Last updated: August 28, 2025
In August, Ha Long, Vietnam, experiences a tropical climate characterized by high temperatures and considerable rainfall. Daily maximums can reach 36°C (97°F), while the average temperature hovers around a balmy 28°C (83°F). As humidity levels soar to an impressive 89%, visitors can expect a muggy environment, especially during the frequent rain showers. With a staggering 521 mm (20.5 in) of precipitation over 28 days, the month is marked by nearly daily rain, shaping both the landscape and the experience for adventurers exploring this stunning coastal destination.
In August, Ha Long, Vietnam experiences warm and humid weather, with temperatures steadily embracing the summer vibe. The minimum temperature hovers at a balmy 24°C (76°F), while the average climbs to 28°C (83°F), and the maximum can reach a sultry 36°C (97°F). This month marks a peak in the heat, echoing the rising trend established from early summer. The warmth of August is reminiscent of July, with similarly high maximum temperatures, but with slightly cooler minimums, suggesting a comfortable start to evening breezes. As the summer begins to wane, the overall warmth remains inviting for outdoor adventures and exploring the breathtaking landscapes of Ha Long, making it an ideal time for tourists to enjoy this stunning destination.
In August, Ha Long experiences its peak precipitation, with a staggering 521 mm (20.5 in) of rain over 28 days. This deluge marks a significant increase compared to the preceding months, reflecting the culmination of the wet season. Starting from January's modest 28 mm (1.1 in) and gradually escalating, the trend shows a steady rise through the year, particularly in the summer months. Notably, the increase from July's 287 mm (11.3 in) is remarkable, highlighting August as a pivotal month for rainfall in the region. As the clouds gather, locals and visitors alike prepare for the frequent showers, which nourish the lush landscapes that Ha Long is famous for.
In August, the humidity in Ha Long, Vietnam, averages a substantial 89%, highlighting a peak in moisture levels that has been steadily rising throughout the summer months. Following a gradual increase from 66% in January, the humidity escalates noticeably by mid-year, hitting 90% in July before slightly subsiding in August. This trend reflects the tropical climate of the region, where the high humidity is often accompanied by the warmth of summer, creating a rich, humid environment. As the season transitions into September, humidity begins to decrease, but the lingering summer atmosphere remains palpable. Thus, August stands as a defining moment in Ha Long's weather pattern, showcasing the epitome of the region's tropical characteristics.
In August, Ha Long experiences an extreme UV Index of 13, which continues a trend seen throughout the summer months. This level of ultraviolet radiation means that even limited exposure can lead to skin damage, with a burn time of just 10 minutes. Consistent with the values recorded since March, protective measures are essential during this period, as high temperatures combine with the sun's intensity to create conditions that can be hazardous, making it crucial for visitors and locals alike to stay sun-safe. With a similar reading expected in September, this summer's UV trends underscore the importance of vigilance against sun exposure. For detailed monthly insights, visit Ha Long UV Index to stay informed on safety measures.
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August in Ha Long, Vietnam, welcomes an impressive 266 hours of sunshine, reflecting a vibrant continuation of the summer glow that began in May. Following a peak in sunshine hours during the early months of summer, the trend slightly dips in August but remains substantial compared to the start of the year. This month serves as a bridge between the sun-soaked days of summer and the lush, pleasant climate of autumn, providing visitors with plenty of opportunities to bask in the warm glow before the shift toward cooler weather in September. As the year progresses, the number of sunshine hours generally remains high, especially from April to September, suggesting that Ha Long is truly a gem for sun-seekers during these months.
In Ha Long, Vietnam, August stands out as a month of higher humidity and lower chances of sunshine, with only a 12% likelihood of clear skies. This trend of diminishing sunlight begins in the summer months, as both July and June experience similarly low probabilities of sunny weather. In contrast, months like January and February offer much brighter prospects, with chances hovering around the 43% to 51% range. As the year progresses towards autumn, the likelihood of sunshine gradually improves again, peaking in November at 46%. Thus, while August may not be the best time for sun-seekers in Ha Long, the subsequent months provide glimmers of hope for clearer days ahead.
