Last updated: August 21, 2025
Experience the summer climate of Nagasaki, Japan, in August, where temperatures peak at a maximum of 33°C (93°F) and average around 28°C (82°F), offering a warm and humid atmosphere. With a minimum temperature of 21°C (69°F), the weather is quite comfortable during the evenings. However, be prepared for heavy rainfall as August sees a precipitation total of 326 mm (12.8 in) across approximately 14 days. The humidity levels soar to around 94%, adding to the tropical feel. Embrace the vibrant summer days, but remember to carry an umbrella for the occasional downpour!
In August, Nagasaki experiences a warm embrace as summer reaches its peak, with temperatures reflecting a vibrant climate. The minimum temperature hovers around a comfortable 21°C (69°F), while the average climbs to a balmy 28°C (82°F), peaking at an impressive 33°C (93°F). This month marks a continuation of the rising trend seen since June, showcasing a significant increase in warmth and humidity. The sultry atmosphere invites both locals and tourists to revel in outdoor activities, making it a perfect time to explore the city's rich history and picturesque landscapes. As summer slowly transitions to autumn, August stands out as a quintessential month in Nagasaki, characterized by its lively warmth and vibrant life.
In August, Nagasaki experiences notable precipitation with 326 mm (12.8 in) of rainfall over approximately 14 days, making it one of the wetter months of the year. This month typically follows the record-breaking rains of July, which see an impressive 442 mm (17.4 in), and marks a slight decrease while still maintaining a substantial amount of rainfall. The trend observed shows that as summer transitions towards autumn, rainy days decrease from the peak in July, yet August still provides a significant volume of rain. This continuation of wet weather plays a vital role in supporting the region's lush landscapes, making it an integral part of Nagasaki's climate narrative.
In August, Nagasaki experiences a high humidity level of 94%, a slight dip from the peak of 97% in July but still indicative of the sweltering summer conditions that characterize the region. This month is part of a general trend of increasing humidity from the more temperate winter months, where levels hover around 73% to 69% from January to February, gradually rising to the oppressive 91% in June. The summer months reflect a clear escalation in humidity, with May to July showing a particularly sharp increase, culminating in the peak that precedes August's slight reduction. As the year progresses towards autumn, humidity will decline, dropping to 84% in September. Overall, the data highlights Nagasaki's distinct seasonal shifts, where the summer months bring a heavy, tropical feel, making August a quintessential part of its humid climate narrative.
In August, Nagasaki experiences one of its highest UV Index readings at 12, categorizing it as extreme with a burn time of just 10 minutes. This peak is consistent with the intensifying UV levels observed through the summer months, as both June and July also recorded a UV Index of 11-12, emphasizing the strong sun exposure typical for this season. As the summer draws to an end, September sees a slight decrease to an index of 11, but it's still classified as extreme. Those enjoying the outdoors in Nagasaki during this period should be especially cautious and take necessary sun protection measures. For more detailed insights on UV levels throughout the year, visit Nagasaki UV Index.
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In Nagasaki, Japan, August shines brightly with a remarkable 302 hours of sunshine, marking it as the sunniest month of the year. This surge in sunlight follows a steady ascent from January's modest 167 hours, illustrating a delightful progression through spring and summer. As the seasons transition, the sunshine hours consistently rise, peaking in August after a strong July with 271 hours. The city then experiences a slight decline as autumn approaches, with September returning to 261 hours. This trend of increasing sunshine culminates in a vibrant month that invites residents and visitors alike to bask in the warmth and beauty of Nagasaki's summer days.
In Nagasaki, Japan, the likelihood of sunny weather experiences notable shifts throughout the year. In August, residents can expect about a 30% chance of sunshine, which aligns with the typically warmer summer months, yet remains below the yearly averages. This pattern reflects a decrease in sunny days as the peak summer heat advances, contrasting sharply with the glorious 65% chance of sun observed in October, marking a transition to fall. The trend emphasizes that while August might not offer the sunniest days, the vibrant energy of summer still lingers, complemented by the promise of clearer skies just around the corner.
