August Weather in Changsha, China

Last updated: August 21, 2025

In August, the weather in Changsha, China is characterized by intense heat and humidity. With maximum temperatures soaring up to 40°C (104°F) and an average of 29°C (85°F), visitors should be prepared for the sweltering conditions. Nighttime offers a slight reprieve, as temperatures dip to a minimum of 22°C (72°F). However, the month is also marked by significant precipitation, with 121 mm (4.8 in) of rain falling over 16 days, contributing to the high humidity levels of 84%. Therefore, anyone planning to explore Changsha in August should dress accordingly and be ready for both the sun and the occasional shower.

August Temperature in Changsha

In August, Changsha basks in the peak of summer, with temperatures soaring to impressive heights. The days are warm and humid, with an average temperature of 29°C (85°F) and maximums reaching up to 40°C (104°F), making it the hottest month of the year. The minimum temperature rarely drops below 22°C (72°F), ensuring that even the nights remain balmy. This vibrant heat not only underscores the essence of summer but also signals a gradual transition toward cooler months ahead. As the city buzzes with energy under the humid skies, it's a perfect time for locals and visitors to indulge in late-night strolls and refreshing local delicacies, all while soaking up the lively atmosphere that accompanies August's warmth.

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).
JanFebMarAprMayJunJulAugSepOctNovDec515362687681858481716252
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 noticeable dip in precipitation compared to the preceding months, with 121 mm (4.8 in) of rainfall over approximately 16 days. This month marks a step back from the downpours of June and July, where rainfall peaked at 267 mm (10.5 in) and 78 mm (3.1 in) respectively. Interestingly, while August's totals are lower, they still contribute to the overall wet summer, continuing the trend of substantial rainfall seen throughout the spring and early summer months. As the city transitions to September, expectations for precipitation decrease further, suggesting a gradual shift toward drier conditions in the latter part of the year.

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.
JanFebMarAprMayJunJulAugSepOctNovDec48901571712072677812182405934
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Changsha

In August, the humidity in Changsha, China, typically hovers around a substantial 84%, marking a slight drop from the peak 87% experienced in July. This month continues the trend of high humidity that begins in late spring, reaching its zenith during the sweltering summer months. As the city transitions from early summer to late summer, the humidity levels start to stabilize, offering a glimpse of relief before the drier months of autumn. Notably, following August, humidity levels plummet to 61% in September, showcasing the dramatic shift that occurs as the season changes and the oppressive heat gradually gives way to cooler, more comfortable conditions.

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.
JanFebMarAprMayJunJulAugSepOctNovDec66%70%77%76%85%80%87%84%61%62%67%74%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Changsha

In August, Changsha typically experiences its peak UV Index, maintaining a high level of intensity at 13—classified as extreme. This means that sun exposure can lead to skin damage in just 10 minutes, making it essential for residents and visitors alike to take precautions against harmful rays. The trend shows a consistent escalation from January to August, where UV levels rise from 7 to 13, highlighting the increasing need for sun safety as summer progresses. As September approaches, the UV Index slightly declines to 11, yet remains extreme, reminding everyone to stay vigilant in protecting their skin. For more detailed information on the UV Index trends throughout the year, visit 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.
JanFebMarAprMayJunJulAugSepOctNovDec79111113121313111086
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

August in Changsha, China, shines brightly with 311 hours of sunshine, making it a highlight of the summer months. Following July's peak of 313 hours, the sun continues to grace the city, encouraging outdoor activities and vibrant summer festivals. The trend shows a clear seasonal progression, with sunshine hours steadily increasing from a humble 187 hours in January to a summer high, before tapering off in the cooler months. This sunny stretch is complemented by May's impressive 284 hours, indicating that spring transitions smoothly into the warmth of summer. As autumn approaches with September's 280 hours, the sunlight remains generous before gradually declining, creating a beautiful tapestry of light that Changsha enjoys throughout the year.

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.
JanFebMarAprMayJunJulAugSepOctNovDec187h214h204h226h284h245h313h311h280h229h223h219h
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 experiences notable fluctuations throughout the year. August, with a 21% chance of sun, stands out as one of the less favorable months for sunshine, particularly when compared to the earlier months of January and February, which boast probabilities of 67% and 54% respectively. As spring gives way to summer, the sunshine dips dramatically, hitting a low in June at only 14%. Although the chances see a slight rebound in July to 32%, August retains a somewhat gloomy outlook. However, the pattern brightens again in September, where sunny days become significantly more prevalent with a 62% likelihood. This trend highlights the seasonal shift in Changsha's weather, making late summer and early fall the prime time to enjoy more sunny days.

