December weather forecastMarabá, Brazil

Weather in December

December, the first month of the summer in Marabá, is also a hot month, with temperature in the range of an average low of 22.1°C (71.8°F) and an average high of 31.8°C (89.2°F).

Temperature

As Marabá welcomes December, the average high-temperature records at a still hot 31.8°C (89.2°F), marking an insignificant deviation from the prior month. In the month of December, the temperature generally rests at an average low of 22.1°C (71.8°F).

Heat index

For most parts of December, the heat index is calculated to be a blistering 44°C (111.2°F). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Marabá, during December, the rain falls for 28 days and regularly aggregates up to 176mm (6.93") of precipitation. Throughout the year, in Marabá, there are 250.8 rainfall days, and 1478mm (58.19") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 24min of daylight.
On the first day of December in Marabá, sunrise is at 05:53 and sunset at 18:18. On the last day of the month, sunrise is at 06:06 and sunset at 18:32 -03.

Sunshine

In December, the average sunshine in Marabá is 7.8h.

UV index

January through April, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Marabá, Brazil. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 6 in December transforms into the following instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.