Average monthly water temperature in Saint Martin, Saint Martin
On this page you find the mean water temperature over the year in Saint Martin (), Saint Martin. Get insights into the water temperature fluctuations and discover what they mean for visitors.
In Saint Martin, water remains inviting throughout the year. The warmest month is September, with an average water temperature of 29°C (84°F).
The coolest temperature, January, still averages a pleasant 26°C (79°F). This means you will have a consistently enjoyable environment for water activities and recreation.
Saint Martin Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saint Martin - and find the best time to visit.
Saint Martin 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Saint Martin climate overview or explore weather in Saint Martin.
Popular this month
Where to go in September - average daytime high across popular destinations.
Baie Longue
30°C (86°F) Cul de Sac30°C (86°F) Marigot30°C (86°F) Grand Case30°C (86°F) Orient Bay French St Martin30°C (86°F) Les Terres Basses30°C (86°F) Baie Nettle30°C (86°F) Orient Bay30°C (86°F) 
