December weather forecast
Itarantim, Brazil

The first month of the summer, December, is also a moderately hot month in Itarantim, Brazil, with an average temperature ranging between min 19.1°C (66.4°F) and max 28.8°C (83.8°F).

Temperature

Itarantim, Brazil, marks the onset of December with an average high-temperature of a still moderately hot 28.8°C (83.8°F), a subtle shift from November's 28°C (82.4°F). During December, Itarantim witnesses a consistent average low-temperature of 19.1°C (66.4°F).

Heat index

During December, the heat index is calculated to be a fiery hot 35°C (95°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. 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', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in December is 84%.

Rainfall

In Itarantim, during December, the rain falls for 17.3 days and regularly aggregates up to 81mm (3.19") of precipitation. Throughout the year, in Itarantim, Brazil, there are 209.2 rainfall days, and 561mm (22.09") of precipitation is accumulated.

Daylight

The month with the longest days in Itarantim is December, with an average of 13h and 0min of daylight.
On the first day of December, sunrise is at 04:59 and sunset at 17:59. On the last day of the month, sunrise is at 05:12 and sunset at 18:14 -03.

Sunshine

In December, the average sunshine in Itarantim, Brazil, is 8h.

UV index

January through April, August through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.