December weather forecast
Coivaras, Brazil

The first month of the summer, December, is also a hot month in Coivaras, Brazil, with an average temperature varying between 33.8°C (92.8°F) and 23.9°C (75°F).

Temperature

The high-temperature average in December for Coivaras is a hot 33.8°C (92.8°F), staying closely aligned with November's conditions. Throughout the month of December, the nighttime temperature dips to an average of 23.9°C (75°F).

Heat index

December's heat index is estimated at a blisteringly hot 43°C (109.4°F). Caution: Heat cramps along with heat exhaustion are expected. Sustained activity could lead to heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to 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.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In Coivaras, the average relative humidity in December is 64%.

Rainfall

In Coivaras, in December, during 20 rainfall days, 124mm (4.88") of precipitation is typically accumulated. In Coivaras, during the entire year, the rain falls for 220.8 days and collects up to 1560mm (61.42") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 24min of daylight.
On the first day of December in Coivaras, Brazil, sunrise is at 05:26 and sunset at 17:50. On the last day of the month, sunrise is at 05:39 and sunset at 18:04 -03.

Sunshine

In December, the average sunshine in Coivaras, Brazil, is 8.4h.

UV index

In Coivaras, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 7 in December translates into this advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.