December weather forecastJundiá, Brazil

Weather in December

The first month of the summer, December, is still a warm month in Jundiá, Brazil, with an average temperature ranging between max 29.9°C (85.8°F) and min 21.2°C (70.2°F).

Temperature

Jundiá indicates an average high-temperature of a still moderately hot 29.9°C (85.8°F) in December, showing minor variation from November's 29.3°C (84.7°F). Throughout the nights in December, an average low-temperature of 21.2°C (70.2°F) is noted.

Heat index

Throughout December, the heat index is calculated to be a fiery hot 37°C (98.6°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Heat index determinations are made taking into account the shade and light air movements. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. 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 hold great significance to children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

December is the least humid month, with an average relative humidity of 77%.

Rainfall

November and December are months with the least rain when the rain falls for 11.3 days and typically aggregates up to 13mm (0.51") of rain.

Daylight

The month with the longest days is December, with an average of 12h and 36min of daylight.
On the first day of December, sunrise is at 04:53 and sunset at 17:29. On the last day of the month, sunrise is at 05:06 and sunset at 17:44 -03.

Sunshine

The average sunshine in December is 7.1h.

UV index

January through May, September through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high daily UV index of 6 during December translates into the following directions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.