December weather forecastPalmácia, Brazil

Weather in December

December, the first month of the summer in Palmácia, is still a hot month, with temperature in the range of an average high of 31.9°C (89.4°F) and an average low of 24.6°C (76.3°F).

Temperature

As Palmácia, Brazil, welcomes December, the average high-temperature records at a still tropical 31.9°C (89.4°F), marking an insignificant deviation from the prior month. Throughout December nights, Palmácia registers an average low-temperature of 24.6°C (76.3°F).

Heat index

The heat index value during December is evaluated at a blistering 40°C (104°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Data suggests that the heat index is set for environments in shade and with a light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The average relative humidity in December in Palmácia is 71%.

Rainfall

In Palmácia, in December, during 13.2 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, there are 183.1 rainfall days, and 511mm (20.12") of precipitation is accumulated.

Daylight

The month with the longest days in Palmácia is December, with an average of 12h and 24min of daylight.
On the first day of December in Palmácia, sunrise is at 05:14 and sunset at 17:35. On the last day of the month, sunrise is at 05:27 and sunset at 17:49 -03.

Sunshine

The average sunshine in December is 7.3h.

UV index

January through March, May through December, with an average maximum UV index of 7, are months with the highest UV index in Palmácia, Brazil. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during December translates into these guidelines:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.