August Weather in Jiangnan, China

Last updated: August 21, 2025

Jiangnan, China, in August experiences a tropical climate characterized by high temperatures and significant rainfall. The maximum temperature often reaches a sweltering 37°C (100°F), while the average hovers around a warm 29°C (84°F), with a minimum of 24°C (76°F). This month sees an impressive precipitation total of 326 mm (12.8 in), spread across approximately 25 rainy days, contributing to an oppressive humidity level of 88%. Visitors should prepare for a sticky, humid atmosphere punctuated by frequent showers, making August both a challenging and uniquely vibrant time to experience Jiangnan.

August Temperature in Jiangnan

In August, Jiangnan, China, experiences a peak in summer warmth, with temperatures showcasing a minimum of 24°C (76°F) and rising to a sizzling maximum of 37°C (100°F). The average temperature remains steady at 29°C (84°F), reflecting the sweltering conditions typical of this season. This month marks a continuation of the upward trend in temperatures observed since late spring, as the region transitions from the cooler averages of January to the more intense heat of late summer. With high humidity often accompanying these warm days, locals and visitors alike seek shade and refreshment amidst the lively summer atmosphere.

August Weather in Jiangnan: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Jiangnan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jiangnan, August typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec616270738084858483767062
Data source: Temperature data for Jiangnan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Jiangnan

In August, Jiangnan experiences its peak precipitation, with a staggering 326 mm (12.8 in) of rain falling over 25 days. This significant amount marks a continual upward trend from the previous months, particularly following June’s high of 315 mm. As summer reaches its zenith, the rainfall intensifies, contributing to the region's lush landscapes. The frequency of rainy days also peaks during this month, indicating a shift towards more prolonged wet conditions. This pattern highlights August as a crucial month for replenishing water sources, even as the region braces for the transition into the drier autumn months ahead.

August Precipitation Trends in Jiangnan

The chart displays monthly precipitation patterns in Jiangnan, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Jiangnan, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec2156821272163152223262331432717
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Jiangnan

In Jiangnan, China, August marks the peak of summer humidity, mirroring July's sweltering conditions with a significant 88% relative humidity. The trend throughout the year reflects a gradual increase in moisture, beginning at 64% in January and ascending steadily, particularly noticeable from May onward when levels reach 79%. This upward trajectory culminates in the summer months, where air thickens and the atmosphere feels particularly heavy. Following August, humidity begins to decrease moderately, dropping to 75% in September and further to 65% by October, ushering in the drier autumn season. Overall, the data highlights how Jiangnan's climate experiences a distinct seasonal shift, with late summer presenting the most humid conditions of the year.

August Average Humidity in Jiangnan

This chart illustrates the average monthly humidity levels in Jiangnan, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Jiangnan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec64%68%73%71%79%77%88%88%75%65%64%69%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Jiangnan

In August, Jiangnan, China, experiences a notable UV Index of 13, categorized as extreme with a burn time of just 10 minutes. This trend of heightened UV exposure continues from July, reflecting a summer peak where the sun’s intensity remains consistently high. As we look back over the months, the UV Index has shown a significant escalation from January's level of 7. The spring months witnessed a rapid ascent, hitting their peak in May at 14, before stabilizing in the summer. With such intense UV conditions persisting into August and September, it's essential to remain vigilant and protect your skin. For more detailed information, visit Jiangnan UV Index.

Maximum UV Index Levels in Jiangnan for August

The chart shows the monthly maximum UV Index (UVI) for Jiangnan in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Jiangnan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710121214131313111097
Data source: Jiangnan August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

August Sunshine in Jiangnan

As August wraps up the summer season in Jiangnan, China, the region enjoys an impressive 276 hours of sunshine, marking a slight decline from the sun-drenched highs of 307 hours in July. The warmth of summer begins to soften, yet August still stands out as a vibrant month, continuing the trend of abundant sunlight that peaks during the mid-year. This rich sunshine, coupled with the lush surroundings, creates an enchanting atmosphere, inviting locals and tourists alike to bask in the beauty of the picturesque landscapes. Transitioning into September, sunshine hours remain favorable at 280, illustrating that while summer wanes, the brilliance of Jiangnan's skies endures, promising a scenic embrace even as autumn approaches.

Monthly Sunshine Duration in Jiangnan: August Highlighted

The August sunshine duration represents the total number of hours Jiangnan experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec202h233h236h236h287h277h307h276h280h271h260h263h
Data source: Jiangnan August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Jiangnan During August

In Jiangnan, China, the likelihood of sunny weather experiences a notable fluctuation throughout the year. While the months of January and November boast a relatively high chance of sun at 56% and 62% respectively, August sees a significant dip, with only a 14% chance of clear skies. This dramatic decrease highlights the transition into the rainy season, where the peak of summer humidity and precipitation overshadows warmth. March, April, and May also struggle with low sunny prospects, hovering around 29%, indicating that while winter and late autumn bring clearer days, summer storms tend to dominate the forecast. As the year progresses, the trend shifts towards sunnier prospects again in the fall, particularly in September, with a 38% chance, reminding us that even in the humid depths of summer, brighter days are just around the corner.

