August Weather in Hong Kong, Hong Kong

Last updated: August 21, 2025

Experience the vibrant August weather in Hong Kong, where temperatures soar to a maximum of 34°C (93°F), maintaining an inviting average of 28°C (83°F). With minimum temperatures hovering around 26°C (78°F), the warmth is palpable throughout the city. However, prepare for a moist environment, as humidity levels reach 88% and precipitation is frequent, with 384 mm (15.1 in) of rain recorded over 25 days. Whether you’re exploring the bustling streets or enjoying scenic views, August in Hong Kong is a blend of heat and showers, creating a unique atmosphere that encapsulates the city's vibrant spirit.

August Temperature in Hong Kong

In August, Hong Kong experiences its warmest temperatures, with minimums averaging around 26°C (78°F) and reaching a peak of 34°C (93°F). This month maintains a steady average of 28°C (83°F), making it a prime time for sun-seekers and those enjoying the outdoors. Following the summer heat, you'll notice that August's warmth tracks a gradual rise from the milder temperatures of early months, peaking just before the humidity begins to decrease in September. While sweltering, the tropical climate draws both locals and tourists to embrace the vibrant city life and stunning natural scenery, making it a bustling hub of activity during this time.

August Weather in Hong Kong: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Hong Kong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hong Kong, 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).
JanFebMarAprMayJunJulAugSepOctNovDec636369737983848382787265
Data source: Temperature data for Hong Kong 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 Hong Kong

August stands out as the wettest month in Hong Kong, witnessing a significant precipitation amount of 384 mm (15.1 in) over 25 rainy days. This surge in rainfall is part of a broader trend that sees increasing precipitation as the summer progresses, culminating in August's peak. The month also follows a pattern of rising precipitation from April's 93 mm to May's 171 mm and finally to the sweltering heights of August. This seasonal downpour not only contributes to the lush greenery but also highlights the humid subtropical climate's intensity, setting the stage for the brief yet vibrant transition toward the cooler months ahead.

August Precipitation Trends in Hong Kong

The chart displays monthly precipitation patterns in Hong Kong, 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 Hong Kong, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec215260931713252193842231893631
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Hong Kong

In August, Hong Kong experiences some of its highest humidity levels, reaching a steamy 88%, a continuation of the trend set during the hot summer months. Tied with July for the peak humidity of the year, August's muggy environment envelops the city, making it feel even more intense as temperatures rise. This high humidity marks a notable contrast to the drier months of October and November, when humidity drops to 65% and 64%, respectively. Overall, the summer months witness a consistent climb in moisture levels, with May and June also showcasing humidity above 75%. As the season shifts, a gradual decrease in humidity signals the arrival of more comfortable conditions, providing a much-needed relief after the sultry summer.

August Average Humidity in Hong Kong

This chart illustrates the average monthly humidity levels in Hong Kong, 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 Hong Kong 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 Hong Kong

In August, residents and visitors in Hong Kong can expect a consistent UV Index of 13, categorizing it within the extreme exposure level, with a burn time of just 10 minutes. This sustained intensity mirrors the trends of the preceding months, where the UV readings remained notably high during the summer, peaking in May at 14. As the season transitions into September, the UV Index remains elevated at 12, indicating that outdoor enthusiasts should remain vigilant. These readings highlight the importance of sun protection throughout the summer months; for more detailed information, you can visit Hong Kong UV Index.

Maximum UV Index Levels in Hong Kong for August

The chart shows the monthly maximum UV Index (UVI) for Hong Kong 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 Hong Kong typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710121214131313121197
Data source: Hong Kong 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 Hong Kong

August brings a delightful 280 hours of sunshine to Hong Kong, showcasing a balance of brightness in the summer months. Following the sunniest peak in July with 323 hours, the August sun remains generous, contributing to the vibrant energy of the city. As summer transitions into autumn, sunlight remains plentiful, with September not far behind at 288 hours. On average, the months leading up to August demonstrate a steady increase, with May reaching 301 hours, making it an excellent prelude to the sunny days of July and August. This trend highlights Hong Kong's reputation for enjoyable weather, inviting both locals and visitors to embrace the outdoor lifestyle as the summer sun gently begins to set.

Monthly Sunshine Duration in Hong Kong: August Highlighted

The August sunshine duration represents the total number of hours Hong Kong 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.
JanFebMarAprMayJunJulAugSepOctNovDec216h251h274h263h301h274h323h280h288h280h262h264h
Data source: Hong Kong August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hong Kong During August

As summer draws to a close in Hong Kong, the likelihood of sunny weather significantly diminishes in August, dropping to a mere 15% chance of sun. This trend follows the overall pattern of a wetter, more humid climate typical of the region during the peak summer months, particularly in June and July, which experience even lower chances of sunshine at 12% and 31% respectively. The month of August marks a stark contrast to the sunnier spells found earlier in the year, with January and February boasting impressive probabilities of sunshine at 61% and 60%. Following August, the likelihood of sunny days gradually improves in September, climbing to 45%. In summary, while August may promise the vibrancy of summer, sunshine is not as plentiful, leading residents and visitors alike to brace for a mix of clouds and occasional rain.

