December weather forecastPirapemas, Brazil

Weather in December

December, the first month of the summer in Pirapemas, is also a hot month, with an average temperature varying between 23.2°C (73.8°F) and 32.4°C (90.3°F).

Temperature

Shifting into December, Pirapemas records an average high-temperature of a still tropical 32.4°C (90.3°F), presenting minor fluctuations compared to the previous month. December nights observe an average temperature dip to a warm 23.2°C (73.8°F).

Heat index

The average heat index in December is calculated to be a blazing hot 45°C (113°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In Pirapemas, the average relative humidity in December is 78%.

Rainfall

In Pirapemas, Brazil, in December, it is raining for 26.8 days, with typically 122mm (4.8") of accumulated precipitation. Throughout the year, there are 258.8 rainfall days, and 1055mm (41.54") of precipitation is accumulated.

Daylight

December has the longest days of the year in Pirapemas, with an average of 12h and 18min of daylight.
On the first day of December, sunrise is at 05:36 and sunset at 17:55. On the last day of the month, sunrise is at 05:50 and sunset at 18:10 -03.

Sunshine

In December, the average sunshine is 7.6h.

UV index

The months with the lowest UV index in Pirapemas are January through April, June and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 6 suggests these recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.