailed insights into December conditions, check out Yokosuka weather in December.
In April, Yokosuka experiences a refreshing transition from the chill of winter to the mildness of spring, making it a delightful time to explore the area. With temperatures averaging around 14°C, this month offers a comfortable warmth that contrasts sharply with the colder months preceding it. However, it also brings about noticeable humidity levels and a fair amount of precipitation, with rain falling on about 10 days. This mix of mild temperatures and increased moisture paves the way for vibrant blooms and lush landscapes, distinguishing April from both the chilly months of winter and the warmer, drier conditions of summer. For a deeper dive into Yokosuka's yearly weather patterns, visit Yokosuka Climate.