December weather forecast
Carolina, Brazil

The first month of the summer, December, is still a tropical month in Carolina, Brazil, with temperature in the range of an average high of 31°C (87.8°F) and an average low of 22.6°C (72.7°F).

Temperature

December's beginning signals an average high-temperature of a still hot 31°C (87.8°F), barely different from November's 32.3°C (90.1°F). In the month of December, the average temperature dips to an agreeable 22.6°C (72.7°F) during the night.

Heat index

December's heat index is computed to be a blistering 40°C (104°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In December, the average relative humidity is 78%.

Rainfall

In December, in Carolina, the rain falls for 27.9 days. Throughout December, 133mm (5.24") of precipitation is accumulated. In Carolina, Brazil, during the entire year, the rain falls for 220.5 days and collects up to 1134mm (44.65") of precipitation.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year in Carolina.
On the first day of the month, sunrise is at 05:43 and sunset at 18:14. On the last day of December, in Carolina, Brazil, sunrise is at 05:56 and sunset at 18:29 -03.

Sunshine

In December, the average sunshine in Carolina is 8.9h.

UV index

January, April and December, with an average maximum UV index of 6, are months with the lowest UV index in Carolina. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 6 during December translates into the following directions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.