Percentage of Sunny Days in August in Hong Kong

The chart illustrates the percentage of sunny days in Hong Kong 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 Hong Kong experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec61%60%43%42%30%12%31%15%45%36%62%50%
Data source: Hong Kong August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hong Kong in August

In August, Hong Kong enjoys a generous 12 hours of daylight, continuing the warm summer trend established in previous months. This duration, consistent with both April and September, reflects the slight tapering of daylight that begins after the peak summer months of May through July, which each bask in 13 hours of natural light. As the year progresses, daylight gradually diminishes, transitioning from the abundant hours of summer back to the shorter days of winter, mirroring a rhythmic cycle that characterizes the city's vibrant seasonal changes. This month’s balanced daylight invites evening adventures and outdoor activities before the daylight hours begin to wane, offering the last glorious glimpses of summer in this bustling metropolis.

Average Daylight Hours in Hong Kong for August

The chart illustrates the variation in daylight duration in Hong Kong throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 55m11h 23m12h 1m12h 39m13h 11m13h 27m13h 19m12h 51m12h 14m11h 36m11h 3m10h 46m
Data source: Hong Kong daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Hong Kong

In August, Hong Kong experiences a gentle dip in wind speed, with an average of 3.4 m/s (8 mph), making it one of the calmer months of the year. This trend of milder breezes continues from May through September, where wind speeds linger around the 3 to 4 m/s range. As summer winds down, the city transitions into a more vibrant autumn, with a notable jump in wind speeds by October reaching 6.4 m/s (14 mph), signaling a shift in the season. This increase is complemented by the refreshing crispness that autumn brings, which contrasts sharply with the more subdued airflow of August, creating a dynamic climate that shapes daily life in this bustling metropolis.

Average August Wind Speed in Hong Kong

The chart displays monthly wind speed patterns in Hong Kong, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.14.44.74.63.74.23.83.4 m/s3.26.44.95.6
Data source: Hong Kong August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Hong Kong Compares to Other Months

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

August and January present contrasting weather patterns, highlighting the diverse climate shifts. In August, temperatures soar with a minimum of 26°C (78°F) and an average of 28°C (83°F), reaching maximums of 34°C (93°F). The month is characterized by high humidity at 88% and substantial rainfall, averaging 384 mm (15.1 in) over 25 days. In contrast, January boasts milder temperatures, with a minimum of 8°C (46°F) and an average of 17°C (63°F), peaking at 24°C (75°F). The winter month experiences significantly less precipitation, totaling just 21 mm (0.8 in) over 4 days, and enjoys lower humidity at 64%. For those interested in the specifics of January weather conditions, further details can be found here: Hong Kong weather in January.

August and February present sharply contrasting weather conditions. In August, temperatures soar with a minimum of 26°C (78°F) and can peak at 34°C (93°F), accompanied by high humidity levels of 88%. This month also sees significant rainfall, with about 384 mm (15.1 in) distributed over 25 days. In stark contrast, February offers a much cooler climate, with minimum temperatures dropping to 7°C (45°F) and an average of 17°C (64°F), making it feel much more temperate. Precipitation in February is significantly lower, totaling only 52 mm (2.0 in) over 7 days, and humidity is also reduced to 68%. For more detailed information on February weather, you can check Hong Kong weather in February.

August and March present contrasting weather patterns. In August, temperatures are significantly warmer, ranging from a minimum of 26°C (78°F) and averaging around 28°C (83°F), peaking at 34°C (93°F). This month is also marked by high humidity at 88% and considerable rainfall, with 384 mm (15.1 in) over approximately 25 days. In contrast, March offers a much cooler climate, with temperatures ranging from a minimum of 12°C (54°F) to a comfortable average of 21°C (70°F) and a maximum of 27°C (80°F). Precipitation is much lower in March, totaling 60 mm (2.4 in) over about 10 days, and humidity is reduced to 73%. For more details on the weather in March, you can visit Hong Kong weather in March.

When comparing the weather in August and April, it is clear that August is significantly warmer and more humid. In August, temperatures range from a minimum of 26°C (78°F) to a maximum of 34°C (93°F), with an average of 28°C (83°F). The month also experiences high humidity at 88% and substantial rainfall, averaging 384 mm (15.1 inches) over 25 days. In contrast, April is much cooler, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 29°C (85°F) and an average of 23°C (73°F). Precipitation is considerably lower in April, totaling 93 mm (3.7 inches) over just 12 days, and the humidity is also lower at 71%. For those interested in a detailed look at the temperatures and weather conditions, you can check out Hong Kong weather in April.

