December welcomes a continuation of the recurring tropical weather pattern observed throughout much of the year. The temperature rises shift upwards, with a high of 31.7°C (89.1°F). Along with the bountiful sunlight and high humidity, it offers typical summer weather conditions. As the year winds down, the climate reverts to the familiar heat and humidity that defines
Villarrica's most of the year.
Temperature
Shifting into December, Villarrica records an average high-temperature of a still tropical 31.7°C (89.1°F), presenting minor fluctuations compared to the previous month. During December, the temperature is averaged to a low of 20.1°C (68.2°F) at night.
Heat index
For most parts of December, the heat index is appraised at a blistering 40°C (104°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
The months with the lowest humidity in Villarrica are
November and December, with an average relative humidity of 70%.
Rainfall
In Villarrica, during December, the rain falls for 10 days and regularly aggregates up to 146mm (5.75") of precipitation. Throughout the year, in Villarrica,
Paraguay, there are 107 rainfall days, and 1637mm (64.45") of precipitation is accumulated.
Daylight
December has the longest days of the year in Villarrica, with an average of 13h and 42min of daylight.
On the first day of the month, sunrise is at 05:46 and sunset at 19:24. On the last day of December, in Villarrica, sunrise is at 05:57 and sunset at 19:40 -03.