Swimming in Vietnam in march 2025 Sea temperature by city in march
Do you want to go to the beach in Vietnam in march 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in march in Vietnam by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Vietnam in march 2025
Here, find the average sea temperature in Vietnam in march in several coastal cities.
North Vietnam
69°F
min: 65°F / max: 72°F
Do Son Beach (Vạn Hương)
69°F
min: 65°F / max: 72°F
Cat Ba island
68°F
min: 64°F / max: 72°F
Vietnam Central Coast
74°F
min: 70°F / max: 79°F
78°F
min: 73°F / max: 83°F
74°F
min: 70°F / max: 79°F
74°F
min: 70°F / max: 78°F
79°F
min: 75°F / max: 82°F
Bai Lang (Cham islands)
74°F
min: 70°F / max: 79°F
South Vietnam
84°F
min: 82°F / max: 86°F
Con Dao island
81°F
min: 78°F / max: 83°F
Long Hai Beach
79°F
min: 77°F / max: 83°F
Vũng Tàu
79°F
min: 77°F / max: 83°F
Can Tho
84°F
min: 82°F / max: 86°F
Rach Gia
82°F
min: 80°F / max: 84°F
Where should you go swimming in Vietnam in the month of march?
Swimming in Vietnam in march is ideal (in the best case scenario)
In march in Vietnam swimming conditions vary by city. Details below:
In march in Phu Quoc island (Koh Trol), Con Dao island, Long Hai Beach, Vũng Tàu, Can Tho, Rach Gia, Thanh pho Bac Lieu and Tra Vinh, swimming conditions are perfect! With water reaching a maximum of 86°F and an average of 84°F, going in the water (and staying there!) feels great.
As for Hoi An, Nha Trang, Da Nang, Huế, Phan Thiet, Bai Lang (Cham islands), Bãi Xép Beach (An Chấn), Co Thach Beach (Bình Thạnh), Dốc Lết Beach (Ninh Hòa), Ky Co Beach (Nhơn Lý), Mũi Né, Phan Rang Beach, Thuan An Beach, Phu Vang, Qui Nhon, Tam Ky and Tuy Hoa, swimming is pleasant in march. The sea water is 74°F on average (min: 70°F/max: 79°F) so you can easily spend time in the water.
Swimming in march in Halong Bay, Do Son Beach (Vạn Hương) and Cat Ba island is possible but the sea is generally cool. So though the sea temperature may sometimes reach 72°F, it can also go as low as 65°F. Note that the average is 69°F.
Where to go swimming in Vietnam in march: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in march
Halong Bay
| March | |||
| Average sea temperature | 69°F | ||
| Minimum sea temperature | 65°F | ||
| Maximum sea temperature | 72°F | ||
| Average outside temperature | 72°F | ||
| Maximum outside temperature | 76°F | ||
| Minimum outside temperature | 68°F | ||
| Precipitation | 3in | ||
| Number of days of precipitation | 3 jour(s) (11%) | ||
| Cloud cover | 67% | ||
| Our opinion | cool swimming |
More information on swimming in Halong Bay in march
Hoi An
| March | |||
| Average sea temperature | 74°F | ||
| Minimum sea temperature | 70°F | ||
| Maximum sea temperature | 79°F | ||
| Average outside temperature | 77°F | ||
| Maximum outside temperature | 83°F | ||
| Minimum outside temperature | 74°F | ||
| Precipitation | 6.3in | ||
| Number of days of precipitation | 9 jour(s) (29%) | ||
| Cloud cover | 46% | ||
| Our opinion | pleasant swimming |
More information on swimming in Hoi An in march
Nha Trang
| March | |||
| Average sea temperature | 78°F | ||
| Minimum sea temperature | 73°F | ||
| Maximum sea temperature | 83°F | ||
| Average outside temperature | 79°F | ||
| Maximum outside temperature | 85°F | ||
| Minimum outside temperature | 76°F | ||
| Precipitation | 3.1in | ||
| Number of days of precipitation | 4 jour(s) (12%) | ||
| Cloud cover | 28% | ||
| Our opinion | pleasant swimming |
More information on swimming in Nha Trang in march
Phu Quoc island (Koh Trol)
| March | |||
| Average sea temperature | 84°F | ||
| Minimum sea temperature | 82°F | ||
| Maximum sea temperature | 86°F | ||
| Average outside temperature | 85°F | ||
| Maximum outside temperature | 86°F | ||
| Minimum outside temperature | 83°F | ||
| Precipitation | 5.2in | ||
| Number of days of precipitation | 7 jour(s) (23%) | ||
| Cloud cover | 30% | ||
| Our opinion | ideal swimming |
More information on swimming in Phu Quoc island (Koh Trol) in march
Da Nang
| March | |||
| Average sea temperature | 74°F | ||
| Minimum sea temperature | 70°F | ||
| Maximum sea temperature | 79°F | ||
| Average outside temperature | 77°F | ||
| Maximum outside temperature | 83°F | ||
| Minimum outside temperature | 74°F | ||
| Precipitation | 6.3in | ||
| Number of days of precipitation | 9 jour(s) (29%) | ||
| Cloud cover | 46% | ||
| Our opinion | pleasant swimming |
More information on swimming in Da Nang in march
List of coastal cities in Vietnam
| Halong Bay in march | cool swimming |
| Hoi An in march | pleasant swimming |
| Nha Trang in march | pleasant swimming |
| Phu Quoc island (Koh Trol) in march | ideal swimming |
| Da Nang in march | pleasant swimming |
| Huế in march | pleasant swimming |
| Phan Thiet in march | pleasant swimming |
| Bai Lang (Cham islands) in march | pleasant swimming |
| Bãi Xép Beach (An Chấn) in march | pleasant swimming |
| Co Thach Beach (Bình Thạnh) in march | pleasant swimming |
| Con Dao island in march | ideal swimming |
| Do Son Beach (Vạn Hương) in march | cool swimming |
| Dốc Lết Beach (Ninh Hòa) in march | pleasant swimming |
| Cat Ba island in march | cool swimming |
| Ky Co Beach (Nhơn Lý) in march | pleasant swimming |
| Long Hai Beach in march | ideal swimming |
| Mũi Né in march | pleasant swimming |
| Phan Rang Beach in march | pleasant swimming |
| Thuan An Beach in march | pleasant swimming |
| Vũng Tàu in march | ideal swimming |
| Can Tho in march | ideal swimming |
| Phu Vang in march | pleasant swimming |
| Qui Nhon in march | pleasant swimming |
| Rach Gia in march | ideal swimming |
| Tam Ky in march | pleasant swimming |
| Thanh pho Bac Lieu in march | ideal swimming |
| Tra Vinh in march | ideal swimming |
| Tuy Hoa in march | pleasant swimming |