Last updated: August 21, 2025
July in Oshima, Japan, is characterized by warm temperatures and high humidity, creating a tropical atmosphere for visitors. The maximum temperature can reach up to 29°C (85°F), while the average hovers around a comfortable 25°C (77°F), with nighttime lows dropping to 20°C (69°F). This month also brings significant rainfall, with 301 mm (11.9 in) of precipitation across approximately 15 days, making it one of the wetter months of the year. With an average humidity level of 93%, visitors should be prepared for a sultry experience, perfect for exploring Oshima's lush landscapes and vibrant culture.
In July, Oshima, Japan, basks in the warmth of summer, with temperatures that see a noticeable rise from the cooler months. With minimum temperatures averaging 20°C (69°F) and averaging 25°C (77°F), the island enjoys a pleasant warmth that perfectly contrasts the lush greenery of the season. The maximum temperature climbs to 29°C (85°F), creating ideal conditions for outdoor activities and coastal adventures. This month marks a distinct transition, as July's warmth is significantly higher compared to the previous months, reflecting the vibrant energy of summer. As the humidity increases along with the heat, visitors can expect a lively atmosphere filled with the sights and sounds of a season in full bloom.
In July, Oshima, Japan, experiences a pronounced increase in precipitation, with an average rainfall of 301 mm (11.9 in) over 15 days—the highest monthly total of the year. Following the trend established in June, where 277 mm fell over 14 days, July marks a peak in the wet season, highlighting the region's transition into its most saturated period. This trend reflects a pattern of escalating rainfall leading up to the height of summer, making Oshima a vibrant, albeit damp, tapestry of nature during this time. The surge in precipitation continues a steady climb from earlier months, with May and June also showing substantial totals, reinforcing the island's lush landscapes and rich ecosystems that flourish under the summer rains.
In Oshima, Japan, July marks the peak of humidity, soaring to a stifling 93%. This significant rise follows the trend of increasing moisture levels throughout the summer months, culminating from a relatively moderate 76% in January to an exceptional 88% by June. As July follows closely on the heels of June's intense humidity, the island experiences a palpable mugginess that persists into August, where humidity levels remain high at 90%. This pattern illustrates not only the sweltering summers in Oshima but also highlights a gradual increase in humidity as the year progresses, with the late spring and summer seasons marked by their high discomfort levels.
In July, Oshima experiences its peak UV index, reaching an extreme value of 12, which significantly reduces safe sun exposure time to just 10 minutes. This alarming trend follows a steady increase from January's moderate index of 4 to a striking 11 in both May and June, demonstrating a shift to markedly intense solar radiation as the summer months approach. The heightened UV levels signify the importance of sun protection, especially as the intensity peaks in July before gradually declining in August. For comprehensive UV index information and safety tips, be sure to check out Oshima UV Index.
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In Oshima, Japan, July shines as a highlight of the summer, offering approximately 273 hours of sunlight. This marks a slight dip from June's 270 hours, yet it still contributes to a series of sun-drenched months that wells up as the year progresses. Following the seasonal trends, August crowned the month with a remarkable 313 hours of sunlight, making it the sunniest month of the year. Meanwhile, the spring months show increasing daylight hours, starting from 189 hours in January and climbing steadily to 293 hours by May. This upward trend illustrates how Oshima embraces the warmth of summer, nurturing a vibrant atmosphere perfect for outdoor adventures and coastal escapades. The gradual decline in sunlight as autumn approaches, starting from September's 254 hours, provides a gentle reminder of the changing seasons while capturing the essence of Oshima's dynamic climate.
In Oshima, Japan, the likelihood of enjoying sunny weather in July is 39%, which is a noticeable dip compared to the brighter days of earlier months. As the summer unfolds, the chances of sunshine start to decline from May's 27%, reaching a low of 25% in June. While July maintains the same chance for sun as August, it's evident that this coastal region doesn't guarantee the bright, clear days one might expect during the peak summer months. Interestingly, the trend shows a steady climb in sunlight as the year progresses from the depths of winter; with January's 54% chance rising to 68% in December. However, July remains a month where the weather may be more unpredictable, making it wise for visitors to consider this variation in their plans.
