December weather forecast and climate
San Miguel de Tucumán, Argentina

December, the first month of the summer, in San Miguel de Tucumán, is a hot month, with average temperature fluctuating between 30.9°C (87.6°F) and 19°C (66.2°F).

Temperature

In December, the average high-temperature is relatively the same as in November - a hot 30.9°C (87.6°F). In San Miguel de Tucumán, the average low-temperature is 19°C (66.2°F).

Heat index

In December, the average heat index is estimated at a sweltering 35.4°C (95.7°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the 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 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, differences in body mass, height, and shape, wind). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In San Miguel de Tucumán, the average relative humidity in December is 63%.

Rainfall

In San Miguel de Tucumán, Argentina, in December, it is raining for 19.4 days, with typically 133mm (5.24") of accumulated precipitation. In San Miguel de Tucumán, during the entire year, the rain falls for 157.5 days and collects up to 732mm (28.82") of precipitation.

Snowfall

January through June, August through December are months without snowfall.

Daylight

December has the longest days of the year in San Miguel de Tucumán, with an average of 13.8h of daylight.

Sunshine

In December, the average sunshine in San Miguel de Tucumán is 8.7h.

UV index

In December, the average daily maximum UV index in San Miguel de Tucumán is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 in December interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.