In Ha Long, Vietnam, August boasts approximately 12 hours of daylight, a continuation of the slightly diminished brightness experienced since the heights of summer. As the year progresses from the long, sunlit days of May to July, where daylight peaks at 13 hours, August signals a gentle transition towards shorter days. Following the vibrant summer months, this consistent daylight duration reflects the stability of tropical weather patterns, with the days starting to shorten as autumn approaches. The rhythm of daylight in Ha Long forms a beautiful backdrop to the region's stunning natural landscapes, inviting visitors to bask in the warm glow of summer's end while enjoying the serene ambiance of this coastal gem.
In Ha Long, Vietnam, the August winds gentle sway at an average speed of 2.7 m/s (6 mph), mirroring July's breezy embrace. This month marks a transition as the winds begin their subtle descent from the warmer summer months, reflecting a consistent pattern that signals the change of seasons. As summer fades, the slight dip in wind speed hints at the approaching autumn, with September following closely at an even softer 2.2 m/s (5 mph). Interestingly, while August maintains a calm atmosphere, the overall trend indicates a gradual increase in windspeed as the year progresses into October, culminating at 4.0 m/s (9 mph). This ebb and flow in wind patterns not only shape the climatic conditions but also enhance the serene beauty of Ha Long's enchanting landscapes.
Weather in Ha Long varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Ha Long, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present a stark contrast in weather conditions. In August, temperatures soar with a minimum of 24°C (76°F) and an average of 28°C (83°F), peaking at 36°C (97°F). This month is characterized by high humidity at 89% and significant rainfall, accumulating 521 mm (20.5 in) over 28 days. In contrast, January is much cooler, featuring a minimum temperature of 8°C (46°F), an average of 18°C (64°F), and a maximum of 26°C (80°F). The precipitation is minimal during this month, amounting to only 28 mm (1.1 in) over 5 days, with a lower humidity level of 66%. For a detailed look at January weather specifically in Ha Long, you can visit Ha Long weather in January.
August and February present starkly contrasting weather patterns. In August, temperatures soar with a minimum of 24°C (76°F) and can reach up to 36°C (97°F), accompanied by high humidity levels of 89%. The month also sees significant rainfall, averaging 521 mm (20.5 in) over 28 days, making it a particularly damp season. In contrast, February enjoys milder temperatures with a minimum of 7°C (45°F) and a maximum of 27°C (80°F), along with much lower precipitation of only 36 mm (1.4 in) over 7 days. The humidity in February is also more comfortable at 71%. For more detailed weather information, check out Ha Long weather in February.
August and March present strikingly different weather patterns. In August, temperatures range from a minimum of 24°C (76°F) to a maximum of 36°C (97°F), with an average of 28°C (83°F). The humidity is notably high at 89%, contributing to a sweltering atmosphere, and the month experiences significant rainfall, totaling 521 mm (20.5 in) over 28 days. In contrast, March is much cooler, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 31°C (88°F) and an average of 21°C (71°F). The humidity is also lower at 69%, and precipitation is minimal, at just 52 mm (2.0 in) over 15 days. For more details about the weather in March specifically, you can visit Ha Long weather in March.
In comparing the weather between April and August, it's clear that August is significantly warmer and more humid. August features a minimum temperature of 24°C (76°F) and an average of 28°C (83°F), peaking at a scorching 36°C (97°F). In contrast, April starts cooler with a minimum of 14°C (58°F) and averages 24°C (75°F), reaching a maximum of 33°C (91°F). Additionally, August experiences much higher precipitation, totaling 521 mm (20.5 in) over 28 days, compared to April's 91 mm (3.6 in) over 15 days, making August not only wetter but also more oppressive. This dramatic difference in climate can greatly influence outdoor activities and travel plans. For more detailed insights, you can check Ha Long weather in April.
When comparing the weather in August and May, several notable differences emerge. August typically sees a higher average temperature of 28°C (83°F) compared to May's 27°C (81°F), although both months can reach a maximum of 36°C (98°F). One significant distinction is the humidity; August has a much higher humidity level of 89%, making it feel more uncomfortable than May's 73%. Additionally, August experiences considerably more rainfall, with 521 mm (20.5 in) over 28 days, while May sees just 184 mm (7.2 in) across 19 days. This makes May generally a drier and more pleasant month for outdoor activities. For more details on the weather in Ha Long during May, check out Ha Long weather in May.
