May weather forecast
Porto da Folha, Brazil

The last month of the autumn, May, is another tropical month in Porto da Folha, Brazil, with an average temperature fluctuating between 20.4°C (68.7°F) and 30°C (86°F).

Temperature

The commencement of May records an average high-temperature of a still hot 30°C (86°F), barely varying from April's 31.9°C (89.4°F). In Porto da Folha, an average nighttime temperature of 20.4°C (68.7°F) is expected during May.

Heat index

May's heat index is computed to be a torrid 37°C (98.6°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Porto da Folha, the average relative humidity in May is 79%.

Rainfall

In Porto da Folha, during May, the rain falls for 15.5 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, there are 130.4 rainfall days, and 289mm (11.38") of precipitation is accumulated.

Daylight

In Porto da Folha, the average length of the day in May is 11h and 40min.
On the first day of the month, sunrise is at 05:33 and sunset at 17:18. On the last day of May, in Porto da Folha, sunrise is at 05:39 and sunset at 17:14 -03.

Sunshine

The average sunshine in May is 6.5h.

UV index

April through September, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 6 in May suggests the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.