Last updated: August 21, 2025
April in Onomichi, Japan, brings a delightful mix of springtime warmth and occasional showers. The maximum temperature can reach a pleasant 26°C (79°F), while the average hovers around 15°C (59°F), making it a great time for outdoor activities. However, cooler nights can dip to a fresh 2°C (36°F). Visitors should be prepared for moderate rainfall, totaling about 117 mm (4.6 in) over 8 days, as the humidity lingers at 74%. This vibrant month showcases the blooming beauty of the region, offering a perfect canvas for exploration and enjoyment amid nature's awakening.
In April, Onomichi begins to shed its winter chill and embrace the warmth of spring, with temperatures rising significantly. The month features a minimum of 2°C (36°F), while the average temperature climbs to a comfortable 15°C (59°F), making it a delightful time for outdoor activities. As the days lengthen, the maximum temperature can reach up to 26°C (79°F), offering plenty of sunshine and mild breezes—perfect for exploring the scenic charm of this coastal town. The gradual transition from the cooler temperatures of March to the burgeoning warmth of May marks April as a vibrant and inviting month in Onomichi, enticing both residents and visitors alike with a refreshing spring atmosphere.
In April, Onomichi experiences a notable increase in precipitation, with 117 mm (4.6 in) of rain accumulated over 8 days. This substantial rise follows the previous month's 93 mm (3.7 in), signaling the onset of the wetter spring season. As temperatures warm and nature flourishes, April sets the stage for the monsoon-like conditions that will dominate the summer months, particularly July, which sees a staggering 314 mm (12.4 in) of rainfall. The trend highlights a significant leap in precipitation, reinforcing April's role as a transitional month, balancing the tail-end of winter's dry spell with the approaching deluge of summer.
In April, humidity in Onomichi, Japan, settles at a comfortable 74%, marking a slight increase from March's 73%. This gradual rise hints at the transition into the more humid months ahead. As spring unfolds, residents can expect to experience a pleasant balance of warmth and moderate moisture before the humidity surges in May to 84% and peaks in the summer, reaching an average of 92% in July and August. Notably, April’s humidity is reflective of the overall trend of increasing dampness that characterizes this seaside town as it moves from the crispness of early spring into the lushness of summer.
April in Onomichi, Japan, sees a notable surge in the UV Index, reaching a striking 10, categorizing the exposure as very high. This spike indicates a shift from the moderate levels experienced earlier in the year, with March already hinting at an increase. As a result, outdoor enthusiasts should be mindful, as the burn time decreases to just 15 minutes—a mere fraction of time before skin can start to suffer damage. As the month progresses into May, anticipate an even greater intensity, with the UV Index peaking at 11, categorizing it as extreme. Those venturing outside should stay informed about daily UV levels for safe sun exposure. For more detailed insights, check out the Onomichi UV Index.
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As April rolls into Onomichi, Japan, the city basks in 284 hours of sunshine, a delightful increase from the previous months. This is a clear sign that spring is in full bloom, ushering in a vibrant warmth after the cold winter months. With each passing month, the sun’s embrace grows stronger, beginning with 184 hours of sunlight in January and blossoming into 305 hours by May. The trend continues, peaking in the sun-drenched days of summer, while months like September and October remind us of the gentle ebb towards winter, with sunlight hours gradually receding. April's cheerful rays set the perfect stage for outdoor adventures and the blooming cherry blossoms, symbolizing a beautiful transition from the cooler months to the lively warmth of spring.
In Onomichi, Japan, the likelihood of enjoying sunny weather in April stands at 47%, mirroring the sunlit probabilities of both January and the upcoming October. As spring unfolds, the sunshine potential dips from March's 40%, indicating an optimistic shift as warmer days approach. Although May sees a slight decline to 32%, the overall trend showcases a fluctuating yet promising pattern of sunny days as the year progresses. Interestingly, the sunshine chances are at their peak during the winter months, with December leading at 61%. This pattern suggests that if you're hoping to bask in the sun, April offers a balanced chance amidst an otherwise mixed forecast as summer looms.
As spring unfolds in Onomichi, Japan, the arrival of April brings a delightful increase in daylight, with the sun gracing the sky for an impressive 13 hours. This marks a significant leap from the 11 hours of light observed in March, signaling a shift towards longer and brighter days. Following this trend, May and June maintain the extended daylight, offering residents and visitors alike an opportunity to fully embrace the outdoor beauty of the region. The gentle transition from winter's shorter days into the vibrant warmth of spring and summer showcases nature's rhythm, reminding us that brighter days are ahead as we journey through the year.
