December weather forecast
Santiago del Estero, Argentina

December brings Santiago del Estero back to the familiar grip of summer. The city ends the year with temperatures as high as what were seen in the beginning. Despite recording one of the highest rainfall in the year at 100mm (3.94"), December days are mostly bright and sunny. A blend of end-of-year celebrations and the warm summer weather makes for a festive atmosphere all around. Santiago del Estero in December is undoubtedly a summer city with a lively spirit.

Temperature

Santiago del Estero's average high-temperature marks a still hot 33°C (91.4°F) with the advent of December, closely mirroring that of the preceding month. During the December nights, an average temperature of 21.4°C (70.5°F) is observed in Santiago del Estero, Argentina.

Heat index

In December, the heat index is appraised at a very hot 38°C (100.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in December in Santiago del Estero, Argentina, is 57%.

Rainfall

In Santiago del Estero, in December, it is raining for 14.5 days, with typically 100mm (3.94") of accumulated precipitation. Throughout the year, in Santiago del Estero, Argentina, there are 113.8 rainfall days, and 586mm (23.07") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 13h and 54min of daylight.
On the first day of the month, sunrise is at 06:13 and sunset at 19:59. On the last day of December, in Santiago del Estero, sunrise is at 06:24 and sunset at 20:16 -03.

Sunshine

In Santiago del Estero, Argentina, the average sunshine in December is 8.8h.

UV index

The months with the highest UV index in Santiago del Estero are January, February and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 7 transforms into these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.