August Weather in Changsha, China

Last updated: August 21, 2025

In Changsha, China, August brings a sizzling atmosphere, with maximum temperatures soaring up to 39°C (102°F) and an average warmth settling at a comfortable 28°C (83°F). Nighttime offers a brief respite, cooling down to a minimum of 18°C (65°F). This month is also characterized by substantial rainfall, accumulating to 196 mm (7.7 in) over approximately 16 days, contributing to a high humidity level of 87%. Visitors to Changsha during this time can expect a blend of heat and moisture, making it essential to stay hydrated and prepare for sudden showers while enjoying the vibrant summer cityscape.

August Temperature in Changsha

In Changsha, China, August brings a sultry embrace, with minimum temperatures around 18°C (65°F) and average highs soaring to 39°C (102°F), making it one of the hottest months of the year. The heat is palpable, as daily temperatures hover around a warm 28°C (83°F), providing a stark contrast to the chilly depths of January. As summer peaks, the city experiences a noticeable trend of rising heat from earlier months, with July already hitting max temperatures at 39°C (103°F). This oppressive warmth invites both locals and tourists to savor evening relief and indulge in the vibrant cultural scene that thrives during the balmy nights. As almost no rainfall typically washes over the city during August, it’s an ideal time for outdoor exploration—just be sure to stay hydrated and seek shade during midday!

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

The chart illustrates August temperature patterns in Changsha, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Changsha, 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).
JanFebMarAprMayJunJulAugSepOctNovDec464958657075828274635547
Data source: Temperature data for Changsha 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 Changsha

In August, Changsha experiences a notable peak in precipitation, with 196 mm (7.7 in) of rain falling over approximately 16 days. This marks a continuation of the rainy season that began in June, as the summer months consistently bring increasing amounts of rainfall. The data reveals a steady rise from 184 mm in July to this August high, illustrating a trend of increasing precipitation as the city transitions toward the late summer. Following this peak, September sees a decline to 165 mm, hinting at the gradual retreat of monsoonal rains. Overall, the pattern underscores Changsha’s humid subtropical climate, characterized by warm and wet summers, making August not only the wettest month but also a vital period for replenishing local water resources.

August Precipitation Trends in Changsha

The chart displays monthly precipitation patterns in Changsha, 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 Changsha, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4848701011391741841961651295954
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Changsha

August in Changsha, China, marks a peak in humidity levels, reaching 87%, making it the most humid month of the year. This increase is part of a noticeable trend where humidity steadily rises over the summer months, starting from a moderate 72% in January to a high of 85% in July. The subsequent rise in August intensifies the feeling of mugginess, setting the stage for the sultry days typical of late summer. Following August, humidity begins to decline slightly in September, yet remains relatively high at 84%, demonstrating the lingering warmth of the season. Overall, the patterns reveal that Changsha's summers are not only hot but also increasingly humid, influencing both the climate and the daily experiences of its residents.

August Average Humidity in Changsha

This chart illustrates the average monthly humidity levels in Changsha, 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 Changsha is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%76%80%77%82%85%85%87%84%81%86%81%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Changsha

In August, Changsha experiences an extreme UV Index of 12, mirroring the intensity seen in July. This significant level of solar radiation means that individuals should exercise caution, as the burn time is a mere 10 minutes. The summer months in Changsha consistently showcase high UV levels, with the index peaking in May and July before declining in September. As temperatures soar and sun exposure increases, it’s critical to prioritize sun safety during this time. For a deeper dive into UV trends throughout the year, explore Changsha UV Index.

Maximum UV Index Levels in Changsha for August

The chart shows the monthly maximum UV Index (UVI) for Changsha 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 Changsha typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec578111211121210965
Data source: Changsha 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 Changsha

In August, Changsha basks in the glow of 309 hours of sunshine, marking it as the sunniest month of the year. This radiant peak follows a steady ascent from January's modest 87 hours of light, showcasing a marked increase as the year progresses. The delightful transition really starts in spring, with sunshine hours jumping significantly from 174 hours in March to 216 in April, and continuing to thrive in the lush warmth of summer. As temperatures rise, so do the rays, culminating in July's 303 hours. By August, the city enjoys its most brilliant display, paving the way for a gradual decline in sunshine as autumn approaches, with September still holding a respectable 230 hours. This sunny trend not only brightens the skies but also invigorates the spirit of Changsha, making it a vibrant destination in the summer months.

