December weather forecast
Gandu, Brazil

The first month of the summer, December, is a hot month in Gandu, Brazil, with an average temperature fluctuating between 30.4°C (86.7°F) and 19.5°C (67.1°F).

Temperature

With the arrival of December, Gandu's average high-temperature registers at a tropical 30.4°C (86.7°F), indicating a subtle variation from the previous month. Throughout December, Gandu witnesses a nighttime temperature average of 19.5°C (67.1°F).

Heat index

For December, the heat index is evaluated at a scorching 40°C (104°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. 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 relevant to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In December, the average relative humidity is 82%.

Rainfall

In December, in Gandu, the rain falls for 19 days. Throughout December, 55mm (2.17") of precipitation is accumulated. In Gandu, Brazil, during the entire year, the rain falls for 241.8 days and collects up to 524mm (20.63") of precipitation.

Daylight

With an average of 12h and 54min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:00 and sunset at 17:53. On the last day of the month, sunrise is at 05:13 and sunset at 18:08 -03.

Sunshine

The average sunshine in December is 7.5h.

UV index

The months with the highest UV index in Gandu are January through May, September through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily maximum UV index of 6 in December translates into the following instructions:
Deter overexposure. Protecting against the sun's effects is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.