December weather forecast
Recreio dos Bandeirantes, Brazil

December, the first month of the summer in Recreio dos Bandeirantes, is still a warm month, with an average temperature varying between 29.1°C (84.4°F) and 23°C (73.4°F).

Temperature

The arrival of December records an average high-temperature of a still warm 29.1°C (84.4°F), closely related to the 26.8°C (80.2°F) observed in November. During December, Recreio dos Bandeirantes experiences a consistent low-temperature average of 23°C (73.4°F).

Heat index

The average heat index in December is estimated at a torrid 35°C (95°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in December is 81%.

Rainfall

In Recreio dos Bandeirantes, during December, the rain falls for 18.1 days and regularly aggregates up to 67mm (2.64") of precipitation. Throughout the year, there are 172 rainfall days, and 543mm (21.38") of precipitation is accumulated.

Daylight

With an average of 13h and 30min of daylight, December has the longest days of the year in Recreio dos Bandeirantes.
On the first day of the month, sunrise is at 04:59 and sunset at 18:26. On the last day of December, in Recreio dos Bandeirantes, sunrise is at 05:11 and sunset at 18:42 -03.

Sunshine

In Recreio dos Bandeirantes, the average sunshine in December is 7.9h.

UV index

The months with the highest UV index in Recreio dos Bandeirantes are January and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during December leads to these instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.