December weather forecast
Ibirá, Brazil

December, the first month of the summer in Ibirá, is also a moderately hot month, with an average temperature fluctuating between 21°C (69.8°F) and 29.4°C (84.9°F).

Temperature

December's beginning signals an average high-temperature of a still moderately hot 29.4°C (84.9°F), barely different from November's 29.9°C (85.8°F). Throughout the month of December, Ibirá expects an average low of 21°C (69.8°F).

Heat index

December's mean heat index is appraised at a very hot 36°C (96.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in December is 80%.

Rainfall

In Ibirá, in December, it is raining for 27.7 days, with typically 183mm (7.2") of accumulated precipitation. Throughout the year, in Ibirá, there are 204.1 rainfall days, and 1207mm (47.52") of precipitation is accumulated.

Daylight

The month with the longest days in Ibirá, Brazil, is December, with an average of 13h and 24min of daylight.
On the first day of December in Ibirá, sunrise is at 05:26 and sunset at 18:45. On the last day of the month, sunrise is at 05:38 and sunset at 19:02 -03.

Sunshine

The average sunshine in December in Ibirá is 7.6h.

UV index

The months with the highest UV index in Ibirá are January through April, June through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In December, the maximum UV index of 6 translates into these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.