Vietnam Weather in August

In August, Vietnam experiences high temperatures and substantial rainfall; however, the conditions have been somewhat tolerable.

What’s the Temperature Like in Vietnam in August?

Most cities in Vietnam remain scorching in the first half of August, but the temperature will drop slightly in the second half, providing some relief from the continuous heat.

For the first half of August, most regions experience high temperatures. For example, in cities like Hanoi, the lowest temperature hovers between 25 and 28 degrees Celsius (77 to 82 degrees Fahrenheit), and the highest temperature remains stable at 34 to 38℃ (93 to 100℉). During extreme periods, the record-breaking heat even reached 40℃ (104℉). Coupled with the high humidity brought by the southwest monsoon, as soon as you step out, you will be instantly enveloped by a heat wave, resulting in a sensation of oppressive discomfort that may impair ease of breathing.

However, in the second half of August, the temperatures in the great mass of areas drop. For instance, still in Hanoi, the lowest temperature ranges from 22 to 26℃ (72 to 79℉) and the highest rarely exceeds 34℃ (93℉). Although the heat remains relatively intense at noon, the early morning and evening have a hint of coolness, and oppressive feeling of sweltering heat throughout the day that makes people reluctant to go out gradually fades away.

How Much Precipitation Does Vietnam Receive in August?

Average precipitation: 230mm from 17 rainy days

In August, the overall rainfall in Vietnam is high. Hanoi serves as a representative example, where August precipitation can reach up to 318 mm, nearly the annual peak, with rainfall occurring in approximately 17 days of the month. The majority of rainfalls are short-duration, intense showers accompanied by thunder and lightning. One moment the sun shines intensely, and the next, a torrential downpour descends, catching visitors unprepared. Fortunately, the rainfall abates as suddenly as it begins; take a brief wait at a roadside shop, you can continue with your itinerary soon after.

In addition, due to the influence of typhoon weather, Vietnam may also experience prolonged heavy rainfall in August, which can seriously affect travel and transportation. For instance, in August 2025, Typhoon “Kajiki” brought 150 to 200mm of heavy rain to many areas of Hanoi in just one night, with the rain almost non-stop, causing severe road flooding. Some districts were accessible only by boat. Therefore, it is strongly recommended that tourists pay close attention to weather forecasts and avoid visiting during the periods affected by typhoons.

However, there is no need to be dispirited: in some areas, precipitation is scarce and sunny weather prevails. For instance, in Da Nang, the number of rainy days in August usually does not exceed 10, with a monthly rainfall of only 50 to 60 mm. You can fully enjoy the My Khe Beach under the sun.

Averages for Vietnam Weather in August

High Temperature

33°C (91.4°F)

Low Temperature

25°C (77°F)

Rainfall

230 mm (9 in)

Sunrise

05:30 ~ 05:40

Sunset

18:13 ~ 18:35

Jan.Feb.Mar.Apr.May.Jun.Jul.Aug.Sep.Oct.Nov.Dec.

The times for sunrise and sunset are based on Hanoi.