Last updated: August 21, 2025
In Nagoya, Japan, August brings a blend of heat and humidity, with temperatures soaring to a maximum of 39°C (103°F) and averaging around 29°C (85°F). The nighttime offers a brief respite, with lows dipping to 19°C (67°F). This month is characterized by significant rainfall, accumulating nearly 169 mm (6.7 in) over 14 days, contributing to a steamy ambiance with humidity levels reaching an impressive 91%. Whether navigating the vibrant city or exploring the lush greenery, visitors should come prepared for a tropical experience that combines both scorching days and refreshing showers.
In August, Nagoya experiences a significant rise in temperatures, highlighting the peak of summer in Japan. With minimums around 19°C (67°F) and average highs reaching a sizzling 39°C (103°F), the city is enveloped in warmth and humidity. This contrasts sharply with the cooler temperatures of previous months; for instance, July's highs barely touch 38°C (100°F). August's balmy climate encourages outdoor activities and festivals, allowing residents and visitors to soak in the vibrant atmosphere. The heat remains intense until the gradual transition into September, where temperatures start to dip, making August the climax of Nagoya's summer heatwave.
In August, Nagoya experiences a notable blend of warmth and moisture, with precipitation measuring an average of 169 mm (6.7 in) over 14 rainy days. This rainfall contributes to a humid atmosphere typical of summer in the region, following July's peak of 295 mm (11.6 in), which sets the tone for a lush landscape. Despite August's substantial precipitation, this amount marks a decrease from July, yet it remains significant in comparison to earlier months like June and May, highlighting the continued presence of monsoonal influences. As the summer progresses, the consistent rainfall in August acts as a vital resource for local flora and agriculture, ensuring that the city's vibrant greenery persists into the vibrant autumn season.
In August, humidity in Nagoya, Japan, reaches a high of 91%, marking a slight decline from the peak levels seen in July at 93%. This trend illustrates the summer months' tendency to be increasingly humid, creating a sticky atmosphere that residents have come to expect. Following a surge from June's 87%, August maintains relatively high humidity, contributing to the overall warmth of the season. As the year transitions into the fall months, humidity starts to decrease, providing a refreshing change after the heavy summer air. This pattern of elevated humidity highlights Nagoya's subtropical climate, where the summer months are characterized by significant moisture.
In August, Nagoya, Japan, experiences a peak UV Index of 11, placing it in the extreme exposure category with a rapid burn time of just 10 minutes. This trend of high ultraviolet radiation extends back to May, where the Index first hit 11, remaining consistent through the sweltering summer months of June and July. As the city basks in summer heat, residents and visitors alike should remain vigilant about sun protection, as the risk for skin damage escalates. Preparing for outdoor activities with proper sunscreen and protective clothing is essential during this time. For more detailed information on UV levels, check the Nagoya UV Index.
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In August, the sun generously bathes Nagoya, Japan, delivering an impressive 300 hours of sunshine, marking it as the sunniest month of the year. This peak not only reflects a trend of increasing daylight hours from January's modest 185 hours, but also showcases a consistent rise from the previous months, with sunshine hours steadily climbing from March's 265 to April's 276 and May's 290. The warm embrace of summer is palpable as the city transitions into the vibrant hues of late summer, before sunshine hours begin to gradually recede in the coming months. Following August, September's 244 hours serves as a gentle reminder that while the days are beginning to wane, the lingering warmth of summer continues to radiate through Nagoya's skies, making August a delightful high point in the city's annual sunshine narrative.
In August, the likelihood of sunny weather in Nagoya, Japan, stands at 29%, marking one of the lower probabilities for the year. This trend follows a pattern of decreasing sunshine from the spring months, where the chances hover around 49% in April, down to 25% in June. Interestingly, the summer months appear less favorable for sunny days, as July only offers a 31% chance. As Nagoya transitions into fall, the sunny outlook improves significantly, with October reaching 59% and November climbing even higher to 63%. Overall, if you're planning an August visit, it may be wise to prepare for a mix of weather, as sunny days can be a bit elusive this time of year.
