December weather forecast
Bertolínia, Brazil

December, the first month of the summer in Bertolínia, is also a hot month, with an average temperature ranging between max 33.2°C (91.8°F) and min 23.8°C (74.8°F).

Temperature

The shift into December uncovers an average high-temperature of a still hot 33.2°C (91.8°F), subtly different from the previous month. An average low-temperature of 23.8°C (74.8°F) marks the month of December in Bertolínia, Brazil.

Heat index

The heat index value during December is appraised at a blistering 42°C (107.6°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Bertolínia, the average relative humidity in December is 64%.

Rainfall

In Bertolínia, in December, it is raining for 18.5 days, with typically 65mm (2.56") of accumulated precipitation. In Bertolínia, during the entire year, the rain falls for 157.4 days and collects up to 636mm (25.04") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 36min of daylight.
On the first day of December in Bertolínia, sunrise is at 05:28 and sunset at 18:01. On the last day of the month, sunrise is at 05:42 and sunset at 18:15 -03.

Sunshine

In December, the average sunshine is 9.1h.

UV index

The months with the lowest UV index are January through August, October through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, a daily UV index of 7 turns into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.