December weather forecastPoloni, Brazil

Weather in December

The first month of the summer, December, is still a warm month in Poloni, Brazil, with an average temperature fluctuating between 21.2°C (70.2°F) and 29.8°C (85.6°F).

Temperature

The shift from November to December is characterized by an average high-temperature of a warm 29.8°C (85.6°F), not significantly different from the 30°C (86°F) of November. Poloni encounters an average low-temperature of 21.2°C (70.2°F) during December nights.

Heat index

December's average heat index is estimated at a torrid 37°C (98.6°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. 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 'apparent temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Poloni, during December, the rain falls for 28.5 days and regularly aggregates up to 201mm (7.91") of precipitation. In Poloni, during the entire year, the rain falls for 208.9 days and collects up to 1257mm (49.49") of precipitation.

Daylight

With an average of 13h and 24min of daylight, December has the longest days of the year in Poloni.
On the first day of December, sunrise is at 05:29 and sunset at 18:47. On the last day of the month, sunrise is at 05:41 and sunset at 19:03 -03.

Sunshine

The average sunshine in December in Poloni is 7.6h.

UV index

The months with the highest UV index are January, March through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 6 in December leads to these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.