December weather forecast
Azul, Argentina

December marks the start of summer in Azul, characterized by highs of 28.7°C (83.7°F) and remarkably low pressure readings. The city experiences the sunniest time of the year, with sunlight illuminating the skyline for an average of 11.2 hours per day. Christmas celebrations bring out an array of lights making the city picturesque. December remains comfortably warm, making it a festive month to enjoy outdoor activities and events. Despite the summer heat, an occasional cool breeze from the cool South Atlantic Ocean provides respite to locals and tourists alike.

Temperature

The start of December is characterized by a subtle increase in the average high-temperature, transitioning from a moderately hot 24.2°C (75.6°F) in November to a still warm 28.7°C (83.7°F). Nightly average temperatures in December reveal a significant dip from daytime highs, registering a consistent a moderate 13.5°C (56.3°F).

Heat index

The heat index for December is calculated to be a hot 30°C (86°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

In December, the average relative humidity in Azul is 55%.

Rainfall

In Azul, during December, the rain falls for 9.8 days and regularly aggregates up to 44mm (1.73") of precipitation. Throughout the year, in Azul, Argentina, there are 106.6 rainfall days, and 511mm (20.12") of precipitation is accumulated.

Snowfall

January through June, August through December are months without snowfall.

Daylight

With an average of 14h and 36min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:33 and sunset at 20:03. On the last day of the month, sunrise is at 05:43 and sunset at 20:21 -03.

Sunshine

December has the most sunshine of the year in Azul, with an average of 11.2h of sunshine.

UV index

January, February and December, with an average maximum UV index of 6, are months with the highest UV index in Azul. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 6 transforms into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.