Last updated: August 21, 2025
August in Chengdu, China presents a vibrant blend of warmth and humidity, with temperatures soaring to a maximum of 40°C (104°F) and an average of 27°C (80°F), ensuring a sultry atmosphere. The month experiences a substantial 409 mm (16.1 in) of rainfall over 21 days, contributing to a high humidity level of 92%. This combination makes August one of the wettest months, where the lush greenery thrives amid the heat, creating a rich and dynamic landscape that captivates locals and visitors alike.
In August, Chengdu, China experiences its warmest temperatures of the year, characterized by a minimum of 18°C (64°F) and reaching a sweltering maximum of 40°C (104°F). This month sees an average temperature of 27°C (80°F), making it a peak time for outdoor activities and cultural festivals. As the summer progresses, the heat intensifies, transitioning from the milder conditions of earlier months—where averages hover around the low twenties. With August's significant warmth, residents and visitors alike flock to enjoy Chengdu’s vibrant street life and delicious cuisine, but they should be prepared for the heat when exploring this lively city.
August marks the peak of the rainy season in Chengdu, China, with precipitation soaring to 409 mm (16.1 in), a stark increase from the previous month. This significant rainfall occurs over approximately 21 days, demonstrating the city's shift into a humid and lush summer landscape. The trend shows a steady rise in precipitation from the earlier months of the year, culminating in this month of abundant rain, which is essential for the region's agricultural needs. Following July's already impressive total of 312 mm (12.3 in), August intensifies the wet spell, contributing to Chengdu's reputation as one of China's rainiest cities. As summer begins to wane, the heavy downpours play a crucial role in sustaining the vibrant greenery that characterizes the area, setting the stage for a dynamic transition into autumn.
In August, Chengdu experiences a notable increase in humidity, reaching 92%, consistent with the high levels seen in the surrounding months. This trend of elevated humidity persists throughout late summer into early autumn, where both September and October maintain the same humidity level. Interestingly, while winter months like January and December showcase a slight dip in humidity to 90%, the overall pattern indicates that Chengdu endures a relatively humid climate year-round, with summer humidity peaking during August. The humidity levels reveal a comfortable yet moist atmosphere, ideal for the lush greenery that defines this vibrant city.
In August, Chengdu continues to experience intense sunlight, manifesting in a UV Index of 10, which falls into the very high exposure category. This signifies a slight decrease from the extreme conditions of June and July, yet caution remains essential as the recommended burn time is still only 15 minutes. Trends throughout the summer show a peak in UV intensity, with levels reaching 12 in May, then stabilizing slightly for August before potentially escalating again in September. With consistent exposure levels during this season, it's crucial to stay informed and take protective measures against the sun's harmful rays. For more details, check the Chengdu UV Index.
UV Risk Categories
August in Chengdu, China, is a sun-drenched delight, boasting an impressive 290 hours of sunshine. This peak in daylight follows a steadily upward trajectory from the cool days of January, which starts at a modest 188 hours, slowly climbing to fulfill the summer’s promise. Each month brings more light, with the summer months of July and August basking in a glorious glow, highlighting a contrast to the cooler, overcast days of late autumn and winter. As September approaches, the sunshine dwindles to 214 hours, signaling the tapering off of summer warmth. This trend reflects a vibrant seasonal cycle, where August not only shines the brightest but also embodies the essence of Chengdu's long summer days.
In Chengdu, China, the chance of encountering sunny weather in August is relatively low, sitting at just 18%. This figure reflects a broader trend of diminishing sunshine as summer progresses, with the likelihood of clear skies notably decreasing from May's 13% and hitting its nadir in August before slightly rebounding in September. The pattern suggests a wet and cloudy climatic season during the peak of summer, characteristic of Chengdu’s humid subtropical climate. As the seasons transition, residents and visitors should be prepared for overcast days, particularly in this time frame, making outdoor activities less predictable.
