Last updated: August 21, 2025
In August, Yamagata, Japan, experiences a vibrant blend of summer's warmth and humidity. With maximum temperatures soaring to 38°C (100°F) and an average of 27°C (82°F), the month is characterized by heat that invites both outdoor adventures and a need for relief. However, the region also faces considerable precipitation, accumulating 322 mm (12.7 in) over 18 days, contributing to the lush landscapes typical of this time of year. The high humidity level of 91% often intensifies the summer sensation, creating a unique atmosphere that beautifully reflects the contrasts of Yamagata's August weather.
August in Yamagata, Japan brings a peak in summer heat, with temperatures reaching an impressive maximum of 38°C (100°F). The month features consistent warmth, with an average temperature of 27°C (82°F) and a minimum that holds steady at 18°C (64°F). This trend of rising temperatures culminates from a gradual warming that begins in late spring, showcasing a remarkable transition from the chill of winter. As the hottest month, August is not only a time for heatwaves but also invites vibrant summer festivities, drawing locals and tourists alike to enjoy the long, sun-soaked days that characterize this lively season.
August in Yamagata, Japan, experiences a notable shift in precipitation patterns, with 322 mm (12.7 in) of rain falling over 18 days. This month, while still significantly wet, shows a decline from the torrential downpours of July, which boasts an impressive 493 mm (19.4 in) spread across 22 days. Despite the decrease, August remains a crucial month for moisture, sustaining the region's lush landscapes. As summer gives way to autumn, the rains taper off, setting the stage for the drier months ahead. This transition highlights Yamagata's unique climate rhythm, where high summer rainfall gradually gives way to milder conditions, creating a dynamic interplay between warmth and water.
In Yamagata, Japan, August brings a notable shift in humidity levels, with the average reaching 91%. This month, characterized by the warmth of summer, reflects a slight decrease from July’s peak of 93%. The trend throughout the summer months shows a gradual increase in humidity, starting from 83% in May, peaking in July, and slightly tapering off in August. As the end of summer approaches, humidity remains high, contributing to the region's lush landscapes, yet it gradually transitions to a less oppressive level in September at 87%. Despite the seasonal variations, the consistent humidity underscores Yamagata's temperate climate, creating a unique blend of seasonal charm.
In August, Yamagata, Japan, experiences a notably high UV Index of 11, categorizing the sun's intensity as extreme and reducing the safe exposure time to just 10 minutes. This trend of increasing UV levels begins in February with a moderate index and progresses sharply through the spring into the summer months, peaking in August alongside July's equally harsh conditions. Such sustained extreme levels indicate that outdoor enthusiasts should take extra precautions to protect their skin, as the risk of sunburn is significantly elevated. The UV Index remains high even as summer transitions to fall, which emphasizes the importance of being sun-safe year-round in this region. To learn more about these trends in Yamagata, visit the detailed Yamagata UV Index.
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In August, Yamagata, Japan, basks in a radiant glow, boasting an impressive 300 hours of sunshine—the highest of the year. This vibrant peak follows a steady ascent from January's 181 hours, showcasing the gradual transition from winter's chill to summer's embrace. Light hours continue to climb during the spring, peaking in May at 295 hours, before hitting their zenith in late summer. Interestingly, as August fades into September, sunshine hours dip to 247, signaling the onset of autumn, yet still stay well above the winter months. Overall, the data illustrates a clear seasonal rhythm in Yamagata’s climate, inviting residents and visitors alike to revel in the sun’s warming presence throughout the summer.
In Yamagata, Japan, the likelihood of sunny weather in August dips to a modest 26%, marking one of the lower probabilities of sunshine throughout the year. As summer progresses from July's 32% chance of sun, August feels the effects of the humid season, leading to more overcast days. Interestingly, sunshine chances begin to rebound in the fall, with October hitting a promising 58%. This trend showcases a notable shift in Yamagata’s weather patterns, as residents and visitors can look forward to brighter days after the summer haze.
