December weather forecast
Cerro Azul, Argentina

December, the first month of the summer in Cerro Azul, is a tropical month, with temperature in the range of an average low of 19°C (66.2°F) and an average high of 30.3°C (86.5°F).

Temperature

The onset of December notes an average high-temperature of a hot 30.3°C (86.5°F), subtly shifted from November's 28.7°C (83.7°F). During the month of December, Cerro Azul experiences a steady low-temperature average of 19°C (66.2°F).

Heat index

The heat index for December is evaluated at a fiery hot 37°C (98.6°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The least humid month in Cerro Azul is December, with an average relative humidity of 76%.

Rainfall

In Cerro Azul, Argentina, during December, the rain falls for 17.5 days and regularly aggregates up to 117mm (4.61") of precipitation. Throughout the year, there are 166.5 rainfall days, and 1177mm (46.34") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 13h and 54min of daylight.
On the first day of the month, sunrise is at 05:38 and sunset at 19:24. On the last day of December, sunrise is at 05:49 and sunset at 19:41 -03.

Sunshine

In December, the average sunshine in Cerro Azul is 9.9h.

UV index

The months with the highest UV index are January through March, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a regular UV index of 6 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.