December weather forecast
Arês, Brazil

The first month of the summer, December, is a tropical month in Arês, Brazil, with an average temperature varying between 30.1°C (86.2°F) and 25.3°C (77.5°F).

Temperature

As Arês, Brazil, welcomes December, the average high-temperature records at a tropical 30.1°C (86.2°F), marking an insignificant deviation from the prior month. Arês maintains a minor drop in temperature during December nights, with averages of 25.3°C (77.5°F).

Heat index

December's average heat index is estimated at a sweltering 36°C (96.8°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in December in Arês is 72%.

Rainfall

In Arês, Brazil, in December, during 13.3 rainfall days, 14mm (0.55") of precipitation is typically accumulated. Throughout the year, there are 173.2 rainfall days, and 403mm (15.87") 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 04:56 and sunset at 17:23. On the last day of December, sunrise is at 05:09 and sunset at 17:38 -03.

Sunshine

The average sunshine in December is 8.2h.

UV index

January through June, August through December, with an average maximum UV index of 7, are months with the highest UV index in Arês, Brazil. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 7 in December transforms into the following instructions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.