In Chengdu, China, August continues the trend of longer daylight hours characteristic of summer, providing residents with 13 hours of sunlight. This duration mirrors July's light, reflecting a gradual decrease from June's peak of 14 hours. As the year progresses, daylight begins to shorten, tapering off to 12 hours in September and further diminishing into the autumn months. Overall, August serves as a bridge between the vibrant summer days and the restful approach of fall, allowing ample time for outdoor activities under the warm sun.
In Chengdu, China, the winds of August whisper gently at an average speed of 1.8 m/s (4 mph), aligning with the calm breezes that define much of the summer. Throughout the year, the wind speeds exhibit a subtle decline from January to July, with the summer months featuring notably low gusts. However, a slight increase to 2.0 m/s (4 mph) in September suggests a shift as summer fades into autumn. Interestingly, while the colder months typically bring more variability, overall, wind speeds remain modest, indicating a consistent breeze that dances softly through the vibrant city. As August transitions to the crispness of fall, it provides a serene backdrop, making perfect opportunities for strolls along Chengdu’s lush avenues.
Weather in Chengdu varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Chengdu, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present stark contrasts in weather conditions. In August, average temperatures hover around 27°C (80°F), with highs reaching up to 40°C (104°F), making it a sweltering month filled with humidity at 92%. Rainfall is frequent, with around 409 mm (16.1 in) of precipitation over 21 days. In comparison, January offers a much cooler climate, with average temperatures at 7°C (44°F) and lows dropping to -4°C (25°F). Precipitation is minimal, only about 5 mm (0.2 in) over just one day, and humidity remains high at 90%. For more details, check out Chengdu weather in January.
August and February offer strikingly different weather conditions. In August, temperatures soar, with minimums around 18°C (64°F) and maximums reaching as high as 40°C (104°F), while the average temperature settles at a warm 27°C (80°F). This month is characterized by heavy rainfall, averaging 409 mm (16.1 in) over 21 days, contributing to a high humidity level of 92%. In contrast, February experiences much cooler temperatures, where the minimum drops to -1°C (31°F) and the maximum reaches only 24°C (76°F), with an average of 9°C (48°F). The precipitation is significantly lower, totaling only 10 mm (0.4 in) over just 2 days, while humidity remains at 92%. For more detailed information, check out Chengdu weather in February.
August and March in Chengdu present distinctly different weather experiences. In August, temperatures soar with average highs around 27°C (80°F) and can peak at a scorching 40°C (104°F), accompanied by high humidity levels of 92%. This month also sees considerable rainfall, with 409 mm (16.1 in) of precipitation over 21 days, leading to a muggy atmosphere.
In contrast, March offers a much cooler climate, with average temperatures of 15°C (59°F) and highs reaching up to 30°C (86°F). The precipitation is minimal at just 23 mm (0.9 in) over 6 days, resulting in a drier environment. Humidity remains high at 89%, but the overall feel is much fresher compared to the sweltering heat of August. For more detailed information, you can check Chengdu weather in March.
The weather in August is significantly warmer and more humid compared to April. While August boasts average temperatures of 27°C (80°F) with a maximum reaching as high as 40°C (104°F), April has much cooler temperatures, averaging 19°C (66°F) and peaking at 36°C (98°F). Additionally, August sees much more rainfall, with 409 mm (16.1 in) over 21 days, while April experiences only 58 mm (2.3 in) across 10 days. The humidity level in August is also higher at 92%, compared to April's 85%. For more specific insights into April weather, you can visit Chengdu weather in April.
In August, the weather typically reaches higher temperatures than in May, with averages around 27°C (80°F) and maximums soaring to 40°C (104°F). In contrast, May enjoys more moderate temperatures, with averages of 22°C (73°F) and maximums peaking at 38°C (100°F). While both months experience notable humidity, August is particularly damp with 92% humidity compared to May's 87%. Moreover, August sees significantly more precipitation, accumulating 409 mm (16.1 in) over 21 days, whereas May has a much lighter rainfall of 74 mm (2.9 in) over 11 days. For a thorough comparison of weather conditions in May, you can explore Chengdu weather in May.
