In
December,
San Estanislao experiences the peak of summer with average temperatures climbing up to a high of 31.8°C (89.2°F). The holiday season coupled with the warm weather sets a jolly mood throughout the city. The sunshine-filled days are perfect for outdoor activities and festivities. As the month transitions to
January, residents expect a slight dip in temperatures. The higher wind gusts peaking at 13.1km/h (8.1mph) in December adds to the vibrant and dynamic aura of the city during the holiday season.
Temperature
December's onset brings an average high-temperature of a still tropical 31.8°C (89.2°F), showing a minute difference from
November's 31°C (87.8°F). Throughout December, San Estanislao registers a consistent average low-temperature of 21.1°C (70°F).
Heat index
December's average heat index is estimated at a blistering 42°C (107.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
In San Estanislao, the average relative humidity in December is 76%.
Rainfall
In San Estanislao,
Paraguay, in December, during 20.5 rainfall days, 120mm (4.72") of precipitation is typically accumulated. Throughout the year, there are 166 rainfall days, and 911mm (35.87") of precipitation is accumulated.
Daylight
With an average of 13h and 36min of daylight, December has the longest days of the year in San Estanislao.
On the first day of December in San Estanislao, sunrise is at 05:48 and sunset at 19:21. On the last day of the month, sunrise is at 05:59 and sunset at 19:38 -03.
Sunshine
In San Estanislao, Paraguay, the average sunshine in December is 10.3h.
UV index
The months with the highest UV index are January and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, a regular UV index of 7 translates into these guidelines:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.