Trinidad Weather in September
Trinidad in September sees very high temperatures, with highs around 31°C (88°F) and overnight lows of 25°C (77°F). Rainfall is fairly high at around 138 mm (5.4 in) on average, so pack waterproofs just in case.
Rainfall in Trinidad in September
Looking at the last 30 years, the data shows about 19 days with rain, averaging 138 mm (5.4 in) for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Trinidad in September
In September, Trinidad gets very high temperatures, with highs of 31°C (88°F). Nights cool to around 25°C (77°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Trinidad in September
The days are predominantly sunny, with an estimated total of around 197 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Average water temperature in September
The water is 28°C (82°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.September in Trinidad has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Trinidad & Tobago, check out our Trinidad's climate page.
Trinidad Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
31°C (88°F)
Water Temperature
28°C (82°F)
Chance of Rain
64%
Precipitation
138 mm (5.4 in)
Rainy days
19 days
Humidity
84%
Sunshine
197 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Trinidad typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Historical weather for Trinidad in September
Browse day-by-day weather records for Trinidad spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Trinidad historical weather extremes in September
Our historical data for Trinidad spans 2012 to 2025, revealing these weather extremes.
- Trinidad recorded its highest September temperature of 36°C (97°F) on September 17, 2017.
- On September 22, 2022, Trinidad saw its coldest September day with temperatures maxing out at 26°C (79°F).
- Trinidad registered its coldest September night on September 1, 2022, with temperatures dropping to 22°C (72°F).
- The wettest day in September Trinidad was on September 1, 2020 with 64 mm (2.5 in) of precipitation.
Best Places in Trinidad & Tobago in September
Find out more about the weather in Trinidad & Tobago and which places have the best travel conditions in this month. See all of Trinidad & Tobago in September →
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What to Wear in Trinidad in September
Warm but pleasant conditions in Trinidad in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Trinidad in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Trinidad & Tobago, check out our Trinidad's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Trinidad climate overview or explore weather in Trinidad & Tobago.