In April, the winds in Onomichi, Japan, experience a gentle lull, with an average speed of just 2.9 m/s (6 mph). This marks a transition from the brisker gusts of March, where winds blow at 3.0 m/s (7 mph), and begins a series of milder spring breezes that persist into May. As temperatures rise and nature awakens, the soothing winds create a serene atmosphere, fostering a sense of tranquility. Following April, the annual trend shows a gradual decline in wind speed as the summer months approach, with June cooling to 2.0 m/s (4 mph). This calming pattern of lower wind speeds reflects the gentle ambiance typical of a Japanese spring, inviting residents and visitors alike to savor the seasonal transition.
Weather in Onomichi varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Onomichi, focusing on differences in temperature, rainfall, humidity, and UV levels.
April's weather presents a clear shift towards warmth compared to the chill of January. With average temperatures reaching 15°C (59°F) and highs peaking at 26°C (79°F), April brings a noticeable increase in comfort. In contrast, January's temperatures range significantly lower, with an average of just 6°C (43°F) and chilling lows of -5°C (24°F), making it one of the coldest months. Additionally, April experiences more precipitation at 117 mm (4.6 in) over 8 days, while January sees significantly less with only 40 mm (1.6 in) across 5 days. Interestingly, January also boasts higher humidity levels at 82%, compared to April's 74%. For a more detailed look at January weather, you can check Onomichi weather in January.
April and February present distinctly different weather patterns. In April, temperatures rise significantly, with a minimum of 2°C (36°F) and an average high reaching 26°C (79°F), offering a more temperate climate ideal for outdoor activities. In contrast, February is much cooler, featuring a minimum temperature of -3°C (26°F) and an average high of 20°C (69°F). Additionally, April experiences considerably more precipitation, totaling 117 mm (4.6 in) over 8 days, compared to February's 54 mm (2.1 in) over 6 days. The humidity levels are also slightly higher in February at 79%, compared to April's 74%. For a more detailed look at February weather in Onomichi, visit Onomichi weather in February.
April generally brings milder temperatures compared to March, with average highs reaching 26°C (79°F) and lows of 2°C (36°F), which marks a significant rise from March's 23°C (73°F) maximum and 0°C (32°F) minimum. Additionally, April experiences more precipitation, totaling 117 mm (4.6 in) over 8 days, compared to March's 93 mm (3.7 in) over 9 days. Humidity remains relatively consistent, with April at 74% and March slightly lower at 73%. For a deeper dive into March's climate specifics, you can check out Onomichi weather in March.
April and May exhibit distinct shifts in weather patterns. In April, temperatures range from a minimum of 2°C (36°F) to a comfortable maximum of 26°C (79°F), with an average of 15°C (59°F). The month sees considerable precipitation, totaling 117 mm (4.6 in) over 8 days, and humidity levels hover around 74%. In contrast, May brings warmer temperatures, with a minimum of 7°C (46°F) and a maximum reaching up to 31°C (89°F), averaging 20°C (68°F). While May's total precipitation slightly decreases to 107 mm (4.2 in) over 9 days, humidity rises to 84%, making the air feel more humid. For a detailed look at May's weather in Onomichi, you can explore Onomichi weather in May.
April and June present distinct weather patterns that reflect the transition from spring to summer. In April, temperatures range from a chilly minimum of 2°C (36°F) to a comfortable average of 15°C (59°F), peaking at 26°C (79°F). This month experiences 117 mm (4.6 in) of precipitation over approximately 8 days, with a humidity level of 74%, making it a relatively fresh and wet time of year.
In contrast, June sees a notable increase in both temperature and humidity, with lows of 13°C (56°F) and average highs reaching 23°C (74°F) and even peaking at 32°C (90°F). Rainfall increases to 149 mm (5.9 in) over about 12 days, and humidity rises to 86%, contributing to a much muggier atmosphere. This shift to warmer and wetter weather signals the onset of summer conditions. For more detailed information, you can check Onomichi weather in June.
April and July exhibit strikingly different weather patterns. In April, temperatures range from a cool minimum of 2°C (36°F) to a pleasant average of 15°C (59°F), peaking at a warm 26°C (79°F). This month experiences a moderate level of precipitation at 117 mm (4.6 in) over eight days, with humidity averaging 74%.
