Last updated: August 21, 2025
In July, Onomichi, Japan experiences a warm and humid climate, with daily maximum temperatures reaching 38°C (100°F) and an average temperature of 27°C (81°F). Nighttime offers a respite with minimum temperatures around 19°C (66°F). The month is marked by significant rainfall, totaling 314 mm (12.4 in) over 17 days, resulting in a notable humidity level of 92%. This combination of high temperatures and persistent moisture creates a lush and vibrant atmosphere, perfect for experiencing the region's natural beauty and cultural attractions.
In July, Onomichi, Japan, experiences a significant surge in temperatures, marking the height of summer. With a minimum temperature of 19°C (66°F), daily highs soar to a scorching 38°C (100°F), creating a dramatic contrast to the cooler months. The average temperature settles at a comfortable 27°C (81°F), perfect for enjoying outdoor activities and exploring the stunning landscapes. As the humidity rises alongside these temperatures, July radiates a vibrant energy, making it a prime time for festivals and cultural celebrations, where locals and visitors alike relish the warmth and lively atmosphere. This month truly embodies the essence of summer in Onomichi, inviting everyone to soak in the sun while admiring the picturesque scenery.
In Onomichi, Japan, July stands out as the wettest month of the year, with a staggering 314 mm (12.4 in) of precipitation, significantly surpassing the rainfall of other months. This deluge occurs over 17 days, marking a substantial increase from the 12 days seen in June, illustrating the onset of the summer monsoon. The dramatic spike in July precipitation compared to June’s 149 mm (5.9 in) hints at the region's transition into a season characterized by heavy rainfall, making it a pivotal time for both agriculture and local water resources. As summer unfolds, the combination of ample precipitation days and increased rainfall sets the stage for lush greenery, yet also calls for preparedness against the challenges posed by flooding.
In July, Onomichi, Japan, experiences a peak in humidity, soaring to an impressive 92%. This significant rise follows a steady increase from June's 86%, highlighting the onset of the summer season when the air becomes notably thick and heavy with moisture. Interestingly, the trend of high humidity continues into August, maintaining that same 92% level, suggesting a sultry atmosphere that characterizes these months. Overall, the data reveals a clear pattern: while the air is comfortably demure in the winter months of January and February, it gradually intensifies as spring and summer approach, culminating in the steamy July and August conditions that define Onomichi's warmest season.
In July, Onomichi, Japan, experiences a peak UV Index of 12, landing it in the extreme exposure category. This signals a significant trend, as the UV Index rises sharply from a moderate 4 in January to an alarming level that requires careful sun protection, with a burn time of only 10 minutes. June and August match this intensity, suggesting that sun safety is paramount during this summer period when UV radiation is at its most aggressive. As you plan your outdoor activities, be mindful of the escalating UV levels each month, especially in the summer months. For more information on UV levels throughout the year, visit Onomichi UV Index.
UV Risk Categories
July in Onomichi, Japan, boasts a delightful average of 284 hours of sunshine, contributing to the region's vibrant summer atmosphere. As we transition from June's 292 hours, the sunshine slightly dips yet remains plentiful, maintaining a warm embrace throughout the month. This trend of abundant light continues into August, which shines even brighter with 309 hours, showcasing a peak in summer luminosity. Overall, the sun-drenched months from May through August create a beautiful stretch of bright days, encouraging outdoor adventures and a festive spirit, while the gradual decrease in daylight as fall approaches reminds us of the changing seasons.
In Onomichi, Japan, the likelihood of sunny weather takes a noticeable dip in July, with only a 24% chance of clear skies. This trend marks a significant decline from the sunnier winter months, such as December, boasting a 61% chance, and February at 54%. As summer approaches, the probability of sunshine fluctuates, peaking slightly in August at 28%, yet still highlighting the contrast between the bright and cloudier seasons. With July's lower sunshine expectancy, visitors may want to prepare for a mix of overcast days, making it essential to embrace the beauty of this charming town regardless of the weather.
In Onomichi, Japan, the evolution of daylight duration throughout the year reveals a captivating rhythm of nature. As winter recedes, daylight begins to steadily increase from a modest 10 hours in January and February, gradually stretching to 13 hours by April and May. This uplifting trend peaks in July, where residents bask in 14 hours of sunlight, enjoying long, vibrant days perfect for exploring the picturesque landscapes. As summer wanes, daylight starts its gentle decline, tapering to 13 hours in August and settling into the softer tones of autumn with 12 hours in September. By the time October arrives, the days shorten to 11 hours, leading into the cooler months, where daylight gradually diminishes again to 9 hours by December. This cyclical pattern not only highlights the beauty of changing seasons but also serves as a reminder of the rich experiences awaiting in each period.
