December Weather in Assai, Brazil

Last updated: August 22, 2025

In Assai, Brazil, the average temperature in December is a pleasant 25°C (78°F). Expect a range where the minimum can drop to 15°C (58°F) and the maximum can soar to 36°C (98°F). Be prepared for some rain, with an average precipitation of 132 mm (5.2 in) spread over 15 days. With average humidity at 82%, the air can feel quite tropical!

December Temperature in Assai

In December in Assai, the average temperature is 25°C (78°F). The maximum can reach 36°C (98°F), while the minimum can dip as low as 15°C (58°F). Overall, this makes Assai an ideal destination for travelers looking to enjoy warm and pleasant weather.

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

The chart illustrates December temperature patterns in Assai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Assai, December typically has an average temperature of 25°C (78°F), with highs reaching up to 36°C (98°F) and lows dropping to around 15°C (58°F).

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

December Precipitation in Assai

In Assai in December, the precipitation amount is 132 mm (5.2 in), occurring over a span of 15 days.

December Precipitation Trends in Assai

The chart displays monthly precipitation patterns in Assai, 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 Assai, December typically receives around 132 mm (5.2 inches) of precipitation spread over approximately 15 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 Assai

In Assai in December, humidity is 82%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities a bit more challenging and encouraging you to seek shade or a cool spot during your travels.

December Average Humidity in Assai

This chart illustrates the average monthly humidity levels in Assai, 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 Assai 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 Assai

In Assai in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Assai.

Maximum UV Index Levels in Assai for December

The chart shows the monthly maximum UV Index (UVI) for Assai 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 Assai typically reaches 16, which falls under the extreme exposure category.

Data source: Assai 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 Assai Compares to Other Months

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

This table compares monthly weather conditions in Assai, 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 (77°F)	172 mm (6.8 inches)	84%	extreme
February Weather	25°C (77°F)	130 mm (5.1 inches)	81%	extreme
March Weather	25°C (78°F)	92 mm (3.6 inches)	81%	extreme
April Weather	23°C (74°F)	49 mm (1.9 inches)	75%	extreme
May Weather	20°C (69°F)	65 mm (2.5 inches)	68%	very high
June Weather	19°C (67°F)	69 mm (2.7 inches)	64%	high
July Weather	19°C (66°F)	24 mm (0.9 inches)	58%	high
August Weather	20°C (68°F)	71 mm (2.8 inches)	49%	very high
September Weather	24°C (75°F)	38 mm (1.5 inches)	47%	extreme
October Weather	24°C (75°F)	118 mm (4.6 inches)	44%	extreme
November Weather	25°C (76°F)	88 mm (3.5 inches)	68%	extreme
December Weather	25°C (78°F)	132 mm (5.2 inches)	82%	extreme