Last updated: August 21, 2025
Experience the vibrant August weather in Tokyo, Japan, where the city basks in warm temperatures peaking at a sizzling 36°C (98°F). With an average temperature of 28°C (83°F), the conditions are ripe for summer festivities, although the minimum temperature dips to a refreshing 18°C (65°F) during the cooler nights. Embrace the high humidity at 90%, which adds a tropical touch to the atmosphere. However, prepare for the occasional rain, as 103 mm (4.1 in) of precipitation falls over 12 days, making it wise to carry an umbrella while enjoying the bustling streets of this iconic metropolis.
In August, Tokyo experiences its peak summer temperatures, with a minimum of 18°C (65°F) and an average that climbs to a sizzling 28°C (83°F). The city's vibrant energy is palpable as the maximum temperatures can soar up to 36°C (98°F), making this month one of the hottest of the year. This trend of escalating warmth can be traced back through the summer months, as July already sets the stage with temperatures reaching impressive highs. As late summer unfolds, the combination of heat and humidity creates a unique atmosphere, inviting both locals and tourists to enjoy the bustling outdoor festivals and evening strolls along the illuminated streets.
In August, Tokyo experiences a moderate precipitation amount of 103 mm (4.1 in), which falls below the peak rainfall of July at 221 mm (8.7 in), but still contributes significantly to the city’s humid summer climate. The month sees about 12 rainy days, offering a refreshing respite from the intense heat, though not as frequent as the heavy downpours typical in July. This trend of fluctuating rain, with a notable spike in June and July, indicates a pattern in Tokyo’s weather, transitioning into the fall months where precipitation increases again in September. Despite the drop-off in rainfall from July, the consistent moisture in August helps maintain the city’s lush greenery and vibrant landscapes, creating a picturesque summer scene.
In August, Tokyo experiences a humid embrace, with humidity levels around 90%. This peak is part of a noticeable trend, as the city's humidity steadily increases from the cooler months of January through March, where it hovers around 70%. As spring gives way to summer, humidity levels begin to swell—rising significantly to 93% in July. After August, a gradual decline begins, with September's humidity still high at 86%, before tapering off into autumn. This pattern reflects Tokyo's seasonal shift, where the oppressive summer heat often coincides with elevated moisture levels, creating a uniquely steamy atmosphere that defines the city's summer experience.
In August, Tokyo experiences a UV Index of 11, categorized as extreme, with a quick burn time of just 10 minutes. This month continues the trend established in May, June, and July, where the UV index reached its highest levels, demanding cautious sun exposure. As summer peaks, residents and visitors alike should remain vigilant, employing sunscreen and protective clothing to safeguard against potential skin damage. Following August, the UV Index gradually declines in September to 10, signaling a slight easing, but still remains high. With this dramatic shift in sun intensity, being informed is essential for enjoying outdoor activities safely. For more detailed insights, explore the full information at Tokyo UV Index.
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August in Tokyo bathes the city in radiant sunshine, boasting an impressive 288 hours of sunlight—the highest of the year. This month stands out as the peak of summer, following a steady increase from 191 hours in January to a delightful 285 hours in May. As the warm rays of the sun embrace the city, August offers an escape from the mid-year dip in June and July, where sunshine levels drop to 262 and 234 hours respectively. The days slowly begin to shorten as September approaches, with 235 hours of sunlight, but the vibrant energy of Tokyo in August remains unmatched, inviting both residents and visitors to savor the long, sun-drenched days.
In Tokyo, the likelihood of sunny weather experiences notable fluctuations throughout the year. August, with a 35% chance of sun, stands out as a transitional period where summer heat lingers but begins its slow departure. This figure, while higher than the rainy months of June (22%) and July (30%), still reflects the variability common in Tokyo's late summer. As the city approaches autumn, the sun's presence starts to pick up again, particularly in the following months, like October (49%) and November (59%). While August may not boast the sunniest days, it still offers glimpses of warmth, continuing the vibrant atmosphere that characterizes the Japanese summer.