Percentage of Sunny Days in August in Jiangnan

The chart illustrates the percentage of sunny days in Jiangnan throughout the year, with August highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Jiangnan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec56%51%28%30%29%10%29%14%38%33%62%48%
Data source: Jiangnan August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Jiangnan in August

In Jiangnan, China, the rhythm of daylight duration distinctly shifts throughout the year, showcasing a fascinating trend. By August, the days begin to gradually shorten, offering around 12 hours of daylight—a slight decrease from the longer, sun-drenched days of summer. This month caps off the peak sunlight period, which spans from May to July, where residents enjoy a generous 13 hours of daylight. As autumn approaches in September, daylight remains steady at 12 hours, indicating a gentle transition before the days continue to shorten into the cooler months of October and November. Overall, the twilight of August signals the approach of fall, as nature begins to prepare for the quieter, softer light of winter.

Average Daylight Hours in Jiangnan for August

The chart illustrates the variation in daylight duration in Jiangnan throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 54m11h 23m12h 1m12h 40m13h 12m13h 28m13h 20m12h 52m12h 14m11h 36m11h 2m10h 45m
Data source: Jiangnan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Jiangnan

As summer wanes in Jiangnan, China, the August winds gently begin to calm, with average speeds dipping to a mere 1.9 m/s (4 mph). This marks the lowest point in the annual wind pattern, reflecting the tranquil atmosphere typical of late summer. Following a consistent flow through the preceding months, where breezes ranged from 2.2 to 2.8 m/s, August's stillness transitions towards the brisk autumn winds. This soothing lull is short-lived, as September further cools to 1.5 m/s (3 mph), before the winds regain momentum in October, surging to 3.5 m/s (8 mph). Thus, August encapsulates a serene pause in Jiangnan's climatic rhythm, paving the way for the invigorating gusts of fall.

Average August Wind Speed in Jiangnan

The chart displays monthly wind speed patterns in Jiangnan, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.82.22.72.42.62.42.21.9 m/s1.53.52.83.0
Data source: Jiangnan August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Jiangnan Compares to Other Months

Weather in Jiangnan varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Jiangnan, focusing on differences in temperature, rainfall, humidity, and UV levels.

August and January showcase stark contrasts in weather patterns. In August, temperatures range from a minimum of 24°C (76°F) to a scorching maximum of 37°C (100°F), with an average of 29°C (84°F), accompanied by high humidity levels of 88%. This month also experiences significant rainfall, with 326 mm (12.8 in) falling over 25 days. In contrast, January is characterized by much cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 28°C (83°F), averaging 16°C (61°F). The winter month sees considerably less precipitation, totaling 21 mm (0.8 in) over just 3 days, and lower humidity at 64%. For more detailed information, visit Jiangnan weather in January.

August and February showcase a stark contrast in weather conditions. August is characterized by high temperatures, with a minimum of 24°C (76°F) and an average of 29°C (84°F), reaching up to a scorching maximum of 37°C (100°F). It also features significant humidity at 88% and frequent rainfall, averaging 326 mm (12.8 in) over 25 days. In contrast, February experiences much cooler temperatures, with a minimum of 4°C (40°F) and an average of 17°C (62°F), peaking at 29°C (84°F). Precipitation is notably lower, with only 56 mm (2.2 in) over 8 days, and the humidity stands at a more comfortable 68%. For more insights on February weather, you can check Jiangnan weather in February.

When comparing the weather in August and March, we observe significant differences in temperature and precipitation. August typically experiences much warmer conditions with minimum temperatures around 24°C (76°F) and average highs reaching 37°C (100°F), while March is considerably cooler, with minimum temperatures at 9°C (48°F) and average highs of 32°C (90°F). Precipitation is also markedly higher in August, with 326 mm (12.8 in) falling across 25 days, compared to March's 82 mm (3.2 in) over 15 days. Additionally, humidity levels in August are quite high at 88%, whereas March has a more moderate humidity of 73%. For more detailed insights, you can check Jiangnan weather in March.

In August, the weather is characterized by much higher temperatures, with minimums of 24°C (76°F) and maximums reaching up to 37°C (100°F), compared to April's milder temperatures, where the minimum is 11°C (53°F) and the maximum is 33°C (92°F). Additionally, August experiences significantly more rainfall, with a total precipitation of 326 mm (12.8 in) over 25 days, whereas April sees only 127 mm (5.0 in) over 14 days. The humidity is also notably higher in August at 88%, compared to 71% in April, making the summer month feel much more oppressive than the spring. For a detailed overview of April’s weather, you can check Jiangnan weather in April.

