Vietnam in August: Weather and Event Guide

What weather to expect in August, what to do, what's on in Vietnam in August?

Sapa Vietnam in August (Photo: Shutterstock)

Weather Overview

August remains part of the summer monsoon season in Vietnam, characterized by considerable rainfall across various regions. Nonetheless, travelers can still discover plenty of reasons to visit Vietnam in August, as each region boasts its own distinctive weather patterns.

Temperature & humidity

The tropical climate in Vietnam is especially noticeable during the summer months in the Northern region. August marks the final month of summer in the North, featuring an average temperature around 29°C. Expect temperatures to fluctuate between 26°C and 36°C. Although it may not be the peak heat of the year, August can experience storms and heavy rains that may disrupt cruises in Halong Bay or hiking adventures in mountainous areas due to increased soil wetness.

In contrast, the Central region experiences the highest average temperature in August at approximately 31°C. This month typically marks the end of the dry season in this region, with cooler temperatures in the highlands, where averages dip below 30°C and the rainy season begins earlier.

August also represents the peak of the rainy season in the Southern region, bringing relief from heat as temperatures average around 27°C. Rainfall is usually brief, making it likely for skies to clear quickly after a downpour.

Humidity levels are among the highest in Vietnam during August, with averages ranging from 70% to over 80%.

RegionsTemperatureHumidityRainfallsRain Days
North26°C / 36°C76%200mm10 days
Central34°C / 25°C80.3%110mm6 days
South32°C / 23°C80.0%100mm7 days

Events in August

August in Hoi An, Vietnam (Credit: Shutterstock)

Wandering Souls Day: This is one of the most revered festivals, occurring on the 15th day of the seventh month in the Lunar Calendar (which corresponds to late August in the Gregorian calendar). It is believed that spirits return home on this day, and some restless spirits, lacking relatives, may roam the earth and bring misfortune. Consequently, it is common for Vietnamese families to prepare food offerings and incense in front of their homes to appease the wandering souls and invoke good luck.

Vu Lan Festival: Coinciding with Wandering Souls Day, Vu Lan Festival offers a different significance. Originally a Buddhist observance to honor mothers, it has evolved into a broader celebration of respect for both living parents and ancestors. Attendees often visit pagodas and wear a rose on their clothing as a gesture of love for their parents.

What to expect

  • With heightened rainfall and humidity, expect an increased presence of mosquitoes in August compared to the drier months. Bringing insect repellent is advisable, especially when venturing into mountainous or forested areas.
  • August sees a surge in travel demand, especially at beach destinations, as families embark on last-minute getaways before school resumes in early September. It is essential to book accommodations and transportation well in advance and to avoid planning trips on weekends if possible.
  • Keep a close eye on the weather forecasts, particularly regarding typhoon warnings, if you intend to visit Halong Bay or coastal areas in the Central region.

Best destinations to travel

Phong Nha Ke Bang in August

August offers plenty of sunshine and suitable weather for beach vacations, making Central Vietnam, including cities like Hue, Danang, Hoi An, Quy Nhon, and Nha Trang a prime choice. In contrast, southern beaches such as Phu Quoc may experience less favorable weather conditions.

These coastal gems are celebrated for their stunning sandy beaches, crystal-clear waters, and breathtaking natural landscapes, ensuring a relaxing and enjoyable holiday.

Moreover, exploring caves and grottoes is a must-do activity in August. Phong Nha Ke Bang National Park, known for its extensive network of approximately 300 caves and grottoes, is a premier destination for adventure enthusiasts.

While trekking in the Northwest regions may not be advisable in August, mountainous areas like Sapa, Mai Chau, and Moc Chau offer incredible scenery of verdant rice terraces and a chance to engage with the rich tapestry of diverse ethnic cultures. These locations also provide a refreshing escape from the summer heat and hustle of city life.


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