August and May in Hong Kong showcase distinct weather patterns. August is typically warmer, with average temperatures ranging from a minimum of 26°C (78°F) to a maximum of 34°C (93°F), while May has cooler temperatures, with a range from 18°C (64°F) to 33°C (92°F). Precipitation is significantly higher in August, averaging 384 mm (15.1 in) over 25 days, compared to May’s 171 mm (6.7 in) spread across 18 days. Additionally, humidity levels peak in August at 88%, making it feel more muggy than May, which has a relatively lower humidity level of 79%. For more specific details on May weather, visit Hong Kong weather in May.

When comparing the weather of August and June, both months showcase warm temperatures, but August tends to be slightly hotter. In August, the minimum temperature is around 26°C (78°F), while June has a slightly lower minimum of 24°C (76°F). The average temperatures are similar, with both months averaging 28°C (83°F). However, August can reach a maximum of 34°C (93°F), compared to June's 33°C (91°F).

Precipitation levels also differ, with August experiencing more rain, totaling 384 mm (15.1 in) over 25 days, compared to June's 325 mm (12.8 in) over 24 days. Furthermore, humidity is higher in August at 88%, while June sees a more manageable 77%. For a detailed look at the weather in June, you can check Hong Kong weather in June.

When comparing the weather in August to July, we see that August tends to be slightly warmer, with average temperatures reaching 28°C (83°F) compared to July's 29°C (84°F). However, August experiences more significant rainfall, with an impressive 384 mm (15.1 in) of precipitation over 25 days, whereas July only sees 219 mm (8.6 in) across 24 days. Both months share high humidity levels of around 88%, creating consistently warm and muggy conditions. For a closer look at July's weather specifics, you can visit Hong Kong weather in July.

August and September present notable differences in weather patterns. In August, temperatures are slightly higher, with minimums around 26°C (78°F) and maximums reaching 34°C (93°F), while September sees a marginal decrease with minimum temperatures at 24°C (76°F) and maximums at 32°C (91°F). Precipitation also drops significantly from August's 384 mm (15.1 in) over 25 days to September's 223 mm (8.8 in) across 22 days, suggesting a transition towards drier conditions. Additionally, the average humidity decreases from 88% in August to 75% in September, contributing to more comfortable weather as the month progresses. For more detailed insights, check out Hong Kong weather in September.

In August, the weather is notably warmer and more humid, with average temperatures peaking at 34°C (93°F) and a high humidity level of 88%. This month experiences significant rainfall, with about 384 mm (15.1 in) of precipitation over 25 days, creating a rather damp atmosphere. In contrast, October brings much cooler and drier conditions, with average temperatures around 26°C (78°F) and a maximum of 32°C (91°F). Precipitation drops to 189 mm (7.4 in) spread over just 10 days, and humidity decreases to a more comfortable 65%. For a detailed look at October weather patterns, you can check out Hong Kong weather in October.

In August, the weather is characterized by high humidity and significant rainfall, with average temperatures ranging from a minimum of 26°C (78°F) to a maximum of 34°C (93°F). This month typically sees about 384 mm (15.1 in) of precipitation spread over 25 days, creating a muggy atmosphere with humidity levels hovering around 88%. In contrast, November enjoys a marked decrease in temperature and humidity, featuring averages between 16°C (60°F) and 28°C (82°F). With only 36 mm (1.4 in) of rain over just four days, the air is much drier, and the overall climate is more comfortable, making it an ideal time to explore outdoor activities. For more insights into the weather during this month, check out Hong Kong weather in November.

August and December present starkly contrasting weather conditions. In August, temperatures soar with a minimum of 26°C (78°F) and an average of 28°C (83°F), reaching highs of up to 34°C (93°F). The month is also marked by high humidity at 88% and significant rainfall, averaging 384 mm (15.1 in) over 25 days. In contrast, December offers much cooler temperatures, with a minimum of 10°C (49°F) and a mild average of 18°C (65°F), peaking at 26°C (78°F). Precipitation is minimal in December, with just 31 mm (1.2 in) falling over only 4 days, and humidity levels drop to 69%. For more detailed information on December's climate, check out Hong Kong weather in December.

Compare Hong Kong's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Hong Kong

As August settles over Hong Kong, the city experiences its hottest and most humid days of the year, characterized by high temperatures and consistent rainfall. Unlike the drier months that precede it, August brings frequent downpours, with over three weeks of precipitation to cool the air. The combination of sweltering heat and oppressive humidity creates a unique tropical ambiance, making it essential for visitors and residents alike to stay hydrated and seek respite from the sweltering sun. Embrace the vibrant summer atmosphere while being mindful of the weather's whims this August. For more insights, explore the complete Hong Kong Climate.