December weather forecastLa Vicuña, Argentina

Weather in December

December, the first month of the summer in La Vicuña, is still a tropical month, with an average temperature varying between 32.7°C (90.9°F) and 20.6°C (69.1°F).

Temperature

December notes an average high-temperature of a still tropical 32.7°C (90.9°F), subtly differing from November's 30.5°C (86.9°F). December nights present a stark temperature decrease to an agreeable 20.6°C (69.1°F).

Heat index

The heat index value for December is evaluated at an extremely hot 40°C (104°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

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

Rainfall

In December, in La Vicuña, the rain falls for 11.5 days. Throughout December, 87mm (3.43") of precipitation is accumulated. Throughout the year, in La Vicuña, there are 118 rainfall days, and 656mm (25.83") 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 05:55 and sunset at 19:42. On the last day of December, in La Vicuña, Argentina, sunrise is at 06:06 and sunset at 19:59 -03.

Sunshine

The months with the most sunshine are February and December, with an average of 8.9h of sunshine.

UV index

The months with the highest UV index are January, February and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 in December converts into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.