May weather forecast
Petrolândia, Brazil

The last month of the autumn, May, is another tropical month in Petrolândia, Brazil, with temperature in the range of an average low of 20.5°C (68.9°F) and an average high of 30.3°C (86.5°F).

Temperature

Stepping into May, Petrolândia records an average high-temperature of a still hot 30.3°C (86.5°F), almost consistent with April. During the month of May, an average temperature of 20.5°C (68.9°F) is noted during the nights.

Heat index

The average heat index in May is calculated to be a sweltering 37°C (98.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in May is 74%.

Rainfall

In Petrolândia, in May, it is raining for 13.3 days, with typically 27mm (1.06") of accumulated precipitation. In Petrolândia, Brazil, during the entire year, the rain falls for 132.1 days and collects up to 324mm (12.76") of precipitation.

Daylight

In Petrolândia, Brazil, the average length of the day in May is 11h and 43min.
On the first day of the month, sunrise is at 05:36 and sunset at 17:23. On the last day of May, sunrise is at 05:41 and sunset at 17:19 -03.

Sunshine

In May, the average sunshine is 6.4h.

UV index

April through August, with an average maximum UV index of 6, are months with the lowest UV index in Petrolândia. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: During May, 6 as the daily maximum UV index converts into the following advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.