December weather forecast
Álvares Machado, Brazil

The first month of the summer, December, is still a tropical month in Álvares Machado, Brazil, with an average temperature fluctuating between 30°C (86°F) and 21.3°C (70.3°F).

Temperature

Álvares Machado's weather in December displays an average high-temperature of a still tropical 30°C (86°F), showing minor disparity from November's 30.5°C (86.9°F). In the month of December, Álvares Machado experiences an average low-temperature of 21.3°C (70.3°F).

Heat index

In December, the average heat index is calculated to be a sweltering 37°C (98.6°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in December in Álvares Machado is 78%.

Rainfall

In Álvares Machado, in December, during 25.8 rainfall days, 168mm (6.61") of precipitation is typically accumulated. Throughout the year, there are 196.8 rainfall days, and 1260mm (49.61") of precipitation is accumulated.

Daylight

The month with the longest days in Álvares Machado is December, with an average of 13h and 30min of daylight.
On the first day of the month, sunrise is at 05:33 and sunset at 18:56. On the last day of December, sunrise is at 05:45 and sunset at 19:12 -03.

Sunshine

In Álvares Machado, the average sunshine in December is 7.8h.

UV index

The months with the highest UV index are January through March, June through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 during December translates into the following directions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.