October Weather in Hanoi, Vietnam

Last updated: August 28, 2025

October in Hanoi, Vietnam offers a vibrant blend of weather characteristics. Temperatures can reach a maximum of 34°C (94°F), with an average hovering around 25°C (78°F), while cooler nights drop to a refreshing 17°C (63°F). This month is marked by considerable precipitation, totaling 279 mm (11.0 in) over 16 days, making it one of the wetter months of the year. With an average humidity of 77%, the atmosphere feels lush and tropical. Whether exploring the city's rich history or enjoying its local cuisine, visitors can expect a dynamic and exhilarating climate that embodies the essence of autumn in Hanoi.

October Temperature in Hanoi

In October, Hanoi experiences a delightful transition as temperatures begin to cool, with minimums around 17°C (63°F) and averages reaching 25°C (78°F). This shift marks a pleasant departure from the summer heat, making it an ideal time for exploration. The maximum temperatures hover around 34°C (94°F), still warm but significantly lower than the intense peaks of the preceding months. As autumn settles in, the city's vibrant landscapes become even more inviting, encouraging both locals and tourists alike to enjoy the mild weather and beautiful scenery.

October Weather in Hanoi: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Hanoi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hanoi, October 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).
JanFebMarAprMayJunJulAugSepOctNovDec646672768387868583777265
Data source: Temperature data for Hanoi generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Hanoi

In October, Hanoi experiences a significant shift in weather patterns, marked by 279 mm (11.0 in) of precipitation over 16 days. This month stands out as one of the wetter periods of the year, following a substantial rainfall in September with 222 mm (8.7 in). The increase in rainfall from September to October suggests a transition towards the tail end of the monsoon season, as the city often grapples with a surge in moisture-laden winds. Although the rainfall is noteworthy, it is less intense compared to the peak months of July and August, where downpours can be more prolonged and heavy, resulting in 260 mm (10.2 in) and 378 mm (14.9 in), respectively. The blend of frequent rain and cooler temperatures in October creates a refreshing atmosphere in Hanoi, signaling a shift towards the more temperate months that follow.

October Precipitation Trends in Hanoi

The chart displays monthly precipitation patterns in Hanoi, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Hanoi, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec5841651471881892603782222794841
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

October Humidity in Hanoi

As October unfolds in Hanoi, the city's humidity hovers at a moderate 77%, showcasing a slight decrease from the intense summer months of July and August, which peak at a steamy 90% and 89% respectively. This transition marks a welcome shift after a string of high humidity levels earlier in the year, particularly June's 81% and September's 82%. Following the sweltering summer, October provides a respite with humidity levels more in line with the earlier months, such as April at 64% and January at 66%. Overall, October serves as a bridge between the oppressive heat of summer and the more comfortable conditions of late fall, making it an ideal time to explore the vibrant streets of Hanoi.

October Average Humidity in Hanoi

This chart illustrates the average monthly humidity levels in Hanoi, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Hanoi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec66%71%69%64%73%81%90%89%82%77%72%71%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Hanoi

In October, Hanoi experiences a notable UV Index of 11, placing it in the extreme exposure category, with a burn time of just 10 minutes. This marks a slight decrease from the peak of 13 observed in the summer months, yet the risk remains significant. As the year transitions, October continues to showcase a trend of high UV exposure that began in early spring, urging residents and visitors alike to remain vigilant about sun protection. It’s crucial to take necessary precautions to enjoy the vibrant culture of Hanoi while safeguarding skin health. For detailed UV forecasts, check out Hanoi UV Index.

Maximum UV Index Levels in Hanoi for October

The chart shows the monthly maximum UV Index (UVI) for Hanoi in October, 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 October, the maximum UV index in Hanoi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121213121213131197
Data source: Hanoi October 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.

October Sunshine in Hanoi

October in Hanoi boasts a delightful 235 hours of sunshine, marking a transition from the lush, radiant summer months. As the city shifts from September’s impressive 267 hours, October still offers ample daylight for exploration and enjoyment. The sunshine hours reflect a trend of decreasing daylight as the year progresses, yet the weather remains pleasantly warm, inviting locals and visitors alike to indulge in outdoor activities. This autumnal month captures a serene balance, where the remnants of summer’s exuberance gracefully give way to the cozy charm of impending winter.

Monthly Sunshine Duration in Hanoi: October Highlighted

The October sunshine duration represents the total number of hours Hanoi experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec130h184h153h187h280h275h274h259h267h235h233h213h
Data source: Hanoi October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hanoi During October

As October approaches in Hanoi, Vietnam, the likelihood of sunny weather stands at 24%, reflecting a trend of increasing sunshine compared to the summer months. Though this figure is modest, it marks an improvement from the drearier conditions experienced from June to August, where the chance of sun plummeted to as low as 13%. In contrast to the earlier part of the year, which featured similarly low probabilities in March and April, October hints at a gradual transition towards sunnier days, paving the way for a more pleasant atmosphere as the city moves into the later months. With November and December boasting significantly higher chances of sunshine—36% and 45% respectively—October serves as a bridge, hinting at the warmth and brightness that lie ahead.

