Water temperature of the Gulf of Thailand in april Where to swim in the Gulf of Thailand in april 2025?

Several countries border the seaside of the Gulf of Thailand, including: Cambodia, Koh Samui, Thailand and Vietnam. We measure the water temperature daily in these countries and archive it in order to calculate monthly averages, like those of the month of april.

The seasonal average for the water temperature in the month of april is between 85°F and 87°F. The lowest sea temperature measured this month is 82°F and the highest is 89°F.

The sea temperature map of the Gulf of Thailand in april

The map below presents a monthly average of the water temperature of the Gulf of Thailand for the month of april 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 april.