Last updated: August 21, 2025
Oshu, Japan in August is characterized by warm temperatures and high humidity, creating a vibrant summer atmosphere. Daytime highs can reach a maximum of 34°C (94°F), while the average temperature settles around 23°C (74°F), offering a pleasant climate for outdoor activities. However, nights can be cooler, dipping to a minimum of 10°C (51°F). Visitors should be prepared for the region's frequent rainfall, with 167 mm (6.6 in) of precipitation over the month and 18 rainy days, contributing to a humidity level of 92%. This unique blend of warmth and moisture shapes Oshu's distinct summer experience, ideal for those who enjoy lush landscapes and vibrant local culture.
In Oshu, Japan, August brings a warm embrace as summer peaks, with temperatures ranging from a comfortable 10°C (51°F) at night to a sizzling 34°C (94°F) during the day. This month showcases an inviting average of 23°C (74°F), making it the warmest time of the year, a stark contrast to the frigid depths of winter, where thermometers plummet to minus figures. As the month progresses, the warmth encourages outdoor activities, allowing residents and visitors alike to relish the vibrant atmosphere of summer. This trend of increasing temperatures from the cooler months culminates in August’s pleasant heat, signaling the joy and vitality of life in this charming Japanese locale.
In Oshu, Japan, August experiences a notable surge in precipitation, with total rainfall reaching 167 mm (6.6 in) over the course of 18 days. This pattern marks a slight decline from July's peak of 182 mm, yet remains significant as part of the summer's rainy season. The humidity lingers, contributing to lush landscapes and vibrant greenery. As summer transitions into autumn, the weather begins to equilibrate; September sees a drop to 117 mm in rainfall, illustrating the shift we can expect as the seasons change. Overall, August stands out in Oshu’s climatological rhythm, reflecting the region's dynamic weather patterns and the abundance of moisture typical for late summer months.
In Oshu, Japan, August brings a peak in humidity, soaring to 92%, a level matched only by July. This summer month signals the culmination of a gradual rise in moisture, starting from the cooler, drier air of January, where humidity stands at 80%. As the seasons transition, humidity levels tend to follow a consistent upward trend, peaking during the height of summer with June and July showing significant increases. Post-August, a gradual decline unfolds, with September cooling to 86% and reaching more comfortable levels by October. This pattern highlights Oshu's distinct seasonal shifts, where the summer months are notably marked by a palpable increase in humidity, fostering a lush and vibrant environment.
In August, Oshu, Japan, experiences a UV Index of 10, indicating a very high level of solar exposure. This peak intensity is consistent with the trends observed in the preceding months of June and July, where the UV Index also reached 10, requiring a minimal burn time of only 15 minutes. As summer continues, residents and visitors should remain vigilant, employing sun protection strategies to mitigate the risk of sunburn. Interestingly, the UV Index begins to decrease after August, dropping to 9 in September, yet it maintains a very high exposure category. Staying informed about the UV Index is crucial for safe outdoor activities; for more information, visit Oshu UV Index.
UV Risk Categories
August in Oshu, Japan, shines with 251 hours of sunlight, marking a peak in a summer that transitions from the light of May, which boasts the most sunlight at 290 hours, to the declining days of autumn. As the year progresses, there's a noticeable pattern: sunlight hours steadily increase from a low of 165 hours in January, culminating in the sunny days of late spring and early summer. After hitting the summer high, however, the sunlight begins to wane, with September seeing a dip to 239 hours. This rhythm of fluctuating light not only illustrates the changing seasons but also sets the stage for Oshu’s vibrant landscapes to thrive, inviting both residents and visitors to enjoy the natural beauty throughout the year.
August in Oshu, Japan, tends to be one of the least sunny months, with only an 18% chance of clear skies. This is a notable decline from the more promising 43% likelihood in February and a stark contrast to the sunnier days of late spring and early autumn, where chances hover around the 25-41% range. As the summer progresses, the sunshine seems to retreat, reaching its nadir in August—making it a month where overcast skies are more common than bright sunshine. As you plan your August activities, be sure to account for the possibility of cloudy weather and prepare for a bit of unpredictability!
