December weather forecast
Goiana, Brazil

The first month of the summer, December, is still a tropical month in Goiana, Brazil, with an average temperature fluctuating between 23.8°C (74.8°F) and 30.5°C (86.9°F).

Temperature

As Goiana transitions from November to December, the average high-temperatures adjust to a still hot 30.5°C (86.9°F), nearly the same as the previous 30°C (86°F). Goiana, during December nights, observes an average temperature of 23.8°C (74.8°F).

Heat index

December's average heat index is computed to be a very hot 37°C (98.6°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The months with the lowest humidity are November and December, with an average relative humidity of 72%.

Rainfall

In December, in Goiana, the rain falls for 15.1 days. Throughout December, 20mm (0.79") of precipitation is accumulated. Throughout the year, there are 200.7 rainfall days, and 437mm (17.2") of precipitation is accumulated.

Daylight

With an average of 12h and 36min of daylight, December has the longest days of the year in Goiana.
On the first day of the month, sunrise is at 04:53 and sunset at 17:25. On the last day of December, in Goiana, sunrise is at 05:06 and sunset at 17:40 -03.

Sunshine

In Goiana, Brazil, the average sunshine in December is 7.4h.

UV index

January through April, October through December, with an average maximum UV index of 7, are months with the highest UV index in Goiana. 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 high UV index of 7 in December translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.