December weather forecast
Farias Brito, Brazil

December, the first month of the summer in Farias Brito, is also a hot month, with temperature in the range of an average low of 20.9°C (69.6°F) and an average high of 31.4°C (88.5°F).

Temperature

As December unfolds, the average high-temperature reaches a still tropical 31.4°C (88.5°F), hinting at a slight fluctuation from the previous month. During December, Farias Brito records an average temperature of 20.9°C (69.6°F) at night.

Heat index

December's average heat index is calculated to be a sweltering 36°C (96.8°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In December, the average relative humidity is 60%.

Rainfall

In Farias Brito, in December, during 17 rainfall days, 78mm (3.07") of precipitation is typically accumulated. Throughout the year, there are 172.3 rainfall days, and 764mm (30.08") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:12 and sunset at 17:42. On the last day of December, in Farias Brito, Brazil, sunrise is at 05:25 and sunset at 17:57 -03.

Sunshine

The average sunshine in December in Farias Brito is 8.1h.

UV index

January through August and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 6 during December leads to these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.