December weather forecastGurupá, Brazil

Weather in December

December, the first month of the summer in Gurupá, is still a tropical month, with an average temperature ranging between min 22.9°C (73.2°F) and max 32.8°C (91°F).

Temperature

December notes an average high-temperature of a still hot 32.8°C (91°F), subtly differing from November's 34.7°C (94.5°F). In December, the average low-temperature records at a pleasant 22.9°C (73.2°F) during the nights.

Heat index

The average heat index in December is estimated at a life-threatening hot 47°C (116.6°F). Stay mindful: Heat exhaustion and heat cramps are likely. Heatstroke could follow extended physical effort.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In Gurupá, the average relative humidity in December is 79%.

Rainfall

In Gurupá, in December, it is raining for 25.5 days, with typically 140mm (5.51") of accumulated precipitation. Throughout the year, there are 282.9 rainfall days, and 1449mm (57.05") of precipitation is accumulated.

Daylight

With an average of 12h and 12min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 06:09 and sunset at 18:21. On the last day of the month, sunrise is at 06:23 and sunset at 18:35 -03.

Sunshine

In December, the average sunshine in Gurupá is 6.9h.

UV index

The months with the lowest UV index are January through April and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index, 6 during December, leads to the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.