December weather forecast
Presidencia Roca, Argentina

The first month of the summer, December, is still a tropical month in Presidencia Roca, Argentina, with an average temperature fluctuating between 33°C (91.4°F) and 20.8°C (69.4°F).

Temperature

Presidencia Roca's weather in December displays an average high-temperature of a still tropical 33°C (91.4°F), showing minor disparity from November's 30.7°C (87.3°F). With the onset of night in December, Presidencia Roca reveals a significant decrease in temperature, averaging at a pleasant 20.8°C (69.4°F).

Heat index

The average heat index in December is calculated to be a blisteringly hot 41°C (105.8°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in December is 65%.

Rainfall

In Presidencia Roca, Argentina, during December, the rain falls for 12.5 days and regularly aggregates up to 68mm (2.68") of precipitation. Throughout the year, in Presidencia Roca, there are 121 rainfall days, and 618mm (24.33") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 13h and 42min of daylight.
On the first day of the month, sunrise is at 05:57 and sunset at 19:37. On the last day of December, in Presidencia Roca, sunrise is at 06:09 and sunset at 19:54 -03.

Sunshine

In Presidencia Roca, the average sunshine in December is 8.7h.

UV index

The months with the highest UV index in Presidencia Roca 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 vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 7 in December leads to these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.