September in St. Barts is considered the "quietest" and most controversial time to visit. It is the height of the Atlantic hurricane season, and statistically, it is the month most likely to be affected by tropical storms. Because of this risk, many of the island’s most famous restaurants, boutique hotels, and shops close for their annual "congé" (vacation) and maintenance during September and October. However, for a specific type of traveler, it is a hidden gem: accommodation prices are at their absolute lowest of the year, and the beaches, such as Colombier or Saline, are almost entirely deserted. You can enjoy a level of privacy that is impossible during the high-season glitz of December. The weather is very hot and humid, with average highs of 88°F (31°C) and frequent, short tropical downpours. If you are a gambler who doesn't mind a "sleepy" island vibe and has flexible travel insurance, September offers an authentic, unpretentious version of St. Barts. Just be sure to check that your preferred hotel is actually open, as the island effectively "hibernates" until the re-openings begin in November.