In August, Tokyo enjoys an abundance of daylight, with approximately 13 hours illuminating the city. This month marks a slight decline from the peak of 14 hours seen in July, but it still offers plenty of time for outdoor adventures and vibrant summer festivals. As the year progresses, daylight gradually wanes, dipping to 12 hours in September and continuing its descent toward the 10 hours of light characteristic of the winter months. The increasing daylight hours from January through July create a warm and welcoming atmosphere, but as summer fades, the transition into autumn serves as a gentle reminder of the changing seasons in this dynamic metropolis.
In August, Tokyo experiences a mild breeze with an average wind speed of 3.8 m/s (8 mph), a refreshing change from the stillness of July. The summer's sweltering heat coincides with gentle winds, providing a pleasant backdrop for the city's vibrant festivals and outdoor activities. Following the steady increase observed in spring, where wind speeds reached 4.2 m/s (9 mph) in May, August's winds reflect a slight dip but maintain a consistent character that echoes the earlier months. Overall, as Tokyo transitions from the heat of summer toward the cooler autumn months, the breeze remains a comforting companion, reminding residents of the city's dynamic seasonal rhythm.
Weather in Tokyo varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Tokyo, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present stark contrasts in weather. August boasts warm temperatures, ranging from a minimum of 18°C (65°F) to a maximum of 36°C (98°F), with an average of 28°C (83°F). The month's high humidity at 90% and significant rainfall (103 mm) over 12 days create a tropical atmosphere. In contrast, January experiences much colder conditions, with temperatures dipping as low as -8°C (18°F) and averaging around 5°C (41°F), peaking at a milder 18°C (65°F). Precipitation is lighter in January, totaling 46 mm over just 5 days, and humidity sits at a lower 76%. For more specific details on January weather, visit Tokyo weather in January.
August and February present strikingly contrasting weather patterns. In August, temperatures range from a minimum of 18°C (65°F) to a scorching maximum of 36°C (98°F), with an average of 28°C (83°F). The month sees considerable humidity at 90% and experiences 103 mm (4.1 in) of precipitation over 12 days. In stark contrast, February's temperatures are much cooler, dipping as low as -3°C (26°F) and reaching a maximum of 20°C (69°F), with an average of only 6°C (43°F). This month receives significantly less precipitation at 41 mm (1.6 in) across 7 days and has a lower humidity level of 74%. For more detailed information, you can visit Tokyo weather in February.
When comparing the weather in August and March, a stark contrast emerges. August boasts much warmer temperatures, with a minimum of 18°C (65°F) and an average of 28°C (83°F), peaking at 36°C (98°F). In contrast, March experiences cooler conditions, starting from a minimum of -2°C (28°F) and averaging around 10°C (51°F), reaching a maximum of 23°C (73°F). Additionally, August is characterized by high humidity at 90% and 103 mm (4.1 in) of precipitation over 12 days. Meanwhile, March sees less humidity at 70% and a slightly higher total precipitation of 132 mm (5.2 in) over the same number of days. For more detailed insights about the weather during this month, you can visit Tokyo weather in March.
August and April present contrasting weather patterns, showcasing the transition from spring to summer. In August, temperatures soar with a minimum of 18°C (65°F) and reaching highs of 36°C (98°F), accompanied by high humidity levels at 90%. In contrast, April offers a cooler climate with a minimum temperature of 3°C (37°F) and an average of 14°C (58°F), peaking at 27°C (80°F). Although April receives slightly more precipitation at 116 mm (4.6 in) over 10 days, August is also quite wet with 103 mm (4.1 in) spread across 12 days. For a closer look at what to expect in April, you can check out Tokyo weather in April.
In comparing the weather between August and May, August is significantly warmer, featuring a minimum temperature of 18°C (65°F) and an average of 28°C (83°F), with maximum temperatures reaching as high as 36°C (98°F). In contrast, May exhibits a cooler climate, with temperatures ranging from a minimum of 8°C (46°F) to an average of 20°C (68°F) and a maximum of 31°C (88°F). Both months experience considerable rainfall, but August sees slightly less precipitation at 103 mm (4.1 in) over 12 days compared to May’s 111 mm (4.4 in) over 11 days. The humidity levels also differ, with August reaching 90%, while May maintains a lower humidity of 81%. For more detailed insights into May's weather, check out Tokyo weather in May.