In July, Onomichi, Japan experiences a subtle shift in average wind speed, registering at 2.4 m/s (5 mph). This marks a slight increase from the notably calm conditions of June, where the winds softened to 2.0 m/s (4 mph). As summer takes hold, the gentle breezes in July create a refreshing backdrop for the city's vibrant energy, a contrast to the more robust gusts of the winter months. Notably, the wind speeds during these peak summer months remain consistent with both August and September, suggesting a serene, stable summer atmosphere that encourages leisurely strolls and outdoor explorations. Overall, the gentle winds in July embody the essence of Onomichi’s laid-back summer vibe, inviting both locals and visitors to unwind amidst its picturesque coastal scenery.
Weather in Onomichi varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Onomichi, focusing on differences in temperature, rainfall, humidity, and UV levels.
The weather in July and January presents a stark contrast in Onomichi. July boasts warm temperatures, with a minimum of 19°C (66°F) and an average of 27°C (81°F), peaking at a scorching 38°C (100°F). This month experiences substantial rainfall, totaling 314 mm (12.4 in) over 17 days, accompanied by high humidity at 92%. In contrast, January brings much cooler conditions, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 15°C (59°F), averaging only 6°C (43°F). Precipitation is significantly lower at 40 mm (1.6 in) over just 5 days, and humidity levels, while still high, are slightly lower at 82%. For more details about January's climate, you can check Onomichi weather in January.
July and February present stark contrasts in weather. In July, temperatures soar with a minimum of 19°C (66°F) and an average of 27°C (81°F), peaking at a scorching 38°C (100°F). Accompanying this heat is significant rainfall, totaling 314 mm (12.4 in) over 17 days, coupled with high humidity levels reaching 92%. In contrast, February offers a much cooler climate with minimum temperatures dropping to -3°C (26°F) and average highs of only 6°C (44°F), reaching a maximum of 20°C (69°F). Precipitation is minimal during this month, amounting to just 54 mm (2.1 in) over 6 days, with humidity slightly lower at 79%. For a more detailed look at February weather, you can visit Onomichi weather in February.
July and March exhibit stark contrasts in weather conditions. In July, the temperature ranges from a minimum of 19°C (66°F) to a scorching maximum of 38°C (100°F), with an average of 27°C (81°F). This month is characterized by high humidity levels at 92% and significant rainfall, accumulating 314 mm (12.4 in) over 17 days. In contrast, March presents a much cooler climate, with temperatures ranging from a chilly 0°C (32°F) to a pleasant maximum of 23°C (73°F) and an average of 10°C (51°F). Additionally, March experiences far less precipitation at 93 mm (3.7 in) across only 9 days and lower humidity at 73%. For more details, you can visit Onomichi weather in March. Overall, July is notably hotter and wetter compared to the cooler and drier conditions of March.
The weather in July is significantly warmer and more humid compared to April. In July, temperatures range from a minimum of 19°C (66°F) to a scorching maximum of 38°C (100°F), with an average of 27°C (81°F). The month also experiences high humidity levels at 92% and substantial rainfall, averaging 314 mm (12.4 in) over 17 days. In contrast, April offers a milder climate, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 26°C (79°F), and an average temperature of 15°C (59°F). Precipitation during April is much lower at 117 mm (4.6 in) over just 8 days, and the humidity is more manageable at 74%. For more details, check out Onomichi weather in April.
When comparing the weather in July and May, July tends to be significantly warmer and more humid. In July, temperatures range from a comfortable minimum of 19°C (66°F) to a scorching maximum of 38°C (100°F), with an average of 27°C (81°F). In contrast, May offers a cooler experience with temperatures ranging from 7°C (46°F) to a maximum of 31°C (89°F), averaging 20°C (68°F). Additionally, July sees a substantial increase in precipitation, with 314 mm (12.4 in) over 17 days compared to May's 107 mm (4.2 in) over just 9 days. The humidity also rises in July to 92%, making the air feel much heavier compared to May's 84%. For more details, check out Onomichi weather in May.