In Nagasaki, Japan, the daylight duration in August reflects the peak of summer with approximately 13 hours of sunlight, a slight decrease from the maximum of 14 hours seen in June and July. This trend illustrates a gradual tapering of daylight as the region transitions from the vibrant summer months into early autumn. Following August, daylight hours continue to decline through September and into the fall, emphasizing how Nagasaki experiences a smooth shift from long, sunlit days to the shorter daylight periods of winter. The rhythm of daylight in this coastal city beautifully mirrors the changing seasons, inviting a harmonious blend of nature and time.
In Nagasaki, Japan, the wind takes on a playful rhythm throughout the year, with August witnessing a gentle breeze averaging 4.2 m/s (9 mph). This month’s wind speed is slightly higher than the breezy summer lows of June (2.7 m/s) and July (3.5 m/s), showcasing a subtle uptick as the summer wanes. Interestingly, August’s winds align closely with the spring and early autumn averages, hinting at a seasonal transition. Overall, the year presents a fascinating wind profile, with January starting strong at 5.2 m/s and dipping to its lowest in June, before gradually rising again towards the end of the year—indicating that Nagasaki's breezy charm remains a constant presence, softly whispering through its historic streets.
Weather in Nagasaki varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Nagasaki, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present a stark contrast in weather conditions. In August, temperatures range from a minimum of 21°C (69°F) to a blistering maximum of 33°C (93°F), with an average of 28°C (82°F). The month is characterized by heavy rainfall, with 326 mm (12.8 in) of precipitation over 14 days and a high humidity level of 94%. In contrast, January sees much cooler temperatures, with a minimum of 0°C (32°F), an average of 8°C (47°F), and a maximum of 18°C (65°F). Precipitation is significantly lower in January at 61 mm (2.4 in) across 8 days, with a humidity level of 73%. For more details, you can check Nagasaki weather in January.
August and February present starkly different weather conditions. In August, temperatures soar with a minimum of 21°C (69°F) and an average of 28°C (82°F), reaching highs of 33°C (93°F). This month is characterized by high humidity at 94% and substantial rainfall, receiving 326 mm (12.8 in) over approximately 14 days. In contrast, February showcases a much cooler environment, where temperatures drop to a minimum of 0°C (33°F) and an average of 9°C (48°F), peaking at 17°C (63°F). This winter month experiences significantly less precipitation at 106 mm (4.2 in) over about 10 days and lower humidity at 69%. For more details on February’s weather, you can visit Nagasaki weather in February.
August and March present contrasting weather experiences. In August, temperatures soar with an average of 28°C (82°F), peaking at a sweltering 33°C (93°F), accompanied by high humidity at 94% which can make the heat feel even more intense. The month is also characterized by significant rainfall, with 326 mm (12.8 in) spread over 14 days. In stark contrast, March boasts much cooler temperatures, averaging 12°C (54°F) with a maximum of 20°C (68°F). It experiences less precipitation, totaling 157 mm (6.2 in) across 12 days, and lower humidity at 71%, resulting in a more comfortable climate. For a more detailed look at March weather, you can refer to Nagasaki weather in March.
In comparing the weather patterns of April and August, August can be characterized by significantly warmer temperatures, with average highs of 33°C (93°F) and a high humidity level of 94%. This month also experiences substantial rainfall, totaling 326 mm (12.8 in) over approximately 14 days. In contrast, April presents a much cooler climate, with average temperatures peaking at 23°C (73°F) and lower humidity rates of 79%. Rainfall during April is also less intense, measuring 143 mm (5.6 in) over about 9 days. For further details, you can visit Nagasaki weather in April.
The weather in August is noticeably warmer and more humid compared to May. While August sees average temperatures around 28°C (82°F) with maximums reaching up to 33°C (93°F) and high humidity levels at 94%, May offers a cooler climate with averages around 19°C (67°F) and maximums of 25°C (77°F). Additionally, August experiences significantly more rainfall, with 326 mm (12.8 in) spread over 14 days, compared to May's 229 mm (9.0 in) over 11 days. For a detailed look at May weather, you can visit Nagasaki weather in May.
