December weather forecast
Acopiara, Brazil

December, the first month of the summer in Acopiara, is still a tropical month, with an average temperature varying between 23°C (73.4°F) and 33.5°C (92.3°F).

Temperature

The advent of December presents an average high-temperature of a still tropical 33.5°C (92.3°F), maintaining a close correlation with the preceding month. During December, the temperature in Acopiara tends to dip to an average of 23°C (73.4°F) at night.

Heat index

December's mean heat index is computed to be a scorching 40°C (104°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Acopiara, the average relative humidity in December is 57%.

Rainfall

In December, the rain falls for 15.5 days. Throughout December, 49mm (1.93") of precipitation is accumulated. Throughout the year, there are 182.9 rainfall days, and 832mm (32.76") of precipitation is accumulated.

Daylight

December has the longest days of the year in Acopiara, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:13 and sunset at 17:40. On the last day of the month, sunrise is at 05:26 and sunset at 17:55 -03.

Sunshine

In December, the average sunshine in Acopiara is 7.7h.

UV index

August through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.