May weather forecast
Cacoal, Brazil

May, the last month of the autumn in Cacoal, is another tropical month, with temperature in the range of an average high of 30.7°C (87.3°F) and an average low of 20.2°C (68.4°F).

Temperature

The advent of May denotes an average high-temperature of a still hot 30.7°C (87.3°F), subtly different from April's 30.5°C (86.9°F). Cacoal experiences a steady low-temperature of 20.2°C (68.4°F) throughout May.

Heat index

For May, the heat index is computed to be a scorching 41°C (105.8°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. 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 in Cacoal, Brazil, is 82%.

Rainfall

In May, the rain falls for 19.8 days. Throughout May, 73mm (2.87") of precipitation is accumulated. Throughout the year, there are 235.6 rainfall days, and 1420mm (55.91") of precipitation is accumulated.

Daylight

In May, the average length of the day in Cacoal is 11h and 35min.
On the first day of the month, sunrise is at 06:12 and sunset at 17:53. On the last day of May, sunrise is at 06:18 and sunset at 17:48 -04.

Sunshine

In Cacoal, the average sunshine in May is 6.6h.

UV index

In May, the average daily maximum UV index in Cacoal is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In May, the maximum UV index of 6 translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.