Diamond Weather in September
September in Diamond brings high temperatures, with daytime highs of 30°C (86°F) and nights around 27°C (81°F). Quite a bit of rainfall is expected, around 167 mm (6.6 in), so pack an umbrella.
Rainfall in Diamond in September
Historically, approximately 18 days this month are expected to have rain, averaging 167 mm (6.6 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Diamond in September
Daytime highs in Diamond in September reach 30°C (86°F), with nights around 27°C (81°F). This kind of day-to-night contrast is typical for this time of year. Nights are warm at 27°C (81°F), which can make sleeping uncomfortable. Keeping windows open or using a fan can help. A cold shower before bed is also a good way to cool down.September in Diamond has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations 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 Diamond's climate page.
Diamond Temperature in September
Min Temperature
27°C (81°F)
Max Temperature
30°C (86°F)
Chance of Rain
61%
Precipitation
167 mm (6.6 in)
Rainy days
18 days
Daily Historical Temperatures
44-year average (1978-2025)
Based on our historical records, temperatures in Diamond typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in September
Historical weather for Diamond in September
Browse day-by-day weather records for Diamond spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Diamond historical weather extremes in September
Our historical data for Diamond spans 1990 to 2025, revealing these weather extremes.
- The warmest day in September was on September 24, 2024, with a maximum of 33°C (91°F).
- The lowest daytime temperature in September was 26°C (79°F), recorded on September 7, 1994.
- Nighttime temperatures dropped to 22°C (72°F) on September 16, 2011, marking the coldest September night on record.
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
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tolerable
unpleasant
poor
What to Wear in Diamond in September
Warm but pleasant conditions in Diamond 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. It's going to pour! Pack a good poncho and prepare for very wet conditions.What To Do in Diamond 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 Diamond's climate page.
See the full Diamond climate overview or explore weather in Trinidad & Tobago.
