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Trinidad Weather in September
During September, Trinidad experiences pleasant daytime temperatures of 20°C (68°F) and cooler nights around 9°C (48°F). Expect quite a bit of rainfall. Around 93 mm (3.7 in) is typical.
Rainfall in Trinidad in September
You can typically expect 9 days of rain this month, averaging around 93 mm (3.7 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Trinidad in September
September tends to be one of the excellent months in Trinidad, with 20°C (68°F) in the afternoon and 9°C (48°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Trinidad Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
20°C (68°F)
Chance of Rain
29%
Precipitation
93 mm (3.7 in)
Rainy days
9 days
Trinidad Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Trinidad - and find the best time to visit.
Daily Historical Temperatures
46-year average (1979-2025)
Based on our historical records, temperatures in Trinidad typically stay consistent throughout September, with daily highs averaging around 20°C (68°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 10°C (50°F).
Average temperatures in September
Historical weather records 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
Based on 26 years of weather observations in Trinidad between 1999 and 2025, these are the recorded extremes.
- On September 11, 2013, temperatures climbed to 33°C (91°F), marking the warmest September day on record.
- On September 1, 2020, Trinidad saw its coldest September day with temperatures maxing out at 9°C (48°F).
- Nighttime temperatures dropped to -2°C (28°F) on September 5, 2019, marking the coldest September night on record.
Best Places in Uruguay in September
Find out more about the weather in Uruguay and which places have the best travel conditions in this month. See all of Uruguay in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Trinidad in September
For Trinidad in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.
What To Do in Trinidad in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping4/10 -
Outdoor sports9/10
Trinidad 3-Day Forecast
More climate data for Trinidad
See the full Trinidad climate overview or explore weather in Uruguay.
Popular in September
Where to go in September - average daytime high across popular destinations.
Colonia del Sacramento
18°C (64°F) Montevideo18°C (64°F) La Pedrera17°C (63°F) José Ignacio
17°C (63°F) Piriápolis17°C (63°F) La Paloma16°C (61°F) Punta Del Diablo17°C (63°F) Punta del Este16°C (61°F) Bucket list
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