December weather forecast
Jacupemba, Brazil

December, the first month of the summer in Jacupemba, is still a warm month, with an average temperature ranging between max 29.5°C (85.1°F) and min 21.8°C (71.2°F).

Temperature

Jacupemba's December reports an average high-temperature of a still warm 29.5°C (85.1°F), exhibiting a minor difference from November. Throughout December, Jacupemba registers a consistent average low-temperature of 21.8°C (71.2°F).

Heat index

For most parts of December, the heat index is computed to be a very hot 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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 natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

December is the most humid month in Jacupemba, with an average relative humidity of 83%.

Rainfall

In December, the rain falls for 22.5 days. Throughout December, 140mm (5.51") of precipitation is accumulated. In Jacupemba, during the entire year, the rain falls for 197 days and collects up to 741mm (29.17") of precipitation.

Daylight

December has the longest days of the year in Jacupemba, with an average of 13h and 18min of daylight.
On the first day of December, sunrise is at 04:53 and sunset at 18:06. On the last day of the month, sunrise is at 05:05 and sunset at 18:22 -03.

Sunshine

In December, the average sunshine in Jacupemba is 7.7h.

UV index

The average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 6 in December transforms into this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.