December Weather in Coari, Brazil

Last updated: August 22, 2025

In December, the average temperature in Coari, Brazil is a warm 27°C (80°F). Expect a minimum of 23°C (74°F) and a maximum reaching 33°C (91°F). This month also sees 311 mm (12.3 in) of precipitation spread over 29 days, contributing to a high average humidity of 82%.

December Temperature in Coari

In December in Coari, the average temperature is 27°C (80°F). The maximum can reach 33°C (91°F), and the minimum can be as low as 23°C (74°F). This makes Coari an ideal destination for travelers looking to enjoy warm weather while exploring its attractions.

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

The chart illustrates December temperature patterns in Coari, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Coari, December typically has an average temperature of 27°C (80°F), with highs reaching up to 33°C (91°F) and lows dropping to around 23°C (74°F).

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

December Precipitation in Coari

In Coari in December, the total precipitation amount is 311 mm (12.3 in) distributed over 29 days.

December Precipitation Trends in Coari

The chart displays monthly precipitation patterns in Coari, 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 Coari, December typically receives around 311 mm (12.3 inches) of precipitation spread over approximately 29 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 Coari

In Coari in December, humidity is 82%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel sticky and heavy, often leaving travelers longing for shade and a refreshing drink.

December Average Humidity in Coari

This chart illustrates the average monthly humidity levels in Coari, 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 Coari is approximately 82%, 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 Coari

In Coari in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Coari.

Maximum UV Index Levels in Coari for December

The chart shows the monthly maximum UV Index (UVI) for Coari 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 Coari typically reaches 13, which falls under the extreme exposure category.

Data source: Coari 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 Coari Compares to Other Months

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

This table compares monthly weather conditions in Coari, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	247 mm (9.7 inches)	82%	extreme
February Weather	27°C (80°F)	290 mm (11.4 inches)	73%	extreme
March Weather	27°C (81°F)	322 mm (12.7 inches)	79%	extreme
April Weather	27°C (80°F)	373 mm (14.7 inches)	86%	extreme
May Weather	27°C (80°F)	298 mm (11.7 inches)	89%	extreme
June Weather	27°C (81°F)	149 mm (5.9 inches)	83%	extreme
July Weather	27°C (81°F)	83 mm (3.3 inches)	63%	extreme
August Weather	28°C (82°F)	77 mm (3.0 inches)	45%	extreme
September Weather	28°C (82°F)	111 mm (4.4 inches)	40%	extreme
October Weather	28°C (82°F)	170 mm (6.7 inches)	31%	extreme
November Weather	27°C (81°F)	254 mm (10.0 inches)	48%	extreme
December Weather	27°C (80°F)	311 mm (12.3 inches)	82%	extreme