December weather forecast
Itapura, Brazil

The first month of the summer, December, is also a hot month in Itapura, Brazil, with temperature in the range of an average high of 31°C (87.8°F) and an average low of 22.3°C (72.1°F).

Temperature

The average high-temperature in December, at a still tropical 31°C (87.8°F), reveals a modest deviation from November's 31.7°C (89.1°F). During the month of December, Itapura experiences a steady low-temperature average of 22.3°C (72.1°F).

Heat index

The heat index for December is appraised at an extremely hot 40°C (104°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. 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 Itapura, the average relative humidity in December is 77%.

Rainfall

In Itapura, Brazil, during December, the rain falls for 25.4 days and regularly aggregates up to 175mm (6.89") of precipitation. In Itapura, during the entire year, the rain falls for 190.1 days and collects up to 1155mm (45.47") of precipitation.

Daylight

The month with the longest days is December, with an average of 13h and 24min of daylight.
On the first day of December, sunrise is at 05:36 and sunset at 18:54. On the last day of the month, sunrise is at 05:48 and sunset at 19:10 -03.

Sunshine

In December, the average sunshine is 9.4h.

UV index

In Itapura, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 6 during December leads to these instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.