December weather forecast
Arapoema, Brazil

December, the first month of the summer in Arapoema, is also a hot month, with an average temperature ranging between max 31.6°C (88.9°F) and min 22.2°C (72°F).

Temperature

As Arapoema welcomes December, the average high-temperature stabilizes at a still tropical 31.6°C (88.9°F), showing little deviation from November's 33°C (91.4°F). Arapoema in December anticipates an average nighttime temperature of 22.2°C (72°F).

Heat index

In December, the average heat index is estimated at a scorching 43°C (109.4°F). Observe: Heat exhaustion and heat cramps are probable. Heatstroke is on the horizon with prolonged exertion.
For clarity, heat index numbers account for light winds and areas under shade. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In Arapoema, Brazil, the average relative humidity in December is 79%.

Rainfall

In December, in Arapoema, the rain falls for 26.8 days. Throughout December, 143mm (5.63") of precipitation is accumulated. Throughout the year, there are 213.3 rainfall days, and 1154mm (45.43") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 36min of daylight.
On the first day of December, sunrise is at 05:49 and sunset at 18:21. On the last day of the month, sunrise is at 06:02 and sunset at 18:36 -03.

Sunshine

In Arapoema, Brazil, the average sunshine in December is 8.8h.

UV index

The months with the lowest UV index are January through April, October and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 6 during December translates into the following directions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.