Average monthly water temperature in Sint Maarten, Sint Maarten
On this page you find the mean water temperature over the year in Sint Maarten (), Sint Maarten. Understand how water temperatures vary throughout the year.
Sint Maarten offers consistently warm water temperatures year-round. The warmest month, September, averages 29°C (84°F).
Even in the coolest water temperature month, January, the average temperature is 26°C (79°F). These conditions are perfect for water activities and relaxation throughout the year.
Sint Maarten Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sint Maarten - and find the best time to visit.
Sint Maarten 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Sint Maarten climate overview or explore weather in Sint Maarten.
Popular this month
Where to go in September - average daytime high across popular destinations.
Cupecoy
30°C (86°F) Maho Reef30°C (86°F) Koolbaai30°C (86°F) Dawn Beach30°C (86°F) Philipsburg30°C (86°F) Simpson Bay30°C (86°F) Lowlands30°C (86°F) Upper Princeʼs Quarter30°C (86°F) 