In Oshima, Japan, the daylight duration experiences a gradual and vibrant shift throughout the year. Starting with a modest 10 hours in January and February, the daylight begins to extend as spring approaches, reaching 11 hours in March. By April and May, the days grow longer, boasting 13 hours of sunshine, which sets the stage for the summer season. June and July delight in a peak of 14 hours of daylight, offering ample time for outdoor activities under the sun. As summer fades into early autumn, the daylight begins to recede slightly, dropping to 13 hours in August and further to 12 hours in September. The trend continues as fall sets in, with daylight diminishing until it reaches its low point of 9 hours in December. This cyclical pattern highlights the beautiful transition of seasons in Oshima, showcasing nature's rhythm throughout the year.
In July, Oshima experiences a calm, gentle breeze with an average wind speed of 5.0 m/s (11 mph), matching the serene conditions of June. This notable dip in wind speed from the brisker months of January to May, where averages hovered around 9.3 to 9.4 m/s (21 mph), reflects the region's shift towards summer tranquility. As the temperatures rise, the winds become milder, enhancing the island's relaxed atmosphere. However, as summer progresses into August, a slight uptick to 6.8 m/s (15 mph) signals a return to more invigorating breezes, foreshadowing the vibrant seasonal transitions that define Oshima's coastal charm.
Weather in Oshima varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Oshima, focusing on differences in temperature, rainfall, humidity, and UV levels.
July and January present a stark contrast in weather conditions. In July, temperatures range from a minimum of 20°C (69°F) to a pleasant average of 25°C (77°F), reaching a maximum of 29°C (85°F). The month is characterized by high humidity at 93% and significant rainfall, with 301 mm (11.9 in) of precipitation over 15 days. In contrast, January experiences much cooler temperatures, averaging around 10°C (50°F) with a minimum of 2°C (36°F) and a maximum of 18°C (65°F). This winter month has notably less precipitation at 91 mm (3.6 in) spread over just 9 days, along with lower humidity levels at 76%. For more detailed information about January weather, you can check Oshima weather in January.
July and February present striking contrasts in weather. July boasts warmer temperatures, with daily averages hovering around 25°C (77°F) and highs reaching up to 29°C (85°F), while February experiences cooler conditions, averaging just 10°C (50°F) and peaking at 19°C (66°F). In terms of precipitation, July is significantly wetter, receiving 301 mm (11.9 in) over 15 days, compared to February's 89 mm (3.5 in) spread across 11 days. Additionally, humidity levels are much higher in July at 93%, compared to February's 74%, making the summer month feel much more oppressive. For more details on February weather specific to Oshima, you can visit Oshima weather in February.
When comparing the weather in July and March, there is a noticeable contrast in temperature and humidity levels. July boasts warmer conditions, with average temperatures around 25°C (77°F) and highs reaching up to 29°C (85°F), accompanied by high humidity at 93%. In contrast, March sees cooler temperatures, with an average of 13°C (55°F) and a maximum of only 19°C (66°F). Although March experiences slightly less precipitation at 201 mm (7.9 in) over 14 days, its humidity level is significantly lower, at 70%. For more detailed information, you can check Oshima weather in March.
In comparing the weather of July and April, it's clear that July is significantly warmer and more humid. With average temperatures reaching 25°C (77°F) and maximums peaking at 29°C (85°F), July offers a much hotter experience than April's milder average of 15°C (59°F) and maximum of 21°C (71°F). Additionally, July sees a higher level of precipitation, with 301 mm (11.9 in) falling over approximately 15 days, in contrast to April's 157 mm (6.2 in) over 12 days. Humidity also plays a notable role, as July's humidity levels soar to 93%, compared to April's 74%. For a deeper look into April's specific conditions, you can explore Oshima weather in April.
In comparing the weather between July and May, July boasts significantly warmer temperatures with a minimum of 20°C (69°F) and an average of 25°C (77°F), compared to May's cooler averages where temperatures range from a minimum of 13°C (56°F) to an average of 19°C (66°F). Additionally, July experiences higher humidity at 93%, in contrast to May's 81%, making it feel much more muggy. Precipitation is also more frequent in July, with 301 mm (11.9 in) falling over 15 days, while May sees lower rainfall at 198 mm (7.8 in) across 11 days. For more detailed information, you can check Oshima weather in May.
