December weather forecast
Petrolândia, Brazil

December, the first month of the summer in Petrolândia, is also a hot month, with an average temperature fluctuating between 22.7°C (72.9°F) and 33.6°C (92.5°F).

Temperature

Petrolândia, Brazil, marks the onset of December with an average high-temperature of a still hot 33.6°C (92.5°F), a subtle shift from November's 34.3°C (93.7°F). In December, Petrolândia experiences an average nighttime temperature of 22.7°C (72.9°F).

Heat index

The heat index value for December is calculated to be a very hot 39°C (102.2°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. 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 'felt air temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In Petrolândia, the average relative humidity in December is 55%.

Rainfall

In Petrolândia, Brazil, in December, during 9.3 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Petrolândia, Brazil, during the entire year, the rain falls for 132.1 days and collects up to 324mm (12.76") of precipitation.

Daylight

The month with the longest days in Petrolândia is December, with an average of 12h and 36min of daylight.
On the first day of December in Petrolândia, sunrise is at 05:03 and sunset at 17:40. On the last day of the month, sunrise is at 05:17 and sunset at 17:55 -03.

Sunshine

In December, the average sunshine in Petrolândia is 9h.

UV index

The months with the highest UV index in Petrolândia are January through March, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 7 in December leads to these recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.