December weather forecast
Sol de Julio, Argentina

The first month of the summer, December, is also a hot month in Sol de Julio, Argentina, with an average temperature fluctuating between 32.8°C (91°F) and 20.6°C (69.1°F).

Temperature

The shift from November to December is characterized by an average high-temperature of a still hot 32.8°C (91°F), not significantly different from the 30.7°C (87.3°F) of November. The nighttime average for Sol de Julio in December plummets considerably from its daytime counterpart, resting at an agreeable 20.6°C (69.1°F).

Heat index

In December, the heat index is computed to be a sweltering 38°C (100.4°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. 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 'felt air temperature' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In December, the average relative humidity is 58%.

Rainfall

In December, the rain falls for 11.5 days. Throughout December, 76mm (2.99") of precipitation is accumulated. Throughout the year, there are 96.4 rainfall days, and 504mm (19.84") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 14h and 0min of daylight.
On the first day of December, sunrise is at 06:05 and sunset at 20:00. On the last day of the month, sunrise is at 06:16 and sunset at 20:17 -03.

Sunshine

The average sunshine in December is 8.8h.

UV index

The months with the highest UV index are January and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: During December, 7 as the daily maximum UV index converts into the following advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.