December weather forecastOlivedos, Brazil

Weather in December

December, the first month of the summer in Olivedos, is still a hot month, with temperature in the range of an average low of 21.3°C (70.3°F) and an average high of 30.7°C (87.3°F).

Temperature

Entering December, Olivedos's average high-temperature reads a still hot 30.7°C (87.3°F), indicating a close resemblance to the previous month's climate. Olivedos's nights in December experience an average temperature drop to an agreeable 21.3°C (70.3°F).

Heat index

For December, the heat index is evaluated at a fiery hot 37°C (98.6°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. 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 essentially critical for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The months with the lowest humidity are November and December, with an average relative humidity of 71%.

Rainfall

In December, in Olivedos, the rain falls for 15.3 days. Throughout December, 20mm (0.79") of precipitation is accumulated. Throughout the year, there are 212.6 rainfall days, and 486mm (19.13") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 04:59 and sunset at 17:29. On the last day of December, in Olivedos, sunrise is at 05:12 and sunset at 17:43 -03.

Sunshine

The average sunshine in December in Olivedos is 6.9h.

UV index

The months with the highest UV index are January through June, August through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: An average maximum UV index of 6 in December leads to these recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.