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.
JanFebMarAprMayJunJulAugSepOctNovDec67%54%36%26%17%14%32%21%62%33%44%48%
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 daylight duration follows a rhythmic pattern throughout the year, peaking in the warmer months. Starting from a modest 10 hours in January, the days gradually lengthen, reaching their zenith with 13 hours of sunlight from May to July. As August arrives, the daylight slightly tapers to 12 hours, signaling the transition towards fall. This trend continues into September, maintaining the same daylight length before gradually decreasing again in October to 11 hours. The arc from winter’s brevity to summer’s abundance beautifully underscores the balance of light and life in this vibrant city, as the days grow shorter with the onset of the cooler months.

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 43m11h 17m12h12h 45m13h 22m13h 41m13h 31m12h 59m12h 16m11h 32m10h 53m10h 33m
Data source: Changsha daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Changsha

In Changsha, China, the average wind speed tends to fluctuate throughout the year, creating a rhythmic dance of breezes. As summer reaches its zenith in August, the wind whispers gently at 1.8 m/s (4 mph), a slight dip from the more robust breezes of June and July, which both enjoy a lively pace of 2.1 m/s (5 mph). This trend indicates a gradual slowdown as the sweltering season approaches its end, paving the way for the cooler months. Interestingly, October sees a resurgence with wind speeds increasing to 2.4 m/s (5 mph), suggesting a refreshing transition into autumn. Overall, the data highlights a dynamic interplay between the seasons, where each month breathes its unique character into the ambiance of Changsha.

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.
JanFebMarAprMayJunJulAugSepOctNovDec2.11.82.11.72.12.22.11.8 m/s1.52.42.02.0
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 strikingly different weather conditions. August experiences much higher temperatures, with a minimum of 22°C (72°F) and daily averages reaching 29°C (85°F), peaking at a scorching 40°C (104°F). The month is also characterized by high humidity at 84% and substantial precipitation, totaling 121 mm (4.8 in) over 16 days. In contrast, January is much cooler, with temperatures ranging from a minimum of -3°C (26°F) to a pleasant average of 10°C (51°F), and maximums reaching 25°C (78°F). Precipitation during this month is significantly lower at 48 mm (1.9 in) and occurs over just 6 days, with a reduced humidity level of 66%. For more detailed information on January weather specifics, you can visit Changsha weather in January.

August and February present strikingly different weather patterns. In August, temperatures soar with a minimum of 22°C (72°F) and an average high reaching 40°C (104°F), accompanied by high humidity at 84% and significant rainfall, totaling 121 mm (4.8 in) across 16 days. In contrast, February offers a much cooler climate, featuring temperatures ranging from a chilly minimum of -3°C (26°F) to a mild maximum of 28°C (83°F), with an average of 12°C (53°F). The precipitation in February, while still noticeable at 90 mm (3.6 in), occurs over fewer days—just 9. For a closer look at the weather specifics during this time, visit Changsha weather in February.

In August, the weather is characterized by high temperatures, with averages around 29°C (85°F) and a scorching maximum of 40°C (104°F), coupled with high humidity levels at 84%. Precipitation is significant, with 121 mm (4.8 in) falling over 16 days, making it a rather humid month. In contrast, March presents a much cooler climate, starting with minimum temperatures of 4°C (39°F) and reaching an average of 17°C (62°F), with a maximum of 31°C (88°F). This month also experiences more rainfall, totaling 157 mm (6.2 in) over 17 days, although the humidity is slightly lower at 77%. For a more detailed look at March weather, you can check out Changsha weather in March.

When comparing the weather in August to April, there are notable contrasts in temperature and precipitation. August boasts higher temperatures, with minimums around 22°C (72°F) and maximums soaring up to 40°C (104°F), resulting in an average of 29°C (85°F). In contrast, April features much cooler conditions, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 32°C (91°F) and an average of 20°C (68°F). Interestingly, while August receives about 121 mm (4.8 in) of precipitation over 16 days, April experiences even more rainfall, totaling 171 mm (6.7 in) over the same number of days. Furthermore, the humidity in August is notably higher at 84%, compared to 76% in April. For more detailed information on April's weather, you can visit Changsha weather in April.

