December weather forecast
Irigoyen, Argentina

December, the first month of the summer in Irigoyen, is a tropical month, with an average temperature varying between 31.8°C (89.2°F) and 18.5°C (65.3°F).

Temperature

The arrival of December denotes a barely perceptible change in the average high-temperatures to a tropical 31.8°C (89.2°F) from November's 29.2°C (84.6°F). December nights are characterized by a notable drop from daytime highs, with an average low-temperature of 18.5°C (65.3°F).

Heat index

Throughout December, the heat index is calculated to be a torrid 35°C (95°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Irigoyen, the average relative humidity in December is 56%.

Rainfall

In Irigoyen, during December, the rain falls for 9.3 days and regularly aggregates up to 68mm (2.68") of precipitation. Throughout the year, there are 101.4 rainfall days, and 542mm (21.34") of precipitation is accumulated.

Daylight

December has the longest days of the year in Irigoyen, with an average of 14h and 12min of daylight.
On the first day of December, sunrise is at 05:50 and sunset at 19:56. On the last day of the month, sunrise is at 06:01 and sunset at 20:14 -03.

Sunshine

December has the most sunshine of the year in Irigoyen, Argentina, with an average of 11.1h of sunshine.

UV index

The months with the highest UV index in Irigoyen are January and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 7 during December leads to these advisories:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.