December weather forecastPedranópolis, Brazil

Weather in December

December, the first month of the summer in Pedranópolis, is still a tropical month, with an average temperature fluctuating between 30.1°C (86.2°F) and 21.4°C (70.5°F).

Temperature

December's arrival shows an average high-temperature of a still tropical 30.1°C (86.2°F), hardly different from the previous month. In December, Pedranópolis's temperature tends to fall to an average low of 21.4°C (70.5°F) during the night.

Heat index

For most parts of December, the heat index is estimated at a very hot 38°C (100.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict 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. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. 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 absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The average relative humidity in December is 80%.

Rainfall

In Pedranópolis, during December, the rain falls for 28 days and regularly aggregates up to 203mm (7.99") of precipitation. Throughout the year, there are 207.2 rainfall days, and 1290mm (50.79") of precipitation is accumulated.

Daylight

December has the longest days of the year in Pedranópolis, with an average of 13h and 18min of daylight.
On the first day of December, sunrise is at 05:31 and sunset at 18:47. On the last day of the month, sunrise is at 05:43 and sunset at 19:03 -03.

Sunshine

In December, the average sunshine is 7.8h.

UV index

January through July, September through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.