December weather forecast
Derrubadas, Brazil

December, the first month of the summer in Derrubadas, is also a moderately hot month, with an average temperature varying between 18.2°C (64.8°F) and 29.6°C (85.3°F).

Temperature

The beginning of December reveals an average high-temperature of a still moderately hot 29.6°C (85.3°F), showing minimal deviation from the previous month. Throughout December, Derrubadas registers a consistent average low-temperature of 18.2°C (64.8°F).

Heat index

For December, the heat index is evaluated at a torrid 36°C (96.8°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. 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 'apparent temperature' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The least humid month in Derrubadas is December, with an average relative humidity of 78%.

Rainfall

In Derrubadas, during December, the rain falls for 19.1 days and regularly aggregates up to 114mm (4.49") of precipitation. In Derrubadas, during the entire year, the rain falls for 185.1 days and collects up to 1259mm (49.57") of precipitation.

Daylight

With an average of 13h and 48min 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 19:16. On the last day of December, in Derrubadas, sunrise is at 05:43 and sunset at 19:33 -03.

Sunshine

The months with the most sunshine are November and December, with an average of 8.8h of sunshine.

UV index

The months with the highest UV index in Derrubadas are January through March, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a regular UV index of 6 translates into these guidelines:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.