Last updated: August 21, 2025
July in Osaka, Japan brings a warm embrace, with maximum temperatures soaring up to 37°C (99°F) and an average of 28°C (82°F), creating a sultry atmosphere. The month is not just hot; it is also humid, with humidity levels reaching a sticky 93%. Rainfall is plentiful, accumulating 282 mm (11.1 in) over approximately 18 days, making it essential for visitors to prepare for both the sun and sudden downpours. Embrace the vibrancy of summer in Osaka, where the heat is matched only by the city's lively spirit.
July in Osaka, Japan, ushers in the peak of summer, marked by significant warmth as temperatures reach an average of 28°C (82°F) and can soar to a sweltering 37°C (99°F). The month signifies a stark contrast to the cooler winter months, where January's temperatures linger around freezing. As the minimum temperature settles at a pleasant 20°C (69°F), visitors can expect balmy evenings perfect for nighttime strolls through vibrant streets. Humidity rises alongside the heat, making July not only the hottest month but also a time when Osaka buzzes with energy, outdoor festivals, and culinary delights amidst the summer sun.
In July, Osaka experiences a significant surge in precipitation, with an impressive 282 mm (11.1 in) of rain falling over 18 days. This marks a stark contrast to the preceding months, where rainfall gradually increased, peaking in mid-summer. Notably, July's deluge accounts for nearly double the amount seen in June, indicating the onset of the monsoon season. The rising humidity and frequent showers create a vibrant, lush landscape, but also underscore the tendency for unpredictable weather during this month. Overall, July stands out as Osaka's wettest month, emphasizing the dramatic shift in climatic conditions as summer progresses.
In July, Osaka experiences its peak humidity at a staggering 93%, making it one of the most muggy months of the year. This rise in moisture follows a trend that begins in the spring; with April's 76% gradually escalating to June's 87%. As summer fully sets in, the humidity stays notably high, with August remaining close at 91%. Interestingly, the year starts off with lower levels, peaking in mid- to late-summer before gently declining as autumn approaches. This consistent increase underscores the area's tropical influence, creating a warm, sticky atmosphere that characterizes Osaka's summer.
In July, Osaka experiences one of its highest UV Index readings at 12, which falls into the extreme exposure category. This intensifying trend throughout the summer months, with consistent UV Index values of 11 or higher from April through August, underscores the importance of sun protection during this time. Players of outdoor activities should be particularly cautious, as the burn time is a mere 10 minutes in July—an indicator of how quickly skin can be affected. As temperatures rise and sunlight strengthens, awareness of UV levels becomes critical for anyone enjoying Osaka's vibrant outdoor scene. For detailed insights and monthly trends, check out Osaka UV Index.
UV Risk Categories
July in Osaka, Japan, enjoys an impressive 258 hours of sunshine, marking a peak in summer's warmth. This month is a vibrant continuation of the sunny trend that starts in early spring, where hours of sunshine steadily increase from 185 hours in January to a high of 291 hours in May. While July experiences a slight dip compared to the blazing days of August, which boasts an exceptional 305 hours, it still holds its place as a bastion of summer light. This fluctuation showcases a characteristic pattern, as sunshine hours ripple through the year, peaking in late summer and gently receding into the milder autumn months. Visitors are treated to a delightful blend of sunny days perfect for exploration, making July a wonderful time to bask in the vibrant atmosphere of Osaka.
In July, Osaka experiences a 32% chance of sunny weather, which marks a notable dip compared to earlier months. This trend of decreasing sunshine is especially pronounced when compared to the year’s start, where the likelihood hovers around 49% in January and peaks at 57% in December. The transition to the summer months sees a gradual decline, with June at 24% and reaching its lowest in July. This dip suggests that while the summer brings warmth, it also invites increased humidity and cloud cover. Nevertheless, as summer unfolds, there are still ample opportunities for bright and sunny days amidst the varied weather patterns.
