May weather forecast
Breves, Brazil

The last month of the autumn, May, is a hot month in Breves, Brazil, with temperature in the range of an average high of 30.7°C (87.3°F) and an average low of 22.8°C (73°F).

Temperature

The average high-temperature is a tropical 30.7°C (87.3°F) in May, hardly different from the 29.9°C (85.8°F) recorded in April. The month of May records an average low-temperature of 22.8°C (73°F).

Heat index

May's average heat index is appraised at a blistering 43°C (109.4°F). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.
The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical 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 keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In May, the average relative humidity is 89%.

Rainfall

In May, the rain falls for 28.3 days. Throughout May, 166mm (6.54") of precipitation is accumulated. Throughout the year, there are 282.9 rainfall days, and 1449mm (57.05") of precipitation is accumulated.

Daylight

The average length of the day in May in Breves is 12h and 2min.
On the first day of the month, sunrise is at 06:17 and sunset at 18:20. On the last day of May, sunrise is at 06:18 and sunset at 18:20 -03.

Sunshine

The average sunshine in May is 6.8h.

UV index

May through November, with an average maximum UV index of 7, are months with the highest UV index in Breves. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In May, the average maximum UV index of 7 translates into the following recommendations:
Fend off overexposure. Sun protection is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.