September weather forecast
Trinidad and Tobago

September in Trinidad and Tobago marks the peak of the wet season, characterized by substantial rainfall and consistently warm temperatures. Throughout this month, temperatures typically vary from a mild 24°C (75.2°F) in the early morning to approximately 31°C (87.8°F) during the day's peak. While September does not claim the status of being the hottest or the coldest month, it does contribute to the country's year-round warm and tropical climate.

Both Port of Spain, the capital of Trinidad, and Scarborough, the principal city in Tobago, mirror the national climate conditions for September. These coastal cities experience similar temperature ranges and benefit from the cooling influence of the sea, leading to refreshing sea breezes that help to moderate the heat.

September sees the highest rainfall levels of the year, with average precipitation typically ranging from 200mm (7.87") to 250mm (9.84"). Rain showers are a daily occurrence, and they can be long-lasting. Despite the high rainfall, periods of sunshine still break through the clouds, ensuring the climate is not persistently wet.

Wind speeds in September are moderate, generally averaging 20km/h (12.4mph). Influenced by the northeast trade winds, the breeze helps to offset the high temperatures and humidity associated with the wet season. While September is within the Atlantic hurricane season, Trinidad and Tobago's southern position generally reduces the likelihood of severe weather events.

Visiting Trinidad and Tobago in September is for those who do not mind regular rain showers. Although the country does not host any significant cultural events during this month, the weather promotes a lush and vibrant natural environment. It is an ideal period for tourists who prefer a more tranquil environment, as the wetter weather leads to fewer visitors, and the island's flora and fauna are in full bloom.

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• Port of Spain - September »
  The month with the warmest seawater in Port of Spain is September, with an average sea temperature of 29°C (84.2°F). September is the month with the warmest seawater in Port of Spain, with an average sea temperature of 29°C (84.2°F).
• San Fernando - September »
  In San Fernando in September, during 18.8 rainfall days, 61mm (2.4") of precipitation is typically accumulated. August and September, with an average of 11.1h of sunshine, are months with the most sunshine in San Fernando, Trinidad and Tobago.
• Chaguanas - September »
  In Chaguanas during September, the rain falls for 19.9 days and regularly aggregates up to 78mm (3.07") of precipitation. In Chaguanas during September, the rain falls for 19.9 days and regularly aggregates up to 78mm (3.07") of precipitation.
• Arima - September »
  September tends to be the warmest month in Arima with temperatures averaging a daily high of 30.1°C (86.2°F) and a low of 26.5°C (79.7°F). On the first day of September in Arima sunrise is at 05:55 and sunset at 18:14.
• Couva - September »
  September, with average temperatures reaching a high of 30.5°C (86.9°F) and a low of 26.5°C (79.7°F), is the warmest month in Couva, Trinidad and Tobago. In Couva in September, it is raining for 18.8 days, with typically 61mm (2.4") of accumulated precipitation.
• Point Fortin - September »
  September is the month when Point Fortin experiences its warmest temperatures, averaging a high of 30.5°C (86.9°F) and a low of 26.5°C (79.7°F). The months with the most sunshine in Point Fortin are August and September, with an average of 11.1h of sunshine.
• Sangre Grande - September »
  September, with average temperatures reaching a high of 30.1°C (86.2°F) and a low of 26.5°C (79.7°F), is the warmest month in Sangre Grande, Trinidad and Tobago. September in Sangre Grande, Trinidad and Tobago witnesses a significant drop in rainfall from August to September as the monsoon commences to recede.
• Scarborough - September »
  The months with the warmest seawater in Scarborough are August and September, with an average sea temperature of 29.4°C (84.9°F). In Scarborough in September, the average water temperature is 29.4°C (84.9°F).
• Penal - September »
  August and September, with an average of 11.1h of sunshine, are months with the most sunshine in Penal, Trinidad and Tobago. August and September, with an average of 11.1h of sunshine, are months with the most sunshine in Penal, Trinidad and Tobago.
• Diego Martin - September »
  In Diego Martin the average temperatures in September are the highest, with a peak at 30.1°C (86.2°F) and a low of 26.5°C (79.7°F). In Diego Martin, Trinidad and Tobago, in September, it is raining for 19.9 days, with typically 78mm (3.07") of accumulated precipitation.