December weather forecast
Aragominas, Brazil

The first month of the summer, December, is still a hot month in Aragominas, Brazil, with temperature in the range of an average high of 31°C (87.8°F) and an average low of 22.6°C (72.7°F).

Temperature

December's climate shows a minor adjustment in average high-temperatures to a still hot 31°C (87.8°F) from November's 32.3°C (90.1°F). Aragominas reports an average nighttime low-temperature of 22.6°C (72.7°F) in December.

Heat index

For December, the heat index is estimated at a blistering 40°C (104°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in December is 78%.

Rainfall

In Aragominas, Brazil, in December, during 27.9 rainfall days, 133mm (5.24") of precipitation is typically accumulated. In Aragominas, during the entire year, the rain falls for 220.5 days and collects up to 1134mm (44.65") of precipitation.

Daylight

December has the longest days of the year in Aragominas, Brazil, with an average of 12h and 30min of daylight.
On the first day of December in Aragominas, sunrise is at 05:48 and sunset at 18:18. On the last day of the month, sunrise is at 06:01 and sunset at 18:33 -03.

Sunshine

The average sunshine in December is 8.9h.

UV index

The months with the lowest UV index are January, April and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during December translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.