December weather forecast
Macambira, Brazil

The first month of the summer, December, is still a hot month in Macambira, Brazil, with an average temperature fluctuating between 31.9°C (89.4°F) and 21.8°C (71.2°F).

Temperature

The average high-temperature is a still tropical 31.9°C (89.4°F) in December, hardly different from the 31.5°C (88.7°F) recorded in November. The month of December records an average low-temperature of 21.8°C (71.2°F) in Macambira, Brazil.

Heat index

For most parts of December, the heat index is evaluated at a scorching 41°C (105.8°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

With an average relative humidity of 72%, December is the least humid month in Macambira.

Rainfall

In Macambira, Brazil, in December, during 8 rainfall days, 24mm (0.94") of precipitation is typically accumulated. Throughout the year, there are 183.6 rainfall days, and 371mm (14.61") of precipitation is accumulated.

Daylight

With an average of 12h and 42min of daylight, December has the longest days of the year in Macambira.
On the first day of the month, sunrise is at 04:58 and sunset at 17:40. On the last day of December, in Macambira, sunrise is at 05:11 and sunset at 17:55 -03.

Sunshine

With an average of 7.9h of sunshine, December has the most sunshine of the year.

UV index

The months with the highest UV index are January through March, November and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 7 translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.