In Oshu, Japan, the daylight duration reaches a peak during the spring and early summer months, with a maximum of 14 hours of sunlight in May, June, and July. As August arrives, there is a gentle decline in daylight hours to 13 hours, signaling the gradual transition toward autumn. This subtle decrease continues into September, where daylight dwindles to 12 hours, before further tapering off as the year progresses. The trend showcases the vibrant, lengthy days of summer slowly giving way to the cozy, shorter days of fall, encapsulating the beautiful seasonal shifts that define life in this region.
In Oshu, Japan, August brings a gentle sigh of wind, averaging 2.1 m/s (5 mph). This slight uptick from the low of 1.8 m/s in July reflects a subtle resurgence in breeziness as summer wanes. Interestingly, wind speeds throughout the earlier summer months have dipped, with June and July offering the calmest conditions. However, August marks the end of this lull, as September and October maintain the same mild winds. This pattern suggests that while the summer heat may be fading, the light winds continue to refresh Oshu, inviting residents and visitors alike to enjoy the serene ambiance of the season. Overall, the wind in August serves as a gentle reminder that despite the shifting seasons, the landscape remains beautifully serene.
Weather in Oshu varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Oshu, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present starkly contrasting weather conditions. In August, temperatures rise significantly, ranging from a minimum of 10°C (51°F) to a sweltering maximum of 34°C (94°F), with an average of 23°C (74°F). The month is fairly humid, with 92% humidity and 167 mm (6.6 in) of precipitation spread over 18 days. In contrast, January is characterized by frigid temperatures, with lows plunging to -22°C (-8°F) and a high of only 7°C (45°F), averaging -2°C (30°F). Precipitation is much lighter in January, totaling 56 mm (2.2 in) over 12 days, and the humidity, while lower at 80%, still contributes to the biting cold. For a more detailed look at January weather, you can visit Oshu weather in January.
August and February present contrasting weather conditions. In August, temperatures range from a minimum of 10°C (51°F) to a maximum of 34°C (94°F), with an average of 23°C (74°F). This month also sees significant rainfall, totaling 167 mm (6.6 in) over about 18 days, coupled with high humidity levels at 92%. In stark contrast, February experiences much chillier temperatures, with a minimum of -18°C (0°F) and a maximum of 11°C (52°F), averaging -1°C (31°F). Precipitation is lower in February at 69 mm (2.7 in) across 14 days, and humidity stands at 79%. This dramatic difference highlights the transition from the warmth and dampness of summer to the cold and drier atmosphere of winter. For more specific details on February weather, you can visit Oshu weather in February.
August and March present starkly contrasting weather conditions. In August, average temperatures hover around a warm 23°C (74°F), peaking at a sweltering 34°C (94°F), while March experiences much cooler conditions, with an average of only 4°C (39°F) and a maximum of 20°C (68°F). July sees significant precipitation of 167 mm (6.6 in), falling over 18 days, compared to March's 106 mm (4.2 in) across 14 days. Additionally, August is characterized by high humidity levels at 92%, making it feel much hotter, whereas March has a more comfortable humidity of 77%. For a detailed look at the weather in March, visit Oshu weather in March.
In comparing the weather between August and April, it’s clear that August is significantly warmer and more humid. August experiences average temperatures of 23°C (74°F) with highs reaching up to 34°C (94°F), while April’s average temperature is much cooler at 8°C (47°F), peaking at 25°C (77°F). Additionally, August has higher humidity levels at 92% compared to April's 75%. Precipitation is also more pronounced in August, with 167 mm (6.6 in) over 18 days, compared to April's 119 mm (4.7 in) across 15 days. For more insights on April weather, you can visit Oshu weather in April.
August and May present quite a contrast in weather patterns. In August, temperatures range from a minimum of 10°C (51°F) to a maximum of 34°C (94°F), with an average temperature of 23°C (74°F). The month experiences higher humidity levels at 92% and significant precipitation totaling 167 mm (6.6 in) over 18 days. In contrast, May offers cooler temperatures, with a minimum of 3°C (38°F), an average of 14°C (58°F), and a maximum of 30°C (87°F). This month sees less precipitation, with 114 mm (4.5 in) spread across 13 days and lower humidity at 80%. For a detailed look at May's weather, you can check Oshu weather in May.
When comparing the weather in August to June, we see distinct differences in temperature and precipitation. August experiences warmer temperatures with a minimum of 10°C and an average of 23°C, peaking at 34°C, while June's temperatures range from a minimum of 7°C to an average of 18°C, reaching a maximum of 30°C. Additionally, August receives more precipitation, totaling 167 mm over 18 days, compared to June's 129 mm over 14 days. Humidity levels are also higher in August at 92%, compared to June’s 87%. For more detailed information, you can check Oshu weather in June.
In comparing the weather of August and July, we see some notable differences. August features slightly higher temperature variations with a minimum of 10°C (51°F), an average of 23°C (74°F), and a maximum of 34°C (94°F). In contrast, July's temperatures are consistently warmer, ranging from a minimum of 14°C (57°F), an average of 22°C (72°F), to a maximum of 33°C (92°F). While both months experience high humidity levels at 92%, August sees a small decrease in total precipitation, accumulating 167 mm (6.6 in) over 18 days compared to July's 182 mm (7.2 in) over 17 days. For a more detailed look at July's weather patterns, you can visit Oshu weather in July.
August typically brings warm and humid conditions, with average temperatures around 23°C (74°F) and daily highs peaking at 34°C (94°F). However, it also sees considerable rainfall, with 167 mm (6.6 in) spread across 18 days, resulting in a high humidity level of 92%. In contrast, September experiences a drop in temperature, with average lows of 4°C (39°F) and an average of 19°C (67°F). The month also sees less precipitation, totaling 117 mm (4.6 in) over 12 days, with a slight decrease in humidity levels to 86%. For a detailed overview, check out Oshu weather in September.
August and October present quite distinct weather patterns. In August, temperatures range from a minimum of 10°C (51°F) to a maximum of 34°C (94°F), with an average of 23°C (74°F). The month is characterized by high humidity at 92% and considerable precipitation, amounting to 167 mm (6.6 in) over 18 days. In contrast, October experiences cooler temperatures, with a minimum of 0°C (33°F), an average of 13°C (55°F), and a maximum of 27°C (80°F). Although precipitation is slightly lower at 154 mm (6.1 in) over 12 days, the humidity decreases to 82%. For more detailed information on October weather, check out Oshu weather in October.
August and November present strikingly different weather characteristics. In August, temperatures soar with a minimum of 10°C (51°F) and an average high of 34°C (94°F), accompanied by high humidity levels of 92%, making the month typically hot and muggy. In contrast, November experiences a much cooler climate, with minimum temperatures dipping to -4°C (24°F) and an average maximum of just 19°C (66°F). Additionally, November sees significantly less precipitation at 56 mm (2.2 in) over about 10 days, compared to August's 167 mm (6.6 in) spread across 18 days. For more detailed information about the weather in November, you can visit Oshu weather in November.
In August, the weather is warm and humid, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 34°C (94°F) and an average of 23°C (74°F). The month typically sees high humidity, at 92%, and is marked by significant rainfall, accumulating to 167 mm (6.6 in) over 18 days. In contrast, December presents a starkly different climate, where temperatures drop significantly, ranging from a minimum of -10°C (14°F) to a maximum of 14°C (58°F), with an average of just 1°C (33°F). Precipitation is lower than in August at 78 mm (3.1 in), though spread over 17 days, and humidity decreases to 80%. For more detailed insights on December weather, visit Oshu weather in December.
In August, Oshu experiences a distinctive blend of warm temperatures, with highs soaring to 34°C (94°F) and an average of 23°C (74°F), setting it apart from the cooler months of the year. However, the season also brings considerable humidity, hovering around 92%, and frequent rain, with nearly half of the month marked by precipitation. This combination of warmth and moisture creates a lush environment, contrasting sharply with the drier, cooler conditions of spring and autumn. For more detailed insights into Oshu's weather throughout the year, be sure to explore Oshu Climate.