In comparing the weather of August and June, we notice that August tends to be warmer, with temperatures ranging from a minimum of 18°C to a maximum of 36°C, while June has cooler temperatures, with a minimum of 15°C and a maximum of 33°C. The average temperature in August is 28°C, significantly higher than the 23°C average in June. Interestingly, while August has slightly less precipitation at 103 mm over 12 days, June experiences more rain, totaling 152 mm over 13 days. Humidity remains high in both months, with August at 90% and June at 88%. For more detailed insights, you can refer to Tokyo weather in June.
In comparing the weather of August and July, it is evident that August experiences slightly milder temperatures, with an average of 28°C (83°F) compared to July's average of 26°C (79°F). However, July boasts higher maximum temperatures, reaching up to 39°C (103°F), while August peaks at a lower maximum of 36°C (98°F). Precipitation is significantly greater in July, totaling 221 mm (8.7 in) over 17 days, compared to August's 103 mm (4.1 in) spread across 12 days, leading to a generally drier month. Humidity remains fairly high in both months, with August at 90% and July at 93%. For a deeper look into the details of July's weather, you can visit Tokyo weather in July.
August and September exhibit notable differences in weather patterns. In August, temperatures range from a minimum of 18°C (65°F) to a maximum of 36°C (98°F), with an average temperature of 28°C (83°F). The month experiences significant humidity at 90% and sees 103 mm (4.1 in) of precipitation over 12 days. Conversely, September sees a drop in temperatures, with a minimum of 13°C (56°F), an average of 24°C (75°F), and a maximum of 35°C (96°F). However, it is wetter than August, with 186 mm (7.3 in) of rainfall over 16 days, and humidity remains relatively high at 86%. For more insights, you can check Tokyo weather in September.
August is characterized by warm temperatures, with averages around 28°C (83°F) and peaks reaching up to 36°C (98°F), accompanied by high humidity levels of 90%. In contrast, October sees a significant drop in temperatures, with averages falling to 19°C (66°F) and minimums dipping to 8°C (47°F). Additionally, October experiences increased rainfall, totaling 273 mm (10.7 in) over approximately 15 days, compared to the 103 mm (4.1 in) over 12 days in August. Despite the cooler weather, October's lower humidity at 83% offers a different, albeit wetter, experience. For more detailed insights, check out Tokyo weather in October.
In August, the weather is typically hot and humid, with temperatures ranging from a minimum of 18°C (65°F) at night to a scorching maximum of 36°C (98°F) during the day, accompanied by an average temperature of 28°C (83°F). The month experiences considerable rainfall, with about 103 mm (4.1 in) falling over approximately 12 days, contributing to a high humidity level of 90%.
In contrast, November brings a significant drop in temperatures, with a minimum of 1°C (34°F) and a maximum of 24°C (75°F), averaging 13°C (56°F). The rainfall decreases to 77 mm (3.0 in) over just 9 days, and humidity levels also decline to around 80%. The transition from the sweltering summer heat of August to the cooler, drier climate of November highlights the changing seasons in Tokyo. For more details, you can check Tokyo weather in November.
August and December present a stark contrast in weather. In August, temperatures are warm, with a minimum of 18°C (65°F) and an average of 28°C (83°F), peaking at a scorching 36°C (98°F). The month is also characterized by high humidity at 90% and considerable rainfall, receiving 103 mm (4.1 in) over about 12 days. In contrast, December experiences much cooler temperatures, ranging from a minimum of -2°C (28°F) to a maximum of 21°C (70°F), averaging around 8°C (46°F). Precipitation is less frequent during this month, totaling 56 mm (2.2 in) across just 7 days and accompanied by lower humidity at 78%. For more detailed information, you can check Tokyo weather in December.
August in Tokyo is characterized by its sweltering heat and high humidity, setting it apart from other months of the year. With temperatures frequently reaching their peak, residents and visitors alike must navigate the intense tropical climate that can feel quite stifling. The substantial precipitation, coupled with frequent rain showers, adds to the unique weather experience of this month. While the vibrant energy of the city remains, the muggy days and occasional downpours remind everyone that summer is in full swing. For more insights into how Tokyo’s weather patterns evolve throughout the year, visit Tokyo Climate.