Arima Temperature by Month
Arima, Trinidad, Trinidad & Tobago has a consistently comfortable climate year-round, with daytime highs averaging 30°C (86°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Arima Monthly Temperatures
The climate in Arima remains fairly constant, offering comfortable temperatures throughout the year. Maximum daytime temperatures reach a very warm 31°C (88°F) in September, dropping to a comfortable 29°C (84°F) in January. Nighttime lows stay between 25°C (77°F) and 24°C (75°F).
The chart below illustrates the average maximum day and minimum night temperatures in Arima by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. September, the warmest month, averages 197 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Arima Temperatures: 1976-2026
Browse day-by-day temperature records for Arima spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Arima vs Trinidad & Tobago
The map below shows the annual temperature across Trinidad & Tobago. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Arima vs World: Temperature Compared
Arima's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Arima?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Arima, January is the coolest month, with average highs of 29°C (84°F) and humidity around 81% — considered very high. In September, the warmest month, temperatures average 31°C (88°F) with 84% humidity — conditions that feel very high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Arima this rarely lasts long on the ground.
For more on Arima's weather — including monthly rainfall, sunshine hours, and humidity — visit our Arima climate page.
