December Weather in Fonte Boa, Brazil

Last updated: August 22, 2025

In Fonte Boa, Brazil, the average temperature in December is a warm 26°C (80°F), with comfortable minimums around 23°C (73°F) and peak highs reaching 33°C (93°F). During this month, expect 337 mm (13.3 in) of precipitation spread over 30 days, contributing to an average humidity level of 87%. Embrace the tropical climate while staying prepared for those refreshing showers!

December Temperature in Fonte Boa

In December in Fonte Boa, the average temperature is 26°C (80°F). Maximums can reach 33°C (93°F) and minimums can drop to as low as 23°C (73°F). It's an ideal time for travelers who enjoy warm weather and outdoor activities.

December Weather in Fonte Boa: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Fonte Boa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fonte Boa, December typically has an average temperature of 26°C (80°F), with highs reaching up to 33°C (93°F) and lows dropping to around 23°C (73°F).

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

December Precipitation in Fonte Boa

In Fonte Boa in December, the precipitation amount is 337 mm (13.3 in) over the course of 30 days.

December Precipitation Trends in Fonte Boa

The chart displays monthly precipitation patterns in Fonte Boa, 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 Fonte Boa, December typically receives around 337 mm (13.3 inches) of precipitation spread over approximately 30 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 Fonte Boa

In Fonte Boa in December, humidity is 87%. With an average temperature of 26°C (80°F), this humidity feels like a heavy blanket wrapping around you, making travel feel sticky and exhausting as each step demands extra effort amidst the thick, muggy air.

December Average Humidity in Fonte Boa

This chart illustrates the average monthly humidity levels in Fonte Boa, 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 Fonte Boa 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 Fonte Boa

In Fonte Boa in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Fonte Boa.

Maximum UV Index Levels in Fonte Boa for December

The chart shows the monthly maximum UV Index (UVI) for Fonte Boa 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 Fonte Boa typically reaches 13, which falls under the extreme exposure category.

Data source: Fonte Boa 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 Fonte Boa Compares to Other Months

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

This table compares monthly weather conditions in Fonte Boa, 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 (80°F)	246 mm (9.7 inches)	84%	extreme
February Weather	27°C (80°F)	260 mm (10.3 inches)	73%	extreme
March Weather	27°C (80°F)	287 mm (11.3 inches)	77%	extreme
April Weather	26°C (80°F)	369 mm (14.5 inches)	85%	extreme
May Weather	26°C (79°F)	421 mm (16.6 inches)	90%	extreme
June Weather	26°C (79°F)	250 mm (9.9 inches)	84%	extreme
July Weather	26°C (79°F)	147 mm (5.8 inches)	74%	extreme
August Weather	27°C (80°F)	122 mm (4.8 inches)	54%	extreme
September Weather	27°C (81°F)	146 mm (5.7 inches)	39%	extreme
October Weather	27°C (81°F)	182 mm (7.2 inches)	36%	extreme
November Weather	27°C (81°F)	251 mm (9.9 inches)	58%	extreme
December Weather	26°C (80°F)	337 mm (13.3 inches)	87%	extreme