Weather in St. Martin in August

August visitors to St. Martin and Sint Maarten will find a bit wetter weather than they'd find throughout much of the rest of the summer, but weather should still be very fine, indeed, as thunderstorms are still extremely rare. August weather is hot, but showers can cool down a day or night on St. Martin. Fewer tourists, however, visit during this season, when severe tropical weather is at its peak.

Typical Weather in August

Temperatures in St. Martin during August generally vary between an average high during the day of 88.0 degrees and an average low at night of 80.0 degrees.


St. Martin in August: Key Facts
Monthly Averages
High Low Rainfall
No. of Days
with Rain
88.0° F 80.0° F 4.5 N.A.

During the early morning hours of an average August day in St. Martin, you can expect the temperature will be in the vicinity of 82.9 degrees. The temperature will rise over the course of the typical August day, reaching somewhere around 87.7 degrees by early afternoon. The temperature in St. Martin will typically decline by early evening, to approximately 82.2 degrees. For the month of August as a whole, temperatures in St. Martin average around 84.2 degrees.


August Temperatures in St. Martin by Time of Day
Early Morning Late Morning Early Afternoon Late Afternoon Early Evening Overall
82.9° F 86.7° F 87.7° F 85.3° F 82.2° F 84.2° F



During August, rain is most likely to occur around 7:00 AM, and least likely to occur around 7:00 PM. To the extent thunderstorms occur in St. Martin during August, they are most likely to occur around 7:00 PM, as shown in the following table.


August Rainfall in St. Martin by Time of Day
  Percent Frequencies of Hourly Observations
Hour Rain
1:00 AM 17.9 % 1.1 %
4:00 AM 14.5 % 1.2 %
7:00 AM 21.3 % 1.4 %
10:00 AM 15.2 % 1.5 %
1:00 PM 13.2 % 1.8 %
4:00 PM 13.9 % 1.3 %
7:00 PM 12.3 % 2 %
10:00 PM 16.9 % 1.6 %
ALL 15.6 % 1.5 %


Help us improve! We welcome your corrections and suggestions.