Last updated: August 21, 2025
August in Yamanashi, Japan brings a mix of summer warmth and humidity, with average temperatures hovering around 23°C (73°F). Daytime highs can reach up to 33°C (91°F), while nights offer a cooler respite with temperatures dipping to a minimum of 12°C (55°F). This month also sees frequent rainfall, tallying 190 mm (7.5 in) over 23 days. With humidity levels soaring to 90%, visitors should be prepared for a tropical feel, making it essential to stay hydrated while exploring the region's stunning landscapes.
In Yamanashi, Japan, August stands out as one of the warmest months of the year, showcasing a remarkable range of temperatures that encapsulate the essence of summer. With a minimum temperature of 12°C (55°F) and soaring to a peak of 33°C (91°F), the month offers a delightful average temperature of 23°C (73°F). This heat is a notable leap from the cooler depths of winter in January, where temperatures can plunge to -17°C (2°F). As the summer progresses, Yamanashi experiences a gradual rise in warmth from July's average of 21°C (70°F), reaching peak enjoyment in August. The mild evenings invite outdoor activities, while the higher daytime temperatures encourage exploration of the region’s stunning landscapes. Overall, August captures the vibrancy of summer in Yamanashi, making it an ideal time for visitors to bask in the warmth and beauty of this picturesque locale.
In August, Yamanashi experiences a significant precipitation total of 190 mm (7.5 in), falling from the peak rainfall of July, which recorded a remarkable 320 mm (12.6 in). With 23 rainy days, August maintains a high frequency of precipitation, hinting at the region's wet summer climate. This trend reflects the overall seasonal pattern, as rainfall gradually increases from the earlier months, peaking in the summer, before tapering off in the autumn. The increase from 148 mm in May to 190 mm in August underscores the shift towards the wetter period, marking a pivotal time for the lush landscapes of Yamanashi.
In Yamanashi, Japan, August sees a humidity level of 90%, contributing to the region's rich, lush landscapes. As summer reaches its peak, humidity has steadily climbed since June, when it hit 88%, and continued to rise through July at 93%. This pattern reflects a warm, muggy summer that contrasts with the lower humidity levels found earlier in the year, such as 70% in March and 74% in April. While August experiences a slight dip compared to July, it still remains notably high, signaling the grip of summer before a gradual decline in humidity begins in September, when it drops to 86%. Overall, the trend showcases a humid summer season, which is ideal for the region's vibrant flora.
In August, Yamanashi experiences an extreme UV Index of 11, mirroring the high levels observed in May, June, and July. This consistency highlights the necessity for sun protection, as the burn time is drastically reduced to just 10 minutes during this peak summer month. Visitors and locals alike should remain vigilant, particularly as the sun's intensity can lead to rapid skin damage. With a slight decrease as the month progresses into September with a UV Index of 10, it’s a reminder to be mindful of sun safety practices. For more insights and details on the UV Index in Yamanashi, check out Yamanashi UV Index.
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August in Yamanashi, Japan, basks in sunshine with an impressive 275 hours of sunlight, making it one of the sunniest months of the year. Following the warm trend set from May's peak at 283 hours, August maintains a delightful brightness, even as the days begin to shorten. This summer month stands in contrast to the cooler, cloudier days of July, which saw a dip to 220 hours. The sunshine hours gradually increase from the winter months, where January offers a modest 191 hours, crescendoing towards the vibrant summer. As September approaches, a slight decline to 229 hours reminds us that the warmth of summer is transitioning, but the lingering glow of August leaves a lasting impression of sunny days.
In Yamanashi, Japan, August marks a significant dip in the likelihood of sunny weather, with the chance of sunshine dropping to just 23%. This figure is notably lower than the preceding months, especially July, which offers a slightly better 21% chance of clear skies. As summer progresses, the sunny days seem to wane, hinting at the seasonal shift towards wetter conditions in the fall. The trend is evident as we move from the vibrant sunshine of earlier months, like February’s 66% and January’s 57%, to August’s gloom, making it one of the least promising months for sun-seekers in the region.
