Last updated: August 28, 2025
In October, Ha Long, Vietnam experiences a dynamic climate characterized by warm temperatures and significant rainfall. The maximum temperature can reach an inviting 34°C (94°F), while the average settles around 25°C (77°F), providing a generally pleasant atmosphere. However, visitors should prepare for cooler evenings, as the minimum dips to 17°C (63°F). This month sees an average precipitation of 204 mm (8.0 in) over approximately 16 days, contributing to the region's lush landscapes. With humidity levels at 77%, October in Ha Long offers a unique blend of warmth and moisture, making it an ideal time for exploration and experiencing the natural beauty of this UNESCO World Heritage site.
In October, Ha Long, Vietnam, experiences a delightful transition as temperatures begin to cool from the summer heat. The average temperature settles at a comfortable 25°C (77°F), with minimums around 17°C (63°F), making it ideal for outdoor explorations. As the month progresses, daytime highs can reach up to 34°C (94°F), offering warm, sunny days perfect for cruising through its stunning limestone islands. This shift towards cooler weather marks a refreshing change from the sweltering humidity of the preceding months, inviting travelers to enjoy the breathtaking natural beauty of Ha Long Bay in a more pleasant climate. Overall, October represents a sweet spot in Ha Long's climate, balancing warmth with refreshing breezes.
In October, Ha Long experiences a notable shift in precipitation, with a total of 204 mm (8.0 in) of rainfall spread across approximately 16 days. This marks a decrease from the intense August showers, which saw an astonishing 521 mm (20.5 in) over 28 days. However, October's rainfall remains significant, representing one of the wetter months of the year. As the peak of the rainy season begins to wane, the combination of abundant moisture and lush greenery makes for a striking backdrop, making it a captivating time to experience the natural beauty of Ha Long. The transition into a drier November is on the horizon, with rainfall dropping sharply to just 43 mm (1.7 in), signaling the close of the monsoon season.
As October settles in Ha Long, Vietnam, the humidity begins to ease slightly, averaging around 77%. This month marks a transition from the peak humidity experienced in the summer, which reaches a high of 90% in July and 89% in August. Following the wet season, September shows a robust 82%, but by October, the air feels less oppressive while still retaining a significant moisture level. Comparatively, the humidity levels in October are notably higher than the drier months of January through April, which hover in the low to mid-70s. Overall, October's humidity represents a gradual shift as the region gears up for the cooler, drier months ahead, creating a comfortable yet still humid ambiance.
In October, Ha Long experiences a UV Index of 11, reflecting an extreme exposure category that necessitates caution. The burn time dips to just 10 minutes, a trend that has persisted through the peak summer months of June to September, when the index consistently reached 13. Although October marks a slight decrease from the earlier months, it remains essential for visitors and locals alike to seek shade and protect their skin. As the year progresses toward the cooler months, the UV levels will gradually decrease, dropping to 9 in November and 7 in December. For more detailed insights on UV exposure throughout the year, visit Ha Long UV Index.
UV Risk Categories
October in Ha Long, Vietnam, basks in an inviting 259 hours of sunshine, making it a delightful time for visitors seeking warmth and brightness. As the year transitions from the sweltering days of summer, which boast the highest sunshine totals in May and June, October presents a gentle decline yet still offers ample sunlight for exploration. Notably, this month holds its own against September's 286 hours, showcasing a continuation of pleasant weather. With a consistent offering of sunny days, October serves as a perfect canvas for indulging in Ha Long's breathtaking landscapes, where emerald waters meet lush green islands under a golden sky. This vibrant month beautifully exemplifies the region's post-monsoon charm, inviting travelers to embrace the great outdoors.
In Ha Long, Vietnam, October offers a moderate 28% chance of sunny weather, signaling a gradual transition from the rainy season. This percentage, while a bit higher than the summer months of June (14%) and August (12%), still lags behind the sunnier months of January (43%) and December (53%). As the year progresses into late autumn, the trend suggests a shift towards more favorable weather, making November a promising month with a 46% chance of clear skies. While October may present a blend of overcast days and occasional sun, it serves as a bridge to the more pleasant weather that follows, making it an appealing time for travelers seeking to experience the stunning landscapes of Ha Long amidst a backdrop of changing seasons.
