April Weather in Shirahama, Japan

Last updated: August 21, 2025

In April, Shirahama, Japan experiences a refreshing transition into spring, with maximum temperatures reaching a delightful 21°C (70°F) and an average of 15°C (59°F). The month embodies a blend of warmth and cool breezes, with minimum temperatures dipping to 6°C (44°F) at night. However, visitors should be prepared for moderate rainfall, totaling 148 mm (5.8 in) over approximately 10 days, contributing to the region's lush landscapes. The humidity hovers around 75%, offering a moist atmosphere that enhances the beauty of this coastal gem.

April Temperature in Shirahama

In April, Shirahama begins to shake off the lingering chill of winter, ushering in a delightful transition to milder temperatures. With the minimum temperature rising to a comfortable 6°C (44°F) and the average climbing to 15°C (59°F), the town experiences a refreshing shift. This month boasts a high of 21°C (70°F), making it an ideal time for outdoor activities and enjoying Japan's stunning spring scenery. As the days grow longer and warmer, April serves as a promising precursor to the vibrant warmth of May and the summer months ahead, inviting both locals and visitors to revel in the beauty of nature's rebirth.

April Weather in Shirahama: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Shirahama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shirahama, April typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec474753596672788177696052
Data source: Temperature data for Shirahama generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Shirahama

April in Shirahama, Japan, showcases a transition into the heart of spring with precipitation totaling 148 mm (5.8 in), slightly lower than the previous month, March, which saw 149 mm (5.9 in). During this month, residents can expect rain on about 10 days, maintaining a consistent pattern seen earlier in the year. This steady level of rainfall, along with increasing temperatures, supports the vibrant blooming of cherry blossoms and lush greenery throughout the region. As spring progresses into May, the precipitation starts to rise dramatically, setting the stage for the wettest months ahead, particularly June and July, which often bring heavier downpours. Thus, April serves as a pivotal month, balancing moisture and mild weather in Shirahama before the summer's peak rainfall season.

April Precipitation Trends in Shirahama

The chart displays monthly precipitation patterns in Shirahama, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Shirahama, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec77981491482042383532272393077285
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Shirahama

April in Shirahama, Japan, brings a noticeable rise in humidity, reaching 75%, a mild but significant increase from the cooler months of January through March, which hover around 69%. This uptick marks the beginning of a trend towards the more humid summer season, as May jumps to 82% and June escalates further to 87%. The environment transitions from the crisp, dry air of early spring to the warmer, more humid conditions that characterize the upcoming summer months. As nature awakens, visitors can expect a lush atmosphere, complemented by the increased moisture in the air, creating a vibrant backdrop for exploring Shirahama's scenic beauty.

April Average Humidity in Shirahama

This chart illustrates the average monthly humidity levels in Shirahama, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Shirahama is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%69%69%75%82%87%92%86%82%79%76%74%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Shirahama

In April, Shirahama, Japan, experiences a very high UV Index of 10, signaling a significant increase in sun exposure as the region transitions into warmer months. With a burn time of just 15 minutes, it’s crucial for residents and visitors alike to take sun safety seriously. This trend highlights the escalating UV levels from the earlier months—starting at moderate in January and swiftly rising to high by February and very high by March. As summer approaches, the UV Index is poised to reach even more extreme levels in May and June, where protective measures become increasingly important. Plan your outdoor activities wisely and stay informed at Shirahama UV Index to enjoy the beautiful spring sunshine safely!

Maximum UV Index Levels in Shirahama for April

The chart shows the monthly maximum UV Index (UVI) for Shirahama in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Shirahama typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101111121110764
Data source: Shirahama April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

April Sunshine in Shirahama

In Shirahama, Japan, April unfolds as a delightful bridge between the early signs of spring and the approaching warmth of summer, showcasing an impressive 284 hours of sunshine. Following a progressive upward trend from January's 188 hours through March's 273 hours, April's sunshine marks a peak that hints at the sun-drenched days to come in May, which boasts the highest total of the year at 297 hours. This pattern highlights a vibrant transition, as the days lengthen and the weather warms, inviting locals and visitors alike to bask in the radiance of this picturesque coastal town. With consistent sunshine from March to June, it’s clear that spring is not just a season; it’s a celebration of light and warmth in Shirahama.

Monthly Sunshine Duration in Shirahama: April Highlighted

The April sunshine duration represents the total number of hours Shirahama experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec188h232h273h284h297h276h286h323h265h244h243h231h
Data source: Shirahama April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Shirahama During April

In Shirahama, Japan, April brings a moderate chance of sunny weather, with about 49% of days typically graced by sunshine. This slight uptick from the preceding months of March (46%) and January (45%) signals the approach of spring, when the days start to brighten. However, the sunny likelihood begins to decline significantly as summer approaches, hitting a low of 25% in June. Interestingly, this pattern hints at a seasonal ebb and flow, with the likelihood of sunshine peaking again in October at 63%. Overall, April serves as a transition month, offering a mix of sun and clouds as nature awakens from winter’s slumber.

