December weather forecastParque Piaui, Brazil

Weather in December

December, the first month of the summer in Parque Piaui, is also a hot month, with an average temperature fluctuating between 33.5°C (92.3°F) and 23.6°C (74.5°F).

Temperature

The onset of December notes an average high-temperature of a tropical 33.5°C (92.3°F), subtly shifted from November's 35.2°C (95.4°F). Nighttime temperature in Parque Piaui experiences an average drop to a moderately hot 23.6°C (74.5°F) in December.

Heat index

December's average heat index is estimated at a blistering 44°C (111.2°F). Guard: Heat exhaustion and heat cramps are foreseeable. Prolonged effort may bring about heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In December, the average relative humidity in Parque Piaui is 67%.

Rainfall

In Parque Piaui, during December, the rain falls for 21.7 days and regularly aggregates up to 115mm (4.53") of precipitation. In Parque Piaui, during the entire year, the rain falls for 207.4 days and collects up to 1348mm (53.07") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 24min of daylight.
On the first day of the month, sunrise is at 05:28 and sunset at 17:52. On the last day of December, in Parque Piaui, Brazil, sunrise is at 05:41 and sunset at 18:06 -03.

Sunshine

In December, the average sunshine is 8.7h.

UV index

The months with the highest UV index are January, March through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 7 during December, leads to the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.