December weather forecast
Santana do Cariri, Brazil

The first month of the summer, December, is still a tropical month in Santana do Cariri, Brazil, with an average temperature ranging between max 31.4°C (88.5°F) and min 20.9°C (69.6°F).

Temperature

Santana do Cariri experiences a subtle adjustment in high-temperatures to a still tropical 31.4°C (88.5°F) with the onset of December, maintaining near parity with November's 32.5°C (90.5°F). During the nights in December, Santana do Cariri observes an average low-temperature of 20.9°C (69.6°F).

Heat index

December's heat index is computed to be a very hot 36°C (96.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Santana do Cariri, the average relative humidity in December is 60%.

Rainfall

In Santana do Cariri, during December, the rain falls for 17 days and regularly aggregates up to 78mm (3.07") of precipitation. In Santana do Cariri, during the entire year, the rain falls for 172.3 days and collects up to 764mm (30.08") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of December in Santana do Cariri, sunrise is at 05:12 and sunset at 17:43. On the last day of the month, sunrise is at 05:26 and sunset at 17:58 -03.

Sunshine

In Santana do Cariri, the average sunshine in December is 8.1h.

UV index

The months with the lowest UV index in Santana do Cariri are January through August and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 6 suggests these recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.