December Weather in Assis, Brazil

Last updated: August 22, 2025

In Assis, Brazil, the average temperature in December reaches a pleasant 26°C (79°F), but be prepared for some variability, as it can dip to a minimum of 15°C (60°F) and soar to a maximum of 37°C (99°F). Expect a moderate precipitation total of 132 mm (5.2 in) spread over about 15 days, coupled with an average humidity level of 82%.

December Temperature in Assis

In December in Assis, the average temperature is 26°C (79°F). Maximums can reach 37°C (99°F) and minimums can be as low as 15°C (60°F). This makes it an ideal time for travelers seeking warm weather and plenty of outdoor activities.

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

The chart illustrates December temperature patterns in Assis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Assis, December typically has an average temperature of 26°C (79°F), with highs reaching up to 37°C (99°F) and lows dropping to around 15°C (60°F).

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

December Precipitation in Assis

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

December Precipitation Trends in Assis

The chart displays monthly precipitation patterns in Assis, 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 Assis, 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 Assis

In Assis in December, humidity is 82%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket that envelops you, making outdoor activities feel more taxing and requiring frequent breaks to stay hydrated.

December Average Humidity in Assis

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

In Assis 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 Assis.

Maximum UV Index Levels in Assis for December

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

Data source: Assis 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 Assis Compares to Other Months

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

This table compares monthly weather conditions in Assis, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	183 mm (7.2 inches)	84%	extreme
February Weather	26°C (78°F)	145 mm (5.7 inches)	81%	extreme
March Weather	26°C (78°F)	103 mm (4.0 inches)	81%	extreme
April Weather	24°C (75°F)	40 mm (1.6 inches)	75%	extreme
May Weather	21°C (70°F)	50 mm (2.0 inches)	68%	very high
June Weather	20°C (69°F)	51 mm (2.0 inches)	64%	high
July Weather	20°C (68°F)	12 mm (0.5 inches)	58%	high
August Weather	21°C (70°F)	61 mm (2.4 inches)	49%	very high
September Weather	25°C (77°F)	39 mm (1.5 inches)	47%	extreme
October Weather	25°C (77°F)	120 mm (4.7 inches)	44%	extreme
November Weather	25°C (78°F)	92 mm (3.6 inches)	68%	extreme
December Weather	26°C (79°F)	132 mm (5.2 inches)	82%	extreme