In Ha Long, Vietnam, October marks a transition in daylight duration as the vibrant energy of summer begins to wane. With 11 hours of daylight, the month offers a delightful balance between the long sunny days of summer and the cozy shorter days of winter. Following the peak of 13 hours in the heart of summer (June through July), October's daylight gradually recedes, hinting at the approaching winter months. However, the light remains plentiful enough for exploration and relaxation, making it an ideal time to enjoy the stunning natural landscapes and rich cultural heritage that this coastal gem has to offer. As the year progresses, October’s gentle shift serves as a reminder of nature’s cyclic rhythm, inviting visitors to soak in the warm autumn hues.
As October arrives in Ha Long, Vietnam, a refreshing shift in the atmosphere becomes palpable. The average wind speed climbs to 4.0 m/s (9 mph), marking a notable increase from the preceding months. This boost in wind is a delightful contrast to the summer's slight breezes, which hovered around 2.7 m/s (6 mph) in July and August. The onset of fall not only invites cooler temperatures but also a lively energy in the air, perfect for exploring Ha Long's stunning landscapes and iconic limestone karsts. With October's invigorating winds, this enchanting locale offers a refreshing escape that beckons both adventure seekers and tranquil souls alike.
Weather in Ha Long varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Ha Long, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January showcase a stark contrast in weather patterns. October experiences a warmer climate with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 34°C (94°F), along with substantial rainfall of 204 mm (8.0 in) over 16 rainy days and high humidity levels at 77%. In contrast, January brings cooler temperatures, with an average range of 8°C (46°F) to 26°C (80°F), significantly lower precipitation at 28 mm (1.1 in) spread across just 5 days, and reduced humidity at 66%. For more details on January's climate, you can check Ha Long weather in January.
October and February present strikingly different weather patterns. In October, temperatures range from a minimum of 17°C (63°F) to a peak of 34°C (94°F), with an average of 25°C (77°F). This month sees considerable rainfall, totaling 204 mm (8.0 in) over approximately 16 days, and a humidity level of 77%. In contrast, February experiences milder temperatures, with a minimum of 7°C (45°F), an average of 18°C (65°F), and a maximum of 27°C (80°F). Rainfall is significantly lower in February, at 36 mm (1.4 in) over about 7 days, with humidity at a somewhat drier 71%. For a more detailed look at February weather in a specific region, check out Ha Long weather in February.
October and March present contrasting weather patterns. In October, the temperatures range from a minimum of 17°C (63°F) to a maximum of 34°C (94°F), with an average of 25°C (77°F). This month also sees significant rainfall, totaling 204 mm (8.0 in) over 16 days, which contributes to a high humidity level of 77%. In contrast, March offers milder conditions, featuring temperatures that vary from 14°C (57°F) to 31°C (88°F), with an average of 21°C (71°F). Precipitation is notably lower at 52 mm (2.0 in) across 15 days, and humidity levels are more comfortable at 69%. For a detailed look at the weather trends, check out Ha Long weather in March.
When comparing the weather in October and April, October tends to be warmer with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 34°C (94°F), while April features slightly cooler conditions, with temperatures between 14°C (58°F) and 33°C (91°F). October experiences significantly higher precipitation, with around 204 mm (8.0 in) spread over 16 rainy days, compared to April's 91 mm (3.6 in) of rain over 15 days. Additionally, October's humidity averages at 77%, making it feel quite muggy, whereas April's humidity is lower at 64%, creating a more comfortable atmosphere. For more information on the specific conditions, you can check Ha Long weather in April.
In October, the weather features a minimum temperature of 17°C (63°F) and an average of 25°C (77°F), with a maximum reaching up to 34°C (94°F). It is a relatively wet month, with 204 mm (8.0 in) of precipitation spread over 16 days and humidity levels around 77%. In contrast, May offers slightly warmer conditions, as it experiences a minimum of 19°C (66°F) and an average of 27°C (81°F), peaking at 36°C (98°F). The rain totals are a bit lower at 184 mm (7.2 in), although precipitation occurs on 19 days, and humidity is slightly lower at 73%. For more specifics on the climate, you can check out Ha Long weather in May.