Percentage of Sunny Days in April in Shirahama

The chart illustrates the percentage of sunny days in Shirahama throughout the year, with April highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Shirahama experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%54%46%49%29%25%30%32%29%63%55%59%
Data source: Shirahama April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Shirahama in April

As spring emerges in Shirahama, Japan, April marks a delightful increase in daylight duration, reaching 13 hours—an hour more than the previous month. This upward trend continues from March, suggesting that the days are becoming noticeably longer, inviting a vibrant energy into the coastal town. Following April, May maintains this generous daylight, making it an ideal time for outdoor activities and enjoying the blossoming landscape. The gradual progression then peaks in June and July with 14 hours of sunlight, before tapering off through the late summer and into autumn. Overall, April serves as a pivotal month, signaling the transition into a season full of light and possibility.

Average Daylight Hours in Shirahama for April

The chart illustrates the variation in daylight duration in Shirahama throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 10m10h 57m11h 58m13h 1m13h 54m14h 20m14h 7m13h 21m12h 21m11h 18m10h 24m9h 56m
Data source: Shirahama daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Shirahama

As spring unfolds in Shirahama, Japan, the April wind presents a gentle shift, with an average speed of 5.8 m/s (13 mph). This marks a notable decrease from the brisker months of January (6.4 m/s) and February (also 6.4 m/s), indicating a transition towards a calmer season. The winds in March, slightly lighter at 6.0 m/s, pave the way for the softer breezes typical of late spring and early summer. By May, the winds taper further to 4.6 m/s (10 mph), suggesting that as the cherry blossoms flourish, a serene atmosphere envelopes the coastal town. This pattern continues into the warmer months, where the playful winds, although milder, bring a refreshing touch to the picturesque landscape, enhancing Shirahama's charming seaside allure.

Average April Wind Speed in Shirahama

The chart displays monthly wind speed patterns in Shirahama, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec6.46.46.05.8 m/s4.63.83.95.14.44.95.46.5
Data source: Shirahama April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Shirahama Compares to Other Months

Weather in Shirahama varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Shirahama, 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 6°C (44°F) to a maximum of 21°C (70°F), with an average of 15°C (59°F). The month experiences 148 mm (5.8 in) of precipitation over approximately 10 days, accompanied by a relatively high humidity of 75%. In contrast, January is cooler, with temperatures fluctuating between 1°C (34°F) and 18°C (64°F) and an average of 8°C (47°F). This month sees less precipitation, totaling 77 mm (3.0 in) over 9 days and slightly lower humidity at 72%. For more detailed information on January weather in Shirahama, you can check Shirahama weather in January.

April's weather is generally milder than February's, with average temperatures rising from 8°C (47°F) in February to 15°C (59°F) in April. While February can experience maximum temperatures up to 18°C (65°F), April boasts warmer highs of 21°C (70°F). Additionally, April tends to be wetter, receiving 148 mm (5.8 in) of precipitation over about 10 days, compared to February’s 98 mm (3.9 in) during the same number of days. Humidity is also slightly higher in April at 75%, compared to 69% in February. For more details about February's weather, you can check Shirahama weather in February.

April experiences slightly warmer temperatures compared to March, with an average of 15°C (59°F) compared to March's 12°C (53°F). The minimum temperature in April is also higher at 6°C (44°F) versus March's 4°C (39°F), while the maximum temperatures peak at 21°C (70°F) in April, compared to 19°C (66°F) in March. Precipitation levels are similar, with April receiving 148 mm (5.8 in) over 10 days, and March recording 149 mm (5.9 in) over 11 days, suggesting a comparable amount of wet weather. Additionally, April has a higher humidity level at 75%, compared to the 69% recorded in March. For more detailed weather insights, you can explore Shirahama weather in March.

April and May exhibit notable differences in weather patterns. In April, temperatures range from a minimum of 6°C (44°F) to a maximum of 21°C (70°F), with an average of 15°C (59°F). The month experiences 148 mm (5.8 in) of precipitation over approximately 10 days, accompanied by a humidity level of 75%. In contrast, May sees warmer conditions, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 25°C (77°F), averaging 19°C (66°F). However, it is also wetter, recording 203 mm (8.0 in) of rainfall over the same number of days and a slightly higher humidity of 82%. For more specific insights into May's conditions, you can visit Shirahama weather in May.

