December weather forecast
Congonhinhas, Brazil

December, the first month of the summer in Congonhinhas, is also a moderately hot month, with an average temperature fluctuating between 19.5°C (67.1°F) and 29.4°C (84.9°F).

Temperature

The advent of December signifies a minor shift to an average high-temperature of a still warm 29.4°C (84.9°F), aligning closely with November. Congonhinhas records a steady low-temperature average of 19.5°C (67.1°F) during December.

Heat index

In December, the average heat index is calculated to be a very hot 36°C (96.8°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In Congonhinhas, the average relative humidity in December is 81%.

Rainfall

In Congonhinhas, in December, during 25.1 rainfall days, 139mm (5.47") of precipitation is typically accumulated. In Congonhinhas, during the entire year, the rain falls for 202.5 days and collects up to 1195mm (47.05") of precipitation.

Daylight

With an average of 13h and 36min of daylight, December has the longest days of the year in Congonhinhas, Brazil.
On the first day of December in Congonhinhas, sunrise is at 05:26 and sunset at 18:55. On the last day of the month, sunrise is at 05:38 and sunset at 19:12 -03.

Sunshine

In December, the average sunshine is 7.9h.

UV index

April through July and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: The UV index of 5 in December translates into these instructions:
Guard yourself - Avoiding sunburn is suggested. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.