Last updated: August 21, 2025
July in Hiroshima, Japan is characterized by warm temperatures and high humidity, making it a vibrant summer month. With daily highs peaking at 35°C (96°F) and an average temperature of 26°C (78°F), residents and visitors alike can expect a balmy climate. However, the weather is also marked by substantial rainfall, accumulating to 391 mm (15.4 in) over 19 days, contributing to the lush, green landscapes for which the region is known. The 95% humidity adds a tropical feel, intensifying the summer experience. Embrace the energy of Hiroshima in July, but don't forget your umbrella!
In Hiroshima during July, temperatures soar, marking the peak of summer with a notable minimum of 17°C (64°F), an average of 26°C (78°F), and highs reaching up to an impressive 35°C (96°F). This transition from June to July showcases a clear upward trend in warmth, with average temperatures jumping significantly—indicative of the humid subtropical climate the region experiences. As the city basks in the summer heat, the vibrant atmosphere invites locals and tourists alike to enjoy outdoor activities and cultural events, offering a perfect backdrop for soaking up the sights and flavors of Hiroshima.
July in Hiroshima, Japan, is characterized by a dramatic surge in precipitation, with an impressive 391 mm (15.4 in) of rain falling over 19 days. This substantial amount marks a peak in the city's rainy season, contributing significantly to the monthly average of rainfall compared to the rest of the year. The wettest month is clearly July, overshadowing June's 177 mm (7.0 in) and showcasing a notable increase in both quantity and frequency. Following the trend established in previous months, July's rainfall is a crucial element for the region's lush greenery, albeit it comes with the challenges of humidity and potential flooding. As the month transitions into August, the precipitation remains high, albeit more moderate at 257 mm (10.1 in), suggesting that while July is the zenith of rainfall, the influence of the rainy season lingers on.
In Hiroshima, July is characterized by a peak in humidity, reaching a staggering 95%. This notable rise follows a steady increase throughout the warmer months, beginning with 84% in May and escalating further to 88% in June. As summer sets in, the humidity remains high, only slightly declining to 93% in August. This trend reflects the region's tropical climate, where the sultry air often presents a challenging environment, particularly for those who are unaccustomed to such levels of moisture. Overall, the consistent highs in humidity from late spring through summer illustrate Hiroshima's warm and muggy weather patterns that define this vibrant city during the peak of summer.
In Hiroshima, Japan, the UV Index in July peaks at 12, placing it in the extreme exposure category, with a burn time of just 10 minutes. This month signals the height of summer, where the UV intensity escalates from moderate levels in January and February to significantly higher levels, reaching very high by March. The trend continues into April, May, and June, maintaining an extreme classification, which is a precursor for the peak July and August readings. As residents and visitors flock to the region during these sun-drenched months, it’s crucial to stay vigilant against skin damage by seeking shade, wearing protective clothing, and applying sunscreen frequently. For more information on UV levels throughout the year, explore the details at Hiroshima UV Index.
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In Hiroshima, Japan, July offers a vibrant burst of sunshine, boasting 281 hours of glorious daylight. This month stands as a slight dip compared to the sun-drenched August, when the city basks in a dazzling 308 hours of light, but it is still a beacon of brightness following the lush, green months of April and May, which see a steady increase in sunshine. From the chilly beginnings of the year, with just 184 hours in January, the trend clearly ascends towards the summer months, illustrating a clear transition from winter's grasp to the warmth of summer. July's sunshine encapsulates the heart of summer, bridging the lush abundance of vegetation and the anticipation of the vibrant festivals that light up this historic city. As the days grow shorter from here, the month’s warmth remains a cherished highlight of Hiroshima's annual climate cycle.
In Hiroshima, the month of July typically experiences a modest chance of sunshine, with sunlight gracing the city only about 22% of the time. This marks a noticeable dip from June's 25%, signifying the onset of the humid summer season where cloudy skies often dominate. As temperatures rise, the likelihood of clear days diminishes, a trend that continues into August. In contrast, residents can look forward to more favorable weather conditions in later months, with chances of sun climbing back up to 56% in October. Overall, while July may not be the sunniest month, it sets the stage for the vibrant summer experiences that Hiroshima has to offer.
