May weather forecastPortel, Brazil

Weather in May

May, the last month of the autumn in Portel, is a tropical month, with an average temperature ranging between min 22.8°C (73°F) and max 30.7°C (87.3°F).

Temperature

May notes an average high-temperature of a hot 30.7°C (87.3°F), subtly differing from April's 29.9°C (85.8°F). During May, Portel experiences a consistent low-temperature average of 22.8°C (73°F).

Heat index

During May, the heat index is computed to be a blisteringly hot 43°C (109.4°F). Vigilance: Heat cramps and heat exhaustion are likely. The likelihood of heatstroke increases with continued activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including 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 particularly meaningful for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in May in Portel is 89%.

Rainfall

In Portel, during May, the rain falls for 28.3 days and regularly aggregates up to 166mm (6.54") of precipitation. In Portel, during the entire year, the rain falls for 282.9 days and collects up to 1449mm (57.05") of precipitation.

Daylight

In May, the average length of the day in Portel is 12h and 2min.
On the first day of May, sunrise is at 06:18 and sunset at 18:21. On the last day of the month, sunrise is at 06:20 and sunset at 18:21 -03.

Sunshine

In May, the average sunshine in Portel is 6.8h.

UV index

May through November, with an average maximum UV index of 7, are months with the highest UV index in Portel, Brazil. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In May, the maximum UV index of 7 translates into these guidelines:
Shield from overexposure. Defense against sun-related harm is required. 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. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.