In August, the weather is significantly warmer, with average temperatures reaching around 29°C (85°F) and maximums peaking at 40°C (104°F). In contrast, May offers a milder climate, with average temperatures of 24°C (76°F) and a maximum of 36°C (97°F). Despite August’s warmth, it experiences slightly less precipitation at 121 mm (4.8 in) over 16 days, compared to May's heavier rainfall of 207 mm (8.2 in) across 17 days. Interestingly, both months display high humidity, hovering around 84% in August and 85% in May. For a detailed look at May's weather, you can visit Changsha weather in May.

Comparing the weather in August and June reveals some distinct differences. August typically features higher temperatures, with a minimum of 22°C (72°F) and an average of 29°C (85°F), reaching a maximum of 40°C (104°F). In contrast, June offers slightly cooler temperatures, with a minimum of 18°C (65°F) and an average of 27°C (81°F), peaking at 36°C (96°F). While August sees less precipitation (121 mm or 4.8 in over 16 days), June is notably wetter, accumulating 267 mm (10.5 in) over 18 days. Humidity levels are relatively high in both months, at 84% in August and 80% in June. For more detailed information, you can check out Changsha weather in June.

In comparing the weather between July and August, both months share similar average temperatures, with August averaging 29°C (85°F) and July also at 29°C (85°F). However, August experiences slightly higher extremes, with a maximum temperature reaching 40°C (104°F) compared to July's maximum of 39°C (103°F). Precipitation levels significantly increase in August, totaling 121 mm (4.8 in) over 16 days, compared to July's 78 mm (3.1 in) over just 11 days. Additionally, August's humidity is marginally lower at 84%, while July maintains a higher humidity level of 87%. For more detailed insights on July weather, you can visit Changsha weather in July.

August weather in Changsha is characterized by high temperatures, averaging around 29°C (85°F) with a maximum reaching up to 40°C (104°F). The month experiences significant rainfall, totaling 121 mm (4.8 in) over 16 days, coupled with high humidity levels of 84%. In contrast, September sees a noticeable drop in both temperature and humidity. The average temperature lowers to 27°C (81°F), with a maximum of 39°C (103°F) and a minimum of 17°C (62°F). Additionally, precipitation decreases to 82 mm (3.2 in) over 12 days, and humidity drops to a more comfortable 61%. For more detailed insights, check Changsha weather in September.

August in Changsha is characterized by high temperatures and significant humidity, with minimums around 22°C (72°F) and maximums soaring up to 40°C (104°F). This month also sees considerable rainfall, averaging 121 mm (4.8 in) across 16 days, making it quite damp and muggy. In contrast, October brings a noticeable shift in weather patterns, as temperatures drop to a minimum of 10°C (50°F) and an average of 22°C (71°F), with maximums reaching 37°C (98°F). Rainfall is much lighter in October, totaling around 40 mm (1.6 in) over just 8 days, and the humidity decreases to a more comfortable 62%. For more detailed insights into October's climate, check out Changsha weather in October.

In August, the weather is characterized by high temperatures, with a minimum of 22°C (72°F) and an average of 29°C (85°F), reaching up to a scorching maximum of 40°C (104°F). This month also sees significant precipitation, with 121 mm (4.8 in) spread across 16 days and humidity at a tropical 84%. In contrast, November experiences a much cooler climate, with temperatures ranging from a minimum of 4°C (39°F) to an average of 17°C (62°F) and a maximum of 32°C (89°F). Precipitation in November is reduced to 59 mm (2.3 in) over just 7 days, and humidity drops to a more comfortable 67%. For a detailed look at November weather, you can visit Changsha weather in November.

August and December present strikingly different weather patterns. In August, temperatures soar with a minimum of 22°C (72°F) and can reach as high as 40°C (104°F), accompanied by significant humidity at 84% and an average rainfall of 121 mm (4.8 in) over 16 days. In contrast, December brings a much cooler climate, with temperatures ranging from a chilly 0°C (32°F) at night to a comfortable maximum of 27°C (81°F) during the day. Additionally, precipitation drops significantly to just 34 mm (1.3 in) over 6 days, and humidity decreases to 74%. For more details about how December weather unfolds, check out Changsha weather in December.

Compare Changsha's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Changsha

August in Changsha is characterized by its sweltering heat and high humidity, making it one of the most intense months of the year. With average temperatures that soar and frequent rainfall, the weather can feel quite oppressive compared to the more temperate months that precede it. The city experiences a significant number of rainy days, which can provide brief relief from the heat but also adds to the overall mugginess. If you're planning a visit during this time, it's essential to stay hydrated and prepare for unpredictable downpours. For more detailed insights, explore the full overview at Changsha Climate.