December weather forecast
Graça, Brazil

December, the first month of the summer in Graça, is still a tropical month, with an average temperature ranging between min 21.8°C (71.2°F) and max 32.4°C (90.3°F).

Temperature

December registers an average high-temperature of a still tropical 32.4°C (90.3°F), slightly varied from November's 33.5°C (92.3°F). Throughout the month of December, the average temperature in Graça dips to an agreeable 21.8°C (71.2°F) at night.

Heat index

For December, the heat index is estimated at a torrid 39°C (102.2°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Graça, Brazil, the average relative humidity in December is 64%.

Rainfall

In December, in Graça, the rain falls for 13.3 days. Throughout December, 53mm (2.09") of precipitation is accumulated. Throughout the year, there are 200 rainfall days, and 1065mm (41.93") of precipitation is accumulated.

Daylight

With an average of 12h and 24min of daylight, December has the longest days of the year in Graça.
On the first day of the month, sunrise is at 05:22 and sunset at 17:42. On the last day of December, sunrise is at 05:35 and sunset at 17:56 -03.

Sunshine

The average sunshine in December in Graça is 8.2h.

UV index

The months with the highest UV index in Graça are July through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.