December weather forecast
Balsas, Brazil

The first month of the summer, December, is still a tropical month in Balsas, Brazil, with an average temperature ranging between max 31.5°C (88.7°F) and min 22°C (71.6°F).

Temperature

Entering December, Balsas's average high-temperature reads a still hot 31.5°C (88.7°F), indicating a close resemblance to the previous month's climate. Balsas witnesses an average low-temperature of 22°C (71.6°F) throughout the month of December.

Heat index

The heat index value during December is calculated to be a blistering 41°C (105.8°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual'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 largely significant for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In December, the average relative humidity in Balsas is 75%.

Rainfall

In December, the rain falls for 24.3 days. Throughout December, 107mm (4.21") of precipitation is accumulated. In Balsas, during the entire year, the rain falls for 178.4 days and collects up to 785mm (30.91") of precipitation.

Daylight

The month with the longest days in Balsas is December, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 05:37 and sunset at 18:09. On the last day of December, sunrise is at 05:50 and sunset at 18:24 -03.

Sunshine

In Balsas, the average sunshine in December is 9.4h.

UV index

The months with the lowest UV index in Balsas are January through June, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 6 during December morphs into the following directions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Boost your sun resistance with garments that are densely woven yet spacious.