April Weather in Setouchi, Japan

Last updated: August 21, 2025

April in Setouchi, Japan brings a delicate blend of springtime warmth and refreshing breezes. With maximum temperatures reaching 21°C (71°F) and an average of 13°C (56°F), the days invite outdoor adventures amidst blooming landscapes. Nighttime can be cooler, dipping to a minimum of 4°C (40°F), so layered clothing is advisable. This month sees about 130 mm (5.1 in) of rain spread over 9 days, adding a lush quality to the scenery while maintaining a humidity level of 74%. Whether you're strolling along the coastline or exploring local attractions, April offers a vibrant backdrop for experiencing the charm of Setouchi.

April Temperature in Setouchi

In April, Setouchi, Japan begins to shed the chill of winter, welcoming milder temperatures that signal the arrival of spring. With minimums of 4°C (40°F) and average highs reaching 21°C (71°F), the weather invites outdoor exploration and blooming landscapes. This transition marks a clear ascent from the cooler March temperatures, where daytime averages barely touched 9°C (49°F). As the month progresses, the warmth becomes more pronounced, offering a delightful contrast to the preceding months and preparing the region for the vibrant allure of early bloomers like cherry blossoms. April serves as a bridge to the pleasant weather of May, where temperatures will rise further, but for now, it presents a charming blend of briskness and mildness, perfect for enjoying the awakening beauty of Setouchi.

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

The chart illustrates April temperature patterns in Setouchi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Setouchi, 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).
JanFebMarAprMayJunJulAugSepOctNovDec434349566471788276675748
Data source: Temperature data for Setouchi generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Setouchi

April in Setouchi, Japan, marks a notable transition in precipitation, as the region receives 130 mm (5.1 in) of rain over 9 days. This represents a significant increase from March's 108 mm (4.2 in) and sets the stage for the wetter months ahead. As spring fully unfolds, the rainfall begins to approach May’s 131 mm (5.2 in), signaling a pattern of heightened precipitation that kicks off the season of lush greenery. The increased number of rainy days compared to earlier months illustrates the shift from the relatively dry winter months, indicating a vibrant natural rejuvenation. This trend not only supports the region's agricultural activities but also enriches the local flora, making April a pivotal month in Setouchi's climatic rhythm.

April Precipitation Trends in Setouchi

The chart displays monthly precipitation patterns in Setouchi, 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 Setouchi, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec39551081301311643031732222113852
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Setouchi

April marks a transitional moment in Setouchi, Japan, as humidity begins to stabilize at 74% after a steady decline from January's peak of 82%. This subtle shift indicates the gradual shift from the drier chill of winter into the more humid months ahead. While the humidity level slightly rises again in May, reaching 84%, April's stats suggest a brief respite before the region experiences the full force of summer's high humidity, which peaks at an impressive 92% in July and August. As spring unfolds, Setouchi’s environment prepares for the upcoming warmth, creating a delicate balance that signals the arrival of the vibrant summer season.

April Average Humidity in Setouchi

This chart illustrates the average monthly humidity levels in Setouchi, 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 Setouchi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%73%74%84%86%92%92%87%85%84%82%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Setouchi

In April, Setouchi, Japan, experiences a significant leap in UV intensity, with the UV Index reaching an alarming 11, categorizing it as extreme. This sharp increase from March's 8 serves as a stark reminder of the intensifying sun as spring progresses. The burn time decreases to just 10 minutes, emphasizing the need for protective measures during outdoor activities. Interestingly, May and June maintain this level of extremity at 11 as well, suggesting a consistent trend of heightened UV exposure leading into the summer months. As temperatures rise, it's crucial for residents and visitors alike to stay vigilant against sun damage. For comprehensive information on UV conditions throughout the year, check out the full report at Setouchi UV Index.

Maximum UV Index Levels in Setouchi for April

The chart shows the monthly maximum UV Index (UVI) for Setouchi 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 Setouchi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458111111121110754
Data source: Setouchi 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 Setouchi

As April unfolds, Setouchi, Japan, basks in a delightful 280 hours of sunshine, marking a significant leap from the 259 hours recorded in March. This upward trend continues into May, with sunshine hours peaking at 295, showcasing the region's increasing vibrance as spring fully blooms. The steady rise in daylight during these months not only brightens the landscape but also elevates the spirits of residents and visitors alike. Following May, the summer months bring even more sunshine, with August reaching a dazzling 306 hours. This seasonal progression highlights Setouchi's unique charm, where longer days invite both adventure and relaxation in the stunning coastal scenery.

Monthly Sunshine Duration in Setouchi: April Highlighted

The April sunshine duration represents the total number of hours Setouchi 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.
JanFebMarAprMayJunJulAugSepOctNovDec177h225h259h280h295h279h272h306h248h239h234h213h
Data source: Setouchi April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Setouchi During April

April in Setouchi, Japan, sees a 48% chance of sunny weather, making it a transitional month as spring establishes its presence. This slight uptick from March's 42% hints at the return of pleasant skies, but it remains lower than the 50% average in January and 54% in February. As the blossoms bloom and temperatures rise, the likelihood of sunshine begins to wane in the following months, notably dropping to 31% by May and lingering in the 30s through the summer. Consequently, April presents a unique opportunity to enjoy the blossoms under relatively sunny skies, although visitors should still be prepared for the unpredictable nature of spring weather.