In Osaka, Japan, July marks the peak of summer, with an inviting 14 hours of daylight that encourage outdoor adventures and vibrant city life. This month aligns with the gradual increase in daylight that begins in late winter; after 10 hours in January and February, daylight steadily climbs, reaching 11 hours in March and 13 hours by April and May. June continues this upward trend, maintaining 14 hours, just like July, before the daylight begins to taper off in August. As summer wanes, daylight gradually decreases to 12 hours in September and 11 hours in October. This natural rhythm of light and dark beautifully reflects the changing seasons, inviting residents and visitors alike to relish the long, sun-soaked days of summer in Osaka.
In Osaka during July, the average wind speed hovers around 2.0 m/s (4 mph), indicating a slight increase from the calm of June. This minimal uptick in breeze can provide a refreshing contrast to the rising summer heat, but overall, July remains one of the quieter months for wind. Notably, it marks the beginning of a gradual ascent in wind speed, with August typically bringing about a more noticeable freshening at 2.4 m/s (5 mph). As summer progresses, the gentle winds serve to moderate the humidity, making outdoor activities more enjoyable amidst the vibrant festivities that characterize this lively city.
Weather in Osaka varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Osaka, focusing on differences in temperature, rainfall, humidity, and UV levels.
July and January present striking contrasts in weather patterns. In July, temperatures soar with a minimum of 20°C (69°F) and an average high of 28°C (82°F), reaching up to a scorching 37°C (99°F). The month is also characterized by high humidity levels of 93% and significant rainfall, accumulating 282 mm (11.1 in) over 18 days. In contrast, January experiences much cooler conditions, with temperatures ranging from a chilly -3°C (26°F) to a mild 18°C (64°F) and an average of just 6°C (42°F). Precipitation is minimal, totaling 46 mm (1.8 in) over only 6 days, accompanied by lower humidity at 82%. For more detailed insights into January's climate, check out Osaka weather in January.
July and February present starkly contrasting weather conditions in Osaka. July boasts high temperatures, with a minimum of 20°C (69°F) and an average of 28°C (82°F), peaking at a sweltering 37°C (99°F). This month is also characterized by heavy precipitation, with an average of 282 mm (11.1 in) of rainfall spread over 18 days and high humidity at 93%. In contrast, February experiences much cooler temperatures, with a minimum of -3°C (26°F) and an average of 6°C (43°F), climbing to a maximum of 20°C (68°F). Precipitation is significantly lower in February, at 60 mm (2.3 in) over just 6 days, along with a slightly lower humidity level of 79%. For more detailed insights, you can visit Osaka weather in February.
In July, the weather is characterized by high temperatures, with minimums around 20°C (69°F) and maximums soaring to 37°C (99°F), resulting in an average temperature of 28°C (82°F). The month is also marked by substantial rainfall, totaling 282 mm (11.1 in) over 18 days, coupled with high humidity levels of 93%. In stark contrast, March experiences much cooler temperatures, ranging from a minimum of -1°C (31°F) to a maximum of 23°C (73°F), with an average temperature of 10°C (51°F). Precipitation is notably lower at 109 mm (4.3 in) over 11 days, and the humidity is slightly lesser at 74%. For a detailed insight into the weather specifics for March, you can visit Osaka weather in March.
In comparing the weather of July and April, notable differences arise in temperature, precipitation, and humidity. July experiences significantly warmer temperatures, with minimums around 20°C (69°F) and maximums soaring to 37°C (99°F), resulting in an average of 28°C (82°F). This contrasts sharply with April, which sees much cooler temperatures, ranging from a minimum of 3°C (37°F) to a maximum of 26°C (79°F) and an average of 15°C (59°F). Additionally, July is marked by heavy rainfall, accumulating 282 mm (11.1 in) over 18 days, while April has a much lighter precipitation total of 135 mm (5.3 in) over 10 days. The humidity also tends to be higher in July at 93%, compared to 76% in April. For more details on the climate during this month, visit Osaka weather in April.
July and May display a stark contrast in weather conditions. In July, temperatures soar, with averages reaching 28°C (82°F) and maximums peaking at 37°C (99°F), while May remains much cooler, with averages around 20°C (69°F) and a maximum of 31°C (88°F). Additionally, July experiences significantly more precipitation, totaling 282 mm (11.1 in) over 18 days, compared to May's 150 mm (5.9 in) over just 10 days. Humidity also increases in July, averaging at a sweltering 93%, compared to May's 83%. For a more detailed view of the conditions, you can check Osaka weather in May.
