December weather forecast
Arroyos y Esteros, Paraguay

The first month of the summer, December, is still a hot month in Arroyos y Esteros, Paraguay, with temperature in the range of an average low of 22.3°C (72.1°F) and an average high of 33°C (91.4°F).

Temperature

In December, Arroyos y Esteros notes an average high-temperature of a still hot 33°C (91.4°F), hardly different from the preceding month. December nights are marked by an average temperature drop to a pleasant 22.3°C (72.1°F).

Heat index

In December, the average heat index is estimated at a scorching 43°C (109.4°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
Given the heat index, its values are aligned with shaded sites and gentle winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In December, the average relative humidity is 69%.

Rainfall

In Arroyos y Esteros, in December, it is raining for 15.5 days, with typically 104mm (4.09") of accumulated precipitation. In Arroyos y Esteros, during the entire year, the rain falls for 153.2 days and collects up to 865mm (34.06") of precipitation.

Daylight

December has the longest days of the year, with an average of 13h and 42min of daylight.
On the first day of the month, sunrise is at 05:50 and sunset at 19:25. On the last day of December, sunrise is at 06:01 and sunset at 19:41 -03.

Sunshine

The average sunshine in December in Arroyos y Esteros, Paraguay, is 10.4h.

UV index

The months with the highest UV index are January, February, October and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: In December, a daily UV index of 7 turns into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.