September weather forecast
Sint Maarten

Sint Maarten - most visited locations

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Flag of Sint Maarten
Flag of Sint Maarten

Weather in September

September in Sint Maarten is characterized by warm temperatures and high rainfall, marking the climax of the rainy season. Average temperatures on the island range from 27°C (80.6°F) to 32°C (89.6°F), with Philipsburg mirroring these averages due to its coastal setting.

September doesn't boast any records for the hottest or coldest month. However, it stands out as the wettest month of the year for Sint Maarten, registering an average precipitation of approximately 140mm (5.51"). This figure signifies an increase compared to August's average of 120mm (4.72").

When compared to August, September experiences a significant upsurge in rainfall, while the temperature range remains more or less consistent. These trends reflect the peak of the rainy season, which begins to wind down from October onwards.

As is characteristic of Sint Maarten's compact size, the weather remains fairly uniform across the island, with minor temperature differences noted between the coastal areas and the hilly inland regions.

Despite the increased rainfall and the ongoing Atlantic hurricane season, September still offers opportunities for visitors to enjoy the island's offerings. The weather is predominantly warm, and while the showers are more frequent, they often pass quickly, leaving ample time for outdoor activities. However, visitors are advised to stay updated with weather forecasts due to the high chance of tropical storms or hurricanes during this month.

  • Philipsburg - September »
    The months with the warmest seawater in Philipsburg are September and October, with an average sea temperature of 29°C (84.2°F). March through September, with an average maximum UV index of 12, are months with the highest UV index in Philipsburg, Sint Maarten.
  • Belvedere - September »
    In Belvedere in September, during 22.2 rainfall days, 100mm (3.94") of precipitation is typically accumulated. In Belvedere during September, the rain falls for 22.2 days and regularly aggregates up to 100mm (3.94") of precipitation.
  • Mary's Fancy - September »
    In Mary's Fancy in September, it is raining for 22.3 days, with typically 97mm (3.82") of accumulated precipitation. On the first day of September in Mary's Fancy, Sint Maarten, sunrise is at 05:58 and sunset at 18:26.
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