In Yamanashi, Japan, the daylight duration experiences a captivating transformation throughout the year. Starting with a modest 10 hours in both January and February, the days gradually lengthen as spring approaches, peaking at 14 hours by June through July. As summer gives way to early autumn, the daylight begins to wane, dropping to 13 hours in August before continuing its descent to 12 hours in September and further down to 11 hours in October. This pattern reflects the rhythmic ebb and flow of the seasons, illustrating how the vibrant days of summer gradually transition into the softer light of autumn, creating a beautiful backdrop for Yamanashi’s picturesque landscapes.
In Yamanashi, Japan, the wind speed during the month of August settles at a gentle 1.5 m/s (3 mph), reflecting a pattern of calmness typical as summer reaches its peak. This moderate breeze is a continuation of a trend seen throughout the year, with the wind generally tapering off during the warmer months, peaking in the cooler, transitional months of January and November when speeds are notably higher, averaging around 1.8 m/s (4 mph). From April to August, wind speeds remain uniformly low, hovering around the 3 mph mark, creating a serene atmosphere ideal for enjoying the lush landscapes of the region. As autumn approaches, a slight uptick to 1.6 m/s (4 mph) in November hints at the return of brisker winds, signaling nature's shift once again—an inviting prelude to the changing seasons.
Weather in Yamanashi varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Yamanashi, focusing on differences in temperature, rainfall, humidity, and UV levels.
In August, the weather is warm and humid, with temperatures ranging from a cool 12°C (55°F) at night to a hot 33°C (91°F) during the day. The month experiences significant rainfall, with around 190 mm (7.5 in) distributed over approximately 23 days, contributing to the high humidity of 90%. In contrast, January brings cold and frigid temperatures, with a minimum of -17°C (2°F) and a maximum of 11°C (52°F), resulting in an average temperature of -1°C (31°F). Precipitation is much lower in January, with only 48 mm (1.9 in) falling over 6 days, and the humidity sits at a comparatively drier 76%. For more detailed insights about January weather, you can check Yamanashi weather in January.
August and February present starkly contrasting weather conditions. In August, temperatures range from a mild 12°C (55°F) to a scorching 33°C (91°F), accompanied by high humidity levels at 90%. This month also sees significant rainfall, with 190 mm (7.5 in) spread over 23 days. Conversely, February experiences much cooler temperatures, with averages hovering around 0°C (33°F) and reaching a maximum of 17°C (63°F). Precipitation is comparatively lower at 58 mm (2.3 in) over just 9 days, and humidity sits at a more temperate 74%. For more detailed information on February weather, check out Yamanashi weather in February.
When comparing the weather in August and March, distinct contrasts emerge. August boasts warmer temperatures, with an average of 23°C (73°F) and highs reaching up to 33°C (91°F), while March has a much cooler average of just 5°C (41°F) and max temperatures peaking at 21°C (70°F). Precipitation is quite common in both months; however, August typically experiences more rain with 190 mm (7.5 in) over 23 days, compared to March's 144 mm (5.7 in) distributed over 13 days. Humidity levels are also higher in August at 90%, while March enjoys a drier atmosphere with 70% humidity. For more detailed insights on March weather, check out Yamanashi weather in March.
When comparing the weather in August and April, there are stark contrasts. In August, temperatures soar with a minimum of 12°C (55°F) and an average of 23°C (73°F), reaching peaks of 33°C (91°F). This month is characterized by high humidity at 90% and significant precipitation, totaling 190 mm (7.5 in) over 23 days. In contrast, April experiences much cooler temperatures, ranging from a minimum of -4°C (25°F) to a maximum of 25°C (78°F), with an average temperature of 9°C (48°F). Precipitation is lower in April at 138 mm (5.4 in) across 15 days, and humidity also sits at a more comfortable 74%, making it a refreshing transition from winter. For more detailed information, you can visit Yamanashi weather in April.
In comparing the weather of August and May, August tends to be significantly warmer, with average temperatures reaching 23°C (73°F) compared to May's average of 14°C (58°F). August sees a broader range, with maximum temperatures peaking at 33°C (91°F), while May's highs reach only 28°C (82°F). Precipitation is more frequent in August, occurring on 23 days with a total of 190 mm (7.5 in), compared to 15 days of rain in May with 148 mm (5.8 in). Additionally, the humidity level is higher in August at 90%, compared to 81% in May, contributing to a more muggy feel during the peak of summer. For more detailed information about May's weather, you can check Yamanashi weather in May.