In comparing the weather between June and July, July is notably warmer, with average temperatures reaching 28°C (82°F) compared to June's 24°C (75°F). The maximum temperature in July can soar to 37°C (99°F), significantly higher than June's maximum of 32°C (89°F). Additionally, July experiences more precipitation, with 282 mm (11.1 in) falling over 18 days, while June sees 147 mm (5.8 in) across 12 days. Humidity levels are also higher in July, averaging 93% compared to June's 87%. For more detailed insights, you can check Osaka weather in June.
July and August both showcase warm weather, but there are some key differences. July features temperatures ranging from a minimum of 20°C (69°F) to a maximum of 37°C (99°F), with an average of 28°C (82°F). The month is also quite wet, receiving 282 mm (11.1 in) of precipitation over 18 days and high humidity at 93%. In contrast, August offers slightly warmer average temperatures with a minimum of 19°C (66°F), an average of 29°C (85°F), and a maximum of 38°C (101°F). However, it experiences less rainfall, totaling 183 mm (7.2 in) over just 12 days, and a slightly lower humidity at 91%. For more detailed information, check out Osaka weather in August.
July experiences hotter and more humid conditions compared to September, with average temperatures peaking at 28°C (82°F) and a high of 37°C (99°F). The month is also characterized by significant rainfall, totaling 282 mm (11.1 in) over 18 days, resulting in a humidity level of 93%. In contrast, September sees a slight decrease in temperature, with average highs around 25°C (78°F) and the same maximum temperature of 37°C, but less rainfall at 169 mm (6.7 in) across 15 days, leading to a lower humidity of 87%. For more detailed insights into September's weather patterns, you can refer to Osaka weather in September.
In July, the weather is characterized by high temperatures, with minimums around 20°C (69°F) and averages soaring to 28°C (82°F), reaching highs of 37°C (99°F). This month sees significant rainfall, totaling 282 mm (11.1 in) over 18 days, coupled with a high humidity level of 93%. In contrast, October presents a marked shift, with a cooler climate where temperatures drop significantly to a minimum of 8°C (46°F) and average around 20°C (67°F), peaking at 33°C (91°F). Although October still experiences precipitation, it is less intense at 230 mm (9.0 in) across 12 days, and humidity levels are slightly lower at 85%. For a deeper look into October's climate, visit Osaka weather in October.
July and November present contrasting weather patterns. In July, temperatures soar with a minimum of 20°C (69°F) and an average of 28°C (82°F), peaking at a sweltering 37°C (99°F). The month is also marked by high humidity at 93% and significant precipitation of 282 mm (11.1 in) over 18 days. In stark contrast, November features much cooler temperatures, with a minimum of 2°C (35°F) and an average of 13°C (56°F), reaching a maximum of 25°C (78°F). This month experiences significantly less rainfall, totaling only 44 mm (1.7 in) over 6 days, along with a humidity level of 83%. For a detailed look at November weather, check out Osaka weather in November.
In July, temperatures soar in Osaka, with minimums around 20°C (69°F) and averages peaking at 28°C (82°F), reaching highs of up to 37°C (99°F). This summer month is characterized by high humidity at 93% and significant rainfall, totaling 282 mm (11.1 in) over 18 days. In stark contrast, December brings a dramatic shift in the weather, as minimum temperatures drop to -1°C (30°F) and average around 8°C (47°F), with maximums reaching a milder 22°C (71°F). The winter month experiences much less precipitation, totaling only 57 mm (2.2 in) over just 6 days, alongside a slightly lower humidity of 83%. For more detailed insights, check out Osaka weather in December.
In July, Osaka transforms into a sweltering summer haven, marked by peak temperatures and high humidity that set it apart from other months. With the average temp hovering around 28°C, the city can experience scorching highs that occasionally reach a staggering 37°C. This month also brings considerable precipitation, often manifesting as intense rain showers on nearly half the days, contributing to a muggy atmosphere with humidity levels lingering at an impressive 93%. For those looking to explore the vibrant streets of Osaka, this climatic shift requires preparation, making it essential to stay hydrated and ready for sudden downpours. For more detailed information on what to expect throughout the year, check out Osaka Climate.