December weather forecast
Jacundá, Brazil

December, the first month of the summer in Jacundá, is also a hot month, with an average temperature varying between 31°C (87.8°F) and 22.9°C (73.2°F).

Temperature

The shift into December uncovers an average high-temperature of a still tropical 31°C (87.8°F), subtly different from the previous month. Jacundá records an average low of 22.9°C (73.2°F) throughout the nights in December.

Heat index

The heat index in December is evaluated at a blistering 42°C (107.6°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Jacundá, the average relative humidity in December is 83%.

Rainfall

In Jacundá, Brazil, during December, the rain falls for 28.7 days and regularly aggregates up to 254mm (10") of precipitation. In Jacundá, during the entire year, the rain falls for 271.9 days and collects up to 1921mm (75.63") of precipitation.

Daylight

With an average of 12h and 24min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:54 and sunset at 18:16. On the last day of December, sunrise is at 06:08 and sunset at 18:31 -03.

Sunshine

In December, the average sunshine is 8h.

UV index

February through May, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 6 in December translates into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Enhance your sun protection with tightly woven, yet airy clothing.