December weather forecast
Rafael Fernandes, Brazil

The first month of the summer, December, is also a hot month in Rafael Fernandes, Brazil, with an average temperature varying between 23.3°C (73.9°F) and 34°C (93.2°F).

Temperature

The onset of December notes an average high-temperature of a still tropical 34°C (93.2°F), subtly shifted from November's 34.5°C (94.1°F). During December, Rafael Fernandes experiences an average low-temperature of 23.3°C (73.9°F) at night.

Heat index

The heat index for December is evaluated at a sweltering 39°C (102.2°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. 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 natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Rafael Fernandes, Brazil, the average relative humidity in December is 52%.

Rainfall

In Rafael Fernandes, Brazil, during December, the rain falls for 12.2 days and regularly aggregates up to 35mm (1.38") of precipitation. In Rafael Fernandes, during the entire year, the rain falls for 161.9 days and collects up to 582mm (22.91") of precipitation.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year in Rafael Fernandes.
On the first day of the month, sunrise is at 05:08 and sunset at 17:35. On the last day of December, in Rafael Fernandes, sunrise is at 05:21 and sunset at 17:50 -03.

Sunshine

In December, the average sunshine in Rafael Fernandes is 9.1h.

UV index

January through March, August through December, with an average maximum UV index of 7, are months with the highest UV index in Rafael Fernandes. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 7 during December morphs into the following directions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.