December Weather in Sume, Brazil

Last updated: August 22, 2025

In December, the average temperature in Sume, Brazil sits comfortably at 27°C (80°F). Expect a range from a minimum of 19°C (66°F) to a maximum of 36°C (97°F). Rainfall is light, with an average precipitation of only 14 mm (0.5 in) across 2 days. Meanwhile, the air carries a notable 70% humidity, perfect for that tropical feel!

December Temperature in Sume

In December in Sume, the average temperature is 27°C (80°F), with maximums reaching 36°C (97°F) and minimums dropping as low as 19°C (66°F). This climate makes Sume an ideal destination for travelers looking to enjoy warm and pleasant weather.

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

The chart illustrates December temperature patterns in Sume, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sume, December typically has an average temperature of 27°C (80°F), with highs reaching up to 36°C (97°F) and lows dropping to around 19°C (66°F).

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

December Precipitation in Sume

In Sume in December, the precipitation amount reaches 14 mm (0.5 in) over a span of 2 days.

December Precipitation Trends in Sume

The chart displays monthly precipitation patterns in Sume, 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 Sume, December typically receives around 14 mm (0.5 inches) of precipitation spread over approximately 2 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 Sume

In Sume in December humidity is 70%. With an average temperature of 27°C (80°F), this humidity feels like you're enveloped in a warm, heavy blanket, making traveling feel a bit more challenging. The air tends to weigh you down, and you may find yourself needing to take frequent breaks to stay refreshed.

December Average Humidity in Sume

This chart illustrates the average monthly humidity levels in Sume, 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 Sume is approximately 70%, 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 Sume

In Sume 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 Sume.

Maximum UV Index Levels in Sume for December

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

Data source: Sume 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 Sume Compares to Other Months

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

This table compares monthly weather conditions in Sume, 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)	18 mm (0.7 inches)	86%	extreme
February Weather	27°C (80°F)	53 mm (2.1 inches)	89%	extreme
March Weather	26°C (79°F)	96 mm (3.8 inches)	89%	extreme
April Weather	26°C (78°F)	74 mm (2.9 inches)	89%	extreme
May Weather	25°C (77°F)	36 mm (1.4 inches)	90%	extreme
June Weather	24°C (75°F)	17 mm (0.7 inches)	86%	extreme
July Weather	23°C (73°F)	21 mm (0.8 inches)	80%	extreme
August Weather	24°C (75°F)	5 mm (0.2 inches)	77%	extreme
September Weather	25°C (77°F)	3 mm (0.1 inches)	72%	extreme
October Weather	26°C (79°F)	2 mm (0.1 inches)	68%	extreme
November Weather	27°C (80°F)	4 mm (0.1 inches)	66%	extreme
December Weather	27°C (80°F)	14 mm (0.5 inches)	70%	extreme