Piarco Weather in September
Piarco in September averages 31°C (88°F) during the day and 25°C (77°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Piarco in September
Analyzing past climate data, one can expect approximately 19 days of rain, averaging 139 mm (5.5 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Piarco in September
Daytime highs in Piarco in September reach 31°C (88°F), with nights around 25°C (77°F). For most visitors, the main thing to prepare for is the heat during the day. With lows around 25°C (77°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Piarco in September
With approximately 197 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.
Average water temperature in September
At 28°C (82°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and February typically offer the best weather for Piarco.
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 Piarco's climate page.
Piarco 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
139 mm (5.5 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 Piarco 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 Piarco in September
Browse day-by-day weather records for Piarco spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Piarco historical weather extremes in September
Our historical data for Piarco spans 2012 to 2025, revealing these weather extremes.
- The warmest day in September was on September 17, 2017, with a maximum of 36°C (97°F).
- On September 22, 2022, Piarco saw its coldest September day with temperatures maxing out at 26°C (79°F).
- Nighttime temperatures dropped to 22°C (72°F) on September 1, 2022, marking the coldest September night on record.
- Peak precipitation in September occurred on September 1, 2020, when 64 mm (2.5 in) of precipitation was measured.
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Piarco in September
Warm but pleasant conditions in Piarco 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. Expect water temperatures of around 28°C (82°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Piarco 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 Piarco's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Piarco climate overview or explore weather in Trinidad & Tobago.
