December weather forecast
San Juan del Paraná, Paraguay

December, the first month of the summer in San Juan del Paraná, is a tropical month, with temperature in the range of an average high of 31.7°C (89.1°F) and an average low of 20°C (68°F).

Temperature

As San Juan del Paraná welcomes December, the average high-temperature stabilizes at a tropical 31.7°C (89.1°F), showing little deviation from November's 29.6°C (85.3°F). December's average low-temperature reading in San Juan del Paraná, Paraguay, settles at an agreeable 20°C (68°F).

Heat index

Throughout December, the heat index is estimated at a blistering 40°C (104°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

With an average relative humidity of 72%, December is the least humid month in San Juan del Paraná, Paraguay.

Rainfall

In San Juan del Paraná, during December, the rain falls for 15.3 days and regularly aggregates up to 91mm (3.58") of precipitation. In San Juan del Paraná, during the entire year, the rain falls for 152.6 days and collects up to 981mm (38.62") of precipitation.

Daylight

December has the longest days of the year, with an average of 13h and 48min of daylight.
On the first day of the month, sunrise is at 05:40 and sunset at 19:25. On the last day of December, sunrise is at 05:52 and sunset at 19:42 -03.

Sunshine

The average sunshine in December is 10.1h.

UV index

In San Juan del Paraná, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the maximum UV index of 6 suggests this advice:
Shun overexposure. Protection from sun ravages is indispensable. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.