In Yamagata, Japan, the rhythm of daylight shifts gracefully throughout the year. As summer unfolds, August enjoys about 13 hours of sunlight, echoing the peak brightness of June and July. This slight decline signals the transition towards autumn, as daylight gradually shrinks from the summer heights. Until then, the city basks in longer days, where vibrant outdoor activities flourish under the abundant sunshine. Following August, daylight dips to 12 hours in September, setting the stage for the cozy embrace of fall as the sun begins its retreat once more, highlighting the cyclical nature of light in this picturesque region.
In August, Yamagata experiences a gentle breeze with an average wind speed of 2.3 m/s (5 mph), demonstrating a slight increase from the calmer months of July and June, where speeds dipped to 1.5 m/s (3 mph) and 1.9 m/s (4 mph), respectively. This month serves as a transitional period, signaling the end of summer, as the winds start to pick up again, reminiscent of the spring months. Notably, after this mild August, the winds typically begin to stabilize, reflecting the consistent patterns of 2.2 m/s (5 mph) in October and 2.3 m/s (5 mph) in November. Overall, while August finds itself at a moderate pace, it heralds a shift towards more dynamic weather as autumn approaches.
Weather in Yamagata varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Yamagata, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January showcase stark contrasts in weather patterns. August features warm temperatures, with minimums around 18°C (64°F) and average highs soaring to 38°C (100°F), alongside high humidity levels of 91% and significant rainfall of 322 mm over 18 days. In contrast, January presents a much colder climate, with temperatures ranging from a low of -8°C (18°F) to a maximum of 16°C (60°F). This month experiences considerably less precipitation at 71 mm over 11 days and a lower humidity of 82%. For more detailed information about the weather in January, you can refer to Yamagata weather in January.
August and February present a stark contrast in weather conditions. August boasts high temperatures with a minimum of 18°C (64°F) and an average of 27°C (82°F), peaking at a scorching 38°C (100°F). The month is characterized by significant humidity at 91% and substantial rainfall, with 322 mm (12.7 in) of precipitation over 18 days. In contrast, February features a much cooler climate, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 20°C (68°F), averaging around 4°C (40°F). Though it experiences less rain, with 79 mm (3.1 in) falling across 9 days, February's humidity remains relatively high at 79%. For more detailed insights on February weather, check out Yamagata weather in February.
August and March present strikingly different weather conditions. In August, temperatures soar with a minimum of 18°C (64°F) and an average of 27°C (82°F), peaking at a sweltering 38°C (100°F). This month also sees extensive rainfall, with 322 mm (12.7 in) over 18 days, and high humidity levels at 91%. In contrast, March features much cooler temperatures, ranging from a minimum of -1°C (31°F) to an average of 9°C (48°F), and a maximum of 23°C (74°F). The precipitation in March is less intense at 179 mm (7.1 in) over 13 days, accompanied by lower humidity levels of 74%. For more details on March weather specifics, you can refer to Yamagata weather in March.
August and April present contrasting weather patterns that significantly influence daily life. In August, temperatures are notably higher, with a minimum of 18°C (64°F) and an average of 27°C (82°F), peaking at a scorching 38°C (100°F). This month also experiences high humidity levels at 91% and considerable rainfall, totaling 322 mm (12.7 in) over 18 days. In contrast, April offers a cooler climate, with minimum temperatures dropping to 0°C (32°F) and an average of 13°C (56°F), reaching a maximum of 27°C (82°F). Precipitation in April is lighter, at 223 mm (8.8 in) over 12 days, and the humidity is more moderate at 76%. For those interested in the specifics of April weather, more details can be found at Yamagata weather in April.
August weather is characterized by significantly warmer temperatures, with a minimum of 18°C (64°F) and an average of 27°C (82°F), reaching highs of up to 38°C (100°F). In contrast, May experiences much cooler conditions, with temperatures ranging from a minimum of 5°C (42°F) to an average of 18°C (65°F) and a maximum of 30°C (87°F). Additionally, August has higher precipitation levels, receiving 322 mm (12.7 in) across 18 rainy days, while May sees 229 mm (9.0 in) over just 12 days. Furthermore, August's humidity is notably higher at 91% compared to May's 83%. For a more detailed look at May weather, check out Yamagata weather in May.
