December weather forecast
Las Breñas, Argentina

December, the first month of the summer in Las Breñas, is also a hot month, with an average temperature varying between 20.6°C (69.1°F) and 32.7°C (90.9°F).

Temperature

December's beginning signals an average high-temperature of a still tropical 32.7°C (90.9°F), barely different from November's 30.5°C (86.9°F). Las Breñas records a significant temperature drop in December nights, lowering to an average of 20.6°C (69.1°F).

Heat index

Throughout December, the heat index is evaluated at an extremely hot 40°C (104°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in December in Las Breñas is 64%.

Rainfall

In Las Breñas, in December, during 11.5 rainfall days, 87mm (3.43") of precipitation is typically accumulated. Throughout the year, in Las Breñas, there are 118 rainfall days, and 656mm (25.83") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 13h and 48min of daylight.
On the first day of December in Las Breñas, sunrise is at 06:01 and sunset at 19:45. On the last day of the month, sunrise is at 06:13 and sunset at 20:02 -03.

Sunshine

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

UV index

January, February and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, a daily UV index of 7 turns into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.