December weather forecast
Caçu, Brazil

The first month of the summer, December, is also a moderately hot month in Caçu, Brazil, with an average temperature fluctuating between 20.7°C (69.3°F) and 28.9°C (84°F).

Temperature

As Caçu, Brazil, welcomes December, the average high-temperature records at a still moderately hot 28.9°C (84°F), marking an insignificant deviation from the prior month. During December, Caçu's temperature averages to a pleasant 20.7°C (69.3°F) at night.

Heat index

Throughout December, the heat index is estimated at a torrid 35°C (95°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Caçu, the average relative humidity in December is 84%.

Rainfall

December is the month with the most rainfall. Rain falls for 28.6 days and accumulates 206mm (8.11") of precipitation.

Daylight

The month with the longest days in Caçu is December, with an average of 13h and 12min of daylight.
On the first day of the month, sunrise is at 05:38 and sunset at 18:48. On the last day of December, in Caçu, sunrise is at 05:51 and sunset at 19:04 -03.

Sunshine

In December, the average sunshine is 7.4h.

UV index

In December, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. 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. Experience reduced UV exposure by about half when donning a wide-brim hat.