Sea temperature in Vietnam
Live water temperatures and swimming conditions across 24 beaches on the Vietnam coast.
Best time to swim in Vietnam
The sea in Vietnam peaks in May, when the water averages around 29°C.
The main swimming season runs from January – December, when surface temperatures stay comfortable for extended sessions.
On average, 12 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
The coldest month is typically January at around 26°C, when cold-water swimmers dominate the coast.
Vietnam sea temperature history
Long-term climatology for Vietnam shows an annual mean sea temperature of 28°C, ranging from 26°C in winter to 29°C at the summer peak.
The seasonal swing is roughly 3°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Vietnam, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Values are area averages; individual beaches vary by exposure and depth.
Vietnam sea temperature: frequently asked questions
What is the warmest month to swim in Vietnam?
May is the warmest month in Vietnam, when the sea averages about 29°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Vietnam?
The coldest month in Vietnam is typically January, when the water averages around 26°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Vietnam without a wetsuit?
The main swimming season in Vietnam runs from January – December — about 12 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.
Do I need a wetsuit in Vietnam?
Vietnam stays warm year-round, so most swimmers never need a wetsuit — a rash guard is usually enough for sun and wildlife protection.
What is the average sea temperature in Vietnam?
The long-term annual mean sea temperature in Vietnam is about 28°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Vietnam?
The live reading at the top of this page shows the current sea temperature in Vietnam, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Warmest beaches in Vietnam right now
| Beach | Region | Sea | Swim score |
|---|---|---|---|
| My Khe Beach | Da Nang | — | — |
| Non Nuoc Beach | Da Nang | — | — |
| An Bang Beach | Quang Nam | — | — |
| Nha Trang Beach | Khanh Hoa | — | — |
| Mui Ne Beach | Binh Thuan | — | — |
| Bai Sao | Kien Giang | — | — |
| Long Beach Phu Quoc | Kien Giang | — | — |
| Vung Tau Back Beach | Ba Ria | — | — |
| My Khe Beach | South Central Coast | — | — |
| Bai Sao Beach | Kien Giang | — | — |
| Bai Khem Beach | Kien Giang | — | — |
| My Khe Beach | Da Nang | — | — |
| An Bang Beach | Quang Nam | — | — |
| Nha Trang Beach | Khanh Hoa | — | — |
| Bai Sao | Kien Giang | — | — |
| Long Beach Phu Quoc | Kien Giang | — | — |
| Cua Dai Beach | Quang Nam | — | — |
| Non Nuoc Beach | Da Nang | — | — |
| Mui Ne Beach | Binh Thuan | — | — |
| Phu Quoc Long Beach | Kien Giang | — | — |
| Sao Beach Phu Quoc | Kien Giang | — | — |
| Ong Lang Beach | Kien Giang | — | — |
| Doc Let Beach | Khanh Hoa | — | — |
| Quy Nhon Beach | Binh Dinh | — | — |