In comparison, August is typically hotter and more humid than June, with average temperatures reaching 27°C (80°F) and maximums soaring to 40°C (104°F). The month of August also sees significantly higher precipitation, with 409 mm (16.1 in) falling over 21 days, compared to June's 89 mm (3.5 in) over just 9 days. Additionally, humidity levels are higher in August at 92%, while June maintains a slightly lower level at 88%. For more detailed information on June weather, you can check Chengdu weather in June.
In comparing the weather patterns of August and July, both months share similar average temperatures, with August experiencing a minimum of 18°C and a maximum of 40°C, compared to July's minimum of 19°C and maximum of 37°C. However, August is notably wetter, with a significant increase in precipitation at 409 mm over 21 days, compared to July's 312 mm over 22 days. Additionally, humidity levels rise slightly in August to 92%, up from July's 89%. For a more detailed look at July's weather conditions, you can check out Chengdu weather in July.
August and September present a notable shift in weather patterns. August experiences hotter temperatures, with a minimum of 18°C (64°F) and scorching maximums reaching 40°C (104°F), accompanied by significant rainfall totaling 409 mm (16.1 in) over 21 days. In contrast, September sees a decline in temperatures, with a minimum of 14°C (57°F) and a maximum of 35°C (95°F), alongside a much lighter precipitation of 118 mm (4.6 in) over 14 days. Despite both months showcasing high humidity levels at 92%, September offers a more temperate and drier climate. For more detailed information, check out Chengdu weather in September.
August and October present contrasting weather patterns. In August, temperatures soar with a minimum of 18°C (64°F), averaging 27°C (80°F), and peaking at a scorching 40°C (104°F). This month also experiences substantial rainfall, with 409 mm (16.1 in) over 21 days, resulting in high humidity levels of 92%. Conversely, October brings a notable drop in temperatures, ranging from a minimum of 10°C (51°F) to a maximum of 30°C (86°F), with a much cooler average of 17°C (63°F). Precipitation decreases dramatically to 57 mm (2.3 in) over just 10 days while maintaining the same humidity level. For more detailed insights, check out Chengdu weather in October.
When comparing the weather in August and November, there is a stark contrast in temperature and precipitation. August is characterized by much warmer conditions, with minimum temperatures of 18°C (64°F) and maximums soaring to 40°C (104°F), coupled with high humidity at 92%. The month experiences significant rainfall, totaling 409 mm (16.1 in) over 21 days. In contrast, November sees a dramatic drop in temperatures, with a minimum of 3°C (38°F) and a maximum of 24°C (75°F), while average temperatures linger around 13°C (55°F). Rainfall is minimal in November, with only 15 mm (0.6 in) recorded over just 4 days. For more detailed insights on November weather, refer to Chengdu weather in November.
August and December in Chengdu present a striking contrast in weather patterns. In August, temperatures soar with a minimum of 18°C (64°F) and can reach a blistering maximum of 40°C (104°F), while the average temperature hovers around 27°C (80°F). This month is also characterized by high humidity (92%) and significant precipitation, with 409 mm (16.1 in) of rain experienced over 21 days. In stark contrast, December sees much cooler temperatures, dropping to a minimum of -2°C (29°F) and averaging around 7°C (46°F), with a maximum of only 17°C (63°F). Precipitation is minimal during this month, with only 11 mm (0.4 in) over just 3 days, and humidity remains relatively high at 90%. For more detailed insights into the December climate, visit Chengdu weather in December.
In August, Chengdu experiences a striking shift in weather dynamics compared to other months. With a blend of sweltering temperatures and high humidity, the warmth can become quite oppressive as the mercury often peaks at a scorching 40°C. The city also faces significant rainfall, with nearly three-quarters of the month seeing precipitation on average, contributing to the lush landscape. This humidity, averaging a notable 92%, further intensifies the summer heat, making it feel more like a tropical climate than a typical metropole. For those curious about the broader trends in weather patterns throughout the year, exploring the details on Chengdu Climate can offer valuable insights.