December weather forecast
Chapadinha, Brazil

December, the first month of the summer in Chapadinha, is still a tropical month, with an average temperature ranging between max 33.3°C (91.9°F) and min 23°C (73.4°F).

Temperature

The shift into December uncovers an average high-temperature of a hot 33.3°C (91.9°F), subtly different from the previous month. During December, the average low-temperature in Chapadinha is a moderately hot 23°C (73.4°F).

Heat index

The average heat index in December is estimated at a life-threatening hot 46°C (114.8°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In December, the average relative humidity in Chapadinha, Brazil, is 74%.

Rainfall

In Chapadinha, Brazil, in December, during 21.5 rainfall days, 95mm (3.74") of precipitation is typically accumulated. Throughout the year, in Chapadinha, Brazil, there are 245.1 rainfall days, and 1260mm (49.61") of precipitation is accumulated.

Daylight

With an average of 12h and 18min of daylight, December has the longest days of the year in Chapadinha.
On the first day of the month, sunrise is at 05:32 and sunset at 17:52. On the last day of December, in Chapadinha, sunrise is at 05:46 and sunset at 18:06 -03.

Sunshine

The average sunshine in December in Chapadinha is 8.1h.

UV index

January through June and December, with an average maximum UV index of 6, are months with the lowest UV index in Chapadinha. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 6 in December translates into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.