Weather in Trinidad and Tobago for September 2025
In general, the average temperature in Trinidad and Tobago at the beginning of September is 31.9 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 32.3 °C by the end of September.
Trinidad and Tobago experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 156.1 mm.
Is September a good time to visit Trinidad and Tobago? check out the best time to travel to Trinidad and Tobago page.
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Trinidad and Tobago in September average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2  31° | 3 32° | 4 32° | 5 33° | 6 33° | 7 32° |
| 8 33° | 9 33° | 10 33° | 11  32° | 12  32° | 13 33° | 14 33° |
| 15 34° | 16 33° | 17 33° | 18 33° | 19 33° | 20 33° | 21 33° |
| 22  32° | 23 32° | 24  33° | 25 33° | 26 31° | 27 32° | 28 33° |
| 29 32° | 30 32° |
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Temperatures trend during September in Trinidad and Tobago
September weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Light rain shower | 30° /23° | 14.5 mm | 7 | |
| 2 Sept. | Patchy light rain with thunder | 31° /23° | 8.6 mm | 7 | |
| 3 Sept. | Patchy rain possible | 32° /24° | 3.1 mm | 7 | |
| 4 Sept. | Patchy rain possible | 32° /24° | 1.5 mm | 7 | |
| 5 Sept. | Patchy rain possible | 33° /24° | 0.1 mm | 7 | |
| 6 Sept. | Patchy rain possible | 33° /24° | 0.9 mm | 7 | |
| 7 Sept. | Light rain shower | 32° /24° | 3.1 mm | 7 | |
| 8 Sept. | Patchy rain possible | 33° /24° | 2.2 mm | 7 | |
| 9 Sept. | Patchy rain possible | 33° /24° | 3.9 mm | 7 | |
| 10 Sept. | Patchy rain possible | 33° /24° | 6.5 mm | 7 | |
| 11 Sept. | Partly cloudy | 32° /25° | 12.8 mm | 8 | |
| 12 Sept. | Cloudy | 32° /25° | 10.2 mm | 7 | |
| 13 Sept. | Partly cloudy | 33° /25° | 0.1 mm | 8 | |
| 14 Sept. | Partly cloudy | 33° /25° | 0.1 mm | 8 | |
| 15 Sept. | Cloudy | 34° /25° | 1.3 mm | 7 | |
| 16 Sept. | Patchy rain possible | 33° /24° | 5.6 mm | 7 | |
| 17 Sept. | Partly cloudy | 33° /24° | 5.6 mm | 8 | |
| 18 Sept. | Patchy rain possible | 33° /24° | 2.2 mm | 7 | |
| 19 Sept. | Patchy rain possible | 33° /25° | 1.3 mm | 7 | |
| 20 Sept. | Light rain shower | 33° /25° | 1.9 mm | 7 | |
| 21 Sept. | Patchy light rain with thunder | 33° /25° | 7 mm | 7 | |
| 22 Sept. | Moderate or heavy rain shower | 32° /24° | 11.6 mm | 8 | |
| 23 Sept. | Moderate or heavy rain shower | 32° /25° | 4.9 mm | 7 | |
| 24 Sept. | Patchy light drizzle | 33° /25° | 1.9 mm | 7 | |
| 25 Sept. | Patchy light rain with thunder | 33° /24° | 7.2 mm | 7 | |
| 26 Sept. | Light rain shower | 31° /25° | 21.2 mm | 7 | |
| 27 Sept. | Patchy light rain with thunder | 32° /25° | 3.4 mm | 7 | |
| 28 Sept. | Patchy light drizzle | 33° /24° | 9.2 mm | 7 | |
| 29 Sept. | Patchy rain possible | 32° /25° | 1.3 mm | 7 | |
| 30 Sept. | Light rain shower | 32° /24° | 2.8 mm | 7 | |
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Guide for Trinidad and Tobago in September
In September, Trinidad and Tobago experiences warm and humid weather with occasional rainfall. At the beginning of the month, the islands typically have daytime temperatures around 31° and nighttime temperatures around 24°.
The weather is generally sunny with some brief showers, and the sea temperature remains warm and inviting for beachgoers and water sports enthusiasts.
Toward the end of September, the islands may experience an increase in rainfall as the wet season progresses. Daytime temperatures remain around 31°, while nighttime temperatures may slightly decrease to around 23°.
The humidity levels can be high, and there is a possibility of short, heavy downpours, particularly in the late afternoons or evenings.
Overall, September in Trinidad and Tobago offers warm and tropical weather, making it an ideal destination for those seeking a relaxing beach vacation or looking to explore the vibrant local culture.
However, visitors should be prepared for the possibility of intermittent rain showers and high humidity, especially toward the end of the month.
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Trinidad and Tobago in September - FAQ
What to pack to Trinidad and Tobago in September?
As you prepare for your trip to Trinidad and Tobago in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Trinidad and Tobago, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
- Insect Repellent: For destinations with mosquitos or other insects
September rainfall patterns in Trinidad and Tobago
UV exposure in Trinidad and Tobago during September
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Where is Trinidad and Tobago?Get accurate weather forecasts for Trinidad and Tobago, located at latitude 10.28 and longitude -61.446. Stay updated with localized weather information tailored for Trinidad and Tobago.