December weather forecastNova Soure, Brazil

Weather in December

December, the first month of the summer in Nova Soure, is still a tropical month, with an average temperature fluctuating between 33.2°C (91.8°F) and 21.5°C (70.7°F).

Temperature

Nova Soure's weather in December indicates an average high-temperature of a still hot 33.2°C (91.8°F), nearly consistent with the 32.9°C (91.2°F) of November. December nights in Nova Soure experience a consistent temperature drop to an agreeable 21.5°C (70.7°F).

Heat index

Throughout December, the heat index is appraised at an extremely hot 42°C (107.6°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

November and December, with an average relative humidity of 65%, are the least humid months.

Rainfall

In December, in Nova Soure, the rain falls for 9.1 days. Throughout December, 29mm (1.14") of precipitation is accumulated. Throughout the year, in Nova Soure, there are 145.3 rainfall days, and 309mm (12.17") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 48min of daylight.
On the first day of December in Nova Soure, sunrise is at 05:01 and sunset at 17:45. On the last day of the month, sunrise is at 05:14 and sunset at 18:00 -03.

Sunshine

The average sunshine in December in Nova Soure is 7.9h.

UV index

The months with the highest UV index in Nova Soure are January through March, October through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 7 during December translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Boost your sun resistance with garments that are densely woven yet spacious.