December weather forecastNovais, Brazil

Weather in December

December, the first month of the summer in Novais, is also a moderately hot month, with an average temperature varying between 21°C (69.8°F) and 29.4°C (84.9°F).

Temperature

With December's arrival, Novais notes an average high-temperature of a still moderately hot 29.4°C (84.9°F), closely following the trend of the preceding month. An average low-temperature of 21°C (69.8°F) is noted during the nights in December.

Heat index

For most parts of December, the heat index is calculated to be a sweltering 36°C (96.8°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for 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.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In December, the average relative humidity in Novais is 80%.

Rainfall

In Novais, in December, during 27.7 rainfall days, 183mm (7.2") of precipitation is typically accumulated. In Novais, Brazil, during the entire year, the rain falls for 204.1 days and collects up to 1207mm (47.52") of precipitation.

Daylight

With an average of 13h and 24min of daylight, December has the longest days of the year.
On the first day of December in Novais, Brazil, sunrise is at 05:25 and sunset at 18:44. On the last day of the month, sunrise is at 05:37 and sunset at 19:00 -03.

Sunshine

The average sunshine in December is 7.6h.

UV index

The months with the highest UV index are January through April, June through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 6 during December translates into these guidelines:
Guard oneself from overexposure. Defence against sun injury is vital. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.