In Hiroshima, July marks a bright peak in daylight duration, with 14 hours of sun illuminating the long summer days. This trend of increasing daylight begins in March, as the city transitions from winter’s shorter days, gradually basking in a growing glow that reaches its zenith during the summer months. Following July, daylight begins to gently recede, with August bringing 13 hours and September dropping to 12 hours. As autumn approaches, daylight gradually wanes, echoing the seasonal rhythm that invites the peaceful transition from the vibrant summer to the serene embrace of cooler months.
In Hiroshima during July, the winds are gentle, averaging around 2.0 m/s (4 mph). This slight increase from June's calm breezes reflects a notable trend in the region—as summer deepens, wind speeds tend to rise slightly but remain relatively low compared to other months like January and December, which often see stronger gusts of up to 3.0 m/s (7 mph). As the humidity increases, these mild winds provide a refreshing respite, contributing to the city's lively yet serene summer atmosphere. Looking ahead to August, winds pick up slightly to 2.4 m/s (5 mph), hinting at the seasonal transition as Hiroshima prepares to embrace the summer's full embrace.
Weather in Hiroshima varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Hiroshima, focusing on differences in temperature, rainfall, humidity, and UV levels.
July and January present stark contrasts in weather. In July, temperatures soar with a minimum of 17°C (64°F) and an average high of 35°C (96°F), accompanied by high humidity levels around 95%, creating a sweltering atmosphere. Furthermore, July experiences significant precipitation, totaling 391 mm (15.4 in) over 19 days. In contrast, January brings much cooler temperatures, with a low of -7°C (20°F) and an average high of just 14°C (58°F). Precipitation drops to 54 mm (2.1 in) over 9 days, and humidity falls to 76%, resulting in a much drier and frosty winter environment. For more detailed information, you can check out Hiroshima weather in January.
In July, the weather is characterized by warm temperatures, with a minimum of 17°C (64°F), an average of 26°C (78°F), and a maximum reaching up to 35°C (96°F). High humidity levels at 95% and significant rainfall, averaging 391 mm (15.4 in) over 19 days, contribute to a sultry atmosphere.
In contrast, February features much cooler conditions, with temperatures ranging from a minimum of -7°C (19°F) to a maximum of 20°C (69°F) and an average of just 5°C (41°F). Precipitation is considerably lower at 67 mm (2.6 in) spread over 9 days, and the humidity drops to 72%. This stark difference in climate highlights the dramatic seasonal transition between the two months. For more detailed information, you can visit Hiroshima weather in February.
The weather in July contrasts sharply with that of March in terms of temperature and humidity. In July, temperatures soar, with averages reaching 26°C (78°F) and maximums hitting as high as 35°C (96°F), accompanied by high humidity levels of 95%. Additionally, July experiences significant precipitation, with 391 mm (15.4 in) over 19 days. In contrast, March offers a much cooler climate, with temperatures averaging just 9°C (48°F) and a maximum of 22°C (71°F). Precipitation in March is much lower at 120 mm (4.7 in) over 12 days, and the humidity is notably lower at 69%. For a more detailed view of the climate during March, you can visit Hiroshima weather in March.
July and April showcase contrasting weather patterns. In July, temperatures soar with a minimum of 17°C (64°F) and a peak reaching 35°C (96°F), averaging a warm 26°C (78°F). This month is characterized by high humidity at 95% and significant rainfall, with 391 mm (15.4 in) spread over 19 days, creating a muggy atmosphere. In contrast, April experiences much cooler conditions, where temperatures range from a chilly -1°C (31°F) to a pleasant maximum of 26°C (79°F), averaging around 13°C (56°F). The month sees significantly less rainfall, totaling 128 mm (5.0 in) over just 9 days, and lower humidity at 75%. For a closer look at April's weather specifics, check out Hiroshima weather in April.
In comparing the weather between May and July, July is significantly warmer, with average temperatures reaching 26°C (78°F), while May's averages are a cooler 18°C (65°F). July experiences more extreme high temperatures as well, peaking at 35°C (96°F), compared to May's maximum of 30°C (86°F). Additionally, July is characterized by much higher precipitation levels at 391 mm (15.4 in) over 19 days, compared to May's 121 mm (4.8 in) over just 9 days. Humidity levels are also higher in July at 95%, compared to May's 84%. For more details on May's climate, check out Hiroshima weather in May.