Percentage of Sunny Days in April in Setouchi

The chart illustrates the percentage of sunny days in Setouchi 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 Setouchi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec50%54%42%48%31%26%29%31%33%57%56%60%
Data source: Setouchi April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Setouchi in April

As spring unfolds in Setouchi, Japan, April marks a delightful transition with 13 hours of daylight, signaling the season's vibrant energy. This increase from 11 hours in March not only enhances outdoor activities but also invites the blooming cherry blossoms to thrive under the sun. Following April, May continues the trend with the same generous daylight duration of 13 hours, while June leads into summer with an impressive 14 hours of sunlight. This gradual lengthening of days highlights a pattern of growing daylight from the winter months, where January and February each offered only 10 hours, setting the stage for a joyful embrace of nature as the region awakens from its wintery slumber.

Average Daylight Hours in Setouchi for April

The chart illustrates the variation in daylight duration in Setouchi throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 5m10h 54m11h 58m13h 3m13h 59m14h 26m14h 12m13h 24m12h 21m11h 16m10h 19m9h 50m
Data source: Setouchi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Setouchi

In April, the winds in Setouchi, Japan, gently whisper at an average speed of 4.0 m/s (9 mph), mirroring the breezy conditions of the preceding month. This moderate wind patterns, consistent since March, indicate a transition into the warmer months, where the air feels more inviting. As spring unfolds, the winds remain steady, providing a refreshing touch as flowers bloom and nature awakens. However, a notable shift occurs as we move toward June, where the average wind speed dips to 3.3 m/s (7 mph), making way for a calmer atmosphere during the peak of spring and early summer. This gentle and tranquil spring breeze enhances the beauty of Setouchi, inviting both locals and travelers to enjoy its breathtaking scenery and cultural richness.

Average April Wind Speed in Setouchi

The chart displays monthly wind speed patterns in Setouchi, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.94.84.04.0 m/s4.03.32.93.93.63.74.35.1
Data source: Setouchi April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Setouchi Compares to Other Months

Weather in Setouchi varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Setouchi, focusing on differences in temperature, rainfall, humidity, and UV levels.

April and January present contrasting weather patterns. In April, temperatures range from a mild 4°C (40°F) to a pleasant 21°C (71°F), with an average of 13°C (56°F). This month also sees more rainfall, totaling 130 mm (5.1 in) over about 9 days, and a humidity level of 74%. In contrast, January is colder, with temperatures dipping as low as -2°C (29°F) and averaging 6°C (43°F), while peaking at 14°C (57°F). Precipitation is significantly lower at 39 mm (1.5 in) over just 5 days, and humidity is slightly higher at 82%. For more details on January weather, you can check Setouchi weather in January.

April and February present quite distinct weather patterns. In April, temperatures range from a chilly 4°C (40°F) at night to a pleasantly warm 21°C (71°F) during the day, boasting an average of 13°C (56°F). This month also sees significantly more rain, with about 130 mm (5.1 in) of precipitation over 9 days. In contrast, February experiences colder conditions, with nighttime temperatures dropping to -3°C (28°F) and daytime highs reaching only 15°C (60°F), averaging around 6°C (43°F). Precipitation is much lower in February, at 55 mm (2.2 in) over just 6 days, though humidity is slightly higher at 79%. For more detailed information, you can check Setouchi weather in February.

In comparing the weather between April and March, we observe a notable rise in temperatures. April features minimum temperatures of 4°C (40°F) and averages reaching 13°C (56°F), compared to March's lower average of 9°C (49°F) and minimum of 3°C (37°F). The maximum temperatures also rise in April, peaking at 21°C (71°F) versus March's 18°C (64°F). Precipitation levels are relatively similar, with April receiving 130 mm (5.1 in) over 9 days and March recording 108 mm (4.2 in) across 10 days. Humidity remains comparable, with April at 74% and March slightly lower at 73%. For more detailed insights into March weather, visit Setouchi weather in March.

April and May present a notable transition in weather, with May generally bringing warmer temperatures. In April, temperatures range from a minimum of 4°C (40°F) to a maximum of 21°C (71°F), averaging around 13°C (56°F). Conversely, May sees a higher temperature range, with minimums of 10°C (50°F) and maximums reaching 25°C (77°F), averaging 18°C (65°F). While both months experience similar levels of precipitation, with April at 130 mm (5.1 in) and May slightly higher at 131 mm (5.2 in), May tends to feel more humid, with a humidity level of 84% compared to April's 74%. To explore more about the weather conditions during this period, you can visit Setouchi weather in May.

