December weather forecast
Mata Roma, Brazil

The first month of the summer, December, is still a tropical month in Mata Roma, Brazil, with an average temperature ranging between max 33.3°C (91.9°F) and min 23°C (73.4°F).

Temperature

Entering December, the average high-temperature is recorded at a hot 33.3°C (91.9°F), exhibiting a minimal shift from November's 35.2°C (95.4°F). Mata Roma, in December, observes a steady average low-temperature of 23°C (73.4°F).

Heat index

For most parts of December, the heat index is appraised at a blazing hot 46°C (114.8°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In Mata Roma, the average relative humidity in December is 74%.

Rainfall

In December, the rain falls for 21.5 days. Throughout December, 95mm (3.74") of precipitation is accumulated. In Mata Roma, during the entire year, the rain falls for 245.1 days and collects up to 1260mm (49.61") of precipitation.

Daylight

With an average of 12h and 18min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:32 and sunset at 17:51. On the last day of December, in Mata Roma, sunrise is at 05:45 and sunset at 18:05 -03.

Sunshine

In December, the average sunshine in Mata Roma is 8.1h.

UV index

The months with the lowest UV index are January through June and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during December translates into the following directions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.