October and June present distinct weather patterns, with June generally being hotter and more humid. In October, temperatures range from a mild 17°C (63°F) to a maximum of 34°C (94°F), while June typically features higher temperatures, with a minimum of 23°C (74°F) and reaching up to 38°C (100°F). Both months experience significant precipitation, but October sees about 204 mm (8.0 in) over 16 days, compared to June's higher total of 240 mm (9.4 in) spread across 20 days. Humidity levels are also slightly elevated in June at 81%, compared to October's 77%. For a more detailed look at the weather specifics for this region, check out Ha Long weather in June.
When comparing the weather in October and July, notable differences emerge. October features a range of temperatures with a minimum of 17°C (63°F), averaging around 25°C (77°F), and peaking at 34°C (94°F). This month experiences 204 mm (8.0 in) of precipitation across 16 days, resulting in a humidity level of 77%. In contrast, July is warmer, with minimum temperatures of 25°C (77°F), an average of 29°C (85°F), and highs reaching 36°C (98°F). However, it is also wetter, recording 287 mm (11.3 in) of rain over 24 days, with humidity levels rising to 90%. For more specific insights into July conditions, you can refer to Ha Long weather in July.
October presents a noticeable shift in weather compared to August. While October's temperatures range from a minimum of 17°C (63°F) to a maximum of 34°C (94°F), with an average of 25°C (77°F), August typically has warmer conditions, with a minimum of 24°C (76°F) and a maximum reaching 36°C (97°F), averaging 28°C (83°F). Precipitation also significantly differs; October experiences 204 mm (8.0 in) over 16 days, whereas August sees a much heavier rainfall of 521 mm (20.5 in) across 28 days. Additionally, humidity is slightly lower in October at 77%, compared to August's higher level of 89%. For more details, check Ha Long weather in August.
In comparing the weather of October and September, October tends to be slightly cooler, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 34°C (94°F), compared to September's warmer range of 22°C (72°F) to 35°C (95°F). Additionally, October experiences less precipitation, totaling 204 mm (8.0 in) over 16 days, while September sees more rainfall at 256 mm (10.1 in) across 23 days. Humidity levels also drop slightly from September's 82% to October's 77%. For more detailed insights into September weather, you can visit Ha Long weather in September.
October weather tends to be warmer and more humid compared to November, with minimum temperatures around 17°C (63°F) and maximum temperatures reaching up to 34°C (94°F). In contrast, November sees a drop in temperatures, with a minimum of 12°C (54°F) and a maximum of 30°C (86°F). Additionally, October experiences significantly higher precipitation, with 204 mm (8.0 in) over 16 days, while November has much lighter rainfall totaling 43 mm (1.7 in) over just 9 days. The humidity also decreases slightly in November, making the weather feel a bit more comfortable. For more detailed insights about the weather in November, check out Ha Long weather in November.
October and December present starkly different weather characteristics. In October, temperatures range from a minimum of 17°C (63°F) to a maximum of 34°C (94°F), with an average of 25°C (77°F). This month is marked by significant rainfall, totaling 204 mm (8.0 in) over approximately 16 days, accompanied by high humidity levels at 77%. In contrast, December sees much cooler temperatures, with a minimum of 8°C (46°F) and a maximum of 28°C (82°F), averaging around 18°C (66°F). Precipitation drops dramatically to just 31 mm (1.2 in) across about 6 days, and the humidity decreases to 71%. For more details on the December climate, you can visit Ha Long weather in December.
As October unfolds in Ha Long, the weather offers a delightful shift from the heat of the summer months. With temperatures averaging around 25°C (77°F), this is a more comfortable time for outdoor activities. However, be prepared for frequent rain, as October sees about 16 days of precipitation, contributing to a total of 204 mm (8.0 in) for the month. The humidity also high, hovering around 77%, further emphasizing that this transition period brings a mix of warmth and moisture. For those who enjoy exploring, October's cooler temps and lush landscapes create a stunning backdrop. If you’re curious to learn more about the climate variations throughout the year, check out Ha Long Climate.