When comparing the weather in August and June, it's evident that August tends to be warmer and more humid. In August, temperatures range from a minimum of 12°C (55°F) to a maximum of 33°C (91°F), with an average temperature of 23°C (73°F). In contrast, June has cooler temperatures, with a minimum of 7°C (44°F), a maximum of 28°C (82°F), and an average of 17°C (63°F). While both months experience a significant amount of precipitation—190 mm (7.5 in) in August and 179 mm (7.1 in) in June—August sees rain on more days (23) compared to June (19). Both months also have high humidity, but August is slightly more humid at 90% compared to June's 88%. For more detailed information, you can visit Yamanashi weather in June.
In comparing the weather patterns of July and August, August showcases slightly warmer temperatures, with an average of 23°C (73°F) and a maximum of 33°C (91°F), while July has a lower average of 21°C (70°F) and a peak of 32°C (90°F). Interestingly, July experiences more precipitation, totaling 320 mm (12.6 in) over 24 days, compared to August's 190 mm (7.5 in) over 23 days. Both months are characterized by high humidity, with July being slightly more humid at 93% compared to August’s 90%. For an in-depth look at July's climate specifics, you can refer to Yamanashi weather in July.
August and September exhibit notable differences in weather conditions. In August, temperatures range from a minimum of 12°C (55°F) to a maximum of 33°C (91°F), with an average of 23°C (73°F). The month is characterized by high humidity at 90% and considerable precipitation, totaling 190 mm (7.5 in) over 23 days. In contrast, September sees a drop in temperatures, with a minimum of 9°C (49°F) and an average temperature of 18°C (65°F), peaking at 31°C (87°F). Although September has slightly higher precipitation at 208 mm (8.2 in) spread across 22 days, the humidity decreases to 86%. For more detailed insights, check out Yamanashi weather in September.
In August, the weather tends to be much warmer with temperatures ranging from a minimum of 12°C to a maximum of 33°C, bringing an average temperature of 23°C. However, it also experiences significant rainfall, with around 190 mm over 23 days, resulting in a high humidity level of 90%. In contrast, October shows a marked drop in temperatures, ranging from a cool 2°C to a pleasant 27°C, with an average of just 13°C. Interestingly, October has even higher precipitation at 324 mm over 19 days, though the humidity is slightly lower at 83%. For more details about October weather specifically in Yamanashi, check out Yamanashi weather in October.
August and November present a striking contrast in weather patterns. In August, temperatures range from a minimum of 12°C (55°F) to a sweltering maximum of 33°C (91°F), accompanied by high humidity at 90% and substantial precipitation of 190 mm (7.5 in) over 23 days. In contrast, November experiences much cooler temperatures, with a minimum of -4°C (26°F) and an average of just 7°C (45°F), peaking at 19°C (66°F). This month also sees a significant decrease in rainfall, totaling only 56 mm (2.2 in) over 10 days and a lower humidity of 80%. For more details, check out Yamanashi weather in November.
August and December present stark contrasts in weather conditions. August features warm temperatures, with an average of 23°C (73°F) and highs reaching up to 33°C (91°F), accompanied by high humidity levels of 90% and significant rainfall totaling 190 mm (7.5 in) over 23 days. In contrast, December experiences a much colder climate, where the average temperature drops to 2°C (36°F), with a minimum of -8°C (17°F) and a maximum of 18°C (65°F). Precipitation is also lower in December, averaging just 52 mm (2.1 in) across 8 days, and humidity decreases to 78%. These differences highlight the distinct seasonal shifts in Yamanashi's weather throughout the year. For more details, you can check Yamanashi weather in December.
August in Yamanashi is characterized by warm temperatures and high humidity, making it a notable contrast to the cooler months of the year. The days can reach up to 33°C (91°F), and while this warmth is inviting, it often comes with frequent rainfall, as evidenced by a substantial 190 mm (7.5 in) of precipitation over nearly three weeks. This combination of warmth and moisture creates a lush, vibrant environment, ideal for outdoor activities, yet it also necessitates preparation for sudden showers. As the summer draws to a close, the climate begins to shift, hinting at the cooler, drier months ahead. For those keen on understanding Yamanashi's diverse weather patterns, more information can be found at Yamanashi Climate.