December weather forecast
Itabi, Brazil

December, the first month of the summer in Itabi, is still a tropical month, with an average temperature varying between 31.2°C (88.2°F) and 23.4°C (74.1°F).

Temperature

On the advent of December, Itabi's average high-temperature exhibits a minor adjustment to a still tropical 31.2°C (88.2°F) from November's 30.9°C (87.6°F). In Itabi, the average low-temperature during the month of December is a moderately hot 23.4°C (74.1°F).

Heat index

The heat index in December is evaluated at a torrid 38°C (100.4°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

With an average relative humidity of 71%, December is the least humid month.

Rainfall

In Itabi, during December, the rain falls for 11.9 days and regularly aggregates up to 21mm (0.83") of precipitation. In Itabi, Brazil, during the entire year, the rain falls for 222.9 days and collects up to 509mm (20.04") of precipitation.

Daylight

December has the longest days of the year in Itabi, with an average of 12h and 42min of daylight.
On the first day of December in Itabi, sunrise is at 04:57 and sunset at 17:37. On the last day of the month, sunrise is at 05:10 and sunset at 17:52 -03.

Sunshine

In Itabi, the average sunshine in December is 8.3h.

UV index

The months with the highest UV index in Itabi are January through March, October through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 7 transforms into the following advice:
Deflect overexposure. Sun protection is a necessity. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.