December weather forecast
Mandaguaçu, Brazil

The first month of the summer, December, is also a moderately hot month in Mandaguaçu, Brazil, with temperature in the range of an average low of 20.1°C (68.2°F) and an average high of 29.5°C (85.1°F).

Temperature

Mandaguaçu, Brazil, experiences a subtle adjustment in high-temperatures to a still moderately hot 29.5°C (85.1°F) with the onset of December, maintaining near parity with November's 29.7°C (85.5°F). An average low-temperature of 20.1°C (68.2°F) marks the month of December in Mandaguaçu.

Heat index

Throughout December, the heat index is evaluated at a torrid 36°C (96.8°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Know that the heat index computations account for shaded terrains and slight winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Mandaguaçu, the average relative humidity in December is 79%.

Rainfall

In Mandaguaçu, Brazil, in December, it is raining for 25.4 days, with typically 170mm (6.69") of accumulated precipitation. In Mandaguaçu, during the entire year, the rain falls for 196.7 days and collects up to 1243mm (48.94") of precipitation.

Daylight

The month with the longest days is December, with an average of 13h and 30min of daylight.
On the first day of the month, sunrise is at 05:33 and sunset at 19:01. On the last day of December, in Mandaguaçu, Brazil, sunrise is at 05:45 and sunset at 19:18 -03.

Sunshine

The average sunshine in December in Mandaguaçu is 8.1h.

UV index

The months with the lowest UV index are April through July and December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 5 in December suggests the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Enhance your sun protection with tightly woven, yet airy clothing.