When comparing the weather in August to that in June, we see a noticeable shift in temperatures and precipitation levels. August experiences higher temperatures, with daily averages around 28°C (82°F) and maximums reaching 33°C (93°F), compared to June's milder averages of 22°C (73°F) and highs of 27°C (81°F). Additionally, August tends to be wetter, with 326 mm (12.8 in) of rainfall over 14 days, compared to June's 272 mm (10.7 in) over the same number of days. Humidity levels are slightly higher in August at 94% versus June's 91%. For a detailed look at June weather, you can visit Nagasaki weather in June.
In comparing the weather between July and August, both months experience warm temperatures, with August featuring slightly higher averages, ranging from a minimum of 21°C (69°F) to a maximum of 33°C (93°F), compared to July's range of 21°C (70°F) to 32°C (89°F). July, however, is characterized by a higher level of precipitation, totaling 442 mm (17.4 in) over 18 days, in contrast to August's 326 mm (12.8 in) over 14 days. Humidity levels are also notably high in both months, peaking at 97% in July and just slightly lower at 94% in August. For more detailed insights, you can check Nagasaki weather in July.
August generally brings hotter and more humid conditions compared to September. With average temperatures peaking at 28°C (82°F) and maximum highs reaching 33°C (93°F), August experiences a remarkable 326 mm (12.8 in) of precipitation over 14 days, making it one of the wettest months of the year. In contrast, September's weather is milder, with average temperatures around 25°C (77°F) and a maximum of 32°C (90°F). The rainfall decreases to 225 mm (8.9 in), while humidity levels also drop to 84%, providing a more comfortable atmosphere for residents and visitors alike. For a more detailed look at September's weather patterns, you can check Nagasaki weather in September.
August weather is characterized by significantly warmer temperatures, with minimums around 21°C (69°F) and maximums rising to 33°C (93°F). This month also experiences high humidity levels at 94% and substantial rainfall, averaging 326 mm (12.8 in) over 14 days. In contrast, October brings a noticeable drop in temperature, with averages around 20°C (69°F) and maximums reaching 28°C (83°F). The autumn month sees much less precipitation, averaging 117 mm (4.6 in) over only 8 days, and a decrease in humidity to 79%. For a detailed overview, you can check out Nagasaki weather in October.
August and November present a stark contrast in weather. August boasts much warmer temperatures, with daily averages around 28°C (82°F) and highs reaching up to 33°C (93°F). This warmth is accompanied by high humidity at 94% and significant rainfall, with about 326 mm (12.8 inches) of precipitation spread over 14 days. In contrast, November experiences much cooler conditions, with average temperatures dropping to 15°C (60°F) and a maximum of 23°C (74°F). Rainfall also decreases significantly, totaling 81 mm (3.2 inches) over 9 days, and humidity drops to 75%. For more specific details about November weather, you can visit Nagasaki weather in November.
August and December present distinctly contrasting weather conditions. In August, temperatures soar, with a minimum of 21°C (69°F) and a maximum of 33°C (93°F), coupled with high humidity levels of 94%. The month is characterized by significant rainfall, accumulating 326 mm (12.8 in) over approximately 14 days. In stark contrast, December experiences much cooler temperatures, with an average of 10°C (51°F), ranging from a minimum of 2°C (36°F) to a maximum of 22°C (71°F). Precipitation drops significantly to 92 mm (3.6 in) over just 8 days, and humidity decreases to a comfortable 72%. For a more detailed look at December weather, please visit Nagasaki weather in December.
In August, Nagasaki experiences its warmest temperatures, with averages soaring to a balmy 28°C (82°F) and peaks reaching 33°C (93°F). This month is characterized by high humidity levels, often around 94%, making the heat feel even more intense. Alongside the warmth, August sees considerable rainfall, with about half the month experiencing precipitation across 14 days. This combination of heat and humidity sets August apart from the cooler, drier months of the year. For more insights into what to expect throughout the year, check out Nagasaki Climate.