May weather forecast
Pirambu, Brazil

The last month of the autumn, May, is another warm month in Pirambu, Brazil, with an average temperature ranging between min 23.3°C (73.9°F) and max 29.3°C (84.7°F).

Temperature

The average high-temperature for May is a warm 29.3°C (84.7°F), closely aligning with the temperature of the preceding month. Pirambu, during May nights, observes an average temperature of 23.3°C (73.9°F).

Heat index

The average heat index in May is computed to be a sweltering 36°C (96.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The average relative humidity in May is 80%.

Rainfall

In Pirambu, Brazil, during May, the rain falls for 20.4 days and regularly aggregates up to 86mm (3.39") of precipitation. Throughout the year, in Pirambu, there are 211.1 rainfall days, and 584mm (22.99") of precipitation is accumulated.

Daylight

In Pirambu, the average length of the day in May is 11h and 37min.
On the first day of the month, sunrise is at 05:32 and sunset at 17:16. On the last day of May, in Pirambu, Brazil, sunrise is at 05:39 and sunset at 17:11 -03.

Sunshine

May, July and October, with an average of 7.4h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are May through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index, 6 during May, leads to the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. 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. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.