December Weather in Arima, Trinidad and Tobago

Last updated: August 31, 2025

In Arima, Trinidad and Tobago, the average temperature in December hovers around 26°C (79°F), offering a warm climate perfect for exploration. Expect the minimum to drop to 23°C (74°F) and a comfortable maximum of 28°C (84°F). However, be prepared for 131 mm (5.1 in) of precipitation over about 24 days, contributing to an average humidity level of 80%. Embrace the tropical atmosphere as you enjoy your stay!

December Temperature in Arima

In December in Arima, the average temperature is 26°C (79°F). Maximum temperatures can reach up to 28°C (84°F), while minimums may drop as low as 23°C (74°F). This pleasant climate makes it an ideal time for traveling and enjoying outdoor activities.

December Weather in Arima: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Arima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arima, December typically has an average temperature of 26°C (79°F), with highs reaching up to 28°C (84°F) and lows dropping to around 23°C (74°F).

Data source: Temperature data for Arima generated using information from the Copernicus Climate Change Service.

December Precipitation in Arima

In Arima in December, the precipitation amount is 131 mm (5.1 in) over a span of 24 days.

December Precipitation Trends in Arima

The chart displays monthly precipitation patterns in Arima, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Arima, December typically receives around 131 mm (5.1 inches) of precipitation spread over approximately 24 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Arima

In Arima in December humidity is 80%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket, making outdoor activities feel sticky and exhausting, potentially dampening the travel experience and necessitating frequent breaks to cool down and hydrate.

December Average Humidity in Arima

This chart illustrates the average monthly humidity levels in Arima, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Arima is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Arima

In Arima in December, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Arima.

Maximum UV Index Levels in Arima for December

The chart shows the monthly maximum UV Index (UVI) for Arima in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Arima typically reaches 10, which falls under the very high exposure category.

Data source: Arima December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Arima Compares to Other Months

Weather in Arima varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Arima, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Arima, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	68 mm (2.7 inches)	78%	extreme
February Weather	25°C (77°F)	51 mm (2.0 inches)	77%	extreme
March Weather	25°C (78°F)	50 mm (2.0 inches)	76%	extreme
April Weather	26°C (79°F)	30 mm (1.2 inches)	75%	extreme
May Weather	26°C (80°F)	76 mm (3.0 inches)	76%	extreme
June Weather	26°C (79°F)	149 mm (5.9 inches)	80%	extreme
July Weather	26°C (79°F)	179 mm (7.0 inches)	83%	extreme
August Weather	27°C (80°F)	178 mm (7.0 inches)	80%	extreme
September Weather	27°C (81°F)	138 mm (5.4 inches)	79%	extreme
October Weather	27°C (80°F)	188 mm (7.4 inches)	79%	extreme
November Weather	26°C (80°F)	143 mm (5.6 inches)	81%	extreme
December Weather	26°C (79°F)	131 mm (5.1 inches)	80%	very high