Average monthly water temperature in Simpson Bay, Sint Maarten
On this page you find the mean water temperature over the year in Simpson Bay (), Sint Maarten. Discover when the water is at its warmest and coolest, perfect for planning your visit.
In Simpson Bay, water temperatures are consistently warm throughout the year. The warmest month is September, with an average water temperature of 29°C (84°F).
The coolest month is January, with an average temperature of 26°C (79°F). This makes Simpson Bay a year-round destination for swimming and other water-based activities.
Simpson Bay Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Simpson Bay - and find the best time to visit.
Simpson Bay 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Simpson Bay 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) 
