December Weather in Rio das Pedras, Brazil

Last updated: August 22, 2025

In Rio das Pedras, Brazil, the average temperature in December is a pleasant 25°C (77°F). Expect a minimum of 14°C (58°F) and a peak of 38°C (100°F), providing a warm climate overall. However, be prepared for some rain, as precipitation totals around 131 mm (5.2 in) over 17 days. With an average humidity of 83%, this month can feel quite tropical!

December Temperature in Rio das Pedras

In December in Rio das Pedras, the average temperature is 25°C (77°F). Maximums can reach 38°C (100°F), while minimums can drop as low as 14°C (58°F). This pleasant climate makes Rio das Pedras an ideal destination for outdoor activities and exploring the local culture.

December Weather in Rio das Pedras: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Rio das Pedras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio das Pedras, December typically has an average temperature of 25°C (77°F), with highs reaching up to 38°C (100°F) and lows dropping to around 14°C (58°F).

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

December Precipitation in Rio das Pedras

In Rio das Pedras in December, the total precipitation amount is 131 mm (5.2 in) over the course of 17 days.

December Precipitation Trends in Rio das Pedras

The chart displays monthly precipitation patterns in Rio das Pedras, 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 das Pedras, December typically receives around 131 mm (5.2 inches) of precipitation spread over approximately 17 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Rio das Pedras

In Rio das Pedras in December humidity is 83%. With an average temperature of 25°C (77°F), this humidity feels like a warm, enveloping blanket, making it essential for travelers to stay hydrated and seek shade to enjoy their adventures comfortably.

December Average Humidity in Rio das Pedras

This chart illustrates the average monthly humidity levels in Rio das Pedras, 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 das Pedras is approximately 83%, 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 das Pedras

In Rio das Pedras 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 Rio das Pedras.

Maximum UV Index Levels in Rio das Pedras for December

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

Data source: Rio das Pedras 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 das Pedras Compares to Other Months

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

This table compares monthly weather conditions in Rio das Pedras, 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)	189 mm (7.5 inches)	88%	extreme
February Weather	25°C (77°F)	161 mm (6.3 inches)	87%	extreme
March Weather	25°C (77°F)	95 mm (3.8 inches)	86%	extreme
April Weather	23°C (74°F)	46 mm (1.8 inches)	82%	extreme
May Weather	20°C (69°F)	38 mm (1.5 inches)	76%	very high
June Weather	20°C (68°F)	25 mm (1.0 inches)	71%	high
July Weather	19°C (66°F)	9 mm (0.3 inches)	67%	high
August Weather	20°C (68°F)	46 mm (1.8 inches)	59%	very high
September Weather	24°C (75°F)	33 mm (1.3 inches)	54%	extreme
October Weather	24°C (75°F)	97 mm (3.8 inches)	50%	extreme
November Weather	24°C (75°F)	128 mm (5.1 inches)	74%	extreme
December Weather	25°C (77°F)	131 mm (5.2 inches)	83%	extreme