In August, Nagoya, Japan enjoys approximately 13 hours of daylight, a highlight of the summer season that showcases the city's vibrant energy and outdoor allure. As the year progresses from the shorter days of January and February—each with only 10 hours—the length of daylight gradually increases, peaking in June and July at a generous 14 hours. Although there is a slight decline in daylight as summer transitions into fall, August still retains substantial sunlight, allowing residents and visitors alike to relish in evening escapades and outdoor activities. Following this summer peak, daylight duration begins to taper off in September, hinting at the approaching autumn, yet August remains a cherished month of warm, sunlit days.
In August, the winds in Nagoya, Japan, boast an average speed of 2.4 m/s (5 mph), slightly higher than the summer lull experienced in July with its gentle 1.7 m/s (4 mph). This subtle uptick hints at a shift as the city transitions towards autumn. Notably, wind speeds tend to fluctuate throughout the year, peaking modestly in the spring months of March and April at 3.0 m/s (7 mph), before gradually tapering off in the sultry summer. As the calendar moves toward fall, the winds often recede, creating a serene atmosphere that complements the warm August days. Overall, while August may not be the breeziest month, its winds serve as a gentle reminder of the changing seasons ahead.
Weather in Nagoya varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Nagoya, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present strikingly contrasting weather conditions. In August, temperatures soar with a minimum of 19°C (67°F) and an average of 29°C (85°F), peaking at a sweltering 39°C (103°F). This month also sees high humidity levels at 91% and frequent rainfall, totaling 169 mm (6.7 in) across 14 days. In stark contrast, January experiences much cooler temperatures, with a minimum of -5°C (23°F) and an average of 5°C (41°F), reaching a maximum of 17°C (64°F). The winter month is relatively dry, receiving only 43 mm (1.7 in) of precipitation over 5 days, and humidity levels are slightly lower at 82%. For more details, visit Nagoya weather in January.
August and February present stark contrasts in weather. August is characterized by warm temperatures, with a minimum of 19°C (67°F) and an average high of 29°C (85°F), often reaching as high as 39°C (103°F). This month also experiences significant rainfall, averaging 169 mm (6.7 in) over about 14 days, coupled with high humidity levels at 91%.
In contrast, February is much cooler, with temperatures ranging from a minimum of -4°C (24°F) to a maximum of 21°C (71°F), and an average of only 6°C (43°F). Precipitation in February is notably lower, at 52 mm (2.0 in) over just 5 days, and humidity is somewhat reduced at 79%. For more details on February's climate, check out Nagoya weather in February.
August and March exhibit stark contrasts in weather. August is characterized by warm temperatures, with averages around 29°C (85°F) and peaks reaching as high as 39°C (103°F). This month also experiences high humidity at 91% and significant rainfall, totaling 169 mm (6.7 in) over about 14 days. In contrast, March presents a much cooler climate, featuring average temperatures of 10°C (51°F) and maximums at 25°C (77°F). The precipitation is milder, with 126 mm (5.0 in) over 9 days, and a lower humidity level of 74%. For those interested in exploring more about the climate during this time, Nagoya weather in March provides additional insights.
When comparing the weather in August and April, a stark contrast emerges. August boasts significantly higher temperatures, ranging from a minimum of 19°C (67°F) to a scorching maximum of 39°C (103°F), alongside high humidity levels of 91%. In contrast, April experiences much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 28°C (83°F), and an average of 15°C (59°F). Despite being 9 days of rain in April accumulating 142 mm (5.6 in) of precipitation, August sees even more rainfall at 169 mm (6.7 in) over 14 days. For a more detailed look at April's weather, you can visit Nagoya weather in April.
August and May exhibit distinct weather patterns. In August, temperatures soar with a minimum of 19°C (67°F) and an average high of 29°C (85°F), peaking at a scorching 39°C (103°F). Additionally, the humidity is significantly high at 91%, creating a stifling atmosphere despite the 169 mm (6.7 in) of precipitation over 14 rainy days. In contrast, May experiences milder conditions, with a minimum temperature of 5°C (41°F), an average of 20°C (68°F), and a maximum of 32°C (90°F). Although May sees slightly more precipitation at 173 mm (6.8 in) over just 10 days, it enjoys lower humidity levels at 83%. For more insights into May's weather, check out Nagoya weather in May.