In comparing the weather of July and June, July is notably warmer, with average temperatures rising from 22°C (71°F) in June to 25°C (77°F) in July. The minimum temperatures also increase from 17°C (63°F) in June to 20°C (69°F) in July. Meanwhile, July experiences more precipitation, totaling 301 mm (11.9 in) over 15 days, compared to June's 277 mm (10.9 in) and 14 rainy days. Additionally, July's humidity is slightly higher at 93%, compared to June's 88%. For more details on weather patterns, you can check Oshima weather in June.
In comparing the weather of July and August, July tends to be slightly cooler, with an average temperature of 25°C (77°F), while August sees a rise in temperatures, averaging 27°C (80°F). Both months experience a maximum temperature of 29°C (85°F), but July is marked by significantly higher precipitation at 301 mm (11.9 in) over 15 days compared to August's 155 mm (6.1 in) across 13 days. Humidity levels are also close, with July at 93% and August at 90%. For more detailed insights into August weather, you can check Oshima weather in August.
In comparing the weather between July and September, both months exhibit similar average temperatures, hovering around 25°C (77°F), with maximum temperatures slightly varying—July reaching up to 29°C (85°F) and September maxing out at 29°C (84°F). However, July is notably wetter, receiving 301 mm (11.9 in) of precipitation over 15 days, compared to September’s 249 mm (9.8 in) spread across 19 days. Moreover, July experiences higher humidity levels at 93%, whereas September sees a slightly lower humidity of 86%. For more detailed insights on September weather patterns, you can check out Oshima weather in September.
July and October present contrasting yet captivating weather patterns. In July, temperatures typically range from a minimum of 20°C (69°F) to a maximum of 29°C (85°F), with an average of 25°C (77°F). The month is characterized by high humidity at 93% and significant rainfall, totaling 301 mm (11.9 in) over approximately 15 days. In contrast, October sees slightly cooler temperatures, with a minimum of 15°C (59°F), an average of 21°C (70°F), and a maximum of 27°C (80°F). While October is also rainy, it experiences a higher total precipitation of 339 mm (13.4 in) spread over 18 days, coupled with reduced humidity at 83%. For a deeper look into October weather patterns, visit Oshima weather in October.
In July, the weather is characterized by warm temperatures, with a minimum of 20°C (69°F) and an average of 25°C (77°F), peaking at a maximum of 29°C (85°F). This month also experiences significant precipitation, totaling 301 mm (11.9 in) over 15 days, which contributes to a high humidity level of 93%. In contrast, November brings much cooler temperatures, with a minimum of 8°C (47°F) and an average of 17°C (63°F), reaching a maximum of 23°C (73°F). Precipitation in November is notably lower at 152 mm (6.0 in), yet it still falls over 15 days, accompanied by a slightly reduced humidity level of 80%. For more details, check Oshima weather in November.
In July, the weather is warm and humid, with average temperatures reaching around 25°C (77°F) and maximums peaking at 29°C (85°F). This month also sees considerable rainfall, with about 301 mm (11.9 in) spread over 15 days, resulting in a humidity level of 93%. In contrast, December offers much cooler temperatures, with an average of 12°C (55°F) and highs of 21°C (71°F). Precipitation drops significantly to 95 mm (3.7 in) over just 12 days, and humidity decreases to 78%. For more details on the conditions in December, you can check Oshima weather in December.
July in Oshima offers a unique blend of warmth and humidity, with temperatures typically peaking at a refreshing 29°C and an average of 25°C. Unlike the cooler months, this summer peak brings a vibrant atmosphere filled with the buzz of life. However, it's important to note that this heat is accompanied by significant rainfall, with about half the month experiencing precipitation, leading to a muggy humidity level of around 93%. This combination of warmth and wetness sets July apart from other months, making it a distinct time for experiencing the island's lush landscapes and vibrant ecosystems. For more detailed insights into weather patterns throughout the year, visit Oshima Climate.