December weather forecast
Maciá, Argentina

The first month of the summer, December, is a hot month in Maciá, Argentina, with temperature in the range of an average low of 18°C (64.4°F) and an average high of 31.5°C (88.7°F).

Temperature

December's arrival sees a mild rise in the average high-temperature, transitioning from November's warm 28.5°C (83.3°F) to a tropical 31.5°C (88.7°F). Despite the high peak temperatures, Maciá witnesses an average nighttime cooling to a refreshing 18°C (64.4°F) in December.

Heat index

For most parts of December, the heat index is computed to be a fiery hot 35°C (95°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. 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 vital to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In December, the average relative humidity in Maciá is 57%.

Rainfall

In Maciá, in December, it is raining for 9.5 days, with typically 61mm (2.4") of accumulated precipitation. In Maciá, during the entire year, the rain falls for 100.9 days and collects up to 542mm (21.34") of precipitation.

Daylight

With an average of 14h and 12min of daylight, December has the longest days of the year.
On the first day of December in Maciá, sunrise is at 05:43 and sunset at 19:50. On the last day of the month, sunrise is at 05:54 and sunset at 20:07 -03.

Sunshine

With an average of 11.2h of sunshine, December has the most sunshine of the year.

UV index

January and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 7 suggests these recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.