Percentage of Sunny Days in October in Hanoi

The chart illustrates the percentage of sunny days in Hanoi throughout the year, with October 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 Hanoi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%31%18%18%31%13%22%13%23%24%36%45%
Data source: Hanoi October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hanoi in October

As October unfolds in Hanoi, the city enjoys a balanced 11 hours of daylight, marking a graceful transition from the vibrant summer months. The trend throughout the year reveals an intriguing rhythm: daylight begins at 10 hours in January, steadily increasing to a peak of 13 hours in the lush months of May through July. As autumn approaches, the daylight gradually tapers off, leading into the cozy embrace of shorter days in November and December. This cyclical pattern not only reflects the changing seasons but also highlights the enchanting nature of Hanoi's climate, inviting residents and visitors alike to savor the golden hues of fall before the days shorten further.

Average Daylight Hours in Hanoi for October

The chart illustrates the variation in daylight duration in Hanoi throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 59m11h 26m12h 1m12h 37m13h 7m13h 22m13h 15m12h 48m12h 14m11h 38m11h 7m10h 52m
Data source: Hanoi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Hanoi

As October graces Hanoi, the city experiences a refreshing shift in the air, with average wind speeds picking up to 2.7 m/s (6 mph). This noticeable increase not only adds a gentle crispness to the atmosphere but also signifies a transition from the sultry heights of summer. Compared to the languid breezes of September, which barely brushed the city at 1.5 m/s (3 mph), October's winds bring a welcome change, invigorating both the landscape and the spirits of its dwellers. In the broader context, the trend showcases a gradual rise in wind speed as the year progresses towards its end, peaking in the fall months. This seasonal shift invites residents and visitors alike to embrace the vibrant energy of Hanoi during this picturesque time of year.

Average October Wind Speed in Hanoi

The chart displays monthly wind speed patterns in Hanoi, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.92.02.62.62.82.22.01.71.52.7 m/s2.21.9
Data source: Hanoi October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Hanoi Compares to Other Months

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

October and January present quite contrasting weather conditions. 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 (78°F). This month experiences significant rainfall, accumulating 279 mm (11.0 in) over approximately 16 days, accompanied by high humidity levels of 77%. Conversely, January is considerably cooler, with temperatures ranging from 8°C (46°F) to 29°C (84°F) and an average of 18°C (65°F). The precipitation is much lighter in January, totaling 58 mm (2.3 in) over about 8 days, and humidity decreases to 66%. For more detailed information, you can check Hanoi weather in January.

October weather in Hanoi is characterized by warmer temperatures, with averages around 25°C (78°F) and maximums reaching up to 34°C (94°F). However, this month also brings significant rainfall, averaging 279 mm (11.0 in) over 16 days, resulting in high humidity levels of 77%. In contrast, February offers a cooler climate, with average temperatures around 19°C (66°F) and a maximum of 31°C (88°F). Precipitation is much lower in February, totaling only 41 mm (1.6 in) across just 7 days, and humidity is slightly reduced at 71%. For a more detailed look at February weather, you can check Hanoi weather in February.

In contrast to October, which experiences warmer temperatures with a minimum of 17°C (63°F) and an average of 25°C (78°F), March tends to be slightly cooler, featuring a minimum of 14°C (57°F) and an average of 22°C (73°F). Both months share similar maximum temperatures, reaching up to 34°C (94°F). However, October is significantly wetter, with 279 mm (11.0 in) of precipitation over 16 days, compared to March's 65 mm (2.5 in) over 14 days. Additionally, October boasts higher humidity at 77%, while March maintains a lower humidity level of 69%. For more detailed insights, visit Hanoi weather in March.

When comparing the weather in October and April, we can see some notable differences. October typically features a minimum temperature of 17°C (63°F) and an average of 25°C (78°F), with highs reaching up to 34°C (94°F). It is also characterized by significant rainfall, with 279 mm (11.0 in) of precipitation spread over 16 days, contributing to the higher humidity level of 77%.

In contrast, April enjoys slightly cooler minimum temperatures at 15°C (59°F) but also has an average of 25°C (77°F) and can reach maximums of 36°C (97°F). The month sees less rainfall, recording 147 mm (5.8 in) over 14 days, which leads to a lower humidity of 64%. For more details, you can check out Hanoi weather in April. Overall, April tends to be drier and hotter, while October is more humid and wetter.

