December weather forecastJacaraú, Brazil

Weather in December

The first month of the summer, December, is still a hot month in Jacaraú, Brazil, with an average temperature ranging between min 24°C (75.2°F) and max 30.5°C (86.9°F).

Temperature

Jacaraú, Brazil, sees the arrival of December with an average high-temperature of a still tropical 30.5°C (86.9°F), indicating a subtle variation from November. December nights in Jacaraú observe an average temperature dip to a warm 24°C (75.2°F).

Heat index

The heat index for December is computed to be a fiery hot 37°C (98.6°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Jacaraú, the average relative humidity in December is 72%.

Rainfall

In December, the rain falls for 15.2 days. Throughout December, 18mm (0.71") of precipitation is accumulated. In Jacaraú, Brazil, during the entire year, the rain falls for 199.6 days and collects up to 460mm (18.11") of precipitation.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 04:55 and sunset at 17:24. On the last day of December, sunrise is at 05:09 and sunset at 17:39 -03.

Sunshine

The average sunshine in December in Jacaraú is 7.7h.

UV index

January through March, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in December transforms into the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.