December weather forecast
Prainha, Brazil

December, the first month of the summer in Prainha, is also a hot month, with an average temperature fluctuating between 33.5°C (92.3°F) and 23.8°C (74.8°F).

Temperature

Prainha, Brazil, greets December with an average high-temperature of a tropical 33.5°C (92.3°F), marking a slight deviation from the preceding month. December brings with it a nighttime average temperature of 23.8°C (74.8°F).

Heat index

December's average heat index is calculated to be a burning hot 45°C (113°F). Forewarned: Heat cramps and heat exhaustion are anticipated. Ongoing physical activity increases the likelihood of heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation 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 in Prainha, Brazil, is 70%.

Rainfall

In Prainha, in December, during 20.3 rainfall days, 87mm (3.43") of precipitation is typically accumulated. In Prainha, during the entire year, the rain falls for 238.8 days and collects up to 1168mm (45.98") of precipitation.

Daylight

With an average of 12h and 12min of daylight, December has the longest days of the year in Prainha.
On the first day of the month, sunrise is at 06:16 and sunset at 18:29. On the last day of December, in Prainha, sunrise is at 06:30 and sunset at 18:43 -03.

Sunshine

The average sunshine in December is 8h.

UV index

In Prainha, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 7 in December translates into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.