December weather forecastSimplício Mendes, Brazil

Weather in December

The first month of the summer, December, is also a hot month in Simplício Mendes, Brazil, with an average temperature ranging between max 33.9°C (93°F) and min 23.8°C (74.8°F).

Temperature

December's average high-temperature is a hot 33.9°C (93°F), maintaining a close comparison with November's 35.2°C (95.4°F). Throughout December, Simplício Mendes anticipates an average low-temperature of 23.8°C (74.8°F).

Heat index

The heat index value for December is calculated to be a blisteringly hot 42°C (107.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In Simplício Mendes, the average relative humidity in December is 60%.

Rainfall

In Simplício Mendes, in December, it is raining for 19.5 days, with typically 86mm (3.39") of accumulated precipitation. Throughout the year, there are 159.4 rainfall days, and 844mm (33.23") of precipitation is accumulated.

Daylight

December has the longest days of the year in Simplício Mendes, Brazil, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 05:20 and sunset at 17:53. On the last day of December, in Simplício Mendes, sunrise is at 05:33 and sunset at 18:08 -03.

Sunshine

In Simplício Mendes, the average sunshine in December is 9h.

UV index

In Simplício Mendes, Brazil, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 7 in December translates into the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.