In contrast, July is significantly warmer, with temperatures starting at a minimum of 19°C (66°F), reaching an average of 27°C (81°F), and soaring to a maximum of 38°C (100°F). This month is also characterized by much higher precipitation at 314 mm (12.4 in) across 17 days, and humidity levels climb to 92%. For more details on July weather specifically, refer to Onomichi weather in July.
April and August present stark contrasts in weather patterns. In April, temperatures begin to rise with a minimum of 2°C (36°F) and an average of 15°C (59°F), peaking at 26°C (79°F). The month experiences moderate rainfall, totaling 117 mm (4.6 in) over approximately 8 days and a relative humidity of 74%. In contrast, August boasts significantly warmer conditions, with a minimum temperature of 20°C (68°F) and an average high reaching 29°C (85°F), even hitting maximums of 37°C (99°F). This month also sees more rainfall, with 166 mm (6.5 in) spread across about 11 days, coupled with high humidity levels of 92%. For those interested in specific August weather trends, you can find more detailed information here: Onomichi weather in August.
April and September showcase distinctly different weather patterns. In April, temperatures range from a cool 2°C (36°F) at night to a comfortable 26°C (79°F) during the day, with an average of 15°C (59°F). However, it also experiences notable precipitation, totaling 117 mm (4.6 in) over about 8 days, paired with a humidity level of 74%. In contrast, September brings warmer conditions, with minimum temperatures starting at 14°C (58°F) and peaking at 35°C (95°F), averaging 25°C (77°F). This month is also wetter, receiving 174 mm (6.9 in) of rain over approximately 12 days and higher humidity at 87%. For a detailed look at September conditions, visit Onomichi weather in September.
April and October present distinctly different weather patterns. In April, temperatures range from a chilly minimum of 2°C (36°F) to a comfortable maximum of 26°C (79°F), with an average of 15°C (59°F). The month experiences a moderate level of rainfall, totaling 117 mm (4.6 in) over about 8 days, alongside a humidity level of 74%. In contrast, October offers warmer temperatures, with a minimum of 8°C (46°F) and a maximum reaching 32°C (89°F), averaging 19°C (67°F). It also sees a higher precipitation total of 164 mm (6.4 in) over approximately 9 days, accompanied by increased humidity at 85%. For a closer look at October's weather specifics, you can explore Onomichi weather in October.
April and November present distinct differences in weather patterns. In April, temperatures range from a low of 2°C (36°F) to a warm average of 15°C (59°F) and can reach highs of up to 26°C (79°F). This month also experiences more rainfall, with an average precipitation of 117 mm (4.6 in) over 8 days and a humidity level of 74%. On the other hand, November sees cooler temperatures, with a minimum of 1°C (35°F), an average of 13°C (56°F), and a maximum of 24°C (75°F). Importantly, November is much drier, receiving only 31 mm (1.2 in) of precipitation over 4 days, along with slightly higher humidity at 84%. For more details on November's weather, check out Onomichi weather in November.
April and December present distinct weather patterns, reflecting the transition from spring to winter. In April, temperatures range from a minimum of 2°C (36°F) to a maximum of 26°C (79°F), with an average of 15°C (59°F). The month is characterized by a moderate level of precipitation, totaling 117 mm (4.6 in) over about 8 days, and a humidity level of 74%. In contrast, December experiences cooler conditions with temperatures reaching a minimum of 0°C (32°F) and a maximum of 20°C (69°F), averaging just 8°C (46°F). The precipitation in December is significantly lower at 45 mm (1.8 in), occurring over approximately 6 days, with humidity slightly higher at 82%. For more detailed insights, you can check Onomichi weather in December.
April in Onomichi brings a delightful shift in the weather, as temperatures begin to warm up, creating a pleasant atmosphere for outdoor activities. With an average temperature of 15°C (59°F) and peaks reaching up to 26°C (79°F), this month is a refreshing transition from the cooler preceding months. However, don't forget to prepare for occasional spring showers, as April sees about 117 mm (4.6 in) of rainfall across roughly 8 days, contributing to the region's lush scenery. The humidity also rises to 74%, making the air feel comfortably mild. For a deeper dive into Onomichi's diverse weather patterns year-round, visit Onomichi Climate.