May weather forecast
Palmeirais, Brazil

May, the last month of the autumn in Palmeirais, is another tropical month, with an average temperature ranging between min 22.4°C (72.3°F) and max 31.8°C (89.2°F).

Temperature

The shift into May reveals an average high-temperature of a still hot 31.8°C (89.2°F), closely mirroring April's climate. The average low-temperature of 22.4°C (72.3°F) is witnessed in Palmeirais during May.

Heat index

The heat index value for May is computed to be a sweltering 39°C (102.2°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In May, the average relative humidity in Palmeirais, Brazil, is 68%.

Rainfall

In May, the rain falls for 13 days. Throughout May, 34mm (1.34") of precipitation is accumulated. In Palmeirais, Brazil, during the entire year, the rain falls for 157.4 days and collects up to 636mm (25.04") of precipitation.

Daylight

In May, the average length of the day in Palmeirais is 11h and 50min.
On the first day of the month, sunrise is at 05:52 and sunset at 17:46. On the last day of May, in Palmeirais, sunrise is at 05:56 and sunset at 17:44 -03.

Sunshine

In Palmeirais, the average sunshine in May is 8.2h.

UV index

January through August, October through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: In May, the maximum UV index of 7 suggests this advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.