December weather forecastJacupemba, Brazil

Weather in December

The first month of the summer, December, is also a moderately hot month in Jacupemba, Brazil, with an average temperature ranging between max 29.5°C (85.1°F) and min 21.8°C (71.2°F).

Temperature

Jacupemba, Brazil, registers an average high-temperature of a still moderately hot 29.5°C (85.1°F) with the arrival of December, showing minor deviation from the preceding month. Throughout December, Jacupemba's nights cool down to an average of 21.8°C (71.2°F).

Heat index

During December, the heat index is evaluated at a torrid 37°C (98.6°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. 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 'feels like' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The most humid month in Jacupemba is December, with an average relative humidity of 83%.

Rainfall

In Jacupemba, in December, it is raining for 22.5 days, with typically 140mm (5.51") of accumulated precipitation. In Jacupemba, during the entire year, the rain falls for 197 days and collects up to 741mm (29.17") of precipitation.

Daylight

With an average of 13h and 18min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 04:53 and sunset at 18:06. On the last day of the month, sunrise is at 05:05 and sunset at 18:22 -03.

Sunshine

In December, the average sunshine is 7.7h.

UV index

In December, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 6 translates into these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.