In comparing the weather patterns of June and August, we observe that June tends to be slightly hotter, with average temperatures reaching up to 30°C (86°F) and maximums hitting 38°C (100°F). In contrast, August offers a more moderate average temperature of 28°C (83°F) with a maximum of 36°C (97°F). However, August is characterized by significantly higher precipitation, with 521 mm (20.5 in) spread over 28 days, compared to June's 240 mm (9.4 in) over 20 days. Additionally, humidity levels are higher in August at 89%, compared to June’s 81%. For a detailed overview of Ha Long weather patterns in June, you can refer to this link: Ha Long weather in June.
When comparing the weather in August to July, August generally experiences temperatures that are slightly cooler on average, with a minimum of 24°C (76°F) compared to July's 25°C (77°F). Both months have a maximum temperature of 36°C (97°F in August and 98°F in July), reflecting similar peaks of heat. However, August is marked by significantly higher precipitation, totaling 521 mm (20.5 in) over 28 days, in contrast to July's 287 mm (11.3 in) over 24 days. Humidity levels are also quite similar, with August at 89% and July at 90%. For a detailed look at July's weather, you can visit Ha Long weather in July.
The weather in August is characterized by higher temperatures and significant rainfall, with a minimum of 24°C (76°F) and a maximum reaching up to 36°C (97°F). This month experiences an average temperature of 28°C (83°F) and sees a substantial 521 mm (20.5 in) of precipitation spread over 28 days, resulting in high humidity levels of 89%.
In contrast, September brings slightly cooler conditions, with minimum temperatures of 22°C (72°F), a consistent average of 28°C (83°F), and a maximum of 35°C (95°F). Rainfall decreases considerably to 256 mm (10.1 in) over 23 days, accompanied by lower humidity at 82%. For more detailed information, you can check out Ha Long weather in September.
August and October present contrasting weather patterns. In August, temperatures soar with a minimum of 24°C (76°F) and an average high of 36°C (97°F), accompanied by high humidity at 89%. This month also sees significant rainfall, totaling 521 mm (20.5 in) over 28 days, resulting in a muggy atmosphere. In contrast, October offers a more moderate climate, with minimum temperatures dropping to 17°C (63°F) and an average of 25°C (77°F), while high temperatures reach up to 34°C (94°F). Precipitation is notably less in October, measuring 204 mm (8.0 in) over just 16 days, and humidity decreases to 77%. For more specific details on October weather, you can visit Ha Long weather in October.
August and November present contrasting weather conditions. In August, temperatures are significantly higher, with minimums reaching 24°C (76°F) and maximums soaring to 36°C (97°F), contributing to an average of 28°C (83°F). Additionally, August sees high humidity at 89% and substantial rainfall, totaling 521 mm (20.5 in) over 28 days. In contrast, November offers a much cooler climate, with average temperatures dropping to 22°C (73°F) and maximums of 30°C (86°F). The humidity decreases to 72%, and precipitation significantly declines to just 43 mm (1.7 in) over 9 days. For more detailed insights on weather in November, you can visit Ha Long weather in November.
The weather in August is characterized by heat and humidity, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 36°C (97°F). The month is also quite wet, receiving 521 mm (20.5 in) of rainfall over 28 days, resulting in a high humidity level of 89%. In contrast, December brings a cooler climate with temperatures dropping significantly, ranging from a minimum of 8°C (46°F) to a maximum of 28°C (82°F). The amount of precipitation is much lower in December, totaling just 31 mm (1.2 in) and occurring over only 6 days, with a humidity level of 71%. For more detailed information, check out Ha Long weather in December.
In August, Ha Long's weather is notably marked by high humidity and consistent precipitation, making it one of the wettest months of the year. With temperatures averaging a warm 28°C, the heat can feel quite intense, especially with maximums reaching up to 36°C. Unlike the drier months of summer, August sees rain nearly every day, adding to the lush green landscapes that characterize this coastal paradise. If you're planning a visit during this time, be prepared for the tropical climate and embrace the beauty that comes with it. For more details on what to expect, check out Ha Long Climate.