December, the first month of the summer in
San José de Jáchal, is a tropical month, with temperature in the range of an average high of 30.8°C (87.4°F) and an average low of 16.3°C (61.3°F).
Temperature
As December takes its course, San José de Jáchal's average high-temperature registers at a tropical 30.8°C (87.4°F), closely aligning with the preceding month. San José de Jáchal documents a marked decrease from day to night, with an average low of 16.3°C (61.3°F) throughout December.
Heat index
The heat index in December is computed to be a hot 32°C (89.6°F). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. 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 remain especially vital for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In December, the average relative humidity is 48%.
Rainfall
In San José de Jáchal, in December, it is raining for 4 days, with typically 17mm (0.67") of accumulated precipitation. In San José de Jáchal, during the entire year, the rain falls for 34 days and collects up to 142mm (5.59") of precipitation.
Daylight
December has the longest days of the year in San José de Jáchal, with an average of 14h and 6min of daylight.
On the first day of the month, sunrise is at 06:25 and sunset at 20:22. On the last day of December, sunrise is at 06:36 and sunset at 20:40 -03.