December weather forecast
Campo Grande, Brazil

The first month of the summer, December, is also a moderately hot month in Campo Grande, Brazil, with an average temperature varying between 21.5°C (70.7°F) and 29.7°C (85.5°F).

Temperature

December observes an average high-temperature of a warm 29.7°C (85.5°F), marking an insignificant difference from November's 30.6°C (87.1°F). Campo Grande experiences an average low-temperature of 21.5°C (70.7°F) in month of December.

Heat index

The heat index for December is evaluated at a sweltering 36°C (96.8°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. 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 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. 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. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in December in Campo Grande is 78%.

Rainfall

The month with the most rainfall in Campo Grande is December, when the rain falls for 24.5 days and typically aggregates up to 138mm (5.43") of precipitation.

Daylight

The month with the longest days is December, with an average of 13h and 24min of daylight.
On the first day of the month, sunrise is at 04:49 and sunset at 18:06. On the last day of December, in Campo Grande, sunrise is at 05:01 and sunset at 18:22 -04.

Sunshine

In December, the average sunshine in Campo Grande is 9.5h.

UV index

The average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 6 in December translates into the following instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.