Arima Weather in December
With daytime temperatures of 29°C (84°F) and nighttime lows of 24°C (75°F), December in Arima brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 121 mm (4.8 in) falls on average.
Rainfall in Arima in December
This month experiences about 21 days of rain according to historical data, averaging 121 mm (4.8 in). Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Arima in December
Daytime temperatures in Arima reach 29°C (84°F) in December, dropping to 24°C (75°F) at night. This kind of day-to-night contrast is typical for this time of year. With lows around 24°C (75°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Arima in December
The month enjoys around 215 hours of sunshine, creating mostly sunny days with good weather conditions.
Average water temperature in December
With water at 28°C (82°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.Should you favor a climate that's both dry and comfortably warm, January and February typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Arima's climate page.
Arima Temperature in December
Min Temperature
24°C (75°F)
Max Temperature
29°C (84°F)
Water Temperature
28°C (82°F) *
Chance of Rain
70%
Precipitation
121 mm (4.8 in)
Rainy days
21 days
Humidity
84% *
Sunshine
215 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Arima typically stay consistent throughout December, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in December
Historical weather for Arima in December
Browse day-by-day weather records for Arima spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Arima historical weather extremes in December
Our historical data for Arima spans 2003 to 2025, revealing these weather extremes.
- The hottest December day on record in Arima reached 35°C (95°F) (December 31, 2014).
- The coldest December day was on December 11, 2019, with a maximum of 24°C (75°F).
- The lowest overnight temperature recorded in December was 20°C (68°F) (December 10, 2022).
Best Places in Trinidad & Tobago in December
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 December →
perfect weather
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unpleasant
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What to Wear in Arima in December
Warm but pleasant conditions in Arima in December. 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. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Arima in December
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 Arima's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Arima climate overview or explore weather in Trinidad & Tobago.
