December weather forecast
Bauru, Brazil

The first month of the summer, December, is still a warm month in Bauru, Brazil, with temperature in the range of an average high of 29.1°C (84.4°F) and an average low of 19.7°C (67.5°F).

Temperature

December brings a marginal elevation to a still warm 29.1°C (84.4°F) from November's 28.9°C (84°F) in Bauru's average high-temperatures. During December, Bauru's temperature falls to a steady low-temperature average of 19.7°C (67.5°F).

Heat index

During December, the heat index is appraised at a fiery hot 35°C (95°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Bauru, the average relative humidity in December is 81%.

Rainfall

In December, the rain falls for 27.4 days. Throughout December, 191mm (7.52") of precipitation is accumulated. Throughout the year, in Bauru, there are 209.6 rainfall days, and 1278mm (50.31") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 13h and 30min of daylight.
On the first day of the month, sunrise is at 05:23 and sunset at 18:47. On the last day of December, sunrise is at 05:35 and sunset at 19:03 -03.

Sunshine

The average sunshine in December in Bauru is 7.6h.

UV index

January, March, August, October through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 6 in December translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.