December weather forecast
Isla Umbú, Paraguay

The first month of the summer, December, is also a hot month in Isla Umbú, Paraguay, with an average temperature ranging between min 21.3°C (70.3°F) and max 32.8°C (91°F).

Temperature

The average high-temperature during December registers at a still tropical 32.8°C (91°F), maintaining a close resemblance to the previous month. Throughout December, an average low-temperature of 21.3°C (70.3°F) is expected.

Heat index

The heat index in December is estimated at a scorching 42°C (107.6°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. 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.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Isla Umbú, the average relative humidity in December is 67%.

Rainfall

In Isla Umbú, during December, the rain falls for 11.8 days and regularly aggregates up to 80mm (3.15") of precipitation. In Isla Umbú, during the entire year, the rain falls for 130.3 days and collects up to 747mm (29.41") of precipitation.

Daylight

The month with the longest days is December, with an average of 13h and 48min of daylight.
On the first day of December, sunrise is at 05:50 and sunset at 19:33. On the last day of the month, sunrise is at 06:02 and sunset at 19:50 -03.

Sunshine

With an average of 10.5h of sunshine, December has the most sunshine of the year.

UV index

The months with the highest UV index in Isla Umbú are January, February and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.