In comparing the weather between August and June, August tends to be significantly warmer, with average temperatures reaching 27°C (82°F) compared to June's more moderate 22°C (71°F). August also features higher extremes, with maximum temperatures soaring to 38°C (100°F), while June peaks at 31°C (89°F). Precipitation is more abundant in August, accumulating to 322 mm (12.7 in) over 18 days, whereas June sees lower rainfall levels of 245 mm (9.7 in) spread across 13 days. Humidity levels are slightly higher in August at 91%, compared to June's 87%, contributing to a muggy atmosphere. For a detailed look at June weather specifically, you can check Yamagata weather in June.
In comparing the weather of August and July, we observe some notable differences. Both months have similar minimum temperatures, with August at 18°C (64°F) and July at 18°C (65°F). However, August features a slightly higher average temperature of 27°C (82°F), compared to July's 26°C (78°F), and reaches a peak of 38°C (100°F) in both months. Precipitation levels also vary significantly; August receives 322 mm (12.7 in) over 18 days, while July sees a heavier rainfall of 493 mm (19.4 in) over 22 days. Humidity is marginally lower in August at 91%, as opposed to July's 93%. For more information, you can check out Yamagata weather in July.
August experiences hotter temperatures compared to September, with average highs reaching 38°C (100°F) in August, while September sees a maximum temperature of 35°C (95°F). The minimum temperatures in August also start higher at 18°C (64°F) versus September's cooler 12°C (54°F). While both months receive significant rainfall, August typically encounters more precipitation, totaling 322 mm (12.7 in) over 18 days, compared to September’s 298 mm (11.7 in) over 16 days. Humidity levels are quite high in both months, but August is slightly more humid at 91%, compared to 87% in September. Overall, September offers a transition to cooler weather, making it more comfortable for outdoor activities. For more insights, you can check Yamagata weather in September.
August and October present striking contrasts in weather. August is characterized by warm temperatures, with a minimum of 18°C (64°F) and an average high reaching up to 38°C (100°F), making it a hot and humid month with a staggering 91% humidity. Additionally, August sees significant rainfall, totaling 322 mm (12.7 in) over 18 days, creating a lush and damp environment. In contrast, October brings much cooler temperatures, with a minimum of 6°C (43°F) and an average of 18°C (64°F), while still allowing for a maximum temperature of 31°C (88°F). Precipitation decreases to 234 mm (9.2 in) over 14 days, and the humidity drops slightly to 85%. For more detailed insights into weather conditions, check out Yamagata weather in October.
August and November showcase strikingly different weather patterns. In August, temperatures soar with a minimum of 18°C and an average high of 27°C, reaching up to a scorching maximum of 38°C, complemented by high humidity levels at 91%. This summer month also sees substantial rainfall, with 322 mm of precipitation over 18 days. In stark contrast, November experiences a cooler climate, with temperatures ranging from a minimum of 1°C to a comfortable average of 12°C, peaking at a mild 22°C. Rainfall is significantly reduced to 74 mm, occurring over just 7 days, and while humidity drops to 83%, it still remains relatively high. For more detailed insights, check out Yamagata weather in November.
In August, the weather is characterized by high temperatures, with averages reaching 27°C (82°F) and peaks soaring up to 38°C (100°F). This month experiences significant rainfall, with 322 mm (12.7 in) of precipitation spread over 18 days, contributing to a high humidity level of 91%. In stark contrast, December brings much cooler temperatures, where the average drops to 6°C (43°F) and can dip as low as -5°C (23°F). Additionally, December sees far less precipitation, totaling only 94 mm (3.7 in) over 12 days, accompanied by a lower humidity of 83%. For a detailed overview of weather conditions in December, visit Yamagata weather in December.
August in Yamagata is defined by its sizzling temperatures and high humidity, making it one of the hottest months of the year. With an average temperature soaring to a balmy 27°C, this month offers a stark contrast to the cooler and crisper conditions found in the preceding months. This heat is often accompanied by significant rainfall, with frequent downpours occurring throughout the month, contributing to the region's lush landscapes. Despite the discomfort of high temperatures and humidity, August is a time of vibrant summer life. For more insights into the climate throughout the year, check out Yamagata Climate.