Comparing the weather between June and July reveals noticeable differences in both temperature and precipitation levels. In June, temperatures range from a comfortable minimum of 13°C (56°F) to an average of 23°C (74°F), peaking at 32°C (90°F). The month sees around 149 mm (5.9 in) of rainfall over 12 days, accompanied by a humidity level of 86%. In contrast, July experiences significantly warmer weather, with minimum temperatures starting at 19°C (66°F) and average highs reaching a scorching 27°C (81°F) and maximums soaring up to 38°C (100°F). This month also witnesses increased rainfall, with 314 mm (12.4 in) spread over 17 days, and higher humidity at 92%. For more detailed weather insights, check Onomichi weather in June.
July and August display a subtle transition in weather patterns, with July experiencing slightly lower average temperatures but higher maximums. In July, temperatures range from a minimum of 19°C (66°F) to a maximum of 38°C (100°F), accompanied by significant rainfall totaling 314 mm (12.4 in) over 17 days. In contrast, August sees a slight increase in the average temperature, peaking at 37°C (99°F) and boasting a more comfortable minimum of 20°C (68°F). Moreover, precipitation decreases dramatically to 166 mm (6.5 in) over just 11 days, maintaining consistent humidity levels at 92%. For a more detailed look at August weather, check out Onomichi weather in August.
In comparing the weather between July and September, July is characterized by significantly higher temperatures, with an average of 27°C (81°F) and peak highs reaching 38°C (100°F). In contrast, September offers a cooler average temperature of 25°C (77°F) and a maximum of 35°C (95°F). Additionally, July experiences much more rainfall, with 314 mm (12.4 in) over 17 days, compared to September's 174 mm (6.9 in) over just 12 days. Humidity levels also remain high in both months, with July at 92% and September slightly lower at 87%. For more detailed insights, you can check Onomichi weather in September.
July and October present contrasting weather patterns. In July, temperatures soar with a minimum of 19°C (66°F) and an average high reaching 38°C (100°F), accompanied by high humidity levels of 92%. This month also sees significant rainfall, with 314 mm (12.4 in) of precipitation over 17 days. In contrast, October offers a much cooler climate, with a minimum temperature of 8°C (46°F) and a pleasant average of 19°C (67°F), peaking at 32°C (89°F). Rainfall decreases substantially in October to 164 mm (6.4 in) spread over only 9 days, and humidity levels drop slightly to 85%. For more details on October's specific conditions, you can check Onomichi weather in October.
July and November present stark contrasts in weather conditions. In July, temperatures range from a minimum of 19°C (66°F) to a maximum of 38°C (100°F), with an average of 27°C (81°F), creating a hot and humid atmosphere with 92% humidity. The month is also quite rainy, receiving an average of 314 mm (12.4 in) of precipitation over 17 days. In contrast, November sees a significant drop in temperature, with a minimum of 1°C (35°F), an average of 13°C (56°F), and a maximum of 24°C (75°F). Precipitation is considerably lower at 31 mm (1.2 in) over just 4 days, coupled with a humidity level of 84%. For more specific insights, you can explore Onomichi weather in November.
July and December present contrasting weather conditions. In July, temperatures soar with minimums around 19°C (66°F) and averages reaching up to 27°C (81°F), peaking at 38°C (100°F). This month also sees high humidity levels of 92% and significant rainfall, with 314 mm (12.4 in) falling across 17 days. In stark contrast, December experiences much cooler weather, featuring minimum temperatures of 0°C (32°F) and an average of 8°C (46°F), while the maximum reaches only 20°C (69°F). Precipitation is considerably less during December, totaling just 45 mm (1.8 in) over 6 days, accompanied by lower humidity levels of 82%. For more specific details about December weather, you can visit Onomichi weather in December.
In July, Onomichi experiences a shift into the peak of summer, with higher temperatures and elevated humidity making it feel particularly warm and muggy compared to other months. This month is characterized by more frequent rainfall, with nearly half of July seeing precipitation, a notable contrast to the drier spells earlier in the year. The lush landscapes, brought to life by consistent moisture, create a vibrant backdrop for outdoor activities. As the warmth envelops the region, those planning their visit are encouraged to consider the weather patterns, so they can make the most of their time. For a deeper dive into Onomichi's weather nuances, visit Onomichi Climate.