Las Cuevas Weather in September
During September, Las Cuevas experiences high daytime temperatures of 30°C (86°F) and cooler nights around 26°C (79°F). Expect quite a bit of rainfall. Around 129 mm (5.1 in) is typical.
Rainfall in Las Cuevas in September
You can typically expect 19 days of rain this month, averaging around 129 mm (5.1 in). 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 Las Cuevas in September
In September, Las Cuevas sees high temperatures, with highs of 30°C (86°F). Nights drop to around 26°C (79°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.
Sunshine in Las Cuevas in September
The city usually sees around 197 hours of sunlight, indicating many sunny days — a great month for sightseeing.
Average water temperature in September
The water temperature is 28°C (82°F), which most people find very comfortable. A good month for swimming and water sports.If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Las Cuevas. Our weather planner can help you explore destinations with more pleasant weather conditions.
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 Las Cuevas's climate page.
Las Cuevas Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Water Temperature
28°C (82°F) *
Chance of Rain
63%
Precipitation
129 mm (5.1 in)
Rainy days
19 days
Humidity
84% *
Sunshine
197 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Las Cuevas typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Historical weather for Las Cuevas in September
Browse day-by-day weather records for Las Cuevas spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Las Cuevas historical weather extremes in September
Based on 35 years of weather observations in Las Cuevas between 1990 and 2025, these are the recorded extremes.
- On September 17, 2017, temperatures climbed to 36°C (97°F), marking the warmest September day on record.
- On September 7, 1991, Las Cuevas saw its coldest September day with temperatures maxing out at 25°C (77°F).
- The lowest overnight temperature recorded in September was 21°C (70°F) (September 22, 1994).
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 Las Cuevas in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Las Cuevas 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 Las Cuevas's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Las Cuevas climate overview or explore weather in Trinidad & Tobago.