In comparing the weather of July and June, July typically experiences warmer temperatures, with a minimum of 17°C (64°F) and an average of 26°C (78°F), peaking at 35°C (96°F). In contrast, June's temperatures are milder, with a minimum of 11°C (52°F), an average of 21°C (71°F), and a maximum of 30°C (87°F). Additionally, July is characterized by significantly higher precipitation, amounting to 391 mm (15.4 in) over 19 rainy days, compared to June's 177 mm (7.0 in) spread across 14 days. The humidity also rises in July, reaching 95%, while June has a more moderate level at 88%. For more details on the weather patterns, you can check Hiroshima weather in June.
In comparing the weather between July and August, we see a slight increase in average temperature, with July averaging 26°C (78°F) and August climbing to 27°C (81°F). Both months experience high maximum temperatures, with July peaking at 35°C (96°F) and August reaching a maximum of 36°C (97°F). However, July is notably wetter, receiving 391 mm (15.4 in) of precipitation over 19 days, compared to August's 257 mm (10.1 in) over just 14 days. Humidity levels are also slightly lower in August at 93%, down from July's 95%. For detailed information, you can refer to Hiroshima weather in August.
In comparing the weather between July and September, July typically experiences warmer temperatures, with a minimum of 17°C (64°F) and an average high of 35°C (96°F), while September is slightly cooler, starting with a minimum of 12°C (54°F) and reaching a maximum of 33°C (92°F). July is also characterized by significant rainfall, receiving 391 mm (15.4 in) over 19 days, leading to high humidity levels around 95%. In contrast, September sees a reduction in precipitation to 230 mm (9.1 in) across 14 days, alongside lower humidity at 84%. For a detailed overview of September’s conditions, you can visit Hiroshima weather in September.
In July, the weather is characterized by high temperatures, with minimums around 17°C (64°F) and maximums reaching up to 35°C (96°F), creating a warm and humid atmosphere with an average of 26°C (78°F). However, this month also brings considerable rainfall, totaling 391 mm (15.4 in) over 19 days, resulting in a steamy climate with 95% humidity. In contrast, October experiences a significant drop in temperatures, with minimums of 5°C (41°F) and maximums of 28°C (84°F), averaging 17°C (63°F). The month is drier, with only 164 mm (6.5 in) of precipitation over 11 days and lower humidity at 79%. For more detailed insights into the October climate, you can explore Hiroshima weather in October.
July and November present a stark contrast in weather conditions. In July, temperatures soar with an average of 26°C (78°F) and highs reaching up to 35°C (96°F), enveloped in high humidity at 95%. This month also experiences significant rainfall, with around 391 mm (15.4 in) spread over 19 days. In contrast, November sees much cooler temperatures, with averages dropping to 11°C (52°F) and maximums of 23°C (75°F), while the humidity decreases to 76%. Additionally, November has significantly less rainfall, totaling only 39 mm (1.5 in) over 5 days. For more details, you can explore Hiroshima weather in November.
In July, Hiroshima experiences warm temperatures ranging from a minimum of 17°C (64°F) to a maximum of 35°C (96°F), with an average of 26°C (78°F). The month is characterized by high humidity levels of 95% and significant rainfall, accumulating 391 mm (15.4 in) over 19 days. In stark contrast, December brings much cooler conditions, with temperatures dipping as low as -2°C (28°F) and peaking at 20°C (68°F), averaging around 6°C (43°F). Precipitation is also lower in December, with only 66 mm (2.6 in) over 10 days and humidity levels dropping to 75%. For more detailed information about December weather, you can visit Hiroshima weather in December.
In July, Hiroshima experiences significantly warmer and more humid weather compared to other months, with temperatures soaring to their peak and humidity levels reaching up to 95%. This month is characterized by frequent rainfall, with a notable number of precipitation days contributing to the lush, vibrant landscapes typical of summer. While the warmth invites outdoor exploration, it's essential to be prepared for the frequent showers that can sometimes disrupt plans. For a comprehensive overview of what to expect throughout the year, be sure to check out Hiroshima Climate.