In comparing the weather between April and June, April tends to be milder with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 21°C (70°F), averaging around 15°C (59°F). The month sees considerable precipitation, totaling 148 mm (5.8 in) over approximately 10 days, accompanied by a humidity level of 75%. In contrast, June experiences warmer temperatures, with a minimum of 16°C (61°F) and a maximum of 26°C (79°F), averaging 22°C (72°F). The precipitation increases to 237 mm (9.3 in) over about 14 days, and humidity rises to 87%. Overall, while April offers cooler temperatures and less rainfall, June brings warmth with higher humidity and increased precipitation. For more insights on June's weather, you can visit Shirahama weather in June.

April and July exhibit contrasting weather patterns. In April, temperatures range from a low of 6°C (44°F) to a mild average of 15°C (59°F), peaking at 21°C (70°F). The month sees a fair amount of precipitation, with 148 mm (5.8 in) falling over approximately 10 days, while humidity hovers around 75%. In stark contrast, July experiences significantly warmer temperatures, with minimums at 21°C (71°F), an average of 26°C (78°F), and highs reaching 31°C (88°F). However, it also brings increased rainfall, with 353 mm (13.9 in) recorded over 18 days, and humidity levels rising to 92%. For more insights on July weather, you can visit Shirahama weather in July.

April and August exhibit markedly different weather patterns. In April, temperatures range from a cool minimum of 6°C (44°F) to a pleasant maximum of 21°C (70°F), with an average of about 15°C (59°F). However, this month sees considerable rainfall, with 148 mm (5.8 in) over approximately 10 days and a relative humidity of 75%.

In contrast, August experiences much warmer conditions, with temperatures ranging from a minimum of 22°C (73°F) to a maximum of 31°C (89°F), averaging around 27°C (81°F). The summer month also receives more precipitation at 227 mm (8.9 in), spread over about 14 days, and features a higher humidity of 86%. For more details on August weather specifically, you can check Shirahama weather in August.

April and September present contrasting weather patterns. In April, temperatures range from a cool minimum of 6°C (44°F) to a pleasant average of 15°C (59°F), peaking at a comfortable 21°C (70°F). However, this month is characterized by significant rainfall, with approximately 148 mm (5.8 in) over about 10 days, contributing to a humidity level of 75%.

In contrast, September is much warmer, featuring minimum temperatures of 19°C (67°F) and reaching an average of 25°C (77°F), with maximums soaring to 30°C (86°F). This month experiences even higher precipitation, totaling around 239 mm (9.4 in) over 16 days, along with increased humidity at 82%. For more detailed insights on September weather, you can refer to Shirahama weather in September.

April and October offer distinct weather experiences, reflecting the transition of seasons. April typically sees milder temperatures, with a minimum of 6°C (44°F) and an average of 15°C (59°F), peaking at 21°C (70°F). However, it can be quite rainy, with 148 mm (5.8 in) of precipitation over about 10 days, and a humidity level of 75%. In contrast, October brings warmer conditions, starting at a minimum of 13°C (56°F) and averaging 21°C (69°F), with a maximum of 27°C (81°F). However, it is also wetter, with precipitation totaling 307 mm (12.1 in) over 13 days and a slightly higher humidity of 79%. For more information on the weather specifics of the month, you can check out Shirahama weather in October.

April and November exhibit mild temperatures, with April having a slightly lower average temperature of 15°C (59°F) compared to November's 16°C (61°F). The maximum temperatures in both months are quite similar, with April reaching 21°C (70°F) and November peaking at 23°C (73°F). However, April is marked by significantly higher precipitation, totaling 148 mm (5.8 in) over approximately 10 days, while November sees only 72 mm (2.8 in) of rainfall over about 7 days. Both months share the same humidity level of 75%, creating a consistent moisture content in the air. For more specific information on weather conditions, check out Shirahama weather in November.

April and December showcase distinct weather characteristics, reflecting the transition from spring to winter. In April, temperatures range from a minimum of 6°C (44°F) to a maximum of 21°C (70°F), with an average of 15°C (59°F). This month sees significant rainfall, accumulating to 148 mm (5.8 in) over approximately 10 days, along with a moderate humidity of 75%. In contrast, December experiences a cooler climate, with temperatures ranging from a low of 3°C (38°F) to a high of 20°C (69°F), averaging 11°C (52°F). The level of precipitation is considerably lower at 85 mm (3.4 in), occurring over 9 days, and humidity remains relatively stable at 74%. For more details, you can refer to Shirahama weather in December.

Compare Shirahama's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Shirahama

April in Shirahama marks a transition into spring, where the weather begins to warm up, offering a pleasant contrast to the cooler months that precede it. With an average temperature hovering around a comfortable 15°C, residents and visitors alike can enjoy more outdoor activities, despite occasional rain, as April experiences about 10 days of precipitation. The humidity stays at a relatively high 75%, adding a touch of moisture to the air but creating a refreshing atmosphere, especially after the chill of winter. This makes April a delightful month to experience the blossoming nature, transforming the landscape into a vibrant tapestry of colors. For more insights on the weather pattern throughout the year, check out Shirahama Climate.