May weather forecast
Serra Preta, Brazil

May, the last month of the autumn in Serra Preta, is also a moderately hot month, with an average temperature fluctuating between 20.6°C (69.1°F) and 29°C (84.2°F).

Temperature

The onset of May brings with it an average high-temperature of a moderately hot 29°C (84.2°F), showing a negligible variation from the month before. Nighttime temperature in Serra Preta, Brazil, experiences an average drop to an agreeable 20.6°C (69.1°F) in May.

Heat index

May's average heat index is calculated to be a torrid 35°C (95°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in May is 82%.

Rainfall

In Serra Preta, in May, during 20.7 rainfall days, 33mm (1.3") of precipitation is typically accumulated. In Serra Preta, Brazil, during the entire year, the rain falls for 222.1 days and collects up to 403mm (15.87") of precipitation.

Daylight

In Serra Preta, the average length of the day in May is 11h and 34min.
On the first day of the month, sunrise is at 05:44 and sunset at 17:24. On the last day of May, in Serra Preta, sunrise is at 05:51 and sunset at 17:18 -03.

Sunshine

May has the least sunshine of the year, with an average of 5.1h of sunshine.

UV index

In May, the average daily maximum UV index in Serra Preta is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In May, the maximum UV index of 6 translates into these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.