December weather forecast
San Juan Nepomuceno, Paraguay

The first month of the summer, December, is still a tropical month in San Juan Nepomuceno, Paraguay, with an average temperature fluctuating between 21.2°C (70.2°F) and 32.2°C (90°F).

Temperature

San Juan Nepomuceno transitions into December recording an average high-temperature of a still tropical 32.2°C (90°F), closely aligning with the preceding month's temperature. Throughout December, San Juan Nepomuceno witnesses a nighttime temperature average of 21.2°C (70.2°F).

Heat index

The heat index in December is calculated to be an extremely hot 43°C (109.4°F). Beware: Heat exhaustion along with heat cramps are on the cards. Heatstroke could result from sustained physical activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In San Juan Nepomuceno, the average relative humidity in December is 74%.

Rainfall

In San Juan Nepomuceno, during December, the rain falls for 18.1 days and regularly aggregates up to 91mm (3.58") of precipitation. In San Juan Nepomuceno, during the entire year, the rain falls for 166.5 days and collects up to 885mm (34.84") of precipitation.

Daylight

With an average of 13h and 42min of daylight, December has the longest days of the year in San Juan Nepomuceno.
On the first day of the month, sunrise is at 05:43 and sunset at 19:22. On the last day of December, in San Juan Nepomuceno, sunrise is at 05:54 and sunset at 19:39 -03.

Sunshine

November and December, with an average of 10.5h of sunshine, are months with the most sunshine in San Juan Nepomuceno.

UV index

January and December, with an average maximum UV index of 7, are months with the highest UV index in San Juan Nepomuceno. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during December leads to these advisories:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.