December weather forecastFormigueiro, Brazil

Weather in December

The first month of the summer, December, is a hot month in Formigueiro, Brazil, with temperature in the range of an average low of 18°C (64.4°F) and an average high of 30.1°C (86.2°F).

Temperature

Formigueiro, Brazil, indicates an average high-temperature of a tropical 30.1°C (86.2°F) in December, showing minor variation from November's 27.5°C (81.5°F). A steady average of 18°C (64.4°F) throughout December underscores a considerable divergence from the daytime high.

Heat index

The heat index in December is calculated to be a very hot 35°C (95°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. 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 heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

December is the least humid month in Formigueiro, with an average relative humidity of 70%.

Rainfall

In Formigueiro, in December, during 14.2 rainfall days, 78mm (3.07") of precipitation is typically accumulated. In Formigueiro, during the entire year, the rain falls for 146.4 days and collects up to 974mm (38.35") of precipitation.

Daylight

December has the longest days of the year, with an average of 14h and 0min of daylight.
On the first day of the month, sunrise is at 05:25 and sunset at 19:21. On the last day of December, in Formigueiro, sunrise is at 05:36 and sunset at 19:38 -03.

Sunshine

The month with the most sunshine is December, with an average of 8.7h of sunshine.

UV index

In Formigueiro, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 6 during December leads to these advisories:
Inhibit overexposure. Warding off sun damage is of utmost importance. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.