
Current water temperature on the Sint Maarten coast. Forecast of changes in water temperature. Historical data.
Water temperature in Sint Maarten today
Most popular locations in Sint Maarten over the past week
Conditions of sea water on beaches in Sint Maarten
Now in all beaches in Sint Maarten, the water is very warm and comfortable for swimming.
The water temperature in Sint Maarten tends to decrease, its value has decreased both over the last 10 days and over the month.

Today the warmest water in Sint Maarten is recorded in Anse Marcel. Its value in this location is 83°F. And the coldest one is in Marigot, its value 81°F.
The trend can be seen on the graph. It shows the change in average sea surface temperature over the past two months.
For the two most popular locations for swimming in Sint Maarten, the graphs of changes in the average water temperature throughout the year are as follows:
We process, analyze and store data for every beach and city in Sint Maarten. Below is a table with current weather data and trends in some places of the country.
City | Water | Air | ||
Philipsburg | 81°F | ![]() ![]() | 80°F | ![]() |
Maho Beach | 83°F | ![]() ![]() | 80°F | ![]() |
Grand-Case | 83°F | ![]() ![]() | 80°F | ![]() |
Anse Marcel | 83°F | ![]() ![]() | 80°F | ![]() |
Guana Bay | 82°F | ![]() ![]() | 80°F | ![]() |
Marigot | 81°F | ![]() ![]() | 80°F | ![]() |
Sandy Ground | 81°F | ![]() ![]() | 80°F | ![]() |
Climate in Sint Maarten

Saint Martin is located in Central America. The country is washed by the Caribbean Sea. Saint Martin is a small country. To determine the temperature of the water in it, we monitor only one locality.
Tropical marine, trade wind. Most of the year there is warm and comfortable weather with a minimum temperature difference between the seasons. The average temperature in summer (June - September) is about + 27°C, in winter (December - February) - + 25°C, while the daily temperature drops are extremely small - the thermometer at night rarely drops below + 20°C even in winter . The northeastern trade winds blowing from the Atlantic Ocean bring frequent and heavy rains. The amount of precipitation varies from 280 mm on the western shores to 1000 mm on the northeastern slopes of the coastal hills. The average annual rainfall is up to 700 mm (the maximum falls on the period from May to October-November). Relative humidity is fairly constant throughout the year and averages 76%.Saint-Martin lies on the southeastern periphery of the “Caribbean hurricane belt» and can be exposed to typhoons, most likely from July-August to October.
Sint Maarten: regions

Sint Maarten: oceans and seas
We monitor the following oceans and seas that wash the country. Just go to the page for a specific reservoir and see the temperature in all settlements on the coast.