May weather forecastMuaná, Brazil

Weather in May

May, the last month of the autumn in Muaná, is a tropical month, with temperature in the range of an average high of 30.8°C (87.4°F) and an average low of 23.3°C (73.9°F).

Temperature

May's weather records an average high-temperature of a tropical 30.8°C (87.4°F), showing little deviation from April. Muaná usually reports an average low-temperature of 23.3°C (73.9°F) during the month of May.

Heat index

During May, the heat index is calculated to be a blistering 43°C (109.4°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
Note that heat index values are valued for light wind and location in the shade. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in May is 88%.

Rainfall

In May, the rain falls for 28.9 days. Throughout May, 203mm (7.99") of precipitation is accumulated. Throughout the year, there are 296.8 rainfall days, and 1567mm (61.69") of precipitation is accumulated.

Daylight

The average length of the day in May is 12h and 3min.
On the first day of the month, sunrise is at 06:12 and sunset at 18:15. On the last day of May, sunrise is at 06:13 and sunset at 18:15 -03.

Sunshine

The average sunshine in May is 7.8h.

UV index

The months with the highest UV index are January through March, May through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In May, the average maximum UV index of 7 translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.