December weather forecastPirapó, Brazil

Weather in December

December, the first month of the summer in Pirapó, is a tropical month, with an average temperature ranging between min 19.2°C (66.6°F) and max 30.5°C (86.9°F).

Temperature

The beginning of December reveals an average high-temperature of a tropical 30.5°C (86.9°F), showing minimal deviation from the previous month. In Pirapó, December nights witness a steady temperature drop to a comfortable 19.2°C (66.6°F).

Heat index

In December, the heat index is estimated at a torrid 37°C (98.6°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The least humid month is December, with an average relative humidity of 71%.

Rainfall

In Pirapó, during December, the rain falls for 16.5 days and regularly aggregates up to 106mm (4.17") of precipitation. Throughout the year, in Pirapó, there are 155.2 rainfall days, and 1071mm (42.17") of precipitation is accumulated.

Daylight

With an average of 13h and 54min of daylight, December has the longest days of the year in Pirapó.
On the first day of December in Pirapó, sunrise is at 05:36 and sunset at 19:23. On the last day of the month, sunrise is at 05:47 and sunset at 19:40 -03.

Sunshine

In December, the average sunshine in Pirapó, Brazil, is 8.7h.

UV index

The month with the highest UV index is December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 7 in December translates into the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.