August and May present contrasting weather patterns, with August characterized by much higher temperatures and humidity. In August, the minimum temperature is 24°C (76°F), averaging 29°C (84°F) and peaking at 37°C (100°F), while May offers a cooler experience with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 35°C (96°F), averaging 27°C (80°F). August also sees significantly more precipitation, with 326 mm (12.8 in) falling over 25 days, compared to May's 216 mm (8.5 in) over 20 days. The humidity in August is noticeably higher at 88%, compared to May's 79%. For a detailed look at May weather, you can visit Jiangnan weather in May.

When comparing the weather between June and August, both months experience similar average temperatures, hovering around 29°C (84°F). However, August typically records higher maximum temperatures, reaching up to 37°C (100°F) compared to June's peak of 35°C (96°F). In terms of precipitation, August witnesses slightly more rain with 326 mm (12.8 in) over 25 days, while June has 315 mm (12.4 in) over 22 days. Additionally, humidity levels are higher in August at 88%, compared to June's 77%. For more details on June weather, you can check Jiangnan weather in June.

When comparing the weather in August and July, both months display high temperatures, but August has slightly cooler minimum temperatures, averaging 24°C (76°F) compared to July's 25°C (77°F). The average temperature remains consistent at around 29°C (84°F for August and 85°F for July), while the maximum temperature peaks at 37°C (100°F in August and 98°F in July). However, August sees significantly higher precipitation, with 326 mm (12.8 in) over 25 days, compared to July's 222 mm (8.7 in) over 23 days. The humidity level remains constant at 88% for both months, indicating a similarly muggy environment. For more details on July weather specifically, please visit Jiangnan weather in July.

August in Jiangnan is characterized by hotter temperatures and higher humidity, with a minimum of 24°C (76°F), an average of 29°C (84°F), and a maximum of 37°C (100°F). The month sees significant rainfall, accumulating 326 mm (12.8 in) over 25 days, which contributes to the high humidity of 88%. In contrast, September experiences a slight cooling trend, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 35°C (95°F) and an average of 28°C (83°F). Rainfall decreases to 233 mm (9.2 in) across 23 days, and humidity drops to a more comfortable 75%. For a detailed look at the weather specifics in September, you can check out Jiangnan weather in September.

In August, the weather is characterized by high temperatures, with a minimum of 24°C (76°F) and an average of 29°C (84°F), peaking at a scorching 37°C (100°F). This month also sees significant rainfall, with 326 mm (12.8 in) spread over 25 days, resulting in a stifling humidity level of 88%. In contrast, October ushers in a noticeable shift, featuring cooler temperatures that range from a minimum of 15°C (60°F) to an average of 25°C (77°F), with a maximum of 35°C (95°F). The precipitation decreases dramatically to 143 mm (5.6 in) over just 12 days, and humidity drops to a more comfortable 65%. This transition marks a welcome relief from the heat and humidity of August. For more details, you can check Jiangnan weather in October.

August and November present stark contrasts in weather characteristics. August typically experiences high temperatures, with averages around 29°C (84°F) and maximums soaring up to 37°C (100°F). Humidity is significantly high at 88%, contributing to the feeling of mugginess, and the month sees a considerable amount of precipitation, totaling 326 mm (12.8 in) across 25 days. In contrast, November brings cooler temperatures, with averages dropping to 21°C (70°F) and maximums reaching 31°C (88°F). The month is considerably drier, with only 27 mm (1.1 in) of rain over just 5 days, and humidity levels decrease to 64%. For more insights into November weather, visit Jiangnan weather in November.

August and December present stark contrasts in weather conditions. In August, temperatures soar with a minimum of 24°C (76°F) and an average of 29°C (84°F), hitting highs of 37°C (100°F). The month is characterized by high humidity at 88% and significant rainfall, with 326 mm (12.8 in) of precipitation over 25 days. In contrast, December brings a much cooler climate, with a minimum temperature of 7°C (44°F) and an average of 17°C (62°F), peaking at a pleasant 29°C (84°F). The precipitation drops dramatically to just 17 mm (0.7 in) over 3 days, with lower humidity at 69%. For more detailed information on weather specifics in December, check out Jiangnan weather in December.

Compare Jiangnan's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Jiangnan

In August, Jiangnan experiences a sultry embrace, characterized by high temperatures that often peak at a toasty 37°C, making it the warmest month of the year. The humidity hangs heavy in the air at around 88%, adding to the intensity of the heat. Additionally, this month is marked by significant rainfall, contributing to a lush environment but also requiring preparation for wet days, as precipitation is frequent, with rain falling on about 25 days. Compared to other months, August stands out as a time where the combination of heat and moisture creates a tropical ambiance, compelling those in the region to adapt to its vibrant, yet challenging climate. For a deeper understanding of the weather patterns throughout the year, visit Jiangnan Climate.