canIswim

Sea temperature and swimming season in Vietnam

When the sea is warm enough to swim in 15 coastal cities in Vietnam.

CityWarmestColdestSwimming season
Huế 30.2°C Aug 22.8°C Jan all year
Da Nang 30.2°C Aug 23.7°C Feb all year
Vinh 30.7°C Aug 20.8°C Feb all year
Nha Trang 29.5°C May 24.6°C Jan all year
Qui Nhon 29.7°C Sep 24.5°C Jan all year
Vũng Tàu 30.4°C May 26.5°C Jan all year
Phu Quoc 30.8°C May 28.2°C Jan all year
Thành Phố Bà Rịa 30.4°C May 26.5°C Jan all year
Phan Thiết 30.0°C May 25.5°C Jan all year
Phan Rang-Tháp Chàm 29.4°C May 24.6°C Jan all year
Cẩm Phả 30.7°C Jul 19.1°C Feb all year
La Gi 30.1°C May 25.7°C Feb all year
Tuy Hòa 29.5°C Sep 24.4°C Jan all year
Cam Ranh 29.4°C May 24.7°C Jan all year
Côn Sơn 30.1°C May 25.5°C Jan all year

Season uses 19°C. Why that number, and where the data comes from