December weather forecast
Uauá, Brazil

December, the first month of the summer in Uauá, is still a hot month, with an average temperature varying between 20.5°C (68.9°F) and 32.3°C (90.1°F).

Temperature

December is marked by an average high-temperature of a still tropical 32.3°C (90.1°F), almost identical to the preceding month. During December, the nighttime temperature averages to an agreeable 20.5°C (68.9°F).

Heat index

For most parts of December, the heat index is calculated to be a sweltering 39°C (102.2°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In Uauá, the average relative humidity in December is 65%.

Rainfall

In Uauá, in December, it is raining for 13.3 days, with typically 53mm (2.09") of accumulated precipitation. In Uauá, during the entire year, the rain falls for 140.9 days and collects up to 380mm (14.96") of precipitation.

Daylight

With an average of 12h and 42min of daylight, December has the longest days of the year in Uauá.
On the first day of the month, sunrise is at 05:07 and sunset at 17:46. On the last day of December, sunrise is at 05:20 and sunset at 18:01 -03.

Sunshine

In Uauá, the average sunshine in December is 7.9h.

UV index

January through March, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, an average UV index of 7 transforms into the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.