December weather forecast
Casilda, Argentina

December, the first month of the summer in Casilda, is a hot month, with an average temperature fluctuating between 31.7°C (89.1°F) and 17.8°C (64°F).

Temperature

As November gives way to December, the average high-temperature displays a slight ascent, adjusting from a warm 28.5°C (83.3°F) to a hot 31.7°C (89.1°F). December nights in Casilda are characterized by a significant departure from the daytime highs, dropping to an average temperature of 17.8°C (64°F).

Heat index

The heat index in December is computed to be a very hot 35°C (95°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The human body cools itself through perspiration, as excessive warmth is removed from the body through 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. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The average relative humidity in December is 53%.

Rainfall

December is the month with the most rainfall. Rain falls for 9.3 days and accumulates 73mm (2.87") of precipitation.

Daylight

The month with the longest days is December, with an average of 14h and 18min of daylight.
On the first day of December, sunrise is at 05:48 and sunset at 19:59. On the last day of the month, sunrise is at 05:59 and sunset at 20:16 -03.

Sunshine

The month with the most sunshine is December, with an average of 11.2h of sunshine.

UV index

The average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high daily UV index of 6 during December translates into the following directions:
Deter overexposure. Protecting against the sun's effects is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.