December weather forecast
Naviraí, Brazil

December, the first month of the summer in Naviraí, is also a hot month, with an average temperature fluctuating between 21.2°C (70.2°F) and 30.4°C (86.7°F).

Temperature

With the advent of December, Naviraí experiences an average high-temperature of a still tropical 30.4°C (86.7°F), mirroring a close resemblance to the previous month. Naviraí's average low-temperature is measured at a pleasant 21.2°C (70.2°F) during December.

Heat index

For December, the heat index is appraised at a very hot 39°C (102.2°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Heat index details are generally centered around shaded locations and a mild breeze. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. 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 highly critical to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Naviraí, the average relative humidity in December is 79%.

Rainfall

The month with the most rainfall in Naviraí is December, when the rain falls for 21.7 days and typically aggregates up to 133mm (5.24") of precipitation.

Daylight

The month with the longest days is December, with an average of 13h and 30min of daylight.
On the first day of December in Naviraí, sunrise is at 04:42 and sunset at 18:09. On the last day of the month, sunrise is at 04:54 and sunset at 18:25 -04.

Sunshine

The average sunshine in December in Naviraí is 10h.

UV index

The months with the highest UV index in Naviraí are January through March, August through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 6 transforms into these recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. 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. Opt for tightly woven and loose clothing to enhance protection from the Sun.