May weather forecast
Lucena, Brazil

The last month of the autumn, May, is also a moderately hot month in Lucena, Brazil, with an average temperature varying between 24.3°C (75.7°F) and 29.2°C (84.6°F).

Temperature

Lucena experiences a recorded average high-temperature of a still warm 29.2°C (84.6°F) in May, closely aligned with April's 29.9°C (85.8°F). In May, Lucena's nighttime temperatures demonstrate a slight decrease, stabilizing at an average of 24.3°C (75.7°F).

Heat index

During May, the heat index is evaluated at a sweltering 36°C (96.8°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Heat index data is primarily for areas with shade and subjected to light winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Lucena, the average relative humidity in May is 81%.

Rainfall

In Lucena, in May, during 21.8 rainfall days, 77mm (3.03") of precipitation is typically accumulated. In Lucena, during the entire year, the rain falls for 235.2 days and collects up to 599mm (23.58") of precipitation.

Daylight

In May, the average length of the day in Lucena is 11h and 48min.
On the first day of May, sunrise is at 05:20 and sunset at 17:12. On the last day of the month, sunrise is at 05:24 and sunset at 17:09 -03.

Sunshine

The average sunshine in May is 7.5h.

UV index

January through May, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily high UV index of 7 in May leads to these guidelines:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.