September weather forecast
Martinique

In September, Martinique navigates through the height of the wet season, characterized by persistent warmth and abundant rainfall. The average temperature during this month stays around 27.5°C (81.5°F), similar to August, with daily temperatures typically oscillating from 22.2°C (72°F) to 31.1°C (88°F). Coastal cities, including the capital, Fort-de-France, continue to benefit from the mitigating influences of the Caribbean Sea and the island's mountainous terrain, providing some respite from the heat.

Rainfall in September is at its zenith, making this month the wettest period of the year. Despite the frequency and volume of precipitation, showers are generally short-lived, interspersed with periods of dry weather. However, the prospect of sudden downpours warrants a degree of preparation for outdoor activities.

Wind conditions in September mirror those of August, with speeds hovering between 20.9km/h (13mph) and 29km/h (18mph). These winds, while calmer than earlier in the year, play a significant role in the climate of the island by providing a cooling counterpoint to the tropical heat.

September offers over 12 hours of daylight, though the frequency of overcast skies increases, covering up to 70% of the day. Despite the cloud cover, sea temperatures remain invitingly warm, fluctuating between 26.1°C (79°F) to 28.9°C (84°F). This warmth supports a range of water activities, with beach-going and swimming remaining appealing pursuits.

As September gives way to October, Martinique continues to endure the wet season's peak. Temperatures remain consistently high, and rainfall persists in its intensity. Yet, the resilient tropical landscape flourishes, offering a vibrant, verdant environment for visitors.

---

• Le Lamentin - September »
  On the first day of September in Le Lamentin, Martinique, sunrise is at 05:51 and sunset at 18:15. In Le Lamentin, Martinique, in September, during 19.2 rainfall days, 225mm (8.86") of precipitation is typically accumulated.
• Le Robert - September »
  September weather in Le Robert, Martinique, comes with the highest rainfall of 86mm (3.39") over 21.8 days. In September, in Le Robert the rain falls for 21.8 days.
• Sainte-Marie - September »
  September proves to be the warmest month in Sainte-Marie, recording an average peak temperature of 29.4°C (84.9°F) and a minimum temperature of 27.3°C (81.1°F). September is the month that records the highest temperatures in Sainte-Marie, with averages ranging from a high of 29.4°C (84.9°F) to a low of 27.3°C (81.1°F).
• Le François - September »
  The month with the warmest seawater in Le François is September, with an average sea temperature of 29.4°C (84.9°F). In Le François, Martinique, the average seawater temperature in September is 29.4°C (84.9°F).
• Ducos - September »
  September in Ducos, Martinique observes a continuation of August's climate attributes with 81mm (3.19") rainfall. In Ducos, September records the average highest temperatures, peaking at 29.4°C (84.9°F) and reaching a low of 27.3°C (81.1°F).
• Sainte-Luce - September »
  In Sainte-Luce the peak temperatures are generally noted in September, averaging a high of 29.4°C (84.9°F) and a low of 27.3°C (81.1°F). In Sainte-Luce, the average seawater temperature in September is 29.4°C (84.9°F).
• Le Marin - September »
  With an average sea temperature of 29.4°C (84.9°F), September is the month with the warmest seawater in Le Marin, Martinique. On the first day of September in Le Marin, sunrise is at 05:51 and sunset at 18:15.
• Rivière-Salée - September »
  The month with the most rainfall in Rivière-Salée is September, when the rain falls for 21.8 days and typically aggregates up to 86mm (3.39") of precipitation. On the first day of September in Rivière-Salée sunrise is at 05:51 and sunset at 18:15.
• Les Trois-Îlets - September »
  The month with the warmest seawater in Les Trois-Îlets is September, with an average sea temperature of 29.4°C (84.9°F). September is the month with the warmest seawater in Les Trois-Îlets, with an average sea temperature of 29.4°C (84.9°F).
• Le Vauclin - September »
  With an average sea temperature of 29.4°C (84.9°F), September is the month with the warmest seawater in Le Vauclin, Martinique. Le Vauclin's warmest month, September, generally records average temperatures ranging from a high of 29.4°C (84.9°F) to a low of 27.3°C (81.1°F).