December weather forecast
Belén, Paraguay

The first month of the summer, December, is still a hot month in Belén, Paraguay, with temperature in the range of an average high of 31.8°C (89.2°F) and an average low of 21.1°C (70°F).

Temperature

December commences with an average high-temperature of a still hot 31.8°C (89.2°F), showing little deviation from November's 31°C (87.8°F). During December, Belén witnesses a consistent average low-temperature of 21.1°C (70°F).

Heat index

In December, the average heat index is evaluated at an extremely hot 42°C (107.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In Belén, the average relative humidity in December is 76%.

Rainfall

In Belén, during December, the rain falls for 20.5 days and regularly aggregates up to 120mm (4.72") of precipitation. Throughout the year, there are 166 rainfall days, and 911mm (35.87") of precipitation is accumulated.

Daylight

With an average of 13h and 36min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:53 and sunset at 19:22. On the last day of the month, sunrise is at 06:05 and sunset at 19:38 -03.

Sunshine

In December, the average sunshine in Belén is 10.3h.

UV index

January and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 7 suggests these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.