December weather forecast
Passagem Franca, Brazil

The first month of the summer, December, is also a hot month in Passagem Franca, Brazil, with an average temperature fluctuating between 31.2°C (88.2°F) and 21.8°C (71.2°F).

Temperature

Passagem Franca experiences a recorded average high-temperature of a still tropical 31.2°C (88.2°F) in December, closely aligned with November's 32.8°C (91°F). Passagem Franca observes an average nighttime temperature of 21.8°C (71.2°F) during December.

Heat index

The average heat index in December is calculated to be a scorching 40°C (104°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In December, the average relative humidity in Passagem Franca is 76%.

Rainfall

In December, the rain falls for 22.5 days. Throughout December, 89mm (3.5") of precipitation is accumulated. In Passagem Franca, during the entire year, the rain falls for 201.9 days and collects up to 938mm (36.93") of precipitation.

Daylight

December has the longest days of the year in Passagem Franca, with an average of 12h and 30min of daylight.
On the first day of December in Passagem Franca, sunrise is at 05:30 and sunset at 17:58. On the last day of the month, sunrise is at 05:44 and sunset at 18:12 -03.

Sunshine

In Passagem Franca, Brazil, the average sunshine in December is 8.4h.

UV index

The months with the lowest UV index are January through May and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the UV index of 6 transforms into the following advice:
Avert overexposure. Light-skinned people might experience burning 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. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.