Water temperature of the South China Sea in january Where to swim in the South China Sea in january 2025?

Several countries border the seaside of the South China Sea, including: Borneo (Kalimantan), Brunei, Cambodia, China, Hong Kong, Malaysia, Palawan island, Philippines, Singapore and Sumatra. We measure the water temperature daily in these countries and archive it in order to calculate monthly averages, like those of the month of january.

The seasonal average for the water temperature in the month of january is between 60°F and 84°F. The lowest sea temperature measured this month is 57°F and the highest is 86°F.

The sea temperature map of the South China Sea in january

The map below presents a monthly average of the water temperature of the South China Sea for the month of january for several coastal cities. You can zoom and move around on the map. By clicking on the markers, you can see sea temperature details by city in january.