canIswim

Sea temperature and swimming season in Malaysia

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

CityWarmestColdestSwimming season
Malacca 30.7°C Jun 28.4°C Feb all year
Kuantan 30.5°C May 27.9°C Jan all year
Kota Kinabalu 30.4°C May 28.0°C Mar all year
Sandakan 30.3°C May 28.8°C Feb all year
Kuala Terengganu 30.6°C May 27.9°C Jan all year
Alor Setar 31.0°C May 28.6°C Jan all year
Miri 30.4°C May 28.3°C Mar all year
Klang 30.4°C May 29.2°C Feb all year
George Town 30.8°C May 29.4°C Jan all year
Bintulu 30.5°C May 28.7°C Feb all year
Labuan 30.5°C May 28.4°C Feb all year
Kangar 31.0°C May 28.6°C Jan all year
Semporna 30.2°C May 28.8°C Feb all year
Nibong Tebal 30.9°C May 29.6°C Dec all year
Kuala Penyu 30.5°C May 28.4°C Feb all year

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