May weather forecast
Jaçanã, Brazil

May, the last month of the autumn in Jaçanã, is another hot month, with an average temperature fluctuating between 20.8°C (69.4°F) and 30.2°C (86.4°F).

Temperature

May observes an average high-temperature of a still tropical 30.2°C (86.4°F), marking an insignificant difference from April's 30.7°C (87.3°F). In the month of May, the temperature in Jaçanã generally rests at an average low of 20.8°C (69.4°F).

Heat index

The heat index in May is evaluated at a very hot 37°C (98.6°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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 natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The months with the highest humidity are April and May, with an average relative humidity of 77%.

Rainfall

In Jaçanã, in May, during 18.1 rainfall days, 48mm (1.89") of precipitation is typically accumulated. Throughout the year, in Jaçanã, Brazil, there are 139.1 rainfall days, and 485mm (19.09") of precipitation is accumulated.

Daylight

In Jaçanã, the average length of the day in May is 11h and 50min.
On the first day of the month, sunrise is at 05:25 and sunset at 17:18. On the last day of May, sunrise is at 05:29 and sunset at 17:15 -03.

Sunshine

In Jaçanã, Brazil, the average sunshine in May is 8.2h.

UV index

The months with the lowest UV index are April through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 6 during May translates into the following guidance:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.