December weather forecastItarema, Brazil

Weather in December

The first month of the summer, December, is still a hot month in Itarema, Brazil, with an average temperature varying between 25.9°C (78.6°F) and 31°C (87.8°F).

Temperature

The arrival of December marks a slight shift to an average high-temperature of a still tropical 31°C (87.8°F) from November's 31.4°C (88.5°F). During the month of December, an average low-temperature of 25.9°C (78.6°F) is recorded in Itarema.

Heat index

December's heat index is appraised at a torrid 38°C (100.4°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. 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 highly critical for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The average relative humidity in December is 72%.

Rainfall

In December, the rain falls for 12.4 days. Throughout December, 27mm (1.06") of precipitation is accumulated. Throughout the year, there are 198.4 rainfall days, and 840mm (33.07") of precipitation is accumulated.

Daylight

The month with the longest days in Itarema is December, with an average of 12h and 18min of daylight.
On the first day of the month, sunrise is at 05:20 and sunset at 17:37. On the last day of December, in Itarema, sunrise is at 05:34 and sunset at 17:51 -03.

Sunshine

In Itarema, Brazil, the average sunshine in December is 7.9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In December, an average UV index of 7 transforms into the following instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.