December weather forecastViçosa do Ceará, Brazil

Weather in December

The first month of the summer, December, is also a hot month in Viçosa do Ceará, Brazil, with temperature in the range of an average low of 22.6°C (72.7°F) and an average high of 33°C (91.4°F).

Temperature

Viçosa do Ceará marks the onset of December with an average high-temperature of a still tropical 33°C (91.4°F), subtly divergent from November's 34.2°C (93.6°F). During the month of December, Viçosa do Ceará experiences a steady low-temperature average of 22.6°C (72.7°F).

Heat index

Throughout December, the heat index is calculated to be a blisteringly hot 42°C (107.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In December, the average relative humidity is 66%.

Rainfall

In Viçosa do Ceará, in December, during 15.2 rainfall days, 56mm (2.2") of precipitation is typically accumulated. Throughout the year, in Viçosa do Ceará, there are 206 rainfall days, and 1061mm (41.77") of precipitation is accumulated.

Daylight

The month with the longest days in Viçosa do Ceará is December, with an average of 12h and 18min of daylight.
On the first day of the month, sunrise is at 05:24 and sunset at 17:43. On the last day of December, sunrise is at 05:37 and sunset at 17:57 -03.

Sunshine

The average sunshine in December in Viçosa do Ceará is 8.6h.

UV index

The months with the highest UV index are July through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a regular UV index of 7 translates into these guidelines:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Boost your sun resistance with garments that are densely woven yet spacious.