December weather forecast
Bananal, Brazil

December, the first month of the summer in Bananal, is still a warm month, with an average temperature fluctuating between 28.7°C (83.7°F) and 19.3°C (66.7°F).

Temperature

The beginning of December records an average high-temperature of a still moderately hot 28.7°C (83.7°F), almost echoing the conditions of the previous month. Throughout December, Bananal's nights cool down to an average of 19.3°C (66.7°F).

Heat index

The average heat index in December is evaluated at a torrid 35°C (95°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. 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. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In December, the average relative humidity in Bananal is 84%.

Rainfall

In December, in Bananal, the rain falls for 26.4 days. Throughout December, 158mm (6.22") of precipitation is accumulated. Throughout the year, in Bananal, there are 217.8 rainfall days, and 982mm (38.66") of precipitation is accumulated.

Daylight

With an average of 13h and 30min of daylight, December has the longest days of the year in Bananal.
On the first day of December in Bananal, sunrise is at 05:03 and sunset at 18:29. On the last day of the month, sunrise is at 05:15 and sunset at 18:45 -03.

Sunshine

The average sunshine in December in Bananal is 7.7h.

UV index

January through March, August, October and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 in December interprets into the following advice:
Guard oneself from overexposure. Defence against sun injury is vital. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.