December weather forecast
Sítio do Quinto, Brazil

The first month of the summer, December, is also a hot month in Sítio do Quinto, Brazil, with an average temperature varying between 21.3°C (70.3°F) and 33.2°C (91.8°F).

Temperature

Sítio do Quinto's average high-temperature in December is a still hot 33.2°C (91.8°F), indicating a subtle variation from November. In the month of December, the average temperature dips to an agreeable 21.3°C (70.3°F) during the night.

Heat index

The heat index for December is computed to be an extremely hot 42°C (107.6°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Understand that the heat index values take into account shaded locations and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Sítio do Quinto, the average relative humidity in December is 64%.

Rainfall

In Sítio do Quinto, in December, it is raining for 9.6 days, with typically 34mm (1.34") of accumulated precipitation. Throughout the year, there are 145.6 rainfall days, and 294mm (11.57") of precipitation is accumulated.

Daylight

With an average of 12h and 42min of daylight, December has the longest days of the year.
On the first day of December in Sítio do Quinto, sunrise is at 05:01 and sunset at 17:42. On the last day of the month, sunrise is at 05:14 and sunset at 17:57 -03.

Sunshine

In December, the average sunshine in Sítio do Quinto is 8h.

UV index

The months with the highest UV index in Sítio do Quinto are January through March, October through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 7 in December leads to these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.