December weather forecast
Alpestre, Brazil

The first month of the summer, December, is still a warm month in Alpestre, Brazil, with temperature in the range of an average low of 18.2°C (64.8°F) and an average high of 29.6°C (85.3°F).

Temperature

The advent of December reveals an average high-temperature of a still moderately hot 29.6°C (85.3°F), showing minimal difference from the prior month. During December, an average low-temperature of 18.2°C (64.8°F) is observed.

Heat index

For most parts of December, the heat index is estimated at a fiery hot 36°C (96.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. 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 extremely significant for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

With an average relative humidity of 78%, December is the least humid month in Alpestre.

Rainfall

In December, in Alpestre, the rain falls for 19.1 days. Throughout December, 114mm (4.49") of precipitation is accumulated. In Alpestre, during the entire year, the rain falls for 185.1 days and collects up to 1259mm (49.57") of precipitation.

Daylight

December has the longest days of the year, with an average of 13h and 48min of daylight.
On the first day of the month, sunrise is at 05:29 and sunset at 19:13. On the last day of December, sunrise is at 05:40 and sunset at 19:30 -03.

Sunshine

November and December, with an average of 8.8h of sunshine, are months with the most sunshine.

UV index

January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: A daily high UV index of 6 in December leads to these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.