December weather forecast
Itaúna do Sul, Brazil

The first month of the summer, December, is still a warm month in Itaúna do Sul, Brazil, with an average temperature varying between 29.8°C (85.6°F) and 20.6°C (69.1°F).

Temperature

The initiation of December sees an average high-temperature of a warm 29.8°C (85.6°F), showing minor variations from the previous month. An average nighttime temperature of 20.6°C (69.1°F) is noted during the month of December.

Heat index

December's average heat index is calculated to be a fiery hot 37°C (98.6°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In December, the average relative humidity in Itaúna do Sul is 80%.

Rainfall

In Itaúna do Sul, during December, the rain falls for 24.7 days and regularly aggregates up to 173mm (6.81") of precipitation. Throughout the year, in Itaúna do Sul, there are 188.5 rainfall days, and 1243mm (48.94") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 13h and 30min of daylight.
On the first day of the month, sunrise is at 05:37 and sunset at 19:03. On the last day of December, in Itaúna do Sul, Brazil, sunrise is at 05:49 and sunset at 19:19 -03.

Sunshine

In December, the average sunshine in Itaúna do Sul, Brazil, is 8h.

UV index

January through March, August through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 6 translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.