May weather forecast
Mata Grande, Brazil

The last month of the autumn, May, is another hot month in Mata Grande, Brazil, with an average temperature varying between 20.7°C (69.3°F) and 30.8°C (87.4°F).

Temperature

The shift into May records an average high-temperature of a still tropical 30.8°C (87.4°F), subtly varied from April's 32.6°C (90.7°F). In the month of May, the nighttime temperature in Mata Grande dips to a steady average of 20.7°C (69.3°F).

Heat index

The heat index value during May is evaluated at a sweltering 39°C (102.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
In the scope of the heat index, its values resonate with shade and light wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in May is 76%.

Rainfall

In May, the rain falls for 12.4 days. Throughout May, 29mm (1.14") of precipitation is accumulated. Throughout the year, in Mata Grande, there are 125 rainfall days, and 272mm (10.71") of precipitation is accumulated.

Daylight

In May, the average length of the day in Mata Grande is 11h and 42min.
On the first day of May, sunrise is at 05:34 and sunset at 17:21. On the last day of the month, sunrise is at 05:39 and sunset at 17:17 -03.

Sunshine

In May, the average sunshine in Mata Grande, Brazil, is 5.9h.

UV index

April through August, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 6 suggests this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.