December weather forecast
Porciúncula, Brazil

The first month of the summer, December, is also a moderately hot month in Porciúncula, Brazil, with an average temperature ranging between max 28.7°C (83.7°F) and min 19.9°C (67.8°F).

Temperature

Entering December, Porciúncula's average high-temperature reads a still moderately hot 28.7°C (83.7°F), indicating a close resemblance to the previous month's climate. During December, Porciúncula experiences a consistent low-temperature average of 19.9°C (67.8°F).

Heat index

In December, the average heat index is computed to be a sweltering 35°C (95°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Porciúncula, Brazil, the average relative humidity in December is 86%.

Rainfall

The month with the most rainfall in Porciúncula is December, when the rain falls for 26.4 days and typically aggregates up to 207mm (8.15") of precipitation.

Daylight

The month with the longest days in Porciúncula is December, with an average of 13h and 24min of daylight.
On the first day of December in Porciúncula, sunrise is at 04:57 and sunset at 18:16. On the last day of the month, sunrise is at 05:09 and sunset at 18:32 -03.

Sunshine

In Porciúncula, the average sunshine in December is 7.8h.

UV index

The months with the highest UV index are January, February, August, September and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In December, a regular UV index of 6 translates into these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.