December weather forecast
São João dos Patos, Brazil

The first month of the summer, December, is still a tropical month in São João dos Patos, Brazil, with an average temperature varying between 21.8°C (71.2°F) and 31.2°C (88.2°F).

Temperature

The shift into December reveals an average high-temperature of a still hot 31.2°C (88.2°F), closely mirroring November's climate. An average low-temperature of 21.8°C (71.2°F) is noted during the nights in December in São João dos Patos, Brazil.

Heat index

The heat index value for December is evaluated at a blisteringly hot 40°C (104°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Heat index evaluations are typically in the context of light winds and shaded environments. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in December in São João dos Patos is 76%.

Rainfall

In São João dos Patos, in December, it is raining for 22.5 days, with typically 89mm (3.5") of accumulated precipitation. Throughout the year, in São João dos Patos, Brazil, there are 201.9 rainfall days, and 938mm (36.93") of precipitation is accumulated.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year in São João dos Patos, Brazil.
On the first day of the month, sunrise is at 05:29 and sunset at 17:58. On the last day of December, sunrise is at 05:43 and sunset at 18:12 -03.

Sunshine

In December, the average sunshine is 8.4h.

UV index

The months with the lowest UV index in São João dos Patos are January through May and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 6 in December translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.