April and June exhibit distinct weather characteristics. In April, temperatures range from a chilly minimum of 4°C (40°F) to a pleasant maximum of 21°C (71°F), with an average of 13°C (56°F). The month experiences around 130 mm (5.1 in) of precipitation over 9 days and a moderate humidity level of 74%. In contrast, June brings warmer temperatures, with a minimum of 15°C (59°F) and a maximum of 27°C (80°F), averaging 22°C (71°F). The month is wetter, recording 164 mm (6.5 in) of rain spread over 12 days, and higher humidity at 86%. For a more detailed outlook, check out Setouchi weather in June.

In April, the weather is typically mild, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 21°C (71°F), averaging around 13°C (56°F). The month sees moderate precipitation, with about 130 mm (5.1 in) over 9 rainy days, and humidity levels at 74%. In contrast, July experiences a significant increase in temperature, with minimums around 20°C (69°F) and maximums reaching 32°C (91°F), averaging 26°C (78°F). However, it also brings much more rainfall, totaling approximately 303 mm (11.9 in) over 16 days, accompanied by higher humidity levels at 92%. This stark contrast highlights the transition from the cooler, wetter spring of April to the hot and humid summer of July. For more detailed weather insights, refer to Setouchi weather in July.

April and August present quite contrasting weather patterns. In April, temperatures range from a low of 4°C (40°F) to a comfortable average of 13°C (56°F), peaking at a maximum of 21°C (71°F). This month sees an average of 130 mm (5.1 in) of precipitation spread over 9 days, with humidity at 74%. In stark contrast, August offers much warmer temperatures, with minimums starting at 21°C (69°F), an average of 28°C (82°F), and maximum highs reaching 32°C (91°F). Additionally, August experiences greater rainfall, totaling 173 mm (6.8 in) over 12 days and a higher humidity level at 92%. For more details, check out Setouchi weather in August.

April weather is characterized by mild temperatures, with averages ranging from a minimum of 4°C (40°F) to a maximum of 21°C (71°F). The month sees moderate rainfall, totaling around 130 mm (5.1 in) over approximately 9 days, along with a humidity level of 74%. In contrast, September experiences warmer conditions, with temperatures oscillating between a minimum of 17°C (64°F) and a maximum of 31°C (89°F). This month is notably wetter, with precipitation reaching 222 mm (8.7 in) over 13 days and higher humidity at 87%. For more details on the September weather in this region, check out Setouchi weather in September.

April and October present distinct weather characteristics, showcasing the transition between seasons. In April, temperatures range from a minimum of 4°C (40°F) to a maximum of 21°C (71°F), with an average of 13°C (56°F). The month typically sees around 130 mm (5.1 inches) of precipitation across 9 days, coupled with a humidity level of 74%. In contrast, October enjoys warmer temperatures, with a minimum of 12°C (54°F) and a maximum of 27°C (82°F), averaging 19°C (67°F). The month experiences more rainfall, totaling 211 mm (8.3 inches) over 11 days, and higher humidity at 85%. For more specific insights into weather patterns during this month, check out Setouchi weather in October.

April and November present noticeable differences in weather, despite their similar average temperatures. In April, temperatures range from a minimum of 4°C (40°F) to a maximum of 21°C (71°F), accompanied by significant precipitation of 130 mm (5.1 in) over about 9 days, contributing to a more humid environment at 74%. In contrast, November experiences slightly milder temperatures with a minimum of 6°C (43°F) and a maximum of 22°C (71°F), but it sees much less rainfall, totaling only 38 mm (1.5 in) over 5 days, and a higher humidity level of 84%. This makes November generally drier and slightly warmer on average than April. For more detailed information, you can refer to Setouchi weather in November.

When comparing the weather in April and December, it's clear that April experiences milder temperatures, with a minimum of 4°C and an average of 13°C, peaking at 21°C. In contrast, December's temperatures are cooler overall, starting at a minimum of 1°C and averaging 9°C, reaching a maximum of 19°C. Additionally, April sees significantly higher precipitation at 130 mm over 9 days, while December's rainfall is more modest at 52 mm across just 6 days. The humidity is also higher in December at 82%, compared to 74% in April, contributing to a distinctly different feel in the two months. For a closer look at December weather specifics, you can visit Setouchi weather in December.

Compare Setouchi's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Setouchi

As April unfolds in Setouchi, the region experiences a mild and invigorating shift from the chill of winter to the warmth of spring. With temperatures gradually rising, it provides a welcome reprieve from the colder months, offering an average of 13°C accompanied by the occasional peak at 21°C. While there are about 9 days of precipitation, the lovely blooms and vibrant landscapes make it a picturesque time to explore. The humidity hovers around a comfortable 74%, further enhancing the region's refreshing atmosphere. Whether you're enjoying the cherry blossoms or indulging in local festivals, April in Setouchi is a delightful prelude to summer. For more detailed insights into weather patterns, be sure to check out Setouchi Climate.