October weather forecast and climate
Hanoi, Vietnam

The beautiful Tran Quoc Pagoda in Hanoi, Vietnam
The beautiful Tran Quoc Pagoda in Hanoi, Vietnam
October, the same as September, is a moderately hot autumn month in Hanoi, Vietnam, with average temperature fluctuating between 29.6°C (85.3°F) and 22.1°C (71.8°F).

Temperature

In October, the average high-temperature is relatively the same as in September - a moderately hot 29.6°C (85.3°F). The average low-temperature, in Hanoi, Vietnam, is 22.1°C (71.8°F).

Heat index

In October, the average heat index is calculated to a tropical 35°C (95°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, clothing, wind, and pregnancy affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Hanoi, Vietnam, the average relative humidity is 74%.

Rainfall

In Hanoi, in October, it is raining for 14 days, with typically 46mm (1.81") of accumulated precipitation. In Hanoi, during the entire year, the rain falls for 181.2 days and collects up to 595mm (23.43") of precipitation.

Daylight

In October, the average length of the day is 11.7h.

Sunshine

The average sunshine in Hanoi is 6.9h.

UV index

In Hanoi, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 in October interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in October in Hanoi?

In Hanoi, in October, the average high-temperature is 29.6°C (85.3°F), and the average low-temperature is 22.1°C (71.8°F). In October, the average heat index (a.k.a. 'felt air temperature', 'feels like'), that combines both air temperature and relative humidity, is evaluated at 35°C (95°F).

What is the average humidity in October in Hanoi?

In October, the average relative humidity in Hanoi is 74%.

How many days does it rain in October in Hanoi?

In Hanoi, in October, during 14 rainfall days, 46mm (1.81") of precipitation is typically accumulated.

What is the average length of the day in October in Hanoi?

In Hanoi, Vietnam, the average length of the day in October is 11.7h.

How long on average sun shines in October in Hanoi?

In Hanoi, Vietnam, the average sunshine in October is 6.9h.

How high is the UV index in October in Hanoi?

In October, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health threat from the exposure to the Sun's UV radiation.
Average temperature in October - Hanoi, Vietnam
  • Average high temperature in October: 29.6°C

The warmest month (with the highest average high temperature) is June (35.4°C).
The month with the lowest average high temperature is January (20.7°C).

  • Average low temperature in October: 22.1°C

The month with the highest average low temperature is June (26.6°C).
The coldest month (with the lowest average low temperature) is January (14.4°C).

Average pressure in October - Hanoi, Vietnam
  • Average pressure in October: 1013.8mbar

The month with the highest atmospheric pressure is January (1019.2mbar).
The month with the lowest atmospheric pressure is June (1003.1mbar).

Average wind speed in October - Hanoi, Vietnam
  • Average wind speed in October: 7.9km/h

The windiest month (with the highest average wind speed) is March (9.9km/h).
The calmest months (with the lowest average wind speed) are August and September (6.9km/h).

Average humidity in October - Hanoi, Vietnam
  • Average humidity in October: 74%

Months with the highest relative humidity are August and September (80%).
The month with the lowest relative humidity is December (69%).

Average rainfall in October - Hanoi, Vietnam
  • Average rainfall in October: 46mm

The wettest month (with the highest rainfall) is August (135mm).
The driest month (with the least rainfall) is February (7mm).

Average rainfall days in October - Hanoi, Vietnam
  • Average rainfall days in October: 14 days

The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is February (7.8 days).

Average daylight in October / Average sunshine in October - Hanoi, Vietnam
  • Average daylight in October: 11.7h

The month with the longest days is June (Average daylight: 13.4h).
The month with the shortest days is December (Average daylight: 10.9h).

  • Average sunshine in October: 6.9h

The month with the most sunshine is June (Average sunshine: 10.1h).
The month with the least sunshine is January (Average sunshine: 3.7h).

Average sunshine days in October - Hanoi, Vietnam
  • Average sunshine days in October: 14.7 days

The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is July (6.2 days).

Average UV index in October - Hanoi, Vietnam
  • Average UV index in October: 6

Months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).

Average cloud cover in October - Hanoi, Vietnam
  • Average cloud cover in October: 46

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is June (Cloud cover 40).

Average visibility in October - Hanoi, Vietnam
  • Average visibility in October: 9km

Months with the highest visibility are February, March and June (10km).
Months with the lowest visibility are January, April, May, July, August, September, October, November and December (9km).