Monthly Sunshine Duration in Changsha: August Highlighted

The August sunshine duration represents the total number of hours Changsha 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.
JanFebMarAprMayJunJulAugSepOctNovDec87h149h174h216h255h259h303h309h230h131h147h117h
Data source: Changsha August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Changsha During August

In Changsha, China, the likelihood of sunny weather in August stands at 24%, reflecting a slight dip compared to the sunnier months surrounding it. While July enjoys a 28% chance of sunshine, the transition into August signals a moderate decrease, hinting at the shift towards the late summer period. This trend continues into September, which boasts a notably higher 39% chance of sun, indicating that while August may see some cloud cover, the summer warmth and brightness are still very much present before the arrival of early autumn. Overall, August represents a balanced blend of sunshine and lingering summer warmth, making it a month of transition in Changsha's weather pattern.

Percentage of Sunny Days in August in Changsha

The chart illustrates the percentage of sunny days in Changsha 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 Changsha experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%27%26%12%17%13%28%24%40%16%23%20%
Data source: Changsha August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Changsha in August

In Changsha, China, the month of August enjoys a robust 13 hours of daylight, mirroring the preceding summer months of June and July. This peak in daylight duration reflects a gradual build-up starting from the shorter days of January and February, which offer only 10 and 11 hours, respectively. As spring unfolds into summer, daylight stretches further, reaching its zenith in August before beginning a gentle decline in September. The gradual transition from longer to shorter days not only shapes the rhythm of life in Changsha but also highlights the striking seasonal contrasts characteristic of this vibrant region. Overall, August stands as a testament to the lingering warmth of summer, inviting both residents and visitors to revel in the abundant sunshine.

Average Daylight Hours in Changsha for August

The chart illustrates the variation in daylight duration in Changsha throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 31m11h 9m11h 59m12h 51m13h 34m13h 56m13h 45m13h 7m12h 18m11h 26m10h 42m10h 19m
Data source: Changsha daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Changsha

In August in Changsha, China, the wind remains steady with an average speed of 1.4 m/s (3 mph), mirroring the conditions of previous summer months. This consistency reflects a pattern where wind speeds maintain a gentle, almost soothing vibe across the summer, with only a slight uptick observed in September, when the speed increases to 1.7 m/s (4 mph). As the year progresses towards autumn, the winds begin to taper off, with a slow decline evident by November and December. Overall, the gentle breezes of August offer a welcome respite in the humid heat, inviting residents and visitors alike to enjoy the outdoors while anticipating the shift towards cooler, crisper autumn days.

Average August Wind Speed in Changsha

The chart displays monthly wind speed patterns in Changsha, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.31.51.51.41.41.41.41.4 m/s1.71.51.31.2
Data source: Changsha August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Changsha Compares to Other Months

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

August and January present stark contrasts in weather conditions. August boasts balmy temperatures, with minimums around 18°C (65°F) and highs soaring up to 39°C (102°F), making it quite hot and humid, with an average humidity of 87%. It also brings significant rainfall, totaling 196 mm (7.7 in) over 16 days. In contrast, January is characterized by much cooler temperatures, where the mercury dips to a minimum of -2°C (29°F) and rarely exceeds 16°C (61°F). Precipitation in January is minimal, averaging only 48 mm (1.9 in) over 11 days, and the humidity sits lower at 72%. For a closer look at January weather specifics, check Changsha weather in January.

August and February exhibit stark contrasts in weather patterns. In August, temperatures soar with a minimum of 18°C (65°F) and an average of 28°C (83°F), often reaching a sweltering maximum of 39°C (102°F). This month is characterized by high humidity at 87% and significant rainfall, accumulating 196 mm (7.7 in) over approximately 16 days. Conversely, February presents a much cooler climate, with temperatures dropping to a minimum of 0°C (33°F) and averaging 9°C (49°F), peaking at a maximum of 26°C (78°F). Precipitation is notably lower in February, with only 48 mm (1.9 in) recorded over 12 days and a humidity level of 76%. For a deeper look at February's climate, check out Changsha weather in February.

August and March present contrasting weather conditions. August typically sees warmer temperatures, ranging from a minimum of 18°C (65°F) to a scorching maximum of 39°C (102°F), with an average of 28°C (83°F). This month is also characterized by high humidity at 87% and significant rainfall, accumulating 196 mm (7.7 inches) over 16 days. In contrast, March offers cooler temperatures, with a minimum of 6°C (42°F) and a maximum of 33°C (92°F), averaging 15°C (59°F). Precipitation in March is considerably less, at 70 mm (2.8 inches) over the same number of days, and humidity is slightly lower at 80%. For more detailed information, you can check Changsha weather in March.

When comparing the weather in August and April, it’s clear that August is significantly warmer and more humid. August boasts a minimum temperature of 18°C and an average of 28°C, reaching highs of up to 39°C, while April starts cooler with a minimum of 8°C and averages only 18°C, peaking at 35°C. Additionally, August experiences much more rainfall, with 196 mm over 16 days compared to April’s 101 mm over 15 days. The humidity in August is also notably higher at 87%, compared to April's 77%. For more detailed information, visit Changsha weather in April.

