December weather forecast
Água Preta, Brazil

December, the first month of the summer in Água Preta, is still a warm month, with an average temperature ranging between min 21.2°C (70.2°F) and max 29.9°C (85.8°F).

Temperature

The shift from November to December is characterized by an average high-temperature of a still moderately hot 29.9°C (85.8°F), not significantly different from the 29.3°C (84.7°F) of November. Água Preta, during the nights of December, experiences an average temperature drop to a pleasant 21.2°C (70.2°F).

Heat index

Throughout December, the heat index is computed to be a very hot 37°C (98.6°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The least humid month in Água Preta is December, with an average relative humidity of 77%.

Rainfall

The months with the least rainfall are November and December Rain falls for 11.3 days and accumulates 13mm (0.51") of rain.

Daylight

December has the longest days of the year, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 04:53 and sunset at 17:29. On the last day of December, in Água Preta, sunrise is at 05:06 and sunset at 17:44 -03.

Sunshine

The average sunshine in December in Água Preta is 7.1h.

UV index

The months with the highest UV index in Água Preta, Brazil, are January through May, September through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 6 during December translates into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.