December weather forecast
Dourados, Brazil

The first month of the summer, December, is still a tropical month in Dourados, Brazil, with an average temperature fluctuating between 21°C (69.8°F) and 30.8°C (87.4°F).

Temperature

December denotes a minimal variation in the average high-temperature to a still tropical 30.8°C (87.4°F) from November's 31°C (87.8°F). Dourados's average low-temperature is measured at an agreeable 21°C (69.8°F) during December.

Heat index

In December, the heat index is estimated at a blistering 40°C (104°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Heat index determinations are made taking into account the shade and light air movements. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Dourados, in December, it is raining for 24.1 days, with typically 137mm (5.39") of accumulated precipitation. In Dourados, during the entire year, the rain falls for 192.3 days and collects up to 1062mm (41.81") of precipitation.

Daylight

With an average of 13h and 30min of daylight, December has the longest days of the year.
On the first day of December in Dourados, Brazil, sunrise is at 04:46 and sunset at 18:10. On the last day of the month, sunrise is at 04:58 and sunset at 18:26 -04.

Sunshine

In Dourados, the average sunshine in December is 9.5h.

UV index

January through April, July through December, with an average maximum UV index of 6, are months with the highest UV index in Dourados. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 6 in December transforms into this advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.