In August, the weather is significantly warmer compared to May, with average temperatures reaching 28°C (83°F) and peaks soaring up to 39°C (102°F). In contrast, May has a milder average temperature of 21°C (71°F) and a maximum of 36°C (98°F). Both months experience considerable rainfall, but August sees higher precipitation totals at 196 mm (7.7 in) over 16 days, while May receives 139 mm (5.5 in) across 18 days. Humidity levels are also slightly higher in August at 87%, compared to May's 82%. For more detailed information on the weather during May, you can check the following link: Changsha weather in May.

In comparing the weather between June and August, June tends to be slightly cooler with an average temperature of 24°C (76°F) compared to August's warmer average of 28°C (83°F). June sees a minimum temperature of 16°C (61°F) and a maximum of 35°C (96°F), whereas August has a broader range with minimums of 18°C (65°F) and maximums soaring up to 39°C (102°F). Precipitation is fairly similar, with June experiencing 174 mm (6.8 in) over 19 days and August receiving 196 mm (7.7 in) across 16 days. Humidity levels remain comparable as well, with June at 85% and August slightly higher at 87%. For more detailed information, check out Changsha weather in June.

When comparing the weather in July and August, we see that both months experience similar temperature ranges, with averages around 28°C (82°F to 83°F) and maximums peaking at 39°C (102°F to 103°F). However, August tends to be slightly more humid, averaging 87% compared to July's 85%. Precipitation also increases in August, with 196 mm (7.7 in) over 16 days, whereas July has a total of 184 mm (7.2 in) across 18 days. Despite these variations, both months contribute to a warm and often wet summer in the region. For more details, check Changsha weather in July.

August typically experiences warmer temperatures compared to September, with average highs reaching up to 39°C (102°F), while September sees a milder maximum of 36°C (96°F). Both months have high humidity, but August feels more oppressive at 87%, whereas September's humidity is slightly lower at 84%. Precipitation is also noteworthy; August is wetter with 196 mm (7.7 in) over 16 days, while September has 165 mm (6.5 in) spread over 18 days. For more details on September weather patterns, you can check Changsha weather in September.

In August, the weather is characterized by high temperatures, with minimums around 18°C (65°F) and averages soaring to 28°C (83°F), peaking at a sweltering 39°C (102°F). This month also sees substantial rainfall, averaging 196 mm (7.7 in) over 16 days, combined with high humidity levels of 87%. In contrast, October brings a noticeable drop in temperatures, featuring minimums of 10°C (50°F) and an average of 17°C (64°F), with maximums reaching a warm 36°C (97°F). Precipitation decreases to 129 mm (5.1 in), occurring over 20 days, and humidity levels are slightly lower at 81%. For more details on the atmospheric conditions in October, visit Changsha weather in October.

August and November present markedly different weather conditions. August is characterized by high temperatures, with minimums around 18°C (65°F) and maximums soaring as high as 39°C (102°F). The average temperature hovers at a warm 28°C (83°F), accompanied by substantial rainfall of 196 mm (7.7 in) spread over 16 days, resulting in a high humidity level of 87%. In contrast, November brings a significant drop in temperatures, with minimums at 5°C (41°F) and maximums reaching only 25°C (78°F). The average temperature settles at a cooler 13°C (55°F), while precipitation decreases to 59 mm (2.3 in) over 12 days, maintaining a slightly lower humidity at 86%. For more specifics on November weather conditions, you can visit Changsha weather in November.

In August, the weather is characterized by high temperatures, with a minimum of 18°C (65°F) and an average of 28°C (83°F), peaking at a scorching 39°C (102°F). The month also sees significant rainfall, totaling 196 mm (7.7 in) over 16 days, along with high humidity levels at 87%. In contrast, December brings much cooler temperatures, with a minimum of 0°C (32°F) and an average of 9°C (48°F), reaching a maximum of 18°C (64°F). Precipitation decreases considerably to 54 mm (2.1 in) across 13 days, with a slightly lower humidity of 81%. For more detailed information, you can check Changsha weather in December.

Compare Changsha's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Changsha

In August, Changsha experiences its most intense weather of the year, characterized by high temperatures and substantial humidity, often making it feel much hotter than it actually is. With frequent rainfall occurring over half the month, the atmosphere can become quite oppressive, contrasting sharply with the cooler, less humid months surrounding it. While the vibrant summer is in full swing, those venturing out should be prepared for sudden downpours and sweltering conditions. If you're curious about what to expect weather-wise during your visit, explore more at Changsha Climate.