Hanoi
Vietnam
Long-term weather forecast
Long-term weather forecast

July weather forecast and climate
Hanoi, Vietnam

The beautiful Tran Quoc Pagoda in Hanoi, Vietnam, with a view of more city structures in the far background
The beautiful Tran Quoc Pagoda in Hanoi, Vietnam, with a view of more city structures in the far background
July, like June, is another hot summer month in Hanoi, Vietnam, with average temperature fluctuating between 34°C (93.2°F) and 26.3°C (79.3°F).

Temperature

In July, the average high-temperature is relatively the same as in June - a tropical 34°C (93.2°F). In July, in Hanoi, the average low-temperature is 26.3°C (79.3°F).

Heat index

The average heat index in July is appraised at a burning hot 49.9°C (121.8°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, clothing, pregnancy). 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. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in Hanoi is 76%.

Rainfall

In Hanoi, Vietnam, in July, it is raining for 23.3 days, with typically 92mm (3.62") of accumulated precipitation. Throughout the year, there are 181.2 rainfall days, and 595mm (23.43") of precipitation is accumulated.

Daylight

In July, the average length of the day is 13.3h.

Sunshine

The average sunshine is 9.6h.

UV index

Months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for the average person.
Note: In July, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in July in Hanoi?

In Hanoi, Vietnam, in July, the average high-temperature is 34°C (93.2°F), and the average low-temperature is 26.3°C (79.3°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that factores the actual air temperature with the relative humidity, in July is evaluated at 49.9°C (121.8°F).

What is the average humidity in July in Hanoi?

In July, the average relative humidity is 76%.

How many days does it rain in July in Hanoi?

In Hanoi, Vietnam, in July, it is raining for 23.3 days, with typically 92mm (3.62") of accumulated precipitation.

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

In Hanoi, the average length of the day in July is 13.3h.

How many hours of sunshine does Hanoi have in July?

The average sunshine in July in Hanoi is 9.6h.

When is the highest UV index in Hanoi?

May through September, with an average maximum UV index of 7, are months with the highest UV index in Hanoi, Vietnam.

How high is the UV index in July in Hanoi?

In July, the average daily maximum UV index in Hanoi, Vietnam, is 7. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.
Average temperature in July - Hanoi, Vietnam
  • Average high temperature in July: 34°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 July: 26.3°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 humidity in July - Hanoi, Vietnam
  • Average humidity in July: 76%

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

Average rainfall in July - Hanoi, Vietnam
  • Average rainfall in July: 92mm

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

Average rainfall days in July - Hanoi, Vietnam
  • Average rainfall days in July: 23.3 days

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

Average daylight in July / Average sunshine in July - Hanoi, Vietnam
  • Average daylight in July: 13.3h

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

  • Average sunshine in July: 9.6h

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

Average UV index in July - Hanoi, Vietnam
  • Average UV index in July: 7

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).