December weather forecast
Napenay, Argentina

The first month of the summer, December, is also a hot month in Napenay, Argentina, with an average temperature varying between 33°C (91.4°F) and 20.8°C (69.4°F).

Temperature

December's advent denotes a minor fluctuation in the average high-temperature to a still tropical 33°C (91.4°F) from November's 30.7°C (87.3°F). In Napenay, December nights witness a remarkable decline from the day's zenith to a pleasant 20.8°C (69.4°F).

Heat index

December's heat index is estimated at a blistering 41°C (105.8°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. 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 hold great significance to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Napenay, the average relative humidity in December is 65%.

Rainfall

In December, the rain falls for 12.5 days. Throughout December, 68mm (2.68") of precipitation is accumulated. Throughout the year, in Napenay, there are 121 rainfall days, and 618mm (24.33") of precipitation is accumulated.

Daylight

December has the longest days of the year in Napenay, with an average of 13h and 48min of daylight.
On the first day of December, sunrise is at 06:00 and sunset at 19:42. On the last day of the month, sunrise is at 06:12 and sunset at 19:59 -03.

Sunshine

In December, the average sunshine is 8.7h.

UV index

The months with the highest UV index are January, February 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 ordinary person.
Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.