In October, the weather 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). The month also experiences significant rainfall, averaging 279 mm (11.0 in) over about 16 days, and a humidity level of 77%. In contrast, May is hotter, with temperatures starting at a minimum of 19°C (67°F) and peaking at a maximum of 39°C (103°F), while average precipitation is lower at 188 mm (7.4 in) over 17 days and humidity is marginally lower at 73%. For more detailed insights, you can explore Hanoi weather in May.

When comparing the weather in October and June, October experiences slightly cooler temperatures, with average highs around 25°C (78°F) compared to June's hotter highs of 31°C (87°F). October has a minimum temperature of 17°C (63°F), making the evenings more pleasant, whereas June starts at a higher minimum of 23°C (74°F). Precipitation is notably higher in October, with 279 mm (11.0 in) over 16 days, compared to June's 189 mm (7.4 in) over 15 days. Additionally, humidity levels are fairly similar, with October at 77% and June slightly higher at 81%. For more detailed insights, you can check out Hanoi weather in June.

In comparing the weather between October and July, October experiences slightly cooler temperatures, with a minimum of 17°C (63°F) and an average of 25°C (78°F), while July boasts higher temperatures, with a minimum of 25°C (78°F), an average of 30°C (86°F), and maximums reaching up to 39°C (103°F). October also tends to have more precipitation, totaling 279 mm (11.0 inches) over 16 days of rain, compared to July's 260 mm (10.2 inches) across 21 rainy days. Additionally, humidity levels are notably higher in July at 90%, compared to October's 77%, making July feel more sultry and uncomfortable. For more information on Hanoi's weather in July, you can check out Hanoi weather in July.

Comparing the weather in October and August, we see notable differences in temperature and precipitation. October features a milder temperature range, with minimums around 17°C (63°F) and maximums reaching up to 34°C (94°F), averaging 25°C (78°F). In contrast, August tends to be much hotter, with minimum temperatures of 24°C (76°F) and highs soaring to 39°C (102°F), averaging 29°C (85°F). While both months experience significant rainfall, October sees about 279 mm (11.0 in) over 16 days, whereas August has a heavier precipitation of 378 mm (14.9 in) spread out over 22 days. Additionally, humidity levels are slightly higher in August at 89%, compared to October's 77%. For a more detailed look at the conditions during this period, check out Hanoi weather in August.

In September, the weather in Hanoi is characterized by warmer temperatures, with a minimum of 21°C (71°F) and an average of 28°C (83°F), peaking at a maximum of 37°C (99°F). However, this month also experiences significant precipitation, totaling 222 mm (8.7 in) over 21 days, accompanied by a high humidity level of 82%. In contrast, October sees slightly cooler temperatures, with a minimum of 17°C (63°F) and an average of 25°C (78°F), reaching a maximum of 34°C (94°F). The rainfall increases to 279 mm (11.0 in) but occurs over fewer days, with rainfall recorded on 16 days, and humidity remains high at 77%. For a detailed look at September weather patterns, refer to Hanoi weather in September.

October and November present distinct weather characteristics, marking a transition from the more humid conditions of early autumn to a slightly cooler late autumn climate. 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 (78°F). This month experiences considerable rainfall, accumulating 279 mm (11.0 in) over 16 days and maintaining a high humidity level of 77%. Conversely, November sees a dip in temperature, with minimums of 14°C (57°F) and a maximum of 33°C (92°F), averaging 22°C (73°F). Precipitation drops significantly to 48 mm (1.9 in) over just 8 days, and humidity decreases slightly to 72%. This shift indicates a drier and cooler climate in November, making it a more pleasant time for outdoor activities. For further details, refer to Hanoi weather in November.

October and December present quite different weather patterns. 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 (78°F). This month is characterized by significant rainfall, totaling 279 mm (11.0 in) across 16 days, and a humidity level of 77%. In contrast, December experiences cooler temperatures, with a minimum of 8°C (47°F) and an average of 18°C (65°F), peaking at 31°C (87°F). Precipitation sharply decreases to 41 mm (1.6 in) over just 7 days, accompanied by a lower humidity of 71%. For more detailed insights on December weather, check out Hanoi weather in December.

Compare Hanoi's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Hanoi

In October, Hanoi experiences a noticeable transition in weather, setting it apart from the sweltering summer months. With average temperatures hovering around a comfortable 25°C (78°F), this month offers a much-needed reprieve from the heat, giving way to cooler evenings. However, it also marks the beginning of the rainy season, with 16 wet days contributing to a total precipitation of 279 mm (11.0 in). The humidity remains high at 77%, creating a lush, vibrant atmosphere throughout the city. This blend of cool temperatures and increased moisture makes October a unique time to explore Hanoi's charm. For more details about Hanoi's weather patterns, visit Hanoi Climate.