When comparing the weather in June and August, August tends to be significantly warmer and more humid. In August, temperatures range from a minimum of 19°C (67°F) to a scorching maximum of 39°C (103°F), with an average temperature of 29°C (85°F). This month also sees higher precipitation levels, with 169 mm (6.7 in) of rain over 14 days, and humidity levels reaching 91%. In contrast, June features milder temperatures, with a minimum of 12°C (53°F) and a maximum of 34°C (93°F), averaging 23°C (74°F). June's precipitation is slightly lower at 148 mm (5.8 in) over 13 days, accompanied by a humidity level of 87%. For more detailed insights on June weather, check out Nagoya weather in June.
In comparing the weather between July and August, July features slightly cooler average temperatures, ranging from a minimum of 20°C (67°F) to a maximum of 38°C (100°F), while August sees an increase in average temperature with a minimum of 19°C (67°F) and a maximum of 39°C (103°F). Precipitation levels also differ; July experiences significantly higher rainfall, totaling 295 mm (11.6 in) over 19 days, compared to August's 169 mm (6.7 in) across 14 days. Humidity remains relatively high in both months, with July at 93% and August slightly lower at 91%. For more detailed weather information, you can visit Nagoya weather in July.
August and September bring noticeable shifts in weather conditions. While August typically enjoys higher average temperatures around 29°C (85°F), with peaks reaching up to 39°C (103°F), September's temperatures drop slightly, averaging 25°C (77°F) and maxing out at 38°C (101°F). Precipitation remains high in both months, with August receiving 169 mm (6.7 in) over 14 days and September close behind at 165 mm (6.5 in) over 16 days. Humidity also sees a slight decrease from 91% in August to 87% in September. For more detailed information, you can check out the Nagoya weather in September.
August and October present a stark contrast in weather patterns. August boasts higher temperatures, with an average of 29°C (85°F) and maximums reaching up to 39°C (103°F), indicating a hot and humid month, characterized by a significant 169 mm (6.7 in) of rainfall over 14 days and a high humidity level of 91%. In comparison, October experiences milder conditions, featuring an average temperature of 19°C (66°F) and maximums of 32°C (90°F). This month also witnesses increased rainfall at 210 mm (8.2 in) across 12 days, although humidity levels slightly decrease to 85%. For a detailed look at what to expect this October, check out Nagoya weather in October.
August and November present stark contrasts in weather conditions. In August, temperatures soar, with averages around 29°C (85°F) and maximums peaking at 39°C (103°F), while humidity remains high at 91%. This month also sees considerable rainfall, accumulating 169 mm (6.7 in) over 14 days. In contrast, November experiences a significant drop in temperatures, with averages around 13°C (55°F) and maximums reaching 25°C (76°F). Precipitation is much lighter, totaling 54 mm (2.1 in) across just 6 days, and humidity levels decrease slightly to 83%. For more details on November's climate, you can check Nagoya weather in November.
August and December present a striking contrast in weather patterns. In August, temperatures soar with a minimum of 19°C (67°F) and an average of 29°C (85°F), reaching a sweltering maximum of 39°C (103°F). The month is characterized by high humidity at 91% and considerable precipitation, averaging 169 mm (6.7 in) over 14 days. In stark contrast, December brings a chill, with temperatures ranging from a minimum of -3°C (28°F) to a comfortable maximum of 21°C (70°F), averaging just 7°C (45°F). This winter month sees significantly lower precipitation, totaling 51 mm (2.0 in) over only 5 days, and a slightly reduced humidity level at 83%. For more insights into what to expect, you can check Nagoya weather in December.
In August, Nagoya experiences a distinctly hot and humid climate that sets it apart from other months. With temperatures often soaring to a maximum of 39°C and an average of 29°C, the heat is palpable, making the city feel vibrant yet sweltering. Alongside the high humidity levels of 91%, the likelihood of rain also increases, with 14 days of precipitation adding to the summer's stickiness, culminating in a total of 169 mm of rainfall. This combination of intense heat and frequent showers creates a unique challenge for visitors and residents alike, encouraging a variety of indoor activities and cultural festivities during this lively month. For more insight into Nagoya's weather patterns, check out the detailed information at Nagoya Climate.