December Weather in Rio Branco do Sul, Brazil

Last updated: August 22, 2025

In Rio Branco do Sul, Brazil, the average temperature in December hovers around 20°C (69°F). Expect a comfortable range with minimums dipping to 10°C (51°F) and maximums reaching up to 32°C (90°F). However, be prepared for some moisture, as 153 mm (6.0 in) of precipitation can fall over the course of 18 days, contributing to an average humidity of 87%.

December Temperature in Rio Branco do Sul

In December in Rio Branco do Sul, the average temperature is 20°C (69°F). Maximums can reach 32°C (90°F) and minimums can be as low as 10°C (51°F). This range makes Rio Branco do Sul an ideal destination for travelers seeking pleasant weather and a comfortable climate.

December Weather in Rio Branco do Sul: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Rio Branco do Sul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Branco do Sul, December typically has an average temperature of 20°C (69°F), with highs reaching up to 32°C (90°F) and lows dropping to around 10°C (51°F).

Data source: Temperature data for Rio Branco do Sul generated using information from the Copernicus Climate Change Service.

December Precipitation in Rio Branco do Sul

In Rio Branco do Sul in December, the total precipitation amount reaches 153 mm (6.0 in) over the course of 18 days.

December Precipitation Trends in Rio Branco do Sul

The chart displays monthly precipitation patterns in Rio Branco do Sul, 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 Rio Branco do Sul, December typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 18 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 Rio Branco do Sul

In Rio Branco do Sul in December humidity is 87%. With an average temperature of 20°C (69°F), this humidity feels like a warm, enveloping blanket, making outdoor activities such as sightseeing and hiking quite challenging, as the thick air can leave you feeling sticky and tired quickly.

December Average Humidity in Rio Branco do Sul

This chart illustrates the average monthly humidity levels in Rio Branco do Sul, 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 Rio Branco do Sul is approximately 87%, 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 Rio Branco do Sul

In Rio Branco do Sul in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Rio Branco do Sul.

Maximum UV Index Levels in Rio Branco do Sul for December

The chart shows the monthly maximum UV Index (UVI) for Rio Branco do Sul 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 Rio Branco do Sul typically reaches 15, which falls under the extreme exposure category.

Data source: Rio Branco do Sul 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 Rio Branco do Sul Compares to Other Months

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

This table compares monthly weather conditions in Rio Branco do Sul, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (71°F)	191 mm (7.5 inches)	89%	extreme
February Weather	21°C (70°F)	143 mm (5.6 inches)	86%	extreme
March Weather	21°C (69°F)	119 mm (4.7 inches)	87%	extreme
April Weather	18°C (65°F)	57 mm (2.3 inches)	85%	extreme
May Weather	16°C (61°F)	83 mm (3.3 inches)	84%	very high
June Weather	15°C (59°F)	101 mm (4.0 inches)	83%	high
July Weather	14°C (57°F)	29 mm (1.2 inches)	78%	high
August Weather	15°C (59°F)	73 mm (2.9 inches)	73%	very high
September Weather	18°C (64°F)	71 mm (2.8 inches)	73%	extreme
October Weather	18°C (65°F)	148 mm (5.8 inches)	71%	extreme
November Weather	19°C (66°F)	98 mm (3.8 inches)	83%	extreme
December Weather	20°C (69°F)	153 mm (6.0 inches)	87%	extreme