December weather forecastRio Largo, Brazil

Weather in December

The first month of the summer, December, is a hot month in Rio Largo, Brazil, with temperature in the range of an average low of 23.2°C (73.8°F) and an average high of 30.2°C (86.4°F).

Temperature

The commencement of December notes an average high-temperature of a hot 30.2°C (86.4°F), exhibiting little difference from the previous month. Rio Largo's temperature in December lowers to a consistent average of 23.2°C (73.8°F) during the nights.

Heat index

The heat index value for December is appraised at a torrid 37°C (98.6°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The months with the lowest humidity are March and December, with an average relative humidity of 74%.

Rainfall

In Rio Largo, in December, it is raining for 17.2 days, with typically 27mm (1.06") of accumulated precipitation. In Rio Largo, Brazil, during the entire year, the rain falls for 256.6 days and collects up to 686mm (27.01") of precipitation.

Daylight

December has the longest days of the year in Rio Largo, with an average of 12h and 42min of daylight.
On the first day of the month, sunrise is at 04:53 and sunset at 17:31. On the last day of December, in Rio Largo, sunrise is at 05:06 and sunset at 17:46 -03.

Sunshine

In December, the average sunshine is 7.9h.

UV index

January through March, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: During December, 7 as the daily maximum UV index converts into the following advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.