Last updated: August 21, 2025
In August, China and Japan experience warm and humid weather, with temperatures peaking at a maximum of 30°C (87°F) and averaging around 28°C (83°F). Nighttime lows rarely dip below 25°C (78°F), creating a consistently comfortable yet muggy atmosphere. The region sees significant rainfall, with total precipitation reaching 152 mm (6.0 in) over approximately 14 days throughout the month, contributing to an average humidity level of 82%. Travelers should be prepared for possible rain, but the warm temperatures offer inviting conditions for exploration and outdoor activities.
In August, temperatures in China and Japan reach their peak, showcasing a culmination of summer warmth. With minimum temperatures hovering around 25°C (78°F) and averages sitting comfortably at 28°C (83°F), the month is characterized by heat and humidity. The maximum temperatures, consistent with the previous month, cap off at a balmy 30°C (87°F). Notably, the gradual rise in temperatures throughout the summer months, from a cool 12°C (53°F) in January to the sizzling peaks of August, highlights a clear trend of increasing warmth as the year progresses. This consistent elevation in temperature not only marks August as the height of summer but also sets the stage for the gradual cooling as autumn approaches. Such trends paint a vivid picture of climate rhythms in these two diverse nations, making August a key period of seasonal transition.
In August, China and Japan experience significant rainfall, with precipitation totaling 152 mm (6.0 in) over approximately 14 days. This marks a slight decrease from the previous month's 403 mm (15.9 in) but is still representative of the wet summer season characterized by high humidity and monsoon influences. Notably, the trend from May through August highlights a peak in June, during which precipitation reaches its zenith, followed by a gradual decline, yet remains relatively high in August. This dynamic suggests a robust monsoon pattern, as the region transitions towards fall, paving the way for increased rainfall again in September. Overall, the fluctuation in precipitation reflects the intricate seasonal shifts that define the climate of East Asia.
In August, humidity in both China and Japan dips slightly to 82%, marking a subtle decline from the peak values observed in June and July at 86%. This trend reflects the typical summer pattern where the air is heavily saturated, particularly in the early months of summer, followed by a gradual easing as autumn approaches. Leading into September, humidity levels maintain consistency at 82%, hinting at a seasonal transition that brings relief from the sweltering heat. Throughout the year, a noticeable rise can be observed as humidity builds from 71% in January to the summer highs, emphasizing the region’s characteristic climatic shifts and the interplay of heat and moisture.
In August, the UV Index in China and Japan remains consistently high at 13, maintaining an extreme exposure category that demands vigilance. This trend of elevated UV levels, continuing from the previous months of June and July, emphasizes the need for sun protection, as the recommended burn time is a mere 10 minutes. Such persistent intensity is characteristic of the summer months, where sun safety becomes increasingly crucial. As the season begins to transition into September, individuals should stay informed and proactive to mitigate the risks associated with prolonged sun exposure. For more details on understanding UV levels throughout the year, visit China UV Index.
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As summer reaches its peak in August, both China and Japan bask in an impressive 318 hours of sunshine, marking a high point in the year. This surge in sunny days follows a steady climb from January's modest 149 hours, showcasing a clear upward trend as the seasons transition. Notably, each month of summer, particularly July and August, consistently outshines the rest of the year, with July alone bringing in 315 hours of radiant daylight. As the autumn months approach, September begins to taper off slightly to 292 hours, yet still maintains a vibrant brightness compared to earlier in the year. Overall, this pattern reveals a delightful arc of increasing sunlight throughout the warmer months, contributing significantly to the enjoyable experiences of residents in both countries.
When examining the likelihood of sunny weather in August across China and Japan, it's interesting to note that the chance of seeing the sun stands at 39%. This places August in the middle range of sunny opportunities, showing a slight downturn compared to the peak sunny month of September, which boasts a 58% chance. While June experiences the least sun at just 11%, things begin to improve in July and August, before transitioning into the more promising fall months. As the year progresses, the trends suggest that late summer and early autumn present a more favorable outlook for those seeking sunny days, with August serving as a noteworthy transitional point.
In August, both China and Japan experience a peak in daylight duration, with an impressive 13 hours of sunlight gracing the skies. This trend follows a steady increase from 10 hours in January, showcasing the gradual lengthening of days as spring evolves into summer. The months of May to August maintain this high level of brightness, offering vibrant opportunities for outdoor activities and cultural events. Interestingly, as September rolls in, daylight begins its gentle descent towards 12 hours, signaling the transition into autumn. This cyclical pattern highlights the beautiful rhythm of seasons that both countries experience, inviting locals and tourists alike to savor the lingering summer warmth before the days shorten once more.
In August, as summer begins to wane, wind speeds in both China and Japan average 6.9 m/s (15 mph), marking a noticeable dip from the breezier months of early summer. Following a gradual decline from July's 7.6 m/s (17 mph), this reduction embodies the transition into autumn. The overall trend reveals a significant ebb in wind intensity from the spring months, where speeds peaked around 8.1 m/s (18 mph) in both January and November. As the year progresses, the winds tend to calm, particularly noted in September, when speeds drop to the yearly low of 5.6 m/s (12 mph). This cyclical pattern not only highlights the seasonal shifts but also reflects the dynamic nature of wind patterns across these regions.
Weather in China varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in China, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present strikingly different weather patterns. In August, temperatures soar with a minimum of 25°C (78°F) and an average of 28°C (83°F), peaking at a high of 30°C (87°F). The month is marked by significant precipitation, totaling 152 mm (6.0 in) over 14 days, coupled with a high humidity level of 82%. In contrast, January offers much cooler temperatures, with a minimum of 12°C (53°F) and an average of 18°C (64°F), reaching a maximum of 23°C (74°F). Precipitation is also lower in January, at 105 mm (4.1 in) over about 10 days, and humidity drops to 71%. For a more comprehensive overview of weather trends in January, you can check China weather in January.
In August, the weather is marked by warm temperatures, with a minimum of 25°C (78°F) and average highs reaching up to 30°C (87°F). The month experiences considerable rainfall, totaling 152 mm (6.0 in) over 14 days, accompanied by high humidity levels at 82%. In contrast, February offers a cooler climate, featuring a minimum temperature of 11°C (52°F) and a comfortable average of 18°C (64°F), peaking at 24°C (75°F). Precipitation is less frequent, with 113 mm (4.5 in) over just 13 days, and the humidity is comparatively lower at 71%. For more information about February weather in this region, you can refer to China weather in February.
In August, the weather is characterized by warm temperatures, with a minimum of 25°C (78°F) and an average of 28°C (83°F), peaking at 30°C (87°F). This month also experiences high humidity at 82% and considerable rainfall, averaging 152 mm (6.0 in) over 14 days. In contrast, March offers a cooler climate, featuring temperatures that range from a minimum of 14°C (57°F) to a maximum of 24°C (75°F), with an average of 19°C (67°F). Although March has slightly less precipitation at 138 mm (5.5 in) spread across 13 days, it enjoys lower humidity levels at 76%. For more details on March weather, you can refer to China weather in March.
When comparing August and April weather, it's evident that August tends to be hotter and more humid. In August, temperatures range from a minimum of 25°C (78°F) to a maximum of 30°C (87°F), with an average of 28°C (83°F). In contrast, April features milder temperatures, with a minimum of 15°C (59°F) and a maximum of 25°C (78°F), averaging 21°C (70°F). While both months experience high humidity at 82%, August receives more precipitation, with 152 mm (6.0 in) over 14 days compared to April's 119 mm (4.7 in) over 12 days. For more detailed insights into April weather, visit China weather in April.
In comparing the weather of August and May, August tends to be warmer, with average temperatures ranging from a minimum of 25°C (78°F) to a maximum of 30°C (87°F), while May sees cooler temperatures, with averages between 19°C (66°F) and 27°C (80°F). Despite August being slightly more humid at 82% compared to May's 84%, it experiences less precipitation overall, accumulating about 152 mm (6.0 in) over 14 days, in contrast to May's 206 mm (8.1 in) over 13 days. For more detailed information, you can visit China weather in May.
When comparing the weather in August and June, August tends to be slightly warmer, with average temperatures between 25°C (78°F) and 30°C (87°F), while June has a cooler range with temperatures from 22°C (71°F) to 28°C (83°F). However, June experiences significantly higher precipitation, totaling 403 mm (15.9 in) over 20 days compared to August's 152 mm (6.0 in) over 14 days. Additionally, humidity levels are similar, with June slightly higher at 86% compared to August's 82%. For more detailed information on June weather, you can check China weather in June.
In comparing the weather of August and July, we notice that both months experience similar temperature ranges, with average temperatures hovering around 28°C (82°F to 83°F). However, August brings slightly lower minimum temperatures of 25°C (78°F) compared to July's minimum of 26°C (78°F). While both months see a maximum temperature of 30°C (87°F), August is characterized by increased precipitation, totaling 152 mm (6.0 in) over 14 days, whereas July has a higher rainfall of 174 mm (6.8 in) over just 11 days. Additionally, humidity levels are slightly lower in August at 82%, compared to 86% in July. For more information on July weather patterns, you can refer to China weather in July.
In comparing the weather between August and September, both months experience similar temperature ranges, with August having a minimum of 25°C (78°F) and an average of 28°C (83°F), while September sees slightly lower minimums at 24°C (75°F) and the same average of 28°C (82°F). However, September is typically wetter, with total precipitation reaching 210 mm (8.3 in) on 20 days compared to August's 152 mm (6.0 in) over 14 days. Interestingly, humidity remains consistent for both months at 82%, making the overall experience similarly muggy despite the increase in rainfall in September. For more detailed insights on weather patterns, check out China weather in September.
August typically offers warmer temperatures, with an average of 28°C (83°F) and maximums reaching 30°C (87°F). This month experiences high humidity levels at 82% and significant rainfall, totaling 152 mm (6.0 in) over about 14 days. In contrast, October brings a slight drop in temperature, averaging 26°C (78°F) with maximums of 29°C (84°F) and a minimum temperature of 21°C (70°F). Rainfall is slightly less in October, at 142 mm (5.6 in) over 13 days, and humidity decreases to 80%. For more detailed information, you can check China weather in October.
In comparison to August, November experiences significantly cooler temperatures, with average highs of 27°C (80°F) compared to August's 30°C (87°F). The minimum temperatures in November are also lower, starting at 18°C (65°F) versus August's 25°C (78°F). Additionally, November sees less rainfall, with 112 mm (4.4 in) over 11 days, while August has a higher precipitation level of 152 mm (6.0 in) across 14 days. Humidity levels are slightly lower in November at 79%, compared to 82% in August, making for a more comfortable atmosphere. For more detailed information about November weather, visit China weather in November.
August and December showcase stark contrasts in weather. August typically sees warmer temperatures, with minimums around 25°C (78°F) and maximums reaching up to 30°C (87°F), alongside high humidity levels at 82%. In contrast, December brings cooler conditions, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 25°C (77°F) and a lower humidity of 75%. Both months experience notable precipitation, with August receiving slightly more at 152 mm (6.0 in) over 14 days, while December sees 135 mm (5.3 in) across 15 days. For more information on December weather, visit China weather in December.
As August unfolds in China, the weather creates a unique experience characterized by its warm temperatures and high humidity, setting it apart from other months. While the average highs hover around 28°C, the feel of the air, laden with 82% humidity, makes for a more intense warmth. Coupled with a significant precipitation amount and roughly half the month marked by rainy days, August stands out as a month of the shifting season, often signaling the transition into the autumn chill. This blend of heat and moisture provides a lush vibrancy to the landscape. For a more detailed understanding of the prevailing conditions, visit China Climate.