December Weather in Orleans, Brazil

Last updated: August 22, 2025

In Orleans, Brazil, the average temperature in December hovers around 22°C (72°F). Expect a minimum of 11°C (52°F) and a maximum of 36°C (97°F). This month also brings considerable rainfall, with 231 mm (9.1 in) of precipitation spread over 21 days. You may notice the air feels quite humid, with an average humidity level of 88%.

December Temperature in Orleans

In December in Orleans, the average temperature is 22°C (72°F). Maximum temperatures can reach 36°C (97°F), while minimums can drop as low as 11°C (52°F). These mild conditions make Orleans an ideal destination for travelers seeking comfortable weather.

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

The chart illustrates December temperature patterns in Orleans, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Orleans, December typically has an average temperature of 22°C (72°F), with highs reaching up to 36°C (97°F) and lows dropping to around 11°C (52°F).

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

December Precipitation in Orleans

In Orleans in December, the total precipitation amount is 231 mm (9.1 in), occurring over the course of 21 days.

December Precipitation Trends in Orleans

The chart displays monthly precipitation patterns in Orleans, 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 Orleans, December typically receives around 231 mm (9.1 inches) of precipitation spread over approximately 21 days.

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

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December Humidity in Orleans

In Orleans in December humidity is 88%. With an average temperature of 22°C (72°F), this humidity feels like a warm, steamy embrace that clings to your skin, making outdoor exploration a sweaty challenge but also a vibrant experience as the air is thick with the scent of nature and vibrant local life.

December Average Humidity in Orleans

This chart illustrates the average monthly humidity levels in Orleans, 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 Orleans is approximately 88%, 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 Orleans

In Orleans in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Orleans, you can check here.

Maximum UV Index Levels in Orleans for December

The chart shows the monthly maximum UV Index (UVI) for Orleans 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 Orleans typically reaches 14, which falls under the extreme exposure category.

Data source: Orleans 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 Orleans Compares to Other Months

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

This table compares monthly weather conditions in Orleans, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (74°F)	273 mm (10.7 inches)	85%	extreme
February Weather	23°C (73°F)	198 mm (7.8 inches)	84%	extreme
March Weather	22°C (71°F)	192 mm (7.6 inches)	84%	extreme
April Weather	19°C (67°F)	94 mm (3.7 inches)	83%	very high
May Weather	17°C (62°F)	133 mm (5.2 inches)	86%	high
June Weather	15°C (60°F)	138 mm (5.4 inches)	82%	moderate
July Weather	14°C (58°F)	62 mm (2.4 inches)	80%	moderate
August Weather	15°C (60°F)	66 mm (2.6 inches)	81%	high
September Weather	18°C (65°F)	147 mm (5.8 inches)	86%	very high
October Weather	19°C (66°F)	136 mm (5.3 inches)	87%	extreme
November Weather	20°C (68°F)	165 mm (6.5 inches)	87%	extreme
December Weather	22°C (72°F)	231 mm (9.1 inches)	88%	extreme