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.

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• Le Lamentin - September »
  September, recording an average high temperature of 31.4°C (88.5°F) and a low temperature of 23.9°C (75°F), is Le Lamentin's warmest month. In Le Lamentin during September, the rain falls for 19.2 days and regularly aggregates up to 225mm (8.86") of precipitation.
• Le Robert - September »
  The month with the most rainfall in Le Robert is September, when the rain falls for 21.8 days and typically aggregates up to 86mm (3.39") of precipitation. The month with the most rainfall in Le Robert is September, when the rain falls for 21.8 days and typically aggregates up to 86mm (3.39") of precipitation.
• Sainte-Marie - September »
  Sainte-Marie's temperature records reveal September as the warmest month, marked by average highs of 29.4°C (84.9°F) and lows of 27.3°C (81.1°F). With an average sea temperature of 29.4°C (84.9°F), September is the month with the warmest seawater in Sainte-Marie.
• Le François - September »
  The months with the least sunshine in Le François, Martinique, are September and October, with an average of 7h of sunshine. March through September, with an average maximum UV index of 12, are months with the highest UV index in Le François, Martinique.
• Ducos - September »
  September stands out as Ducos's warmest month, with temperatures ranging between an average high of 29.4°C (84.9°F) and a low of 27.3°C (81.1°F). September in Ducos, Martinique observes a continuation of August's climate attributes with 81mm (3.19") rainfall.
• Sainte-Luce - September »
  Temperature records in Sainte-Luce mark September as the warmest month, with highs averaging 29.4°C (84.9°F) and lows at 27.3°C (81.1°F). Sainte-Luce's September weather, with an average high temperature of 29.4°C (84.9°F) and an average low temperature of 27.3°C (81.1°F), tends to be the warmest of the year.
• Le Marin - September »
  September is the month with the warmest seawater in Le Marin, with an average sea temperature of 29.4°C (84.9°F). With an average sea temperature of 29.4°C (84.9°F), September is the month with the warmest seawater in Le Marin.
• Rivière-Salée - September »
  Temperature records in Rivière-Salée, Martinique, mark September as the warmest month, with highs averaging 29.3°C (84.7°F) and lows at 27°C (80.6°F). On the first day of September in Rivière-Salée, Martinique, sunrise is at 05:51 and sunset at 18:15.
• Les Trois-Îlets - September »
  September stands out as Les Trois-Îlets's warmest month, with temperatures ranging between an average high of 29.4°C (84.9°F) and a low of 27.3°C (81.1°F). In Les Trois-Îlets in September, the average water temperature is 29.4°C (84.9°F).
• Le Vauclin - September »
  September is the month with the warmest seawater in Le Vauclin with an average sea temperature of 29.4°C (84.9°F). September, characterized by an average high temperature of 29.4°C (84.9°F) and a low temperature of 27.3°C (81.1°F), is generally the warmest month in Le Vauclin.