Vietnam in August: the last dry month in the centre, peak rain in the north
August is the last month when the central coast is dry and the sea calm: about 52 mm and 10 rainy days in Nha Trang, about 141 mm and 12 days in Da Nang — more rain already, with waves building towards the end of the month.
August is the last month when the central coast is dry and the sea calm: about 52 mm and 10 rainy days in Nha Trang, about 141 mm and 12 days in Da Nang — more rain already, with waves building towards the end of the month. The south is at the peak of its rainy season: about 486 mm and 24 rainy days on Phu Quoc, the most of the year. It's also the wettest month in the north: about 309 mm in Hanoi. The sea is 28–30 °C. According to GOV.UK, the tropical storm season runs from May to November.
What is the weather like in Vietnam in August?
| Where | Day / night | Rain | Rainy days | Sea |
|---|---|---|---|---|
| Mui Ne (Phan Thiet station) | 31.5 / 24.7 °C | 166 mm | 19 | 27–29 °C |
| Phu Quoc | 29.6 / 25.2 °C | 486 mm | 24 | 29 °C |
| Nha Trang | 32.6 / 25.5 °C | 52 mm | 10 | 28–29 °C |
| Da Lat | 22.7 / 16.2 °C | 238 mm | 23 | — |
| Da Nang and Hoi An | 33.9 / 25.6 °C | 141 mm | 12 | 30 °C |
| Hanoi | 32.6 / 26.1 °C | 309 mm | 17 | — |
| Ha Long (Bai Chay) | 31.3 / 25.4 °C | about 430 mm | 19 | — |
"Day" is the average daily high and "night" the average nightly low (QCVN 02:2022/BXD). Sea temperature is from climate references; not given for Da Lat, Hanoi or Ha Long. Ho Chi Minh City isn't covered by these averages.
Where to go in Vietnam in August?
For the beach in August — Nha Trang: its calm-sea season lasts until the end of August. Da Nang is still swimmable in August, but waves build towards the end of the month. More — Nha Trang in August and when to go to Vietnam.
FAQ
Where is it dry in Vietnam in August? The central coast — Nha Trang and Da Nang — is driest.
Can you swim in Vietnam in August? Yes, the sea in the south and centre is 27–30 °C. Swim near lifeguards and stay out under a red flag.
What holidays are in August? There are no public holidays. All dates — holidays in Vietnam.
Sources and checks
Weather — long-term averages from the Phan Thiet, Phu Quoc, Nha Trang, Da Lat, Da Nang, Hanoi and Bai Chay stations (QCVN 02:2022/BXD, tables A.3, A.4, A.25, A.28); Ha Long rainfall is rounded because the standard's annual total for Bai Chay doesn't match its monthly figures. Sea temperature — World Sea Temperatures, weather2travel and Climates to Travel, checked 12 November 2026. Storm season — GOV.UK